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Service Manual

1. 14 15 16 1 2 3 4 5 6 7 8 9 10 12 13 E Rum ee tel FLYBACK CONVERTER V569 e Bos BC869 4 TP571 0 33E x Md x L569 N MER 68uH 3V3GAR _ 4 813 gt PEPY 3V3SADC paraan SSeS 1 HEP VGARVAL 150u Y LINEAR SUPPLY 5414 150u EG 1500 Pu 55 B R508 s 10K ieee ATH 1 8VA 11 810 2 B10 BATIDENT _
2. 1 2 3 4 5 6 7 8 8 10 11 12 13 14 15 16 17 RG yp ee VDDO J sB16 5 15 TE i FLASH ROM TP488 Bee ADC CHANNEL A I x DDD et 1 Tant a eee i VDDDA 21 LCDONOFF LCDONOFF VDDDB R454 D474 L 10 I 201 1 15 1E R403 VDDAA VDDo 19 DATACLKO DATACLKO 28F800 21 5 811 10 18 1 5 810 12VPROG VDDAA uL R488 3V3A 5 16 ROM A16 48 arg taia
3. ST8560 980330 ST8560 WMF Figure 9 8 Main PCA side 2 PCB Version lt 3 9 14 Circuit Diagrams 9 2 Schematic Diagrams 9 5 097 m TP436 TP338 48 rp332 TP331 TP303 R321 N N R322 16 14 Lr 97 TP152 156 TP310 331 332 336 338 TP431 432 436 437 438 482 483 486 TP151 TP251 254 255 256 TP301 304 308 309 311 321 322 Figure 9 9 Main PCA side 1 PCB version 3 el 309 TP321 TP482 TP432 og IP476 T7400 591 TP536 o 473 gt e gc 09 T
4. 606 54 T Ie 605 606 o ST8560 1 991117 St8560 1 wmf Figure 9 10 Main PCA side 2 PCB version 3 9 16 Chapter 10 Modifications Title Page 10 1 Software
5. 5 13 5 8 Capacitance Gain Calibration Input Connections 5 14 6 1 Bluke43 Main Assembly l l 6 4 vii 43 Service Manual 6 2 eM 6 5 6 3 Main PCA Unit 6 7 6 4 Mounting the display shielding 6 9 6 52 Battery pack mstallatiOnics ette bte 6 9 7 1 Operative Test Tool without 7 3 8 1 Fluke 43 inal Assembly 222222 rennen 8 5 8 2 PCA Unt ya hat ar mn seh Bin 8 7 9 Circuit Diagram 1 Channel 1 9 7 9 2 Circuit Diagram 2 Channel 2 9 8 9 3 Circuit Diagram 3 Trigger rennen 9 9 9 4 Circuit Diagram 4 Digital 9 10 9 5 Circuit Diagram 4 cont Digital Circuit Keyboard 9 11 9 6 Circuit Diagram 5 Power 9 12 9 7 Main PCA side 1 PCB Version lt 3 0004 4 200000 0000000000 nennen 9 13 9 8 Main PCA side 2 Version lt 3 4 420400000 0000000 9 14 9 9 Main PCA side 1 PCB version 3 9 15 9 10 PCA side 2 v
6. 40 Mechanical Height x width x 2 22 232 x 115 x 50 mm 9 1 x 4 5 x 2 in Weight including battery 1 1 kg 2 5 Ib un ee eh DP RS232 optically isolated Supported Printers HP Deskjet Laserjet PostScript and Epson FX80 Serial via PM9080 optically isolated RS232 Adapter Cable Parallel via PAC91 optically isolated Print Adapter Cable optional ToC e RR Dump and load settings and data Serial via PM9080 optically isolated RS232 adapter cable using SW43W FlukeView Power Quality Analyzer software 2 5 Current Probe A Safety Characteristics Designed for measurements on 600 Vrms Category III Protection class II double or reinforced insulation requirements in accordance with 1010 1 ANSVISA S82 CSA C22 2 No 1010 1 92 UL1244 Electrical Specifications CUEN tange ete te tr tte 1 A to 500 Arms AC current over range 1 nennen nennen 700 Arms Maximum 10 minutes followed by removal from current carrying conductor for 30 minutes Output Signal eet trt ttt ete eee mV ac A ac 2 8 Characteristics 2 6 Environmental Conditions 2 Accuracy 5 to 10 Hz 110 SOO Aussaat 3 dB typically 10 to 20 Hz 110300 Aa BERE ES t5 tuu 0 Ne kuQu t 15 96 200 10 5 00 ee et
7. 7 11 7 5 6 Input Channel 1 and 2 Voltage 7 11 7 5 7 Ohms and Capacitance Measurements 7 12 758 Ingger Functions teet etes 7 13 75 9 Reference Voltages 2 222 2222 7 14 LIAO Buzzer CE ne AIRE hessen 7 14 7 5 11 Reset ROM Line 7 14 TAZ RAM Tesi ae ehesten 7 14 1 93 13 Power ON OFF ne ea ana 7 15 J S 14 PWM 7 15 JT PS Randomize 7 15 List of Replaceable Parts J J J 8 1 8 1 Introduction u sQ 5588E m naneaenma nocens namens 8 3 5 2 How to Obtain Parts rtr 8 3 8 3 Final Assembly 8 4 Man BEA trud muu ddr 8 6 o S Malu e Parts ee sm oc o tU C 8 7 8 6 Accessory Replacement Parts teet tette ttt tentent 8 23 Circuit Diagtams nn a eh 9 1 Introduction s 9 3 9 2 Schematic Diagrams 9 3 L isr li perire 10 1 Software modifications a eret rte tte eee reet 10 3 10 2 Hardware 10 3 List of Tables Table Title Page 1 1 1 3 2215 No Visible Disturbance a sk 2 10 222 Dist rbance lt T 2 10 2 3 Disturbance 10 En een nassen 2 10 3 1 Eluke 45 Main B
8. 20 30 25 counts A ac and A ac dc True RMS input 2 y D ran ae 1 96 10 counts dur 30 25 counts 2 6 Characteristics 2 3 Function Specifications 2 Frequency Hz Pulse width Duty cycle 2 0 to 98 0 U Hzto I 0 5 96 2 counts to I0 MBIZ niente eene E eee 1 96 2 counts TO MEIZ 2 5 2 counts Phase Input 1 to Input 2 Up to 60 HzZ E 2 60 HZ A Xu u wu Wu w Wa G he Sah 5 Peak voltage Peak m x 5 of full scale Peak peak tete tee 10 of full scale Crest Range REP 1 0 to 10 0 5 96 1 count 2 3 3 Meter Ohm Ranges oor ete tine tt eee 500 0 to 5 000 MO 30 00 MQ 0 6 5 counts Max Measurement Cutrent aa 0 5 mA Measurement Voltage at open lt 4 Diode PR CCUPACY M TER 2 96 5 counts Max Measurement Current 0 5 mA Measurement Voltage at open circuit 0 0 lt 4 Continuity hii lt 30 0 50 Measurement 2 101 020214 0 60000000000000000 aaa ntn tenes se
9. eene 5 7 5 6 Final Calibration o NL ge SU USED 5 7 5 61 HF Gain Input T i 222 ee 5 8 5 6 2 Delta T Gain Trigger Delay Time amp Pulse Adjust Input 1 5 9 5 6 3 Gain DMM Gain Volt 5 10 5 64 Volt Zero na rn 5 12 56 5 Gains sana S aS ttt 5 12 5 6 6 Capacitance Gain Low and High eene 5 13 5 6 7 Capacitance Clamp amp 7 5 14 5 6 8 Capacitance Gai ose gebe REED 5 14 5 7 Save Calibration Data and 0 0 5 15 Calibration Adjustment 5 1 General 5 1 General 5 1 1 Introduction The following information provides the complete Calibration Adjustment procedure for the Fluke 43 test tool The test tool allows closed case calibration using known reference sources It measures the reference signals calculates the correction factors and stores the correction factors in RAM After completing the calibration the correction factors can be stored in FlashROM The test tool should be calibrated after repair or if it fails the performance test The test tool has a normal calibration cycle of one year 5 1 2 Calibration number and date When storing valid calibration data in FlashROM after performing the calibration adjustment procedure the calibration date is set to the actual test tool date and calibration number is raised by one To display the calibration date and number Press to switch on
10. Reference Description Ordering Code Designator D475 256K8SRAM M5M5208KV10VLL 5322 209 14844 D480 4X2 INP OR 741 VC32APW 4022 304 10771 D531 8 INP 74 40510 PEL 5322 209 61483 H495 PE BUZZER PKM13EPP 4002 MUR 5322 280 10311 H521 IR LED SFH409 2 SIE 5322 130 61296 H522 PHOTODIODE OP906 OPT 5322 130 10777 K171 RELAY ASL 1 5W K BO5 5322 280 10309 K173 RELAY DSP1 L 1 5V 5322 280 10312 K271 DPDT RELAY ASL 1 5W K BO5 5322 280 10309 L181 CHIP INDUCT 47UH 10 TDK 4822 157 70794 L182 CHIP INDUCT 47UH 10 TDK 4822 157 70794 L183 CHIP INDUCT 47UH 10 TDK 4822 157 70794 L281 CHIP INDUCT 47UH 10 TDK 4822 157 70794 L282 CHIP INDUCT 47UH 10 TDK 4822 157 70794 L283 CHIP INDUCT 47UH 10 TDK 4822 157 70794 L481 CHIP INDUCT 47UH 10 TDK 4822 157 70794 L501 CHOKE 33UH TDK 5322 157 10994 L562 CHIP INDUCT 47UH 10 TDK 4822 157 70794 L563 CHIP INDUCT 47UH 10 TDK 4822 157 70794 L564 FIXED INDUCOR 68UH 10 TDK 5322 157 10995 L566 FIXED INDUCOR 68UH 10 TDK 5322 157 10995 L567 CHIP INDUCT 47UH 10 TDK 4822 157 70794 L569 FIXED INDUCOR 68UH 10 TDK 5322 157 10995 L600 SHIELDED CHOKE 150UH TDK 5322 157 10996 N101 C ASIC 00258 5322 209 13141 N201 C ASIC 00258 5322 209 13141 List of Replaceable Parts 8 5 Main PCA Parts 8 Reference Description Ordering Code Designator N202 LOW POW OPAMP LM73011MX 5322 209 16799 N301 T ASIC 000257 5322 209 13142 N501 P ASIC 00025
11. 3 cnm T R524 PWRONOFF 4 143 Er R535 SIS TP527 i R528 L 529 i 34K8 100 SLOW ADC H 0528 a 9453 m Lo BACKLIGHT CONVERTER li NM 6 L600 ceos SADC_BUS al _ 2 7 150u 33p 12 105 3 8 HV OUTPUT AN ae 2 TO LCD MODULE TP501 592 TP593 3 F8 MBRS340 T 47n la m 9 3 68 Nt 7 600 l 74 4051 4 SF3P03 T600 z SELMUXO 11 so vcc 1 3V3SADC _ MS454 SELMUX1 GND S 5 I o SELMUX2 9 s2 vee TP536 N531 534 TP603 ven 7 NC 2 6 L LMC7101 0 N600 oe DF3NO2 871 C 505 V603 3 1 GND 16 S BC858 16 BATIDENT 13 vo z3 1 B5 BATVOLT 14 1 6 SLOWADC R532 C603 2 AOUT PGND 15 2 Bub 4 lt gt T BATTEM 15 Y1 3 100E C583 R529 R527 100n 3 ve cour 14 C606 1 S lt Y2 5 41 261K 147E BATCUR 12 ys 5 4 27 1000 rn TP600 H 4 come ENBL F e 5 lt DACTESTA 1 v4 ae TP522 T T 5 6 S vec REF BLC13 DACTESTB 5 v5 IF N531 NE5230 2 0532 REF j NC 8 DACTESTT 2 ve 220 ROS jo NY NC o u R604 LCDTEMP1 Se 1 41 ey cm mem dr 10K p cr ZD 7P ton 1K E i 1 103872 7 MUX TP537 N GR C605 TLON d TOK R531 p zu OP906 T SFH409 An gt V604 ISADCLEV i RS232j R6
12. R136 R137 R138 R139 R140 R141 R142 R143 R144 R146 R151 R152 R153 R154 R155 R156 R157 R158 R159 R160 R161 R165 R171 R172 R173 R182 R184 R186 R188 R189 R201 R202 R203 RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RC 02G 1 100E RC 02H 1 56K2 RC 02H 1 56K2 RC 02H 1 56K2 RC 02H 1 56K2 RC12G 1 215K RC12G 1 147K RC12G 1 909K RC12H 1 348E RC12H 196 215K RC12H 196 100K RC12H 196 100K RC12H 196 681K RC12H 196 681K RC12H 196 178K RC12G 1 100K RC12H 196 348E RC12H 196 287E RC12H 196 100E RC12H 196 51K1 RC12G 196 100K RC12H 196 100E RC12H 196 348E PTC THERM DISC 600V 300 500E RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RC12H 196 348E RC12H 196 10E RC12H 196 10E RC12H 196 10E RC12H 196 10E RC12H 196 10E MTL FILM RST MRS25 1 487K MTL FILM RST MRS25 1 487K RESISTOR CHIP RC12H 196 1M 4822 051 51001 5322 117 10574 5322 117 10574 5322 117 10574 5322 117 10574 5322 117 12488 5322 117 12489 5322 117 12491 5322 117 12456 5322 117 12457 5322 117 12458 5322 117 12485 5322 117 12485 5322 117 12458 5322 117 12459 5322 117 12485 53
13. 495 p pr APCE MN B 16 ADC B 02 d Fil ua R496 BUZ REFADCT 8 17 ADCR 03 FREQPS 5 3K16 VRT D3 B L FREQPS 5 615 4 6451 D451 54 18 ADC_B_D4 KEYPAD FOIL MAINVAL m 4p7 0452 9 VRM ps 18 ADC B_D5 F8 R49 caso 100 8792 20 ace I Cook 65 85 REFADCB 10 vRB 07 21 ADC_B_D7 4 8401 3 4 B402 3 B403 VGAHVALE 22n i 32KHz 16MHz 25 2 VGARVAL 5 810 J L C453 7 IREF 24 SMPCLK 2 1 2 ft 1 PWRONOFF 5 616 H 100n OEN l RXD 5 H15 A BHB REF BUS VSSA2 55 1 STBY NC VSSD VSSO 1 i TXD 5 H15 5 C486 C485 C484 C483 C482 C481 12 1 11 23 2 i SEE CIRCUIT DIAGRAM 4 27 27 22 22 22 22 ST8557 1 MIDADC B 9 DIGITAL CIRCUIT KEYBOARD 000121 ST8557 1 WMF Figure 9 4 Circuit Diagram 4 Digital Circuit 9 10 Circuit Diagrams 9 9 2 Schematic Diagrams D ASIC 0002 ROW2 KEYPAD FOIL n m ASSI 52552505505 SHIELDING SLAP 2222222224 MS445 MS444 MS443 MS442 MS441 MS440 MS439 MS438 MS437 MS436 MS435 MS434 MS433 MS432 MS431 RECORD ST8558 980722 ST8558 WMF Figure 9 5 Circuit Diagram 4 cont Digital Circuit Keyboard 9 11 43 Service Manual
14. REFATT ICAL ar 3 1 1 1 1 1 REF_BUS 3 H8 COMMON ST8554 black input 980722 G ST8554 WMF Figure 9 1 Circuit Diagram 1 Channel 1 Circuit 9 7 43 Service Manual 1 2 3 4 5 6 7 8 9 10 N201 Ee for bre abt 1 INPUT BLOCK Bao L281 10 8 47u 3V3A X100 DCBIAS VATTP3V3 o 15 16 1 C282 C281 ab 7 PROBE B Zn n 100n 22u D2 L282 47 3V3A R24 VATTN3V3 AU SSA 5 016 1 1 VAMPPSUP 1 1 1283 1 1 R237 R238 R239 R240 14 swuro ERBE au 5VA 15 816 261 261 261 215 12 GNDHFO 1 Ze 16 VAMPN3V3 1 B I C206 R290 C292 mim C293 HEI 1 4n7 56 2 10n 10n 1 1 1 1 1 SWHF1 GNDHF1 GNDDIG HF2 VDIGN3V3 VDIGN3V3 R207 CERR1 56K2 SWHF2 APWM_BUS GNDHF2 iti I R293 46K4 TP259 HF3 C295 GNDHF3 ADDRESS R295 s 1 1 215K orree OFFSET_B c orn p GN ap C C aaa REF BUS 3 H8 TE REFN Ne 10n R296 3 eee v D BC848C 5 E UE DACTEST DACTESTB 542 A8 V V A8 2591 R294 4 100n 100K C296 C297 470p 1 T 100n TP254 ADC B 4 11 1 R209 2K15 TP255 C261 A M te selle aei Mann 100n 1 22n R203 MIDADC MIDADG B 4 1 I I CHANNEL 21 256 1 I 2 3 TRIG_B R201 R202 4 R204 TRIGGER 3 01 1 1
15. TP537 TP534 1TP593 451 54 TP503 ST8561 1 991117 pT PEON 603 TP487 TP573 TP600 605 TP253 TP 471 474 476 TP528 551 552 574 576 592 593 TP 526 534 536 537 561 591 TP306 307 503 522 527 531 571 TP501 502 504 529 577 St8561 1 wmf 9 15 43 Service Manual Rea W 9 1 gt A
16. 10 11 12 13 Connect the test tool to the 5500A as shown in Figure 4 2 FLUKE 5500A CALIBRATOR ST8004 CGM Figure 4 2 Test Tool Input 1 to 5500A Scope Output 500 Select the AUTO test tool setup e Press to select the MENU e Press Ss till SCOPE is highlighted Press to select SCOPE mode Select timebase of 100 ns d e Press to select RANGE Press 20 to select 100 ns d Select sensitivity of 200 mV d e Press to select 200 mV d Set the 5500A to source a5 MHz leveled sine wave of 100 mV peak to peak SCOPE output MODE levsine Verify that the signal is well triggered if necessary adjust the trigger level see 7 Adjusting trigger level e Press to highlight TRIGGER then press to adjust the trigger level Set the 5500A to source a 25 MHz leveled sine wave of 400 mV peak to peak Select timebase of 20 ns d e Press to select RANGE e Press 20 to select 20 ns d Verify that the signal is well triggered if necessary adjust the trigger level see 7 Set the 5500A to source a 40 MHz leveled sine wave of 1 8V peak to peak Verify that the signal is well triggered if necessary adjust the trigger level see 7 When you are finished set the 5500A to Standby Performance Verification 4 5 Input 1 and Input 2 Tests in the SCOPE MODE 4 5 2 Input 1 Frequency Response Upper Transition Point Test Proceed as follows to test the Input 1 frequency response upper transition point
17. 10 3 10 2 Hardware 10 3 10 1 0 10 1 Software modifications 10 1 Software modifications Changes and improvements made to the test tool software firmware are identified by incrementing the software version number These changes are documented on a supplemental change errata sheet which when applicable is included with the manual To display the software version proceed as follows 1 Press Menu to open the MENU Press e to highlight INSTRUMENT SETUP Press to select INSTRUMENT SETUP Press e to highlight VERSION amp CALIBRATION Press to select VERSION amp CALIBRATION Press twice to return to your measuring mode or to go to MENU Qv veh ees 5 The first software release of the Fluke 43 is V01 02 10 2 Hardware modifications Changes and improvements made to the test tool hardware are identified by incrementing the revision number of the Main PCA The revision number is printed on a sticker see the example below The sticker is placed on D ASIC D471 on the Main PCA This example of the Main PCA revision number sticker indicates revision 1 Revision 03 In units having serial numbers DM7480000 and higher a new version of the Printed Circuit Board is used in the Main PCA The version of the is indicated by the last digit of the 12 digit number on the PCB edge near N501 The new version 12 digit code is 4022
18. READY Calibration adjustment step finished Error xxxx Calibration adjustment failed due to wrong input signal s or because the test tool is defective The error codes xxxx are shown for production purposes only 5 5 43 Service Manual Functions of the keys F1 ENTER are PREV select the previous step NEXT select the next step CAL start the calibration adjustment of the actual step EXIT leave the Maintenance mode Readings and traces After completing a calibration step readings and traces are shown using the new calibration data 5 4 Contrast Calibration Adjustment After entering the Maintenance mode the test tool display shows Warming Up CL 0200 IDLE valid Do not press now If you did turn the test tool off and on and enter the Maintenance mode again Proceed as follows to adjust the maximum display darkness CL0100 the default contrast CL0110 and the maximum display brightness CL0120 1 Press a three times to select the first calibration step The display shows Contrast CL 0100 MANUAL 2 Press CAL The display will show a dark test pattern see Figure 5 2 3 Using o adjust the display to the maximum darkness at which the test pattern is only just visible 4 Press to select the default contrast calibration The display shows Contrast CL 0110 MANUAL 5 Press CAL The display shows the test pattern at default contrast 6 Using o set the display to optimal becomes default
19. Set the 5500A to operate OPR Press to start the calibration Wait until the display shows Cap Gain CL 0960 READY IN re Continue at Section 5 7 to save the calibration data 5 7 Save Calibration Data and Exit Proceed as follows to save the calibration data and to exit the Maintenance mode 1 Remove all test leads from the test tool inputs 2 Press EXIT The test tool will display Calibration data are valid Save data and EXIT maintenance Note Calibration data valid indicates that the calibration adjustment procedure is performed correctly It does not indicate that the test tool meets the characteristics listed in Chapter 2 3 Press YES to save and exit Notes The calibration number and date will be updated only if the calibration data have been changed and the data are valid The calibration data will change when a calibration adjustment has been done The data will not change when just entering and then leaving the maintenance mode without doing a calibration adjustment The calibration number and date will NOT be updated if only the display contrast has been adjusted Possible error messages Invalid calibration data WARNING Calibration data NOT valid Save data and EXIT Proceed as follows e To return to the Maintenance mode Press NO Now press until the display shows WarmingUp CL 0200 IDLE and calibrate the test tool starting at Section 5 5
20. Supply Voltages The 5VA 3V3A and 3V3A supply voltages are supplied by the Fly Back Converter on the POWER part The voltages are present only if the test tool is turned on 3 3 3 Trigger Circuit 3 20 The description refers to circuit diagram Figure 9 3 trigger section is built up around the T ASIC 000257 It provides the following functions e Triggering trigger source selection trigger signal conditioning and generation of trigger information to be supplied to the D ASIC e Current source for resistance and capacitance measurements e Voltage reference source buffering and generation of reference voltages e AC DC relay and Resistance Capacitance Q F relay control Triggering Figure 3 10 shows the block diagram of the T ASIC trigger section TRIGLEV1 a 35 ALLTRIG select synchronize 34 logic delta t TRIGDT T HOLDOFF 28 SMPCLK 29 DACTEST TRIG A TRIG B Figure 3 10 T ASIC Trigger Section Block Diagram The analog trigger path uses the Input 1 TRIG A or Input 2 TRIG B signal for triggering In the Transients mode the TRIG A or TRIG B signal is routed via a high pass filter TVOUT TVSYNC The High Pass Filter consists of C395 and R399 The TRIG A TRIG B or TVSYNC signal and two trigger level voltages TRIGLEVI and TRIGLEV2 are supplied to the analog trigger part The trigger level voltages are supplied by the PWM section on the Digital part See Section 3
21. e Savma s dialaoi eub 5 EB Lisalova HOLY3ANOI 1 k LHONNOva 1 RY i L V1S310Vg 109X Inaal va a TTIOA1V8 8 Je JjdjONOUNd gt Aq10qvs Hnolva SdO3H3 gt TVANIVA id YOLU3ANOI XIVE YOLYSANOD l ene H3OuVHO o H3MOd AS 3 x lt lt z e CUWABVOA lt HV3NIT1 m Sng WMdv QUVOSA33 sna oavs Avas zsvx nos 380ud IT mm 44 ESE A 8 00v 7 330NOUMd mE sual TVAHVOA Sg WM nng EE 2000 LOW 1VLIOIQ 3ZIWOGQNVH 91 8Viva 1d9lHl v oav TOM BVOEAE snaoavs 1 IHOIDIOVH gt 9 viva 4 091 13S34 HSV14 LINN 91 ssauqav sna a97 TWLIDIG Nelt Wima 0 rer EEE 77 mi S39YLI0A 115319va 3oNad3Jdu WONS ivas 1 3155 T 1 9 AEZ H T 434 du 152000 T u355IHL l ao i 4 U VNHO id bi E 5 ecWMdd3H ZEEN 6 gt ep LA3191H1 YOLVYVd3S NOILO310Hd
22. 1 Connect the test tool to the 5500A as for the previous test see Figure 4 2 2 Select the AUTO test tool setup e Press to select MENU e Press till SCOPE is highlighted e Press to select SCOPE mode 3 Select the following test tool setup e Press to select menu SCOPE SETUP e Press to highlight Input 1 Reading e Press to go to Input 1 READING e Press S to highlight AC DCrms e Press to confirm L mark changes to e Press to highlight Input 1 Coupling e Press to select the Input 1 Coupling menu e Press to highlight DC Coupling e Press to confirm L mark changes to e Press to return to SCOPE 4 Set the 5500A to source a leveled sine wave of 1 2V peak to peak 50 kHz SCOPE output MODE levsine Adjust the amplitude of the sine wave to a reading of 424 mV 8 mV Set the 5500A to 20 MHz without changing the amplitude Observe the Input 1 trace and check the reading is 2 297 mV When you are finished set the 5500A to Standby 99 i Sy Note The lower transition point is tested in Section 4 5 9 4 5 3 Input 1 Frequency Measurement Accuracy Test Proceed as follows to test the Input 1 frequency measurement accuracy 1 Connect the test tool to the 5500A as for the previous test see Figure 4 2 2 Select the AUTO test tool setup e Press to select the MENU Press till SCOPE is highlighted Press to select SCOPE mode 4 7 43 Service Manua
23. 2 GPROT 4p 258 I grey input 215K 909K ag TRACEROT S OPP OPEM PROTGND TRACEROT 3 F13 1 1 R242 SCLK__SDAT C242 147K 4 Aone R246 100p 1 lt s 50PPM 33n 14 14 17 1 SCLK E I COMMON 4 17 1 I I PERCHE REFATT REF BUS 3 H8 2 ST8555 980722 ST8555 WMF Figure 9 2 Circuit Diagram 2 Channel 2 Circuit 9 8 Circuit Diagrams 9 2 Schematic Diagrams 13 1 2 3 4 5 6 7 8 9 10 1 12 14 1 F10 iden G NGUT R354 R356 LS LE T BC858 C C356 en VDDAA gt 411 lt V358 v359 IPROTECTION BC868 BC868 IE m 7 4 22n Be ELSE TRIGGER FILTER V353 R352 LLL een a ty p e C395 VCC3ATR RELAY 7V5 DE qu m i CONTROL V354 R353 gt 1 BZD27 2 C399 eS TRIGLEV2 R322 T 100n C322 E10 R321 115 8 3 R399 TRIGLEVI _ i 1 E10 14 01 APWM_BUS er JL 106 V174 2 E10 TRIG_B Ed C321 REFP R323 alal In el ou T REF BUS BCV65 TP321 105 Lt olol we 5 ueg N R326 R327 m 6 LI 1 562K 562K z e le o ol I l sees R173 2 em _ 348 K173 TP
24. 5 15 43 Service Manual e To exit and save the INVALID calibration data Press YES The test tool will show the message The test tool needs calibration Please contact your service center at power on The calibration date and number will not be updated A complete recalibration must be done e To exit and maintain the old calibration data Turn the test tool off No power adapter voltage WARNING No adapter present Calibration data will not be saved Exit maintenance mode e To save the calibration data Press NO The test tool returns to the maintenance mode Connect a correct power adapter and press to exit and save e To exit without saving the calibration data Press YES Chapter 6 Disassembling Title Page 6 1 Introduction teens ses 6 3 6 2 Disassembling 6 3 6 1 1 Required Tools een ee 6 3 6 2 2 Removing the Battery 6 3 6 2 3 Removing the Ball ran Ha smal 6 3 6 24 Opening the Test Tools ccna ettet nr te tenete 6 3 6 2 5 Removing the Main PCA Unit 6 5 6 2 6 Removing the Display 6 6 6 2 7 Removing the Keypad and Keypad Foil 6 6 6 3 Disassembling the Main PCA 6 6 6 4 Reassembling the Main PCA 6 8 6 5 Reassembling the Test Tool eee
25. When you are finished set the 5500A to 0 zero Volt and to Standby Performance Verification 4 5 Input 1 and Input 2 Tests in the SCOPE MODE Table 4 2 Volts DC Measurement Verification Points Sensitivity 5500A output DC Reading V DC Input 1 Input 2 Input 1 Input 2 mV or V div A or kA div 5 mV div 5 A div 15 mV 14 4 to 15 6 14 88 to 15 13 10 mvidiv 10 A div 30 mV 29 3 to 30 7 29 80 to 30 20 20 mV div 20 A div 60 mV 59 2 to 60 8 59 65 to 60 35 so 50 mvidiv 150 mV 148 7 to 151 3 148 7 to 151 3 100 mvidiv 100 300 mV 298 0 to 302 0 298 0 to 302 0 200 mv div 200 A div 500 mV 497 0 to 503 0 497 0 to 503 0 500 mV 497 0 to 503 0 497 0 to 503 0 O mV 0 5 to 0 5 0 5 to 0 5 500 mv div 500 A div 1 5V 1 487 to 1 513 1 487 to 1 513 1kAdiv 3V 2 980 to 3 020 2 980 to 3 020 2 V div 2 kA div 5V 4 970 to 5 030 4 970 to 5 030 5V 4 970 to 5 030 4 970 to 5 030 OV 0 005 to 0 005 0 005 to 0 005 5 Vidiv 5 kA div 15V 14 87 to 15 13 14 87 to 15 13 10 V div 10 kA div 30V 29 80 to 30 20 29 80 to 30 20 20 V div 20 kA div 50V 49 70 to 50 30 49 70 to 50 30 50V 49 70 to 50 30 49 70 to 50 30 oV 0 05 to 0 05 0 05 to 0 05 50 V div 50 kA div 150V 148 7 to 151 3 148 7 to 151 3 100 Vidiv 100 kA div 300V 298 0 to 302 0 298 0 to 302 0 The 500V and 1250V range will be tested in
26. e Press IL to select 1V d Press 20 to select a timebase of 10 ms d e Press to leave RANGE 1 Press to select TRIGGER e Using e set the trigger level to 2 divisions from the screen center For positive slope triggering the trigger level is the top of the trigger icon J Set the 5500A to source 0 4V DC e Press to select menu SCOPE SETUP e Press to highlight Time base Press 8 select the TIME BASE menu e Press to select SINGLE e Press to confirm L mark changes to e Press e to highlight Trigger slope e Press to select the TRIGGER SLOPE menu e Press to highlight positive trigger J e Press to confirm changes to e Press to return to SCOPE Verify that no trace is shown on the test tool display and that at the upper right corner of the display HOLD is not shown If the display shows HOLD then press dem Hold should disappear and the test tool is re armed for a trigger Increase the 5500A voltage slowly in 0 1V steps using the 5500A EDIT FIELD function until the test tool is triggered and the traces are shown Verify that the 5500A voltage is between 1 5V and 2 5V when the test tool is triggered To repeat the test set the 5500A to 4V and start at step 5 Set the 5500A to Standby Press to clear the display Select negative TRIGGER SLOPE e Press to select menu SCOPE SETUP e Press 2 to highlight Trigger slope e Press to select the TRIGGER SLOPE menu e Pres
27. the real time clock the on off key and the serial RS232 interface to turn the test tool on To monitor and control the battery charging process the P ASIC senses and buffers battery signals as temperature TEMP voltage BATVOLT current IBAT Via the SLOW ADC various analog signals can be measured by the D ASIC Involved signals are battery voltage BATVOLT battery type DENT battery temperature TEMP battery current BATCUR LCD temperature LCDTEMP from LCD unit and 3 test output pins of the C ASIC s and the T ASIC DACTEST The signals are used for control and test purposes The BACK LIGHT CONVERTER generates the 400V supply voltage for the LCD fluorescent back light lamp If the lamp is defective a 1 5 kV voltage can be present for 0 2 second maximum The brightness is controlled by the BACKBRIG signal supplied by the D ASIC Serial communication with a PC or printer is possible via the RS232 optically isolated interface The P ASIC buffers the received data line RXDA and supplies the buffered data RXD to the D ASIC The transmit data line TXD is directly connected to the D ASIC Circuit Descriptions 3 2 Block Diagram 3 2 5 Start up Sequence Operating Modes The test tool sequences through the next steps when power is applied see Figure 3 2 1 The P ASIC is directly powered by the battery or power adapter voltage VBAT Initially the Fly Back Converter is off and the D ASIC is powered by VBAT vi
28. 341 hi BEN BAT i 30VD EST L 0572 TP573 Y L563 1500 21 BATTERY PACK R570 MBRS340 mud REED ot De Mie NE 1 m T 100n 22n Tor I vv d 1 x503 T552 2 C561 4 C573 TP574 120 R penr 002 22 0512 C548 4 1564 1500 1 NC R512 400n MBRS340 ee ai 1 5 2K87 22n 5 B 68uH 1 B10 2 A10 1 TA C555 6 3 21 4 A13 C r8 1 T6 a C547 3900 2 C 6 _ V563 C562 L 574 TP576 I R509 150 1566 150 22n v551 MBRS340 S VAR mo gt BYD77A 7 kl Spurs a 2 10 gt m 0 gt R504 rso6 Rso7 L C509 a lt a Tu 4 C563 4 5576 TP577 i oV ESI PME 1E 1E au amp 2 om 21 V550 ETD15 MBRS1100 4p 150u 1567 4p 150u p MAX lt lt Sis V 47uH 30VD l 1 9 ooooocooooobooo o9 50 BYD77A gt 4C8 4C9 Em 1 R IDENT NTC SWITCH __ 3V3GAR z 2222222222222 gt gt 51 Ua 4 15 564 1 1 1 8 SESRSGSImSNSNASS SEN FT u VBAT Jonaz EE zo a vco 52 VcCOIL gt x 82228 5 6 5528 48 FLYBOOST 1 T oc 8205 R550 ia 8 SNUB 27 SNUB L D 1 C554 011 5 ae 348E ete eee TP504 0508 5 8 eof P tu 47n E gt gt Lcs551 1 0552 C550
29. 43 Service Manual como S Oy CUL 299 FLUKE 5500A CALIBRATOR ST8002 CGM Figure 5 8 Capacitance Gain Calibration Input Connections Set the 5500A to supply 250 mV DC Set the 5500A to operate OPR Press e to start the calibration Wait until the display shows Cap Low CL 0900 READY Press Ea to select calibration adjustment step Cap High CL 0910 IDLE Set the 5500A to supply 50 mV DC Press to start the calibration 10 Wait until the display shows Cap High CL 910 READY 11 Set the 5500A to Standby 12 Continue at Section 5 6 7 5 6 7 Capacitance Clamp amp Zero Proceed as follows to do the Capacitance Clamp Voltage amp Zero calibration 1 2 3 Press to select calibration adjustment step Cap Clamp CL 0940 1DLE Remove any input connection from the test tool open inputs Press to start the calibration The capacitance measurement clamp voltage Cap Clamp CL 0940 and the zero of the capacitance ranges Cap Zero CL 0950 Cap Zero CL 0953 will be calibrated now Wait until the display shows Cap Zero CL 0953 READY Continue at Section 5 6 8 5 6 8 Capacitance Gain Proceed as follows to do the Capacitance Gain calibration 1 2 3 Press to select calibration adjustment step Cap Gain CL 0960 IDLE Connect the test tool to the 5500A as shown in Figure 5 8 Set the 5500A to 500 nF Calibration Adjustment 5 7 Save Calibration Data and Exit
30. LM 10 50 100n 100n 4n7 5 gt er nes gt 49 FLYGATE TEMPHI 4 FLYGATE iP OWER ADAPTER iBATP 9 FLYSENSP 85 FLYSENSP GNE 2501 TP503 X501 BNX002 v501 504 VBAT 3 VBATMEAS Ren 554 R552 MBRS340 R501 MBRS340 udi R503 VBATSUDT van 26K1 10K 21 1 oE p D s VBATSUP C500 gt P VW 1 C505 i S i 2 3 a 503 L 0503 C504 54 VSENS NSENS E i Li 4 MBRS340 390 10u N501 28 1 180 R553 di OQ0256 9 a TREES CHAGATE 16 CHASENSN 14 EN CHASENSP 15 GHASENSP P ASIC VCHDRIVE 791 YCHDRIVE MavaA 58 R502 VADAPTER 20 VADAPTER vBarsup 17_NC PICO PTVCHA 18 pzvcHA No CHARGER L C507 2 vourh 51 VOUTHI 4 F Ve A 100n 13 a 21 A GNDC R558 Rsse R563 R564 zb 31K6 5 100K 100K VBATHIGH 7 ypaTHIGH gt T MAINVAL 413 IMAXCHA ce xg gt 4413 VADALOW 8 vapuow puu 9 lt a 229 R565 N OBS o i m agb x xG 55 pi ag 95s 100K BC848 C TP529 CHARCUR 53 CHARCURR 80 CHARCURR 2 222 99 88 S26 704 R513 R514 R516 be APWM BUS aaa 6 Raia gt mur Bess 26K1 3K16 23K7 05 IST ITS 125 T T 100n TP531 Mmm m so nm ojoje TP526 abe le FREQPS 4 13 555 8 5 E SEE B is 3 T
31. Pixel Test Pattern ur nennen 4 4 4 2 Test Tool Input 1 to 5500A Scope Output 500 4 6 4 3 Test Tool Input 2 to 5500A NORMAL 4 9 4 4 Test Tool Input 1 to 5500A Normal 4 13 4 5 Test Tool Input 1 2 to 5500A Normal Output eene 4 15 4 6 Test Tool Input 1 2 to 5500A Normal Output for gt 300V 4 22 4 7 Test Tool Input 1 to 5500A Normal Output 4 Wire 4 25 4 8 Test Tool Input 2 to 5500A NORMAL output eene 4 28 4 9 Test Tool Input 1 amp 2 5500A Normal Output eee 4 29 4 10 Bargraph Harmonics Volt ua 4 30 4 11 Bargraph nk niin nuke 4 30 4 12 Test Tool Input 1 to 5500A Normal Output seen 4 32 5 1 Version amp Calibration Screen einerseits 5 3 5 gt 2 Display Test Pattermu sr us ERREUR REN RR 5 7 5 3 Gain Calibration Input Connections eren 5 8 5 4 5500A Scope Output to Input 1 uueessnaneessssnnneesssnnnensennnnnnnennnnneneennnnannennannen 5 10 5 5 Volt Gain Calibration Input Connections lt 300V 5 11 5 6 Volt Gain Calibration Input Connections 500V 5 12 5 7 Four wire Ohms calibration
32. Press C to highlight DC Coupling e Press to confirm L mark changes to e Press 2 to select Input 2 READING Press E to select the Input 2 READING e Press to highlight ACrms e Press to confirm L mark changes to e Press to highlight Input 2 Coupling e Press to select the Input 2 COUPLING e Press to highlight DC Coupling e Press to confirm L mark changes to e Press to return to SCOPE Select the appropriate sensitivity for the test tool Press select RANGE 1 or RANGE 2 Press select RANGE 1 or Press select RANGE 2 Press S to select the ranges mentioned in the second part of table 4 7 Set the 5500A to source the appropriate AC voltage NORMAL output WAVE sine Performance Verification A 4 6 Ohms Continuity Capacitance 11 Observe the Input 1 and 2 main reading AC and check to see if it is within the range shown under the appropriate column 12 Continue through the test points of table 4 7 13 When you are finished set the 5500A to Standby Table 4 7 V DC and V AC High Voltage Verification Tests Sensitivity Time 5500A 5500A Reading DC Reading AC div output Frequency Vrms Input 1 Input 2 Input 1 amp 2 Input 1 Input 2 200V d 200kA d 10 ms d OV DC 0 5 to 0 5 10 ms d 500V DC 497 0 to 503 0 10 ms d 500V DC 497 0 to 503 0 s
33. and the test tool ON OFF status By pressing the ON OFF key a bit in the D ASIC indicating the test tool ON OFF status is toggled If no correct power adapter voltage is supplied MAINVAL is low and the test tool is not turned on the Off mode will be maintained If a correct power adapter voltage is supplied MAINVAL high or if the test tool is turned on the mask software starts up The mask software checks if valid instrument software is present If not e g no instrument firmware is loaded the mask software will 3 9 43 Service Manual 3 10 keep running and the test tool is not operative the test tool is in the Mask active state For test purposes the mask active mode can also be entered by pressing the and gt key when the test tool is turned on If valid software is present one of the three modes Operational Operational amp Charge or Charge will become active The Charger Converter circuit is active in the Operational amp Charge and in the Charge mode The Fly back converter is active in the Operational and in the Operational amp Charge mode Charger Converter See also Figure 3 3 The power adapter powers the Charge Control circuit in the P ASIC via an internal linear regulator The power adapter voltage is applied to R501 The Charger Converter circuit controls the battery charge current If a charged battery pack is installed VBAT is approximately 4 8V If no battery pack is installed VBAT is approximatel
34. contrast 7 Press to select maximum brightness calibration The display shows Contrast CL 0120 MANUAL 8 Press CAL The display shows a bright test pattern 9 Using e adjust the display to the maximum brightness at which the test pattern is only just visible 10 You can now e Exit if only the Contrast had to be adjusted Continue at Section 5 7 OR e Dothe complete calibration Press to select the next step Warming Up and continue at Section 5 5 Calibration Adjustment 5 5 Warming Up amp Pre Calibration Figure 5 2 Display Test Pattern 5 5 Warming Up amp Pre Calibration After entering the Warming Up amp Pre Calibration state the display shows WarmingUp CL 0200 IDLE valid or invalid You must always start the Warming Up amp Pre Calibration at Warming Up CL0200 Starting at another step will make the calibration invalid Proceed as follows 1 Remove all input connections from the test tool 2 Press to start the Warming Up amp Pre Calibration The display shows the calibration step in progress and its status The first step is WarmingUp CL0200 BUSY 00 29 59 The warming up period is counted down from 00 29 59 to 00 00 00 Then the other pre calibration steps are performed automatically The procedure takes about 60 minutes Wait until the display shows End Precal READY 4 Continue at Section 5 6 5 6 Final Calibration You must always start the Final Calib
35. e e Press amp to highlight DC Coupling Press to confirm L mark changes to e Press to return to SCOPE 4 Set the 5500A to source a sine wave to the first test point in Table 4 5 NORMAL output WAVE sine 5 Observe the Input 1 and Input 2 main reading and check to see if it is within the range shown under the appropriate column Continue through the test points of table 4 5 When you are finished set the 5500A to Standby Table 4 5 Volts Peak Measurement Verification Points 5500A output Vrms sine 5500A Frequency Reading 1 Reading 2 1 768 5V peak 1 kHz 4 50 to 5 50 4 50 to 5 50 4 5 12 Input 1 and 2 Phase Measurements Test Proceed as follows l 2 Connect the test tool to the 5500A as for the previous test see Figure 4 5 Select the AUTO test tool setup e Press to select MENU Press cz till SCOPE is highlighted e Press to select SCOPE mode Select DC coupling for Input 1 and 2 Reading Phase for Input 2 e Press to select menu SCOPE SETUP e Press to highlight Input 1 Coupling e Press to select the Input 1 Coupling menu 4 21 43 Service Manual amp e Press S to highlight DC Coupling e Press to confirm L mark changes to Press to select Input 2 READING d e Press to select the Input 2 READING e Press to highlight Phase e Press to confirm mark changes to Press d e Press to
36. gt 344 0 gt 344 0 500 0 mV 33 Hz gt 469 0 gt 469 0 500 0 mV 60 Hz gt 486 5 gt 486 0 4 5 11 Input 1 and 2 Volts Peak Measurements Test WARNING Dangerous voltages will be present on the calibration source and connecting cables during the following steps Ensure that the calibrator is in standby mode before making any connection between the calibrator and the test tool Proceed as follows to test the Volts Peak measurement function 1 2 Connect the test tool to the 5500A as for the previous test see Figure 4 5 Select the AUTO test tool setup e Press to select the MENU e Press till SCOPE is highlighted e Press to select SCOPE mode Select DC coupling amp Peak m m reading for Input 1 and 2 e Press to select menu SCOPE SETUP e Press to select Input 1 READING e Press to highlight Peak m m e Press to confirm L mark changes to e Press e to highlight Input 1 Coupling Performance Verification 4 5 Input 1 and Input 2 Tests in the SCOPE MODE e Press to select the Input 1 Coupling menu Press to highlight DC Coupling lt gt Press to confirm L mark changes to e Press select Input 2 READING e Press to select the Input 2 READING Press amp to highlight Peak m m lt gt e Press to confirm L mark changes to e Press c5 to highlight Input 2 Coupling e Press to select the Input 2 COUPLING
37. seated Install the shielding foil item 2 Remove the protection foil from the shielding foil by pulling it off in one rapid movement If you pull it off slowly the protection foil may crack Keep the shielding foil free of dust and grease Install the dust seal item 3 Install the display shielding bracket item 5 provided with the conductive foam strip item 4 Note Figure 6 4 shows how the shielding bracket with conductive foam strip the shielding foil the dust seal and the display assembly see step 7 are clamped in the top cover edge Install the keypad foil Align the positioning holes in the keypad foil to the positioning pins in the top case Clean the display glass with a moist soft cloth if necessary Install the display assembly Ensure that the display is secured correctly by the four alignment tabs in the top case It is secured correctly when it cannot be moved horizontally Install the keypad pressure plate Press the plate firmly and slide it under the four plastic keeper tabs in the top case Install the main PCA unit and re attach the cables Secure the flat cables in the connectors with the connector latches Twist the backlight wires to minimize interference voltages Insert the shielding flap below the main PCA shielding plate Put the bottom case and the top case together at the flat cable side and hinge the cases to each other This ensures the keypad foil flat cable is folded correctly
38. to the first calibration point in Table 5 2 Press to select the first step in Table 5 2 Press to start the calibration Wait until the display shows calibration status READY Press to select the next calibration step set the 5500A to the next calibration point and start the calibration Continue through all calibration points Table 5 2 When you are finished set the 5500A to Standby Continue at Section 5 6 2 Calibration Adjustment 5 6 Final Calibration Table 5 1 HF Gain Calibration Points Fast Cal step 5500A Setting Test Tool Input Signal Requirements 1 kHz no 50 Q 1 kHz t 100 ns flatness after rising edge lt 0 5 after 200 ns HFG amp Fl AB CL 0600 10 mV 20 mV HFG amp Fl AB CL 0601 25 mV 50 mV HFG amp Fl AB CL 0602 50 mV 100 mV HFG amp Fl AB CL 0603 100 mV 200 mV HFG amp Fl AB CL 0604 250 mV 500 mV HFG amp FI AB CL 0605 500 mV 1V HFG amp FI AB CL 0606 1V 2V HFG amp FI AB CL 0607 2 5 V 5V HFG amp FI A CL 0608 As the 5500A output is not terminated with 500 its output voltage is two times its set voltage After starting the first step in this table cell these steps are done automatically Table 5 2 HF Gain Calibration Points Slow Cal step 5500A Setting Test Tool Input Signal Requirements 1 kHz MODE wavegen 1 kHz square t lt 2 us WAVE squar
39. 1 Connect another LCD unit to see if the problem is caused by the LCD unit The unit is not repairable Defective display Check the LCD control signals on measure spots MS401 MS422 near to X453 Use a 10 1 probe with ground lead on the probe connected to the metal screening of the UUT Notice that MS407 is missing a MS422 LCDONOFF for 3 3V b MS420 DATACLKO for 120 ns pulses MS414 415 0 1 for 250 ns pulses 43 Service Manual MS417 418 LCDAT2 3 for 250 ns pulses MS412 LINECLK for 120 ns pulses 16 kHz MS411 FRAME for 250 ns pules 66Hz 5409 for a z625Hz square wave c MS406 5VA for 5V MS405 3V3D for 3 3V MS401 30VD for 30V from Fly Back Converter d MS404 REFPWMI for 3 3V Bad contrast a Check MS403 CONTRAST see Figure below T s0 mV 0 8 15 ms If not correct check FRAME signal V401 for 0 3V 250 ns pulses 66Hz check PWM circuit 7 5 14 check V401 V403 b Check MS408 LCDTEMPI for 1 6V at room temperature to SLOW ADC If not correct check R591 in SLOW ADC part Defective backlight a Turn the test tool on and monitor the voltage on T600 pin 3 or pin 5 fora 8 Vpp 66 kHz half rectified sine wave If a half rectified sine wave with an increasing amplitude is only seen for about 0 2 second directly after power on then the secondary circuit is defective Install a new LCD unit If this does not cure the problem
40. 100n R307 T 22p TP304 mE 10K mm R339 SMPCLK R393 1 lt VEEATR C9 57 m C317 1p C311 011 2u R312 R311 C312 v301 V302 TP338 B stke 100n toon Paon 4 4041 5 016 E11 R342 TRIGQUAL Bien be 4 GAINPWM C391 Er c10 D8 C342 100n 10u VEECML E9 2x V301 OR V302 is place 1 1 1 a 10K See Ch 10 Rev 3 H C398 C397 C396 L C394 C393 po T p T 100n ler cul REF_BUS 0 010 1 24 DTRG_BUS 2 010 2 3 14 05 4 7 4 86 4J1 ST8556 1 00 01 21 ST8556 1 WMF Figure 9 3 Circuit Diagram 3 Trigger Circuit 9 9 43 Service Manual
41. 12492 R307 RESISTOR CHIP RC12H 196 10K 4822 117 10833 R308 RESISTOR CHIP RC12G 196 21K5 5322 117 12492 R309 RESISTOR CHIP RC12H 196 10K 4822 117 10833 R310 RESISTOR CHIP RC12H 196 100K 4822 117 10837 R311 RESISTOR CHIP RC12H 196 31K6 5322 117 12466 R312 RESISTOR CHIP RC12H 196 34K8 5322 117 12467 R321 RESISTOR CHIP RC12H 1 681K 5322 117 12458 R322 RESISTOR CHIP RC12H 1 681K 5322 117 12458 R323 RESISTOR CHIP RC12H 1 34K8 5322 117 12467 R324 RESISTOR CHIP RC12H 1 215K 5322 117 12457 R326 RESISTOR CHIP RC12H 1 562K 5322 117 12468 R327 RESISTOR CHIP RC12H 1 562K 5322 117 12468 R331 RESISTOR CHIP RC12H 1 10K 4822 117 10833 R333 RESISTOR CHIP RC12H 196 10K 4822 117 10833 R337 RESISTOR CHIP RC12H 196 10K 4822 117 10833 R339 RESISTOR CHIP RC12H 196 10K 4822 117 10833 List of Replaceable Parts 8 5 Main PCA Parts 8 Reference Designator Description Ordering Code R342 R352 R353 R354 R356 R369 R371 R375 R376 R377 R378 R381 R385 R393 R394 R395 R396 R397 R398 R399 R403 R404 R405 R406 R407 R408 R409 R410 R416 R417 R431 R432 R433 RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RES
42. 3s1nd INAS OR dic m o c 9 TANNVHO 1vas x198 9739099 tls3lovd 7 soul gt 8 LAdNI l _ 89000 n bi 8 138340 2ISV aNNVHO 802 41 Old Liv IF T WOO 1vas Pi Old 153102 0 MORE 3SN3S 892000 gt V LAdNI 13530 215 VI39240 qaNNVHO Y SOd To 21 Y V 13NNVHO ST7965 EPS Figure 3 1 Fluke 43 Block Diagram 3 2 Circuit Descriptions 3 3 1 Introduction 3 1 Introduction Section 3 2 describes the functional block diagram shown in Figure 3 1 It provides a quick way to get familiar with the test tool basic build up Section 3 3 describes the principle of operation of the test tool functions in detail on the basis of the circuit diagrams shown in Figures 9 1 to 9 5 For all measurements input signals are applied to the shielded input banana jackets Traces and readings are derived from the same input signal samples 3 2 Block Diagram In the block diagram Figure 3 1 the test tool is divided in five main blocks Each block represents a functional part build up around an Application Specific Integrated Circuit ASIC A detailed circuit diagram of each block is shown in Section 9 Table 3 1 provides an overview of the blocks in which the test tool is broken down the main block function the ASIC name and th
43. 5322 122 33082 C119 CER CAP 1 500V 0 25PF 4 7PF 5322 122 33082 C121 CER CAP 1 500V 2 33PF 4822 122 31202 C122 CER CAP 1 500V 0 25PF 4 7PF 5322 122 33082 C123 CER 1 500V 0 25PF 4 7PF 5322 122 33082 C124 CER CAP 1 500V 2 33PF 4822 122 31202 C131 CER CHIP CAP 63V 0 25PF 0 82PF 5322 126 10786 8 7 43 Service Manual 8 8 Reference Description Ordering Code Designator C132 CER CHIP CAP 63V 0 25PF 4 7PF 5322 122 32287 C133 CER CHIP CAP 63V 5 47PF 5322 122 32452 C134 CER CHIP CAP 63V 596 470PF 5322 122 32268 C136 CER CHIP CAP 63V 1096 4 7NF 5322 126 10223 C142 CHIPCAP NPO 0805 5 1NF 5322 126 10511 C145 CHIPCAP NPO 0805 5 1NF 5322 126 10511 C146 CHIPCAP NPO 0805 5 1NF 5322 126 10511 C148 CHIPCAP X7R 0805 10 10NF 5322 122 34098 C152 CERCAP X7R 0805 1096 15NF 4822 122 33128 C153 CHIPCAP X7B 0805 10 22NF 5322 122 32654 C156 CHIPCAP NPO 0805 5 1NF 5322 126 10511 C158 CER CHIP CAP 63V 5 150PF 5322 122 33538 C159 CHIPCAP NPO 0805 596 100PF 5322 122 32531 C161 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C162 CER CHIP CAP 63V 0 25PF 4 7PF 5322 122 32287 C181 ALCAP SANYO 10V 20 22UF 5322 124 11837 C182 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C183 ALCAP SANYO 10V 20 22UF 5322 124 11837 C184 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C186 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C187 ALCAP SANYO 10V 20 22UF 5322 124 11837 C188 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C189 CER CHIPCAP 25V 2096 100NF 5322
44. 60 5 43 Service Manual 4 32 4 12 Transients Proceed as follows to test the TRANSIENTS function 1 Connect the test tool to the 5500A as show in Figure 4 12 FLUKE 5500A CALIBRATOR PM9091 001 1 5m PM9092 001 0 5m PM9081 ST8s86 ST8586 WMF Figure 4 12 Test Tool Input 1 to 5500A Normal Output 2 Press 3 4 Press to highlight TRANSIENTS Press to select the TRANSIENTS mode VOLTAGE CHANGE vwill be highlighted continue with 1 2 522 UD Press s Press to select 20 Press to confirm L mark changes to Press to select START Set the 5500A to 20V 60Hz NORMAL output WAVE sine Press to start the test No transients should be captured Set the 5500A to 22 5V Now transients should be captured After 40 transients maximum the 40th transient will be visible When you are finished set the 5500A to Standby Chapter 5 Calibration Adjustment Title Page 5 1 General eee eee eee eee eei dedi edicit 5 3 S LT Introduction een ee et ee I eerie 5 3 5 1 2 Calibration number and date ee 5 3 5 L3 hee here eren eer enn 5 4 5 2 Equipment Required For Calibration eee 5 4 5 3 Starting Calibration Adjustment eene 5 4 5 4 Contrast Calibration Adjustment esee eee 5 6 5 5 Warming Up amp Pre Calibration
45. A9 R173 D3 3 12 C262 2 E9 C463 B4 4 F6 L182 D3 1 A9 182 C3 1 A7 C282 A2 2 7 C464 B4 4 G6 L183 D3 1 B9 R184 C2 1 A9 C284 A2 2 C466 B3 4 l4 L281 2 A9 R186 D2 1 B7 C286 B2 2 B7 C471 C4 4 Bll L282 B3 2 A9 R188 C3 1 B7 C288 A2 2 B7 C472 C4 4 Bll L283 B3 2 B9 R189 D2 1 B9 C289 B2 2 B8 C473 C4 4 Bll L481 C4 4 16 R209 B2 2 D4 C290 B2 2 C7 C474 B4 4 B12 L562 C5 5 B14 R210 A2 2 C291 A2 2 C8 C475 D4 4 C14 L563 C5 5 B14 211 A2 2 A3 C301 C3 3 D6 C476 D4 4 E16 L567 C5 5 C14 212 A2 2 A4 C306 D3 3 F7 C478 B5 4 G16 R213 A2 2 A4 C311 C3 3 G7 C479 C4 4 F4 N531 B4 5 J6 R214 A2 2 A5 C312 C3 3 68 C480 C4 4 F5 N600 D5 5 1 R216 A2 2 C3 9 5 43 Service Manual 9 6 R217 R218 R219 R220 R221 R225 R231 R232 R233 R234 R236 R237 R238 R239 R240 R241 R242 R243 R246 R251 R252 R253 R254 R255 R256 R257 R258 R259 R260 R261 R271 R282 R284 R286 R288 R289 R301 R302 R303 R305 R307 R308 R309 R310 touuUmumUuwuuw mngguHugogdgUgoommummuummmmuuigcgoQoUwoou D D ONIS SPIE SO OY Oo 4 99 ZITATE IE ONE s fen de oce e ua R311 R326 R331 R337 R342 R352 R353 R354 R356 R369 R371 R375 R376 R377 R385 R390 R393 R394
46. C407 L C408 I 17 LCDATS 1 LCDAT3 n DEBUG vig T 100n 100n F 100n 18 LCDAT2 ae mE C465 L4 GND Aia 2 100 ROM_D15 45 paid AS 3 ROM A13 ROM A19 1TO 14 ECDATA ROM D07 44 12 4 ROM A12 ILCD 13 LCDRTO LCDATO ROM Di4 43 pata AM 5 ROM_ATI MODULE T TLINEGLK pe 42 D ROMAE J401 6 2 22 i l ROM DI3 4 Pris ROM A09 B VDDA VDDD VDDO po 14 ADC A DO u FRAME FRAME ROM DOS 4 Das A8 E A08 ADC A 5 18 ADC A D1 B11 R470 E DQ12 A19 DEBUG1 E MIN 01 16 ADC 02 B iM Eu M VD rog 5 816 ROM DO4 38 pe 10 REFADCT 8 02 ADC_A_D3 7 E VD ara Dem Ne M ROMWRITE DEBUG2 VRT D3 ADC A D4 I 6 5 3 B16 y 5VA Lear2 Loss L C474 L C476 vec 5 ROMRST lt D401 D4 TE stave Be 1 616 3V3D 100n 100n 100n 100n 100n RP 4p7 C402 9 VRM ps 19 ADC_A D5 I 5 816 5 16 ROM_D 36 100n pe 20 ADC A D6 22 4 4 REFPWMT BEFEWMN ROM_D03 35 vpp 13 VD REFADCB _10 vrg TDA 8792 p 21 ADC A D7 SONTRAST CONTRAST ROM ROM 212 4 1400 lt R488 Ez E DQ2 RY L C403 7 REF 24 SMPCLK i 11300 _ 5 616 L 15 518 30 0 L 6475 ROM D09 32 pos 18 16 ROM_A18 MURS REF BUS T 100n a ee LCD BUS ROM ADDR DATA 100n ROM D0i 31 17 17 BHE VSSA2 VSSA1 STBY NC VS
47. C555 ELCAP 10V 20 390UF 5322 124 11844 C561 ALCAP SANYO 6 3V 20 150UF 5322 124 11841 C562 ALCAP SANYO 6 3V 2096 150UF 5322 124 11841 C563 ALCAP SANYO 6 3 20 150UF 5322 124 11841 C564 ALCAP SANYO 35V 20 47UF 5322 124 11842 C565 ALCAP SANYO 6 3 20 150UF 5322 124 11841 C567 ALCAP SANYO 6 3 20 150UF 5322 124 11841 C568 ALCAP SANYO 6 3V 20 150UF 5322 124 11841 C572 ALCAP SANYO 6 3V 20 150UF 5322 124 11841 C573 ALCAP SANYO 6 3 20 150UF 5322 124 11841 C574 ALCAP SANYO 6 3V 20 150UF 5322 124 11841 C576 ALCAP SANYO 6 3V 20 150UF 5322 124 11841 C583 CER CHIPCAP 25V 20 100NF 5322 126 13638 C591 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C592 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C593 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C594 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C602 CER CHIP CAP 25V 2096 47NF 5322 126 14045 C603 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C604 CER CAP X5R 1206 10 1UF 5322 126 14089 C605 NPO 0805 5 1NF 5322 126 10511 C606 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C607 CHIPCAP X7R 0805 1096 10NF 5322 122 34098 C608 MKT FILM CAP 63V 10 100NF 5322 121 42386 C609 CER CAP 2KV 5 33PF 5322 126 14047 C610 CER CAP X5R 1206 1096 1UF 5322 126 14089 D401 LOW VOLT ADC TDA8792M C2 R1 5322 209 14837 0451 LOW ADC TDA8792M C2 R1 5322 209 14837 0471 D ASIC MOT0002 5322 209 13139 0474 8M FEPROM AM29LV800B 120EC 5322 209 15199 8 13 43 Service Manual 8 14
48. D2 1 D5 C158 C2 1 C7 C394 3 H4 C512 D5 5 C5 R132 D2 1 D5 C159 C2 1 F7 C396 3 H4 C529 A4 5 H8 R133 D2 1 D5 C161 D2 1 E10 C397 3 H4 C531 C4 5 K5 R134 D2 1 5 C162 1 F8 C398 B3 3 C534 A4 5 G6 R136 D2 1 E5 C182 C2 1 A7 C400 B4 4 C547 5 5 C7 R137 1 E3 C184 C2 1 B8 C401 C3 4 B2 C548 5 5 7 R138 D1 1 E3 C186 D2 1 B7 C402 C3 4 B2 C549 A4 5 C7 R139 1 E4 C188 C2 1 B7 C403 4 C2 C550 A5 5 D13 R140 1 E4 C189 D2 1 C8 C404 D4 4 62 C551 5 5 D11 R141 C2 1 C190 C2 1 C8 C407 4 4 C552 5 5 D11 R142 D2 1 F4 C191 C2 1 C8 C408 C3 4 A5 C554 D5 5 D4 R143 D2 1 E4 C199 D3 1 C1 C400 4 H2 C583 A4 5 J8 R144 D2 1 F5 C207 B2 2 D4 C416 4 4 C591 B5 5 K3 R146 D2 1 F5 C231 B2 2 C5 C431 B4 4 El C592 B5 5 K3 R151 D2 1 C8 C232 B2 2 D5 C432 B4 4 F2 C593 B5 5 K3 R152 D2 1 C8 C233 B2 2 D5 C433 4 E2 C594 C4 5 K4 R153 D2 1 D8 C234 B2 2 D5 C434 B4 4 F2 C602 D5 5 R154 D2 1 D8 C236 B2 2 E5 C436 C4 4 F3 C603 D4 5 10 R155 D2 1 D7 C242 A2 2 F4 C438 C4 4 F3 C604 D5 5 R156 C3 1 08 C245 B2 2 E4 C439 C3 4 E3 C605 D5 5 R157 C3 1 D8 C248 2 2 C441 4 C606 C5 5 K10 R158 C3 1 E7 C252 B2 2 C6 C442 C4 4 C607 C5 5 12 R159 D3 1 F7 C253 B2 2 D6 C451 4 J1 C610 C5 5 K15 R160 C2 LD7 C256 A3 2 D8 C452 4 2 R161 C3 1 D8 C258 B2 2 C7 C453 B3 4 72 D531 B4 5 15 R165 1 E8 C259 B2 2 7 C457 4 15 R171 D3 3 D12 C261 B2 2 D9 458 4 15 L181 C3 1
49. D6 2 D6 N301 N501 R2 R101 R102 R103 R104 R105 R106 R108 R172 R201 R202 R203 R204 R205 R206 R208 R306 R312 R321 R322 R323 R324 R327 R333 R339 R378 R381 R391 R392 T552 T600 401 V402 V603 X452 X453 X501 X503 X601 2501 B3 D5 3 D9 5 E5 1 E2 2 El 1 E2 1 E3 1 E4 1 E4 1 B3 1 F2 1 B3 1 C2 2 E2 2 E2 2 E4 2 E4 2 A2 2 E2 2 B2 3 F6 3 G6 3 C6 3 B6 3 C8 3 C8 3 C7 3 Ell 3 611 3 3 3 All 3 B11 5 C12 5 J14 4 G1 4 G2 5 15 4 J8 4 B7 5 El 5 C3 5 J15 D3 5 E2 Circuit Diagrams 9 9 2 Schematic Diagrams Table 9 2 Parts Location Main PCA Side 2 B401 B4 4 J9 C33 3 Ell C481 B4 4 J11 R109 D2 1 5 C332 C4 3 E10 C482 B4 4 111 R110 C2 1 A4 C107 D2 1 D5 C342 C3 3 61 C483 B4 4 110 R111 C2 1 A4 C131 D2 1 D5 C344 C3 3 F9 C484 B4 4 110 12 C2 1 A4 C132 D2 1 D5 C356 C3 3 10 C485 B4 4 J9 R113 C2 1 A5 C133 D2 1 D5 C357 C3 3 B10 C486 4 4 J9 R114 C2 1 A5 C134 D2 1 D5 C376 B3 3 F5 C487 B4 4 18 R116 C2 1 C3 C136 D2 LES C377 3 F4 C488 4 17 R117 C2 1 B3 C142 C2 1 F4 C378 3 F4 C500 A4 5 E2 R118 C2 1 D4 C145 D2 1 F5 C379 3 F4 C505 A4 5 F4 R119 1 C4 C148 C1 LE2 C381 3 C506 A5 5 D6 R120 C2 1 B4 C152 D2 1 C7 C382 B3 3 F4 C507 5 5 F6 R121 C2 1 D5 C153 D2 1 D7 C391 A3 3 G2 C509 A5 5 5 R125 C2 1 C4 C156 C3 1 08 C393 B3 3 H5 C511 D5 5 4 R131
50. FREQPS The MAINVAL signal pin91 is supplied by the P ASIC and indicates the presence of the power adapter voltage high present The FREQPS signal pin 93 is also supplied by the P ASIC It is the same signal that controls the Fly Back Converter control voltage FLYGATE The D ASIC measures the frequency in order to detect if the Fly Back Converter is running within specified frequency limits D ASIC Clocks 25 crystal B403 controls the D ASIC system clock For the real time clock counting the time and date an additional 32 768 kHz crystal B401 is provided When the test tool is turned on a 16MHz microprocessor clock derived from B402 becomes active Buzzer The Buzzer is directly driven by a 4 kHz square wave from the D ASIC pin 101 via FET V522 If the test tool is on the 30VD supply from the Fly Back converter is present and the buzzer sounds loudly If the 30VD is not present the buzzer sounds weak e g when the Mask Active mode is entered Chapter 4 Performance Verification Title Page Introducton wa erleiden 4 3 4 2 Equipment Required For 4 3 4 3 HoWw 4 3 4 4 Display and Backlight 4 4 4 5 Input 1 and Input 2 Tests in the SCOPE 4 5 4 5 1 Input 1 Trigger Sensitiv
51. N501 defective 7 Check N501 pin 51 for lt 2 5V nominal value 1 65V If not correct check R558 and connections to N501 check IREF see step 6 8 Check N501 pin 57 IMAXFLY for z250 mV If not correct check R559 and connections to N501 check IREF see step 6 7 5 3 Slow ADC Check the following signals 1 BATCUR N501 pin 77 must be 1 63 6 7 x IBATP Volt If not correct replace N501 Measure on X503 pin 3 501 pin 9 IBATP senses the battery current 2 BATVOLT 501 pin 78 must be 0 67 x VBAT 3 27 Volt If not correct replace N501 Measure VBAT on TP504 N501 pin 3 VBAT senses battery the voltage 3 BATTEMP N501 pin 79 must be TEMP IBATP Volt If not correct replace N501 43 Service Manual Measure TEMP on N501 pin 5 X503 pin 6 TEMP senses the battery temperature Measure IBATP on X503 pin 3 N501 pin 9 IBATP senses the battery current 4 3V3SADC must be 3 3V supplied by N501 pin 65 If not correct check if the 3V3SADC line is shorted to ground If it is not then replace N501 5 SELMUXn TP591 TP592 TP593 supplied by the D ASIC must show LF pulses 0V to 3 3V 0 5 3 seconds period 6 Check TP536 TP537 and TP534 for signals shown below typical examples measured signals may have different pulse amplitude and repetition rate TP536 if at a fixed level replace D531 TP537 if not correct trace signal to PWM circuit on the Digital part TP
52. Press to select menu SCOPE SETUP e Press to select Input 1 READING Press to highlight DC e Press to confirm L mark changes to e Press to highlight Input 1 Coupling e Press to select the Input 1 Coupling menu Press to highlight DC Coupling e Press to confirm L mark changes to e Press to select Input 2 READING e Press to select the Input 2 READING Press to highlight DC e Press to confirm L mark changes to e Press to highlight Input 2 Coupling e Press to select the Input 2 COUPLING e Press e to highlight DC Coupling e Press to confirm O mark changes to e Press to return to SCOPE Select the appropriate sensitivity for the test tool 4 23 43 Service Manual 4 24 10 Press select RANGE 1 or RANGE 2 e Press to select RANGE 1 or e Press to select RANGE 2 e Press S to select the ranges mentioned in the table Set the 5500A to source the appropriate DC voltage NORMAL output WAVE sine Observe the Input 1 and 2 main reading V DC and check to see if it is within the range shown under the appropriate column Continue through the test points of table 4 7 Select DC coupling and ACrms reading for Input 1 and 2 e Press to select menu SCOPE SETUP Press 35 to select Input 1 READING e Press to highlight ACrms e Press to confirm L mark changes to e Press 2 to highlight Input 1 Coupling e Press to select the Input 1 Coupling menu
53. R395 R396 R398 R403 R404 R405 R406 R407 R408 R409 R410 R416 R417 R431 R432 R433 R434 R436 R438 R439 R441 R442 R453 R454 R466 R467 3 G6 3 C6 3 C7 3 F11 3 G11 3 B3 3 B3 3 A2 3 A2 3 C11 3 E3 3 E2 3 F3 3 F3 3 F2 3 B10 3 G3 3 G3 3 G2 3 G3 3 G3 4 A3 4 All 4 G2 4 G2 4 G2 4 G2 4 F3 4 G3 4 A12 4 All 4 D3 gt 2 4 tr Eri Eri pri i p 95 55 95 Go AARRRARARRRAA R469 R470 R471 R472 R473 R474 R478 R479 R480 R481 R482 R483 R491 R495 R496 R497 R501 R502 R503 R504 R506 R507 R508 R509 R512 R513 R514 R516 R524 R527 R528 R529 R531 R534 R535 R550 R551 R552 R553 R554 R558 R559 R563 R564 4 J12 4 B12 4 H7 gt P P p gt gt 999558 4 E16 4 H14 4 115 4 G15 R565 R570 R580 R591 R600 R602 R603 R604 171 172 174 V301 V353 V354 V356 V358 V359 V395 V403 V482 V495 V501 V503 V504 V506 V550 V551 V554 V555 V561 V562 V563 V564 V565 V566 V567 V569 V600 V601 V602 V604 605 5 F14 5 C12 5 A8 5 K4 5 K15 5 K13 5 K15 5 K15 3 D13 3 E13 3 C13 3 G8 3 B2 3 B2 3 A3 3 B2 3 B2 3 11 4 62 4 D15 4 H15 5 E3 5 E5 5 E4 5 E4 5 C10 5 5 D12 5 D12 5 C13 5 C13 5 C13 5 C13 5 F15 5 F15 5 A13 5 A9 5 J12 5 J13 5 J13 5 K15 5 J1
54. a logic circuit in the D ASIC that is active even when the test tool is turned off Via the PROBE A and PROBE B lines connected to the Input 1 and Input 2 banana shielding the D ASIC can detect if a probe is connected The D ASIC sends commands to the C ASICs and T ASIC via the SCLK and SDAT serial control lines e g to select the required trigger source Various I O lines are provided e g to control the BUZZER and the Slow ADC via the SADC bus 3 2 4 Power Circuit 3 6 The test tool can be powered via the power adapter or by the battery pack If the power adapter is connected it powers the test tool and charges the battery via the CHARGER CONVERTER circuit The battery charge current is sensed by sense resistor Rs signal IBAT It is controlled by changing the output current of the CHARGER CONVERTER control signal CHAGATE If no power adapter is connected the battery pack supplies the VBAT voltage The VBAT voltage powers the P ASIC and is also supplied to the FLY BACK CONVERTER switched mode power supply If the test tool is turned on the FLY BACK CONVERTER generates supply voltages for various test tool circuits The 3V3GAR supply voltage powers the D ASIC RAM and ROM If the test tool is turned off the battery supplies the 3V3GAR voltage via transistor V569 This transistor is controlled by the P ASIC So when the test tool is turned off the D ASIC can still control the battery charging process CHARCURR signal
55. bet PM9081 9093 PM9091 001 1 5m PM9092 001 0 5m Figure 4 5 Test Tool Input 1 2 to 5500A Normal Output ST8001 CGM 2 Select the AUTO test tool setup e Press to select the MENU e Press till SCOPE is highlighted e Press to select SCOPE mode 4 15 43 Service Manual 4 16 Select DC coupling amp reading for Input 1 and 2 e Press to select menu SCOPE SETUP Press 35 to select Input 1 READING Press to highlight DC Press to confirm L mark changes to e Press to highlight Input 1 Coupling e Press to select the Input 1 Coupling menu Press C to highlight DC Coupling Press to confirm L mark changes to e Press to select Input 2 READING Press E to select the Input 2 READING Press C to highlight DC e Press to confirm L mark changes to e Press to highlight Input 2 Coupling Press to select the Input 2 COUPLING e Press to highlight DC Coupling e Press to confirm O mark changes to Press to return to SCOPE Set the 5500A to source the appropriate DC voltage from table 4 2 Observe the main reading and check to see if it is within the range shown under the appropriate column Select the appropriate sensitivity for the test tool Press to select RANGE 1 or RANGE 2 e Press to select RANGE 1 or press to select RANGE 2 e Press e to select the ranges mentioned in the table Continue through the test points
56. check the resistance between T600 pin 10 and 11 for 300Q replace V603 V605 b Check 7600 pin 3 and pin 5 for a 8 Vpp 66 kHz half rectified sine wave If it is present on only pin 3 or pin 5 then replace V601 c Check TP601 and TP602 for a 7Vpp 66 kHz square wave If not correct then check TP604 TLON for 3V3 If TLON is correct then replace N600 d Check replace V600 V602 Backlight brightness control not correct brightness increases if a power adapter is connected Check the TP605 BACKBRIG supplied by D ASIC D471 for a 25 kHz 3 3 V pulse signal The duty cycle of the pulses controls the back light brightness The backlight brightness increases with an increasing length of the high pulse Check V604 R604 7 5 2 Fly Back Converter 1 Check the voltages on TP572 5V TP573 3 3V TP574 3 3V TP576 3 3V TP577 30V on the POWER part a Ifoneor more voltages are correct then check the rectifier diodes V561 V564 and coils L562 L567 of the incorrect voltage b If none of the voltages is correct then the fly back converter does not run correctly continue at step 2 Check TP504 VBATT for gt 4 8V Corrective Maintenance 7 7 5 Miscellaneous Functions 3 Check TP552 FLYGATE for a square wave voltage of at least some volts for a correct Fly Back Converter 50 100 kHz 10 Vpp a Ifa square wave is present on TP552 may be not the correct value then 1 Check the voltag
57. correct then replace N501 c Check N501 pin 12 NETVALID for 2 6V If not correct proceed as indicated in 7 3 step 6 d Check the Power ON OFF function see 7 5 13 Check X tal signals on TP473 32 kHz and TP476 25 MHz if not correct check connections replace X tals replace D471 The 16 MHz clock on TP474 runs only if the test tool software runs If the 16 MHz clock is present then continue at 7 4 3 7 4 2 Test Tool Software Does not Run QE QNO 2 20 Turn the test tool OFF and ON again Check D471 pin 59 row1 for a 100 kHz square wave If no 100 kHz is not present but you heard a weak beep the test tool software runs but the buzzer circuit does not function correctly Go to 7 5 10 to check the buzzer circuit then continue at 7 4 3 to see why the test tool cannot be operated If a 100 kHz square wave is present the MASK software is running Continue at 3 Check TP487 ROMRST for gt 3V Load new software to see if the loaded software is corrupted See 7 6 Do the RAM test see 7 5 12 Check for bad soldered address data lines and IC pins Replace FLASH ROM D474 and RAM D475 7 4 3 Software Runs Test Tool not Operative 1 2 3 Check the Display and Backlight function see 7 5 1 Check the Fly Back Converter see 7 5 2 Check the Keyboard function see 7 5 3 7 5 Miscellaneous Functions 7 5 1 Display and Back Light Warning The voltage for the LCD back light fluorescent lamp is gt 400V
58. feet EEE max 3g aa max 30 g Electromagnetic Compatibility EMC EN 50081 1 1992 EN55022 EN60555 2 50082 2 1992 IEC1000 4 2 3 4 5 See also 2 1 to 2 3 Enclosure Protection esses IP51 ref IEC529 2 9 43 Service Manual 2 7 Electromagnetic Immunity The Fluke 43 including standard accessories conforms with the EEC directive 89 336 for EMC immunity as defined by IEC1000 4 3 with the addition of the following tables Disturbance with test leads TL24 or Current Clamp 80i 500s e Volts amps hertz e Resistance Capacitance e Power e Harmonics Table 2 1 No Visible Disturbance No visible disturbance E 3V m E 10V m Frequency 10 kHz 27 MHz Frequency 27 MHz 1 GHz no visible disturbance Disturbance with test leads TL24 in scope mode V ac dc True RMS Table 2 2 Disturbance lt 1 96 Disturbance less than 1 96 E 3 V m E 10 V m of full scale Frequency 10 kHz 27 MHz 2 V div 500 V div 10 V div 500 V div Frequency 27 MHz 200 MHz 500 mV div 2 Vidiv 500 V div Frequency 200 MHz 1 GHz 5 mV div 500 V div no visible disturbance Table 2 3 Disturbance 10 96 Disturbance less than 10 E 3 V m E 10 V m of
59. firmly sideways 6 2 4 Opening the Test Tool Referring to Figure 6 1 use the following procedure to open the test tool 1 Remove the battery pack see Section 6 2 2 2 Unscrew the four M3 Torx screws item 12 that secure the bottom case to the top case 3 Hold the test tool upside down and lift off the bottom case 4x 9 N ST8562 EPS 43 Service Manual Figure 6 1 Fluke 43 Main Assembly 6 4 Disassembling 6 2 Disassembling Procedures 6 2 5 Removing the Main PCA Unit Referring to Figure 6 1 use the following procedure to remove the main PCA unit 1 Open the test tool see Section 6 2 4 2 Disconnect the LCD flex cable and the keypad foil flat cable see Figure 6 2 Unlock the cables by lifting the connector latch The latch remains attached to the connector body The keypad foil is provided with a shielding flap that covers the LCD flat cable The end of the flap is put under the main PCA unit shielding plate and can be easily pulled out Caution To avoid contaminating the flex cable contacts with oil from your fingers do not touch the contacts or wear gloves Contaminated contacts may not cause immediate instrument failure in controlled environments Failures typically show up when contaminated units are operated in humid areas 3 Unplug the backlight cable Warning If the battery pack or the powe
60. for a burst of pulses pulses from 2V to 3 3V The length of the burst and the pulses depends on the selected baud rate 7 5 6 Input Channel 1 and 2 Voltage Measurements 1 Reset the test tool press and 2 Select the Scope Roll mode for both input channels Press highlight SCOPE and press Press SETUP highlight INPUT 2 Coupling OFF press highlight LIDC press highlight Time Base NORMAL press highlight LIROLL press press BACK 3 Apply a 1 kHz square wave to Input 1 and Input 2 and change the test tool sensitivity V div to make the complete square wave visible 4 Check TP154 ADC A and TP254 ADC B for the signal shown below Input positive Input zero vp v gv vene 170 3 to 1 4V 150 mV div Input negative A trace amplitude of 1 division results in an 150 mV voltage on TP154 255 Moving the trace position with a zero input signal results in a TP154 254 voltage of about 0 3V bottom to 1 4V top If the voltages are not correct do stwmf 6 to 16 if these stwmf are correct then replace the C ASIC If the voltages are correct the error is most probably caused by the ADC or ADC control continue at step 16 5 Check TP156 TRIGA and TP256 TRIGB The TRIGA and TRIGB signals must be the inverted input signals with an amplitude of 50 mV per division trace amplitude Moving the trace position with a zero input signal results in a TP156
61. on and OV at power off supplied by D471 If not correct do the 7 4 1 tests first Check MS444 ONKEY D471 for 3V when pressing the ON key the signal must below for 100 150 ms 7 5 14 PWM Circuit 1 Check the PWM control signals generated by D471 The signals must show 0 3V pulses with variable duty cycle and a frequency of 100 25 or 6 KHz a CHARCURD CONTR D 100 kHz b SADCLEV POS A D BACKBRIG POS B D TRIGLEV2D TRIGLEV1D HO RNDM 25 kHz c OFFSETA D OFFSETB D 6 kHz If not correct check a TP306 REFPWM2 for 3 3V used for CHARCURD SADCLEV b TP304 REFPWM 1 for 3 3V used for other PWM signals If TP306 and TP304 are correct D471 may be defective 7 5 15 Randomize Circuit 1 2 Check TP483 for 0 3V pulses 25 kHz variable duty cycle Check TP482 for 3 0V pulses variable frequency and duty cycle 7 15 Chapter 8 List of Replaceable Parts Title Page 8 3 8 2 How to Obtain aee eene etie 8 3 8 3 Final Assembly 01 8 4 PCA Unit Parts eR Aen SURE eS 8 6 8 5 Main PCA 8 7 8 6 Accessory Replacement a s a u N nennen 8 23 8 1 List of Replaceable Parts 8 8 1 Introduction 8 1 Introduction This chapter contains an illustrated list of replaceable
62. see 7 Adjusting trigger level Press e Press to highlight TRIGGER e Press to adjust Performance Verification 4 5 Input 1 and Input 2 Tests in the SCOPE MODE 8 Select timebase of 10 us d e Press to select RANGE e Press 20 to select 10 us d 9 Set the 5500A to source a 20 kHz leveled sine wave of 62 5 mV peak to peak half a divisions on the display 10 Verify that the signal is well triggered if necessary adjust the trigger level see 7 11 When you are finished set the 5500A to Standby 4 5 7 Input 1 Trigger Level and Trigger Slope Test Proceed as follows 1 Connect the test tool to the 5500A as shown in Figure 4 4 FLUKE 5500A CALIBRATOR PM9091 001 1 5m PM9092 001 0 5m PM9081 5 578586 Figure 4 4 Test Tool Input 1 to 5500A Normal Output 2 Select the AUTO test tool setup e Press to select the MENU e Press e till SCOPE is highlighted e Press to select SCOPE mode 3 Select the following test tool setup e Press to select menu SCOPE SETUP e Press to select Input 1 READING e Press to highlight AC DCrms e Press to confirm L mark changes to e Press e to highlight Input 1 Coupling e Press to select the Input 1 Coupling menu e Press to highlight DC Coupling e Press to confirm L mark changes to Press to return to SCOPE 4 13 43 Service Manual 4 14 10 Press to select Input 1 RANGE
63. used for horizontal move functionality Vertical Voltage ranges oo e RR eia 50 0 mV div to 500 V div Trace accuracy zssssassunsasssesagesegensuegsn ues 1 2 pixels Bandwidth input 1 voltage excluding test leads or 22 11 DC to 20 MHz 3 dB with test leads 24 DC to 1 MHz 3 dB with 10 1 probe PM8918 optional DC to 20 MHz 3 dB with shielded test leads STL120 optional DC to 12 5 MHz 3 dB DC to 20 MHz 6 dB Lower transition point ac couplin 10 Hz 3 dB Bandwidth input 2 current with Banana to BNC DC to 15 KHz Lower transition point ac coupline 10 Hz 3 dB Scope readings The accuracy of all scope readings is valid from 18 C to 28 C with relative humidity up to 90 for a period of one year after calibration Add 0 1 x the specified accuracy for each C below 18 C or above 28 C More than one waveform period must be visible on the screen Wid Ce Arge c mb 0 5 96 5 counts V ac and V ac dc True RMS input 1 DC to 60 eee LL as 1 10 counts GO Hz to 20 KH Zee 2 5 15 counts 92 AGS 5 20 counts 1 MHZ to uyana manu mus 10 25 counts
64. 0 mV the ground protect circuit in the C ASIC makes the DACTEST output pin 24 high The DACTEST line output level is read by the D ASIC via the slow ADC See 3 3 2 Power The test tool will give a ground error warning Because of ground loops a LF interference voltage can arise across PTC resistor R106 mainly mains interference when the power adapter is connected To eliminate this LF interference voltage it is buffered also via input GPROT pin 2 and subtracted from the input signal Pin 43 PROTGND is the ground reference of the input buffer CALSIG input pin 36 The reference circuit on the TRIGGER part supplies an accurate 1 23 V DC voltage to the CALSIG input pin 36 via R141 This voltage is used for internal calibration of the gain and the capacitance measurement threshold levels A reference current Ical is supplied by the T ASIC via R144 for calibration of the resistance and capacitance measurement function For ICAL see also Section 3 3 3 POS input pin 1 PWM circuit on the Digital part provides an adjustable voltage 0 to 3 3 V to the POS input via R151 The voltage level is used to move the input signal trace on the LCD The REFN line provides a negative bias voltage via R152 to create the correct voltage swing level on the C ASIC POS input OFFSET input pin 44 The PWM circuit on the Digital part supplies an adjustable voltage 0 to 3 3 V to the OFFSET input via R153 The voltage level is used to compensat
65. 00 5 4000 397 1 to 402 9 4 3 971 to 4 029 40 39 71 to 40 29 400 397 1 to 402 9 4MO 3 971 to 4 029 30 MO 29 77 to 30 23 4 6 2 Diode Test Function Test Proceed as follows to test the Diode Test function 1 2 p Gm Connect the test tool to the 5500 as for the previous test see Figure 4 7 Select OHMS CONTINUITY CAPACITANCE e Press to select the main MENU Press to highlight OHMS CONTINUITY CAPACITANCE e Press to select the item Press to select DIODE Set the 5500A to 1 Use the 5500A 2 wire mode Observe the main reading and check to see if it is within 0 425 and 0 575 V Set the 5500A to 1V DC Observe the main reading and check to see if it is within 0 975 and 1 025V When you are finished set the 5500A to Standby Performance Verification A 4 6 Ohms Continuity Capacitance 4 6 3 Continuity Function Test Proceed as follows 1 2 AR dm te Connect the test tool to the 55004 as for the previous test see Figure 4 7 Select OHMS CONTINUITY CAPACITANCE e Press MENU to select the main MENU e Press 3 to highlight OHMS CONTINUITY CAPACITANCE e Press to select the item Press select CONTINUITY Set the 5500A to 250 Use the 5500A 2 wire mode Listen to hear that the beeper sounds continuously Set the 5500A to 350 Listen to hear that the beeper does not sound When you are finis
66. 00 BSN20 C591 L C592 C593 C594 Deis 606 TP604 R602 0610 5K11 FIN K 100n 100n 100n 100n L C531 pes 10K BACKBRIG 14 08 T 221 5 a TP605 Lo M ST8559 1 APWM_BUS r 1 R605 amp R606 not for PCB versions lt 3 a 4 01 OPTICAL PORT 000124 an 4 ST8559 1 WMF Figure 9 6 Circuit Diagram 5 Power Circuit 9 12 Circuit Diagrams 9 9 2 Schematic Diagrams 5 R306 P499 TP496 a 97 e 48 rp332 9 esc TP331 TPASS 2 9 151 TP303 JE LE e 18 14 476 TP534 TP593 TP474 e 5 ve TP401 P536 TP537 TP255 TP451 12 B402 B403 C317 TP473 e t IE 1723 x 526 x TP561 C504 Bil C254 C528 TI 09 0977 TP521 LI rz P306 8 09 17504 e 4022 245 0443 A ell pu 2 2 258 TP495 496 TP 572 _ 603 TP152 156 TP487 TP310 331 332 336 338 TP573 TP431 432 436 437 438 482 483 486 TP600 605 C TP252 TP151 TP251 254 255 256 TP253 TP528 551 552 574 576 592 593 TP301 304 308 309 311 321 322 TP401 451 471 474 476 TP433 TP 526 534 536 537 561 591 TP259 TP521 TP306 307 TP503 522 527 531 571 TP501 502 504 529 577 ST8561 WMF Figure 9 7 Main PCA side 1 PCB Version 3 9
67. 1 Remove the display assembly see Section 6 2 6 2 Remove the keypad foil Notice the four keypad foil positioning pins in the top case 3 Remove the keypad Caution To avoid contaminating the keypad contacts and the keypad foil contacts with oil from your fingers do not touch the contacts or wear gloves Contaminated contacts may not cause immediate instrument failure in controlled environments Failures typically show up when contaminated units are operated in humid areas 6 3 Disassembling the Main PCA Unit Referring to Figure 6 3 use the following procedure disassemble the main PCA unit 1 Remove the M2 5 Torx screws items 1 and 8 that secure the main shielding plate item 7 to the main PCA shielding box item 5 Pull the shielding plate away from the input banana jacks as you rotate the far end upwards and then remove it Remove the power input insulator item 3 and the LED guide piece item 6 Remove the M2 5 Torx screws item 2 that secure the PCA to the shielding box Lift the PCA at the screw end approximately 2 cm and pull it away from the input banana jack holes to remove it Note Each input banana jacket is provided with a rubber sealing ring Input 1 2 item 9 COM input item 10 Ensure that the rings are present when reassembling the main PCA unit 6 3 Disassembling the Main PCA Unit Disassembling Caution To avoid contaminating the main PCA with oil from your fingers do not touc
68. 100NF 5322 126 13638 C287 ALCAP SANYO 10V 20 22UF 5322 124 11837 C288 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C289 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C290 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C291 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C292 CC 10NF 2961210 NPO 50V 5322 126 14483 C293 CC 10NF 2961210 NPO 50V 5322 126 14483 C294 CC 100 NF 20 0805 X7R 25V 5322 126 14484 C295 CC 0 56 PF 4596 0805 NPO 50V 5322 126 14485 C296 CC 100 NF 20 0805 X7R 25V 5322 126 14484 C297 CC 100 NF 20 0805 X7R 25V 5322 126 14484 C298 CC 10NF 2961210 NPO 50V 5322 126 14483 C301 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C303 CER CHIPCAP 25V 20 100NF 5322 126 13638 8 9 43 Service Manual 8 10 Reference Description Ordering Code Designator C306 CER CHIPCAP 25V 20 100NF 5322 126 13638 C311 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C312 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C313 ALCAP SANYO 25V 20 10UF 5322 124 11838 C314 SANYO 25V 20 10UF 5322 124 11838 C317 ALCAP NICHICON 6 3V 20 22UF 4822 124 80675 C321 CER CHIP CAP 63V 10 1 5NF 5322 122 31865 C322 CER CHIP CAP 63V 1096 1 5NF 5322 122 31865 C331 CER CHIP CAP 63V 0 25PF 4 7PF 5322 122 32287 C332 CER CHIP CAP 63V 5 22PF 5322 122 32658 C333 CER CHIP CAP 63V 0 25PF 1PF 5322 122 32447 C337 CER CHIP CAP 63V 0 25PF 4 7PF 5322 122 32287 C339 CER CHIP CAP 63V 0 25 1PF 5322 122 32447 C342 CER CHIP CAP 63V 0 25PF 1PF 5322 122 32447 C344 CER CH
69. 117 11151 List of Replaceable Parts 8 5 Main PCA Parts 8 Reference Description Ordering Code Designator R506 RES 01 1206 5 4822 117 11151 R507 RES 01 1206 5 4822 117 11151 R508 RESISTOR CHIP RC12H 196 10K 4822 117 10833 R509 RESISTOR CHIP RC12H 196 46E4 5322 117 12463 R512 RESISTOR CHIP RC12H 196 2K87 5322 117 12608 R513 RESISTOR CHIP RC12H 196 26K1 5322 117 12448 R514 RESISTOR CHIP RC12H 1 3K16 5322 117 12465 R516 RESISTOR CHIP RC12H 1 23K7 5322 117 12481 R524 RESISTOR CHIP RC12H 1 100E 4822 117 11373 R527 RESISTOR CHIP RC12H 1 147E 5322 117 12482 R528 RESISTOR CHIP RC12H 1 34K8 5322 117 12467 R529 RESISTOR CHIP RC12H 1 261K 5322 117 12617 R531 RESISTOR CHIP RC12H 1 21K5 5322 117 12477 R532 RESISTOR CHIP RC12H 1 100E 4822 117 11373 R534 RESISTOR CHIP RC12H 1 1K47 5322 117 12479 R535 RESISTOR CHIP RC12H 1 51K1 5322 117 12462 R550 RESISTOR CHIP RC12H 1 348E 5322 117 12456 R551 RESISTOR CHIP LRCO1 5 OE1 5322 117 11759 R552 RESISTOR CHIP RC12H 196 10K 4822 117 10833 R553 RESISTOR CHIP RC12H 1 4K22 5322 117 12476 R554 RESISTOR CHIP RC12H 1 26K1 5322 117 12448 R555 RESISTOR CHIP RC12H 1 10K 4822 117 10833 R558 RESISTOR CHIP RC12H 1 31K6 5322 117 12466 R559 RESISTOR CHIP RC12H 1 5K11 5322 117 12469 R561 RESISTOR CHIP RC12H 1 100E 4822 117 11373 R562 RESISTOR CHIP RC12H 1 100E 4822 117 11373 R563 RESISTOR CHIP RC12H 1 100K 4822 117 10837 R564 RESISTOR CHIP RC12H 1 100K 4822 1
70. 126 13638 C190 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C191 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C199 CER CHIP CAP 63V 596 470PF 5322 122 32268 C201 MKC FILM CAP 630V 10 22NF 5322 121 10616 C202 SUPPR CAPACITOR 0 1 UF 5322 121 10527 C204 CER CAP 3 15KV 5 120PF 5322 126 14046 C206 CER CAP 1KV 20 80 4 7NF 5322 126 13825 C207 CER CHIP CAP 63V 596 470PF 5322 122 32268 C211 CER CAP 1 500V 0 25PF 4 7PF 5322 122 33082 C231 CER CHIP CAP 63V 0 25PF 0 68PF 4822 126 12342 List of Replaceable Parts 8 5 Main PCA Parts 8 Reference Description Ordering Code Designator C232 CER CHIP CAP 63V 0 25PF 4 7PF 5322 122 32287 C233 CER CHIP CAP 63V 5 47PF 5322 122 32452 C234 CER CHIP CAP 63V 596 470PF 5322 122 32268 C236 CER CHIP CAP 63V 10 4 7NF 5322 126 10223 C242 CHIPCAP NPO 0805 5 1NF 5322 126 10511 C246 CC 33NF 10 0805 X7R 50V 5322 126 14486 C248 CHIPCAP X7R 0805 10 10NF 5322 122 34098 C252 CERCAP X7R 0805 1096 15NF 4822 122 33128 C253 CHIPCAP X7B 0805 10 22NF 5322 122 32654 C256 CHIPCAP NPO 0805 5 1NF 5322 126 10511 C258 CER CHIP CAP 63V 5 150PF 5322 122 33538 C259 CHIPCAP NPO 0805 596 100PF 5322 122 32531 C261 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C262 CER CHIP CAP 63V 0 25PF 4 7PF 5322 122 32287 C281 ALCAP SANYO 10V 20 22UF 5322 124 11837 C282 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C283 ALCAP SANYO 10V 20 22UF 5322 124 11837 C284 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C286 CER CHIPCAP 25V 2096
71. 13 43 Service Manual A cm men
72. 17 10837 R565 RESISTOR CHIP RC12H 1 100K 4822 117 10837 R570 RESISTOR CHIP RC12H 1 100K 4822 117 10837 R580 RESISTOR CHIP LRCO1 5 OE33 5322 117 11725 R591 RESISTOR CHIP RC12H 196 2K15 5322 117 12452 R600 RESISTOR CHIP RC12H 196 5K11 5322 117 12469 8 21 43 Service Manual 8 22 Reference Description Ordering Code Designator R602 RESISTOR CHIP RC12H 1 10K 4822 117 10833 R603 RESISTOR CHIP RC12H 1 100K 4822 117 10837 R604 RESISTOR CHIP RC12H 1 1K 4822 117 11154 R605 SMD RES 10K 1 TC50 0805 4022 301 22071 R606 SMD RES 6K19 1 TC50 0805 4022 301 22021 T552 BACKLIGHT TRANSFORMER PT73458 5322 146 10447 T600 SMD TRANSFORMER 678XN 1081 5322 146 10634 V171 PNP NPN TR PAIR BCV65 5322 130 10762 V172 PNP NPN TR PAIR BCV65 5322 130 10762 V174 PNP NPN TR PAIR BCV65 5322 130 10762 V200 LF TRANSISTOR BC848C PEL 5322 130 42136 V201 LF TRANSISTOR BC848C PEL 5322 130 42136 V301 PREC VOLT REF LM4041CIM 1 2 2X4 PIN DIL PACK 5322 209 14852 V302 PREC VOLT REF LM4041CIM3X 1 2 4022 304 10571 V353 VOLT REG DIODE BZD27 C7V5 PEL 4822 130 82522 V354 VOLT REG DIODE BZD27 C7V5 PEL 4822 130 82522 V356 LF TRANSISTOR BC858C 4822 130 42513 V358 LF TRANSISTOR BC868 PEL 5322 130 61569 V359 LF TRANSISTOR BC868 PEL 5322 130 61569 V395 LF TRANSISTOR BC848C 5322 130 42136 401 N CHAN FET 5 20 PEL 5322 130 63289 402 P CHAN MOSFET BSS84 PEL 5322 130 10669 V403 N CHAN FET BSN20 PE
73. 2 05 1 2 5 10 20 50 100 FREQUENCY MHz ST8571 Figure 2 1 Max Input Voltage vs Frequency A Maximum floating voltage From any terminal to ground O10 AON Zien e RR RE RR ee 600 Vrms 2 3 Function Specifications The accuracy of all measurements is within of reading number of counts from 18 C to 28 C For all specifications probe specifications must be added 2 3 1 Electrical functions Specifications are valid for signals with a fundamental between 40 and 70 Hz Minim m input voltage eee DW eee te RR REIR malen 4 V peak peak Minimum input 10 A peak peak 1 mV A Input bandwidth DC to 15 KHz unless specified otherwise Volts Amps Hertz Readings terree isn Vrms ac dc Arms ac dc Hz Voltage ranges auto 5 V 50 V 500 V 1250 V minimutn Step oe eee 1 mV 10 mV 100 mV 1 V 1 10 counts Current Tan Ses auto 50 00 A to 500 0 kA 1250 kA minimum 10 mA 0 1 A 1 A 100 A 1 kA 1 10 counts PEQUENCY TAN SC oce t cmt 10 0 Hz to 15 0 kHz 20 010 5555855555 0 5 2 counts 0 1 Hz 1 Hz 10 Hz 100 Hz Power REALNO Watt VA VAR DPF Hz Watt VA VAR ranges auto 250 W to 250 MW 625 MW 1 56 GW when selected total 2 96 6 counts
74. 22 117 12456 5322 117 12461 4822 117 11373 5322 117 12462 5322 117 12485 4822 117 11373 5322 117 12456 5322 116 40274 5322 117 12456 5322 117 12464 5322 117 12464 5322 117 12464 5322 117 12464 5322 117 12464 4822 050 24874 4822 050 24874 4822 117 11948 List of Replaceable Parts 8 5 Main PCA Parts 8 Reference Description Ordering Code Designator R204 RESISTOR CHIP RC12H 1 26K1 5322 117 12448 R206 PTC THERM DISC 600V 300 500E 5322 116 40274 R209 RESISTOR CHIP RC12H 1 2K15 5322 117 12452 R211 RESISTOR CHIP RC11 2 10M 4822 051 20106 R212 RESISTOR CHIP RC11 2 10M 4822 051 20106 R213 RESISTOR CHIP RC11 2 10M 4822 051 20106 R214 RESISTOR CHIP RC11 2 10M 4822 051 20106 R231 RESISTOR CHIP RC12G 1 1 5322 117 12484 R232 RESISTOR CHIP RC12G 1 100K 5322 117 12485 R233 RESISTOR CHIP RC12G 1 10K 5322 117 12486 R234 RESISTOR CHIP RC12G 1 1K 5322 117 12487 R236 RESISTOR CHIP RC 02G 1 100E 4822 051 51001 R237 SMDRES 261K 1 TC100 1206 5322 117 13485 R238 SMDRES 261K 1 TC100 1206 5322 117 13485 R239 SMDRES 261K 1 TC100 1206 5322 117 13485 R240 SMDRES 215K 1 TC100 1206 5322 117 13486 R241 RESISTOR CHIP RC12G 1 215K 5322 117 12488 R242 RESISTOR CHIP RC12G 1 147K 5322 117 12489 R243 RESISTOR CHIP RC12G 1 909K 5322 117 12491 R246 SMDRES 1M 1 TC50 0805 5322 117 13487 R251 RESISTOR CHIP RC12H 196 100K 5322 117 12485 R252 RESISTOR CHIP RC12H 196 100K 5322 117 12485 R253 RESISTOR CHIP RC12H 196 681K 53
75. 22 117 12458 R254 RESISTOR CHIP RC12H 196 681K 5322 117 12458 R255 RESISTOR CHIP RC12H 196 178K 5322 117 12459 R256 RESISTOR CHIP RC12G 196 100K 5322 117 12485 R257 RESISTOR CHIP RC12H 196 287E 5322 117 12461 R258 RESISTOR CHIP RC12H 196 287E 5322 117 12461 R259 RESISTOR CHIP RC12H 196 100E 4822 117 11373 R260 RESISTOR CHIP RC12H 196 51K1 5322 117 12462 R261 RESISTOR CHIP RC12G 196 100K 5322 117 12485 R271 RESISTOR CHIP RC12H 196 348E 5322 117 12456 R282 RESISTOR CHIP RC12H 196 10E 5322 117 12464 R284 RESISTOR CHIP RC12H 196 10E 5322 117 12464 8 17 43 Service Manual 8 18 Reference Description Ordering Code Designator R286 RESISTOR CHIP RC12H 1 10E 5322 117 12464 R288 RESISTOR CHIP RC12H 196 10E 5322 117 12464 R289 RESISTOR CHIP RC12H 196 10E 5322 117 12464 R290 SMD RES 56K2 196 TC100 1206 5322 117 13488 R291 SMD RES 56K2 196 TC100 1206 5322 117 13488 R292 SMD RES 56K2 196 TC100 1206 5322 117 13488 R293 SMD RES 46K4 196 TC100 1206 5322 117 13489 R294 SMD RES 100K 196 TC50 0805 5322 117 13491 R295 SMD RES 215K 196 TC50 0805 5322 117 13492 R296 SMD RES 1M 196 TC50 0805 5322 117 13487 R297 SMD RES 10E 196 TC100 0805 5322 117 13493 R298 SMD RES 10E 196 TC100 0805 5322 117 13493 R301 RESISTOR CHIP RC12H 196 3K16 5322 117 12465 R302 RESISTOR CHIP RC12H 196 10K 4822 117 10833 R303 RESISTOR CHIP RC12H 196 10K 4822 117 10833 R305 RESISTOR CHIP RC12H 196 10K 4822 117 10833 R306 RESISTOR CHIP RC12G 196 21K5 5322 117
76. 245 0482 3 version 3 The part number of the PCA has not changed Old and new PCA versions are fully compatible See Chapter 9 for the drawings of the old and the new version PCB The following changes have been made e In the Backlight Converter circuit R605 and R606 are added to provide a more reliable start up of the backlight See the Power Circuit diagram figure 9 6 e A delay circuit for the ROM Write Enable end edge has been added D480 and related parts between D471 pin 14 and ROM D474 pin 11 The delay is required to make the circuit suitable for FlashROMs that need a large delay between the write data and the write enable end See the Digital Circuit diagram figure 9 4 e Another shape for the 4041 reference diode is use The shape was 2x4 pin DIL mounted on the Main PCA side 2 reference designator V301 The new shape is a transistor shape mounted on the Main PCA side 1 the reference designator becomes V302 The reason is the availability of the diode versions The PCB layout still has the possibility to mount V301 in place of V302 10 3
77. 256 voltage of about 0 4V bottom to 0 4V top If the voltages are not correct do stwmf 6 to 16 if these stwmf are correct then replace the C ASIC 6 Check the supply voltages 3V3A 3 3V 3V3A 3 3V and 5VA 5V If not correct trace to the Fly Back converter on the Power part 7 11 43 Service Manual 10 11 12 13 0 8V 0 8V 14 15 16 17 18 19 7 5 7 Oh 1 Check TP151 POS A and TP251 POS B for about 1 1V trace at mid screen 0 4V trace at top of screen 1 8V trace at bottom of screen If not correct check the PWM circuit in the Digital Circuit Check TP152 OFFSET A and TP252 OFFSET B for about 1 1V Check TP303 REFN for 1 2V Check TP153 DACTESTA and TP253 DACTESTB for If TP153 is 1 7V the C ASIC is in the reset state 200 mV div fixed sensitivity check SDAT and SCLK see step 15 Check 155 MIDADCA and TP255 MIDADCB for about 0 9V Select the Scope Normal mode for both input channels Press highlight SCOPE and press press SETUP highlight INPUT 2 Coupling XXX press highlight ODC press highlight Time Base XXX press highlight ONORMAL press press BACK Select a time base setting of 20 ms d Check TP258 TRACEROT supplied by T ASIC N301 for the signals shown below typical example at 20 ms div e 100 ms 5 ms If not correct check TP432 RAMPCLK for 200 ns pulse
78. 3 4 TRIGLEV1 voltage is used for triggering on a negative slope of the Input 1 2 voltage The TRIGLEV 2 voltage is used for triggering on a positive slope of the Input 1 2 voltage As the C ASIC inverts the Input 1 2 voltage the TRIGA TRIGB slopes on the T ASIC input are inverted From the selected trigger source signal and the used trigger level voltages the ALLTRIG and the DUALTRIG trigger signal are derived The select logic selects which one will be used by the synchronization delta T circuit to generate the final trigger There are three possibilities Circuit Descriptions 3 3 3 Detailed Circuit Descriptions 1 Single shot triggering The DUALTRIG signal is supplied to the synchronization delta T circuit The trigger levels TRIGLEV 1 and TRIGLEV2 are set just above and below the DC level of the input signal A trigger is generated when the signal crosses the trigger levels A trigger will occur on both a positive or a negative glitch This mode ensures triggering when the polarity of an expected glitch is not known 2 Qualified triggering The ALLTRIG signal is supplied to T ASIC output pin 35 which is connected to the D ASIC input pin 21 The D ASIC derives a qualified trigger signal TRIGQUAL from ALLTRIG e g on each 10th ALLTRIG pulse a TRIGQUAL pulse is given The TRIGQUAL is supplied to the synchronize delta T circuit via the select logic 3 Normal triggering The ALLTRIG signal is supplied to the synchronization d
79. 301 REFN 4022 2 555 lt 2 6 3V3A TP310 oOo0pggulbz ooupzu OrrEropu SFOs TR o9 8 near F veesatr 217 VCC3ATR Uer 7 GNDDISTR BIAS 18 BIAS BCV65 GAINREFN GRINBEEN onma 24 R301 REFN ACDCA 222 ACDCA zu N p Are u VCCEREF nm 23 a E i VCC5REF VCCSDT 5 i PREFERENCE VCCaREF 301 vccapr 25 VCCSDT Es R171 GAIN VEEREF 2 VEEDT G5 848E K171 10 1 R305 E GNDREF T ASIC GNDDT 28 2 10K c301 GAINADCT 000257 TRACEROT 3 100n GAINADCB GNDRDAC 49 GAINADCT GAINPWM VCC3RAMP VEC3RAMP F5 172 REFADCT GNDRAMP BCV65 TP302 REFADCB VEERAMP VEERAMP C5 REFPWM GNDCML ES eae N REFADCB DACTESTT 29 RSTRAMP 45 poc S 1 4 14 E I C332 i C331 R271 2 4 7 K271 R375 VGCSREE C314 u 5 50856 as I 22p 1 348E nde I zu 5 816 SMA 08 100 n 09 53 35 R333 TP332 pti L se ER 100n R302 R310 TP303 DAT 10K 100K e 417 m m TRIGDT SCLK R376 417 gt gt D11 REFN ALLTRIG TRACEROT _ 1 E10 R385 R377 VCC3DT 2 E10 5 016 gt 8V3A 4 gt D11 R306 ml C306 9 R378 VCCSRAMP D11 21K5 m 100n a DEM GAINREFN D8 TP306 R381 VCC3CML E9 R308 ZIKE REFPWM2 5 37 HOLDOFF C381 C379 C378 C377 L376 50PPM REFP C344 pi 100n T 100n T4000 T 1008
80. 322 122 32658 C485 CER CHIP CAP 63V 5 27PF 5322 122 31946 C486 CER CHIP CAP 63V 5 27PF 5322 122 31946 C487 CHIPCAP NPO 0805 5 100PF 5322 122 32531 C488 CHIPCAP NPO 0805 5 100PF 5322 122 32531 C489 CHIPCAP X7B 0805 10 22NF 5322 122 32654 C500 1UF CERCAP Y5V 1206 10 5322 126 14086 C501 ELCAP 25V 20 180UF 5322 124 11843 C502 ALCAP NICHICON 25V 20 10UF 5322 124 11839 C503 ELCAP 10V 20 390UF 5322 124 11844 C504 ALCAP NICHICON 16V 10UF 5322 124 41979 C505 CER CHIPCAP 25V 20 100NF 5322 126 13638 C506 CER CHIP CAP 25V 20 47NF 5322 126 14045 C507 CER CHIPCAP 25V 20 100NF 5322 126 13638 C509 CER CAP X5R 1206 10 1UF 5322 126 14089 C511 CER CHIPCAP 25V 20 100NF 5322 126 13638 C512 CER CHIPCAP 25V 20 100NF 5322 126 13638 C528 ALCAP NICHICON 6 3V 20 22UF 4822 124 80675 C529 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C531 CHIPCAP X7B 0805 10 22NF 5322 122 32654 C532 CHIPCAP X7B 0805 10 22NF 5322 122 32654 C534 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C547 CHIPCAP X7B 0805 10 22NF 5322 122 32654 C548 CHIPCAP X7B 0805 10 22NF 5322 122 32654 C549 CHIPCAP X7B 0805 10 22NF 5322 122 32654 C550 CER CHIP CAP 63V 10 4 7NF 5322 126 10223 C551 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C552 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C553 CER CHIP CAP 63V 5 150PF 5322 122 33538 List of Replaceable Parts 8 5 Main PCA Parts 8 Reference Description Ordering Code Designator C554 CER CAP X5R 1206 1096 1UF 5322 126 14089
81. 38 C433 CHIPCAP X7B 0805 10 22NF 5322 122 32654 C434 CHIPCAP X7B 0805 10 22NF 5322 122 32654 C436 CER CAP X5R 1206 1096 1UF 5322 126 14089 C438 CER CHIP CAP 63V 10 4 7NF 5322 126 10223 C439 CER CHIP CAP 63V 10 4 7NF 5322 126 10223 C441 CHIPCAP X7B 0805 10 22NF 5322 122 32654 C442 CHIPCAP X7B 0805 10 22NF 5322 122 32654 C451 CER CHIP CAP 63V 0 25PF 4 7PF 5322 122 32287 C452 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C453 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C457 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C458 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C463 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C464 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C465 ALCAP NICHICON 16V 10UF 5322 124 41979 C466 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C470 CER CHIP CAP 470 PF 596 0805 NPO 50V 4022 301 60371 C471 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C472 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C473 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C474 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C475 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C476 CER CHIPCAP 100NF 1096 0805 NPO 50V 4022 301 61331 C479 CER CHIP CAP 63V 5 22PF 5322 122 32658 43 Service Manual 8 12 Reference Description Ordering Code Designator C480 CER CHIPCAP 25V 20 100NF 5322 126 13638 C481 CER CHIP CAP 63V 5 22PF 5322 122 32658 C482 CER CHIP CAP 63V 5 22PF 5322 122 32658 C483 CER CHIP CAP 63V 5 22PF 5322 122 32658 C484 CER CHIP CAP 63V 5 22PF 5
82. 4 5 1 Input 1 Trigger Sensitivity Test 4 6 4 5 2 Input 1 Frequency Response Upper Transition Point Test 4 7 4 5 3 Input 1 Frequency Measurement Accuracy Test 4 7 4 5 4 Input 2 Frequency Measurement Accuracy Test 4 9 4 5 5 Input 2 Trigger Level and Trigger Slope Test 4 10 4 5 6 Input 2 Trigger sensitivity Test 4 12 4 5 7 Input 1 Trigger Level and Trigger Slope 4 13 4 5 8 Input 1 and 2 DC Voltage Accuracy Test 4 15 4 5 9 Input 1 and 2 AC Voltage Accuracy 4 17 4 5 10 Input 1 and 2 AC Input Coupling Test 4 19 4 5 11 Input 1 and 2 Volts Peak Measurements Test 4 20 4 5 12 Input 1 and 2 Phase Measurements Test 4 21 4 5 13 Input 1 and 2 High Voltage amp DC Accuracy Test 4 22 4 6 Ohms Continuity Capacitance l 4 25 4 6 1 Resistance Measurements 4 25 4 6 2 Diode Test Function Test 2 eee 4 26 4 6 3 Continuity Function Testi nne eee 4 26 4 6 4 Capacitance Measurements 4 27 4 7 Inrush e 4 28 4 8 Sags 69 1 nne eee etes 4 29 4 9 Harmonics oo ette tete 4 30 4 10 VOLT AMPS HB
83. 5 Circuit Diagrams 9 9 2 Schematic Diagrams N101 1181 R182 A GENOUT BAT 10 pcBiAs ru 33V3A 5 C16 C182 cte R110 R111 R112 R113 R114 11 100n 22u 2K15 10M 10M 10M 10M C11 c112 L182 4p7 R105 4p7 T VATTN3V3 NUN UA 5 018 STE c1o5 io R120 I 10M SWHFO A 416 c113 C114 C116 GNDHFO Fox 4 7 R108 4p R117 4p 4 HF1 VAMPN3V3 B UE 2 ie mo 1 SWHFA K173 c119 1 GNDHF1 5 4 4 R125 K173 HF2 2 3 C104 120p C199 10p 470 I 122 C123 SWHF2 APWM BUS d 4 7 Sa GNDHF2 4 D1 H R R116 464E 500 215 GNDHF3 C121 C124 En 33p 33p REF_BUS R118 R121 u 3 H8 68E1 68E1 D v CHANNEL 1 DACTESTA 5 32 C107 470p DEE T 1n 4B1 ee ee a I 1 41 PROBE A T AC DC R109 27 E T 2 15 R157 TP155 at i n C101 i p 5275 22 R103 28 A 44 01 220K 10n TP156 LF E 35 R158 TRIGA sci Bt R101 R102 R104 2 487K 487K K171 26K1 i sen R137 R138 R139 R140 B SENSE 562 ETC FI3721 GPROT 3 01 R141 R143 a 215K 909K CAESIO i R159 red input SOPPM PROTGND 100 3 F13 R142 R144 SCLK C159 C162 i C142 p i 147K ir 348E C146 e 100p 4p7 te re INPUT 50PPM In SDAT 4 17 BLOCK 4 17 1 1 X100 SCLK 4 7
84. 5322 130 10673 5322 130 10674 5322 130 31928 5322 130 63289 4822 130 42513 5322 265 10725 5322 265 10726 4822 267 30431 5322 267 10501 5322 267 10502 5322 156 11139 8 6 Accessory Replacement Parts Black ground lead for STL120 5322 320 11354 8 23 Chapter 9 Circuit Diagrams Title Page 9 T IntroduCtOTic c ot oeste ama yma 9 3 9 2 Schematic Diagrams aa eee eee aede ide 9 3 9 1 Circuit Diagrams 9 9 1 Introduction 9 1 Introduction This chapter contains all circuit diagrams and PCA drawings of the test tool There are no serviceable parts on the LCD unit Therefore no circuit diagrams and drawings of the LCD unit are provided Referring signals from one place to another in the circuit diagrams is done in the following way A B SIGNAL 5 C2 s SIGNAL LB3 Figure 9 1 Circuit Diagram 1 Figure 9 5 Circuit diagram 5 The line SIGNAL on circuit diagram 1 location B3 1 B3 is connected to the line SIGNAL on circuit diagram 5 location C2 5 C2 If the signal is referred to a location on the same circuit diagram the circuit diagram number is omitted 9 2 Schematic Diagrams The tables below show where to find the parts on the Main PCA circuit diagrams and assembly drawings Separate tables are created for the Main PCA side 1 and side 2 assembly drawing B402 C4 4 J10 indicates that part 402 be found in gt location C4 on the Main PCA
85. 534 if at a fixed level replace N531 nn TP536 TP537 TP534 0 5V ov lt 500 ms 7 5 4 Keyboard Proceed as follows if one or more keys cannot be operated 1 Replace the key pad and the key pad foil to see if this cures the problem 2 Press a key and check ROWO 5 measure spots MS432 MS437 for the signal shown below Press key 50 ms us pulses Release key If no key is pressed the ROW lines are low if a battery is installed if the 43 is powered by the the mains adapter only the lines are alternating pulsing and low 3 Check COLO 3 measure spots MS438 MS441 for a 3 3V level Then press and hold a key and check the matching COL line for the signal shown below Press key 50 ms x us pulses Release key If not correct check the connections from X452 to D471 replace D471 For the ON OFF key see 7 5 13 Corrective Maintenance 7 7 5 Miscellaneous Functions 7 5 5 Optical Port Serial RS232 Interface Receive RXD 1 Check the voltage RXDA on TP522 for 200 mV and the voltage RXD on TP527 buffered and amplified RXDA voltage for 3 3V 2 Shine with a lamp in the optical port H522 Check the voltage RXDA on TP522 for 0 0 6V and RXD on 527 for OV Send TXD 1 Check the voltage TXD on TP521 for 3 3V 2 Press to start the test tool data output Check the voltage TXD on TP521
86. 6 5322 209 13143 N531 LOW POW OPAMP LMC7101BIM5X NSC 5322 209 15144 N600 LAMP CONTROLLER UC3872DW UNI 5322 209 14851 R1 MTL FILM RST MRS25 196 220K 0 25W 4822 053 20224 R2 MTL FILM RST MRS25 196 220K 0 25W 4822 053 20224 R101 MTL FILM RST MRS25 1 487K 4822 050 24874 R102 MTL FILM RST MRS25 1 487K 4822 050 24874 R103 RESISTOR CHIP RC12H 1 1M 4822 117 11948 R104 RESISTOR CHIP RC12H 1 26K1 5322 117 12448 R105 RESISTOR CHIP RC12H 1 511E 5322 117 12451 R106 PTC THERM DISC 600V 300 500E 5322 116 40274 R108 RESISTOR CHIP RC12H 1 511E 5322 117 12451 R109 RESISTOR CHIP RC12H 1 2K15 5322 117 12452 R110 RESISTOR CHIP RC12H 1 2K15 5322 117 12452 R111 RESISTOR CHIP RC11 2 10M 4822 051 20106 R112 RESISTOR CHIP RC11 2 10M 4822 051 20106 R113 RESISTOR CHIP RC11 2 10M 4822 051 20106 R114 RESISTOR CHIP RC11 2 10M 4822 051 20106 R116 RESISTOR CHIP RC12H 1 215E 5322 117 12453 R117 RESISTOR CHIP RC12H 1 215E 5322 117 12453 R118 RESISTOR CHIP RC12H 1 68E1 5322 117 12454 R119 RESISTOR CHIP RC12H 1 464E 5322 117 12455 R120 RESISTOR CHIP RC11 2 10M 4822 051 20106 R121 RESISTOR CHIP RC12H 1 68E1 5322 117 12454 R125 RESISTOR CHIP RC12H 1 68E1 5322 117 12454 R131 RESISTOR CHIP RC12G 1 1M 5322 117 12484 R132 RESISTOR CHIP RC12G 1 100K 5322 117 12485 R133 RESISTOR CHIP RC12G 1 10K 5322 117 12486 R134 RESISTOR CHIP RC12G 1 1K 5322 117 12487 8 15 43 Service Manual 8 16 Reference Designator Description Ordering Code
87. 6 8 Disassembling 6 1 Introduction 6 1 Introduction This section provides the required disassembling procedures The printed circuit board removed from the test tool must be adequately protected against damage Warning To avoid electric shock disconnect test leads probes and power supply from any live source and from the test tool itself Always remove the battery pack before completely disassembling the test tool If repair of the disassembled test tool under voltage is required it shall be carried out only by qualified personnel using customary precautions against electric shock 6 2 Disassembling Procedures 6 1 1 Required Tools To access all the assemblies you need the following e Static free work surface and anti static wrist wrap e 8 and 10 Torx screwdrivers e Cotton gloves to avoid contaminating the lens and PCA 6 2 2 Removing the Battery Pack Referring to Figure 6 1 use the following procedure to remove the battery pack 1 Loosen the M3 Torx screw item 15 do not remove it from the battery door 2 Liftthe battery door at the screw edge to remove it 3 Lift out the battery pack and unplug the cable leading to the Main pull the cable gently backwards 6 2 3 Removing the Bail Referring to Figure 6 1 use the following procedure to remove the bail item 16 1 Setthe bail to a 45 degree position respective to the test tool bottom 2 Holding the test tool tight rotate the bail
88. 64 8 screw M2 5x16 5322 502 14132 9 O ring 17 mm Input A B 5322 530 10272 10 O ring 2 12 mm COM input 5322 530 10273 Note If the main PCA must be replaced you must order the complete Main PCA Unit 8 6 ST8015 Figure 8 2 Main PCA Unit 2x ST8015 CGM List of Replaceable Parts 8 5 Main PCA Parts 8 8 5 Main PCA Parts See Figures 9 7 9 10 at the end of Chapter 9 for the Main PCA drawings Table 8 3 Main PCA Reference Description Ordering Code Designator 1 Led Holder for H521 and H522 5322 255 41213 2 Screw for Input Banana Jack Assembly 5322 502 14362 3 X100 Input Banana Jack Assembly 5322 264 10311 without Input A B and COM O rings see Figure 8 2 B401 QUARTZ CRYSTAL 32 768KHZ SEK 5322 242 10302 B402 QUARTZ CRYSTAL 16 0MHZ KDK 5322 242 10573 B403 QUARTZ CRYSTAL 25 0MHZ KDK 5322 242 10574 C101 MKC FILM CAP 630V 10 22NF 5322 121 10616 C102 SUPPR CAPACITOR 0 1 UF 5322 121 10527 C104 CER CAP 3 15KV 5 120PF 5322 126 14046 C105 ALCAP NICHICON 16V 10UF 5322 124 41979 C106 CER CAP 1KV 20 80 4 7NF 5322 126 13825 C107 CER CHIP CAP 63V 5 470PF 5322 122 32268 C111 CER CAP 1 500V 0 25PF 4 7PF 5322 122 33082 C112 CER 1 500V 0 25PF 4 7PF 5322 122 33082 C113 CER CAP 1 500V 0 25PF 4 7PF 5322 122 33082 C114 CER CAP 1 500V 0 25PF 4 7PF 5322 122 33082 C116 CER CAP 1 500V 0 25PF 4 7PF 5322 122 33082 C117 CER CAP 1 500V 296 10PF 4822 122 31195 C118 CER CAP 1 500V 0 25PF 4 7PF
89. 7 13 1 3 9 Reference Voltages anne Br RE a 7 14 10 reete dete ette 7 14 4 5 11 Reset ROM Line ROMRST 2 2 sa gt 7 14 14 3 12 RAM ee 7 14 7 5 13 Power ON OFF 3 I ERRORIBUS 7 15 7 5 I4 PAN tete e tette tte e e te ten dene 7 15 7 5 15 Randomize Circuit eese eee enhn hene enne 7 15 Corrective Maintenance 7 7 1 Introduction 7 1 Introduction This chapter describes troubleshooting procedures that can be used to isolate problems with the test tool Y Warning Opening the case may expose hazardous voltages For example the voltage for the LCD back light fluorescent lamp is gt 400V Always disconnect the test tool from all voltage sources and remove the batteries before opening the case If repair of the disassembled test tool under voltage is required it shall be carried out only by qualified personnel using customary precautions against electric shock e Ifthe test tool fails first verify that you are operating it correctly by reviewing the operating instructions in the Users Manual e When making measurements for fault finding you can use the black COM input banana jack or the metal shielding on the Main PCA unit as measurement ground e To access the Main PCA for measurements proceed as follows l 2 3 Remove the Main PCA unit see 6 2 5 Disassemble the Main PCA unit see 6 3 Connect the Display Assembly flat cable the Backlight c
90. 8 Test Tool Input 2 to 5500A NORMAL output 2 Press 3 Press e to highlight INRUSH CURRENT 4 Press to enter mode gt ST8588 wmf Now the MAXIMUM CURRENT is highlighted If the CURRENT IS NOT 1000A then 1 Press Press to highlight 1000A 2 3 Press to confirm L mark changes to 4 Setthe 5500A to 0V NORMAL output eA Press S to highlight INRUSH TIME 6 Press to select 7 Press to highlight 10 seconds 4 28 Performance Verification A 4 8 Sags amp Swells 8 Press to confirm L mark changes to 9 Press to highlight START 10 Press to start the measurement 11 Setthe 5500A to 1 5V Now the measurement should start and continue for 10s The trigger point is after 2 divisions With 20 you can move a cursor and with you can toggle between the cursors Checking the result 1 Press 2 0 to move the left cursor to the fourth division Press to toggle to the right cursor Press 20 to move the right cursor to the fifth division 2 3 4 Observe the readings and verify that they are between 1 38 and 1 62 kA 5 When you are finished set the 5500A to Standby 4 8 Sags amp Swells Proceed as follows to test the sags amp swells mode FLUKE 5500A CALIBRATOR PM9081 9093 PM9091 001 1 5m PM9092 001 0 5m ST8001 ST8001 CGM Figure 4 9 Test Tool Input 1 amp 2 5500A Normal Output 1 Connect the test tool to the 5500A as s
91. AR VBAT E ecce M to EP VGARDRIVE FRoMPOWER CHARGER CONVERTER R503 VBATSUP 260 69 66 ADAPTER oe T x b 64 EVGARVAL m R513 VBATHIGH 27 EE i R501 A VBATT 3 BATVOLT 503 C505 IE 55 ml i R512 TEMPHI 4 IBATP 9 iBATCUR R504 R506 R507 CHAGATE CONTROL 80 CHARCURR CHASENSN 14 CHASENSP D i COSC R514 MAXCHA 16 Loss R502 VCHDRWE 115 516 vaDALOW 8 __VADALOW 8 y VADAPTER 220 12 MAINVAL TL LV566 ur i i 18 2 inear regulator C507 POWER ASIC Figure 3 3 Power Supply Block Diagram As described in Section 3 2 5 the test tool operating mode depends on the connected power source The voltage VBAT is supplied either by the power adapter via V506 L501 or by the battery pack It powers a part of the P ASIC via R503 to pin 60 VBATSUP If the test tool is off the Fly Back Converter is off and VBAT powers the D ASIC via transistor V569 3V3GAR This 3V3GAR voltage is controlled and sensed by the P ASIC If itis NOT OK lt 3 05V the output VGARVAL pin 64 is low The VGARVAL line is connected to the D ASIC and if the line is low the D ASIC is inactive the test tool is in the Idle mode A low VGARVAL line operates as a reset for the D ASIC If VGARVAL is high 3V3GAR gt 3 05V the D ASIC becomes active and the Off mode is entered The D ASIC monitors the P ASIC output pin 12 MAINVAL
92. CTEST 43 Service Manual 3 18 Input 2 Voltage Measurements The Input 2 circuit has no HF path The principle of operation is the same as for the Input 1 LF path The input ground is connected via PTC resistor R201 to the measurement ground Any voltage across the PTC resistor will be added to the input signal and cause a mis reading This influences Input 2 in particular as this input operates mostly in the lowest voltage ranges see section 3 2 1 For this reason a hum rejection circuit is added for Input 2 The voltage across the PTC is supplied to the inverting X1 amplifier N202 Then the AC part of the N202 output signal is subtracted from the input sigal on the C ASIC LF input pin 42 Resistance Measurements Input 1 only The unknown resistance Rx is connected to Input 1 and the black COM input The T ASIC supplies a constant current to Rx via relay contacts K173 and the PTC resistor R172 The voltage across Rx is supplied to a high impedance input buffer in the C ASIC via the LF input pin 42 The C ASIC conditions the voltage across Rx to an output voltage of 50 mV d This voltage is supplied to the ADC on the Digital part The ADC data is read and processed by the D ASIC and represented as a numerical reading and a bar graph Table 3 4 shows the relation between the reading range 62 the trace sensitivity Q d and the current in Rx Table 3 4 Ohms Ranges Trace Sensitivity and Current Range 502
93. Cx and controls a CLAMP circuit in the T ASIC This circuit limits the voltage on Input 1 at capacitance measurements The protection circuit prevents the T ASIC from being damaged by voltages supplied to the input during resistance or capacitance measurements The T ASIC contains opamps to derive reference voltages from a 1 23 V reference source The gain factors for these opamps are determined by resistors in the REF GAIN circuit The reference voltages are supplied to various circuits The T ASIC also controls the Input 1 2 AC DC input coupling relays and the Q F relay Control data for the T ASIC are provided by the D ASIC via the SDAT and SCLK serial communication lines 3 2 3 Digital Circuit The D ASIC includes a micro processor ADC sample acquisition logic trigger logic display and keyboard control logic I O ports and various other logic circuits The instrument software is stored in the 8M FlashROM the 4M RAM is used for temporary data storage For Voltage and Resistance measurements the conditioned Input 1 2 voltages are supplied to the ADC A and ADC B ADC The voltages are sampled and digitized by the ADC s The output data of the ADC s are acquired and processed by the D ASIC For capacitance measurements the pulse width of the T ASIC output signal ALLTRIG which is proportional to the unknown capacitance is counted by the D ASIC The DPWM BUS Digital Pulse Width Modulation supplies square wave signals with a variabl
94. DCB determine the input voltage swing that corresponds to an output data swing of 00000000 to 11111111 DO D7 The reference voltages are supplied by the reference circuit on the Trigger part The ADC output voltages MIDADC A B are supplied to the C ASIC s input pin 28 and are added to the conditioned input signal The MIDADC voltage matches the middle of the C ASIC output swing to the middle of the ADC input swing Current IREF is supplied to pin 7 of the ADC s via R403 R453 for biasing internal ADC circuits ADC data acquisition for traces and numerical readings During an acquisition cycle ADC samples are acquired for Scope traces and numerical readings The test tool software starts an acquisition cycle The D ASIC acquires data from the ADC and stores them internally in a cyclic Fast Acquisition Memory FAM The D ASIC also makes the HOLDOFF line low to enable the T ASIC to generate the trigger signal TRIGDT The acquisition cycle is stopped if the required number of samples is acquired From the FAM the ADC data are moved to the RAM D475 The ADC data stored in the RAM are processed and represented as traces and readings Triggering HOLDOFF TRIGDT Randomize To start a new trace the D ASIC makes the HOLDOFF signal low Now the T ASIC can generate the trigger signal TRIGDT For signal frequencies higher than the system clock frequency and in the random repetitive sampling mode no fixed time relation between the HOLDOFF sign
95. ER iret 2828 4 30 TIT POWERS 22a IUD IE RE RR DIRE A 4 31 4 12 Transients a 4 32 Calibration Adjustment U 5 1 SA MIT Eme 5 3 331 1 Introduction S SS RSS 5 3 5 1 2 Calibration number and date sene 5 3 2 1 3 General Instructions sees certe eee ied 5 4 5 2 Equipment Required For Calibration 5 4 5 3 Starting Calibration Adjustment eene 5 4 5 4 Contrast Calibration 5 6 5 5 Warming Up amp Pre Calibration eene 5 7 5 0 Final Calibration oet e e tee ha reet eet oet nn 5 7 5 071 HE Gain i ie SESS 5 8 5 6 2 Delta T Gain Trigger Delay Time amp Pulse Adjust Input 1 5 9 5 6 3 Gain DMM Gain Volt 5 10 SOA Volt Zero te te ae 5 12 see ar ee 5 12 5 6 6 Capacitance Gain Low and High eene 5 13 5 6 7 Capacitance Clamp amp 7 5 14 5 0 5 Capacitance Game rin e 5 14 5 7 Save Calibration Data and 5 15 Disassembling eere eerta 6 1 Contents continued O Lo Enine 6 3 6 2 Disassembling Procedures 6 3 6 11 Requir
96. FLLIKE 43 Power Quality Analyzer Service Manual 4822 872 05377 September 1998 Rev 3 07 00 1998 2000 Fluke Corporation All rights reserved Printed in the Netherlands All product names are trademarks of their respective companies SERVICE CENTERS To locate an authorized service center visit us on the World Wide Web http www fluke com or call Fluke using any of the phone numbers listed below 1 888 993 5853 in U S A and Canada 31 402 678 200 in Europe 1 425 356 5500 from other countries Table of Contents Chapter Title Page 1 Safety Instructions 1 1 1 1 ntr duction EC DE UU E 1 3 T2 Safety Precautions zurru tine ne ete e e e rtr e eene e ete e rete 1 3 1 3 Caution and Warning Statements eese 1 3 I Symbols tt et 1 3 1 5 Impaired Safety 1 4 1 6 General Safety Information l u uu a eene 1 4 2 Characteristics akin cia ni inia nda esi das cr E FRA 2 1 271 Introduction ERE EE EE ees 2 3 2 2 Safety Specifications 2 3 2 3 Function Specifications ua 2 4 2 3 1 Electrical functions 2 4 25272 e puteo ete ede en ee E 2 5 PAESI 2 7 2 3 4 Record iot ttt tte 2 7 2 4 ertet etit era ae 2 8 2 5 Current Probe o ERE RE RR RE EE ENS 2 8 2 6 Envi
97. IP CAP 63V 5 22PF 5322 122 32658 C356 MKPS FILM CAP 25V 10 15NF 5322 121 10834 C357 CHIPCAP X7B 0805 10 22NF 5322 122 32654 C376 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C377 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C378 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C379 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C381 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C382 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C391 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C392 ALCAP NICHICON 16V 10UF 5322 124 41979 C393 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C394 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C395 CHIPCAP NPO 0805 5 1NF 5322 126 10511 C396 CER CHIPCAP 25V 20 100NF 5322 126 13638 C397 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C398 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C399 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C400 CHIPCAP X7B 0805 10 22NF 5322 122 32654 List of Replaceable Parts 8 5 Main PCA Parts 8 Reference Description Ordering Code Designator C401 CER CHIP CAP 63V 0 25PF 4 7PF 5322 122 32287 C402 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C403 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C404 CER CHIP CAP 63V 596 470PF 5322 122 32268 C407 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C408 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C409 CHIPCAP X7B 0805 10 22NF 5322 122 32654 C416 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C431 CER CHIPCAP 25V 2096 100NF 5322 126 13638 C432 CER CHIPCAP 25V 2096 100NF 5322 126 136
98. ISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RC12H 1 10K RC12H 196 5K11 RC12H 1 1K RC 02H 196 261E RC 02H 196 261E RC12H 196 26K1 RC12H 1 OE RC12H 1 OE RC12H 196 10E RC12H 1 1E RC12H 196 10E RC12H 196 10E RC12H 1 OE RC12H 196 10E RC12H 1 1E RC12H 1 OE RC12H 196 10E RC12H 1 1E RC12H 1 1E RC12H 196 10K RC12H 196 21K5 RC12H 1 1E RC12H 1 1K RC12H 196 511E RC12H 196 3K16 RC11 296 10M RC12H 196 26K1 RC12H 1 68E1 RC12H 1 1E RC12H 1 1E RC12H 196 21K5 RC12H 196 147K RC12H 196 147K 4822 117 10833 5322 117 12469 4822 117 11154 4822 051 52611 4822 051 52611 5322 117 12448 5322 117 12471 5322 117 12471 5322 117 12464 5322 117 12472 5322 117 12464 5322 117 12464 5322 117 12471 5322 117 12464 5322 117 12472 5322 117 12471 5322 117 12464 5322 117 12472 5322 117 12472 4822 117 10833 5322 117 12477 5322 117 12472 4822 117 11154 5322 117 12451 5322 117 12465 4822 051 20106 5322 117 12448 5322 117 12454 5322 117 12472 5322 117 12472 5322 117 12477 5322 117 12478 5322 117 12478 8 19 43 Service Manual 8 20 Reference Designator Description Ordering Code R434 R436 R438 R439 R441 R442 R453 R454 R466 R467 R469 R470 R471 R472 R473 R474 R478 R479 R480 R482 R483 R485 R486 R489 R491 R495 R496 R497 R499 R501 R502 R503 R504 RESISTOR CHIP RESI
99. Input 1 voltage range for electrical measurements is 4V div which is high in comparison with the Input 2 range Ohms Continuity and Diode measurement function Input 1 only The T ASIC supplies a current via the Q F relays to the unknown resistance Rx or diode connected to the Input 1 and the COM input jacket The voltage drop across Rx or the diode is measured according to the Input 1 measurement principle Capacitance measurement function Input 1 only The T ASIC supplies a current via the relays to the unknown capacitance Cx connected to the Input 1 and the COM input jacket Cx is charged and discharged by this current The C ASIC converts the charging time and the discharging time into a pulse width signal This signal is supplied to the T ASIC via the C ASIC trigger output TRIG A The T ASIC shapes and levels the signal and supplies the resulting pulse width signal ALLTRIG to the D ASIC The D ASIC counts the pulse width and calculates the capacitance reading Scope measurement function In the Scope measurements function the test tool shows the traces and readings derived from the input signals The Input 1 HF path is enabled which results in a 20 MHz bandwidth The Input 2 bandwidth is 15 kHz Other measurement functions Volts Amperes Hertz LF Power LF Harmonics LF Sags amp Swells LF Transients Inrush Current LF and Temperature measurement results are calculated from acquired input voltage samples For
100. Install the battery pack and the battery door see figure 6 5 Disassembling 6 5 Reassembling the Test Tool DUST SEAL SHIELDING FOIL TOPCASE INTERCONNECTOR PART SHIELDING BRACKET INTERCONNECTOR PART DISPLAY ASSEMBLY SHIELDING BRACKET 878185 ST8185 EPS Figure 6 4 Mounting the display shielding bracket ST78197 EPS Figure 6 5 Battery pack installation Chapter 7 Corrective Maintenance Title Page Introduction iie eee eee ec gr es 7 3 1 2 Star ng Fault Finding nere tee eere e 7 4 PS Charger Circuit une Hi III 7 4 7 4 Starting with a Dead Test Tool 7 6 7 4 1 Test Tool Completely Dead 7 6 7 4 2 Test Tool Software Does not 7 7 7 4 3 Software Runs Test Tool not Operative 7 1 7 5 Miscellaneous Functions aa 7 7 7 5 T Display and Back Light sense 7 1 1 3 2 Fly B ck EonVerter oe tne en e enm ete eet een 7 8 153 SlOW VD GC 7 9 TDA Keyboard eiae 7 10 7 5 5 Optical Port Serial RS232 Interface 7 11 7 5 6 Input Channel 1 and 2 Voltage 7 11 7 5 7 Ohms and Capacitance Measurements 7 12 J S S Trigger Functions s o ER ER ERR eta
101. J Press to confirm changes to Press to return to SCOPE Verify that no trace is shown on the test tool display and that at the upper right corner of the display HOLD is not shown If the display shows HOLD then press Hold should disappear and the test tool is re armed for a trigger Increase the 5500A voltage slowly in 0 1V steps using the 5500A EDIT FIELD function until the test tool is triggered and the traces are shown Verify that the 5500A voltage is between 1 5V and 2 5V when the test tool is triggered To repeat the test set the 5500 to 0 4V and start at step 5 Set the 5500A to Standby Select negative TRIGGER SLOPE e Press to select menu SCOPE SETUP e Press to highlight Trigger slope e Press to select the TRIGGER SLOPE menu e Press to highlight negative trigger L e Press to confirm L mark changes to Press return to SCOPE Set the trigger level to 2 divisions from the screen center For negative slope triggering the trigger level is the bottom of the trigger icon L e Press to select TRIGGER e Using set the trigger level to 2 divisions from the screen center Set the 5500A to source 3V DC Verify that no trace is shown on the test tool display and that at the upper right corner of the display HOLD is not shown If the display shows HOLD then press ns Hold should disappear and the test tool is re armed for a trigger Decrease the 5500A voltag
102. KE 5500A CALIBRATOR Ga P ec E gf X e M it ST8129 CGM Figure 5 6 Volt Gain Calibration Input Connections 500V Set the 5500A to supply a DC voltage of 500V Set the 5500A to operate OPR Press to start the calibration Gain DMM CL0814 and Gain DMM CL0815 will be calibrated now Wait until the display shows calibration status Gain DMM CL0815 READY Set the 5500A to zero and to Standby Continue at Section 5 6 4 5 6 4 Volt Zero Proceed as follows to do the Volt Zero calibration Qv hc Dr Press to select calibration adjustment step Volt Zero CL 0820 IDLE Terminate Input 1 and Input 2 with the BB120 and a 500 or lower termination Press to start the zero calibration of all mV d settings CL0820 CL0835 Wait until the display shows Volt Zero CL 0835 READY Remove the 500 termination from the inputs Continue at Section 5 6 5 5 6 5 Gain Ohm Proceed as follows to do the Gain Ohm calibration 1 2 Press to select calibration adjustment step Gain Ohm CL 0860 IDLE Connect the UUT to the 5500A as shown in Figure 5 7 Notice that the sense leads must be connected directly to the test tool Calibration Adjustment 5 6 Final Calibration FLUKE 5500A CALIBRATOR ST8003 CGM Figure 5 7 Four wire Ohms calibration connections 3 Set the 5500A to the first test point in Table 5 4 Use the 5500A COMP 2 wire mode for t
103. L 5322 130 63289 V471 SIL DIODE BAS85 4822 130 82334 V495 P CHAN MOSFET BSS84 PEL 5322 130 10669 V501 SCHOTTKY DIODE MBRS340T3 MOT 5322 130 10674 V503 SCHOTTKY DIODE MBRS340T3 MOT 5322 130 10674 V504 SCHOTTKY DIODE MBRS340T3 MOT 5322 130 10674 V506 POWER TMOS FET MTD5PO6ET4 5322 130 10671 List of Replaceable Parts 8 Reference Designator Description Ordering Code V550 V551 V554 V555 V561 V562 V563 V564 V565 V566 V567 V569 V600 V601 V602 V603 V604 V605 X452 X453 X501 X503 X601 Z501 RECT DIODE BYD77A RECT DIODE BYD77A N CHAN MOSFET 2SK974STR HIT RECT DIODE BYD77A SCHOTTKY DIODE MBRS340T3 MOT SCHOTTKY DIODE MBRS340T3 MOT SCHOTTKY DIODE MBRS340T3 MOT SCHOTTKY DIODE MBRS1100T3 MOT LF TRANSISTOR BC848C LF TRANSISTOR BC848C PEL SCHOTTKY DIODE MBRS340T3 MOT LF TRANSISTOR BC869 PEL TMOS FET MMSFS3POSHD TMOS N CH FET MMDF3NO2HD MOT SCHOTTKY DIODE MBRS340T3 MOT SIL DIODE BAS16 PEL N CHAN FET BSN20 PEL LF TRANSISTOR BC858C PEL FLEX PRINT CONNECTOR 15 P FCN FLEX PRINT CONNECTOR 21 P FCN DC POWER JACK 0739 01 010 MALE HEADER 2MM 6 P DBL RT ANG MALE HEADER 7 SNG RT ANG EMI FILTER 50V 10A MUR 5322 130 10763 5322 130 10763 5322 130 62921 5322 130 10763 5322 130 10674 5322 130 10674 5322 130 10674 5322 130 10675 5322 130 42136 5322 130 42136 5322 130 10674 4822 130 60142 5322 130 10672
104. NVAL H TURN ON amp MAINVAL H MAINVAL H TURN OFF Operational Operational amp Charge Mode Mode Charge Mode MAINVAL L TURN ON BATTVOLT 4V or AutoShutDown Battery refresh or TURN OFF MAINVAL L Figure 3 2 Fluke 43 Start up Sequence Operating Modes Table 3 2 shows an overview of the test tool operating modes Table 3 2 Fluke 43 Operating Modes Mode Conditions Remark Idle mode No power adapter and no battery no activity Off mode No power adapter connected battery P ASIC amp D ASIC powered installed test tool off VBAT amp 3V3GAR Mask active mode No valid instrument software or and gt key Mask software runs pressed when turning on Charge mode Power adapter connected and test tool off Batteries will be charged Operational amp Power adapter connected and test tool on Test tool operational and Charge mode batteries will be charged Operational mode No power adapter connected battery Test tool operational powered installed and test tool on by batteries 3 8 Circuit Descriptions 3 3 3 Detailed Circuit Descriptions 3 3 Detailed Circuit Descriptions 3 3 1 Power Circuit The description below refers to circuit diagram Figure 9 5 Power Sources Operating Modes Figure 3 3 shows a simplified diagram of the power supply and battery charger circuit SUPPLY FLY BACK CONVERTER 3V3G
105. Optical Interface Cable PM9080 2 Start the Terminal program and select the following Settings Terminal Emulation TTY Generic Terminal Preferences Terminal Modes CR gt CR LF Line Wrap Inbound Local Echo Outbound Sound Communications Baud Rate 9600 Data Bits 8 Stop Bits 1 Parity None Flow Control Xon Xoff Connector COMn 3 Turn the test tool off Keep the keys pressed and turn the test tool on again This will start up the mask software You will hear a very weak beep now Corrective Maintenance 7 7 5 Miscellaneous Functions 4 In the terminal program type capital characters X no ENTER After a number of characters the test tool mask software will respond with an acknowledge 0 zero This indicates that the communication between the Terminal program and the test tool is accomplished Type ID and press Enter The test tool will return an acknowledge 0 zero and the string Universal Host Mask software UHM V2 1 If it does not check the Terminal program settings the interface connection and the test tool Optical Port 7 5 5 Type EX10 H400000 H20000 and press Enter The test tool will return one of the following acknowledges 0 the RAM is OK 1 syntax error in the typed command 6 the RAM does not properly function Notice that the acknowledge overwites the first character of the message sent to the test tool 7 5 13 Power ON OFF 1 2 Check TP528 for 3V at power
106. PS control signal is converted to appropriate voltage levels for the FET switch V554 by the BOOST circuit The voltage VBAT supplies the BOOST circuit power via V553 and R561 The FREQPS signal is also supplied to the D ASIC in order to detect if the Fly Back converter is running well V551 and C552 limit the voltage on the primary winding of T552 when the FET V554 is turned of The signal SNUB increases the FLYGATE high level to decreases ON resistance of V554 less power dissipation in V554 Circuit Descriptions 3 3 Detailed Circuit Descriptions 3 FLYBOOST SNUB FLYSENSP IMAXFLY 52 VCOIL 58 3V3A CONTROL 51 VOUTHI 54 VSENS PWRONOFF 1 23V COSC 43 C553 POWER ASIC Figure 3 6 Fly Back Converter Block Diagram Slow ADC The Slow ADC enables the D ASIC to measure the following signals BATCUR BATVOLT BATTEMP BATIDENT Battery current voltage temperature type DACTEST A DACTEST B and DACTEST T test output of the C ASIC s and the T ASIC De multiplexer D531 supplies one of these signals to its output and to the input of comparator N531 TP536 The D ASIC supplies the selection control signals SELMUXO 2 The Slow ADC works according to the successive approximation principle The D ASIC changes the SADCLEV signal level and thus the voltage level on pin 3 of the comparator step wise by changing the duty cycle of the PWM signa
107. R410 pg REF BUS B D 43 ADCBS vss 114 4 T 68E1 ADC B D5 44 ADCB5 13 VD ES uis ADC B D4 45 Ramais 2 RAM A15 pum E 3K16 ADCB BUS ADCB4 TOON VD 46 VDD Rama s RAMATS L 7 vss 110 17 B D3 48 ADCB3 RAMA18 109 RAM A18 RAM ADDR ADC B D2 49 ADCB2 Rxp2 108 RXD2 2 30VD Ann Sr ADOBI Le 5447 5 016 B E PUT DOE ADOBO I EMUL Hoste Rage R497 H 22n SUPPRDET 112 Ss Ol 3 95 l 128x8 open 0Ohm gt amp zd dd E t nier R491 256x8 open 0 Ohm hl gt gt 51 1 512x8 0 Ohm open R471 R472 32225 25 Rag he AM iM SOOEKESSS5SSOO gt SSFUFER gt SnZmL 5 00000000 for lela f len leo ft lo lo e e S J JR FS 25 ko c eo eo eo n 5 5 B lo o js o R485 IL 3 R489 71 ADC CHANNEL B PROBE A E Snag 10K VD R485 R486 for electronic VDDDB A10 IPROBE 1 E3 gt d R486 R489 for visual mainboard VDDO 1 2 2 x a zzz as WUZ ER 10K 1 version detection 10 o Pee DD oys RUE seik E 2 2 SRERRGEREE A 3 L C466 100n 100n SDAT 109 a A A 6 N 6 ST R474 TP496 V495 TP495 R495 won a a a 5584 C488 1 0487 te nile ES L 3K16 100p F 100p 6 2 22 111 4 SADC BUS
108. RAMRD 132 READRAM RAM AT3 255 bag 28 RAMCDT C470 I nr 29 SHLDPWM D ASIC RAMWR 132 WRITERAM WRITERAM 5 lw Daz 28 RAM D6 gt C480 HO RNDM 25 BwMA10N6 vss 187 6 52 17 Das 27 05 p T 100n AUCH SU A PWMA1ONS VDD pan EI qa RAMAIS 7 A15 Das 28 RAM D4 R409 R436 PWMA10N4 RAMA0 12 8 25 RAM D3 17 CONTRAST Z6KT Z6K1 CONTR D POS B D 29 PWMATON3 Ramat 1128 RAM A01 Ram_A18 9 Mr 8 par 24 15 16 73V3D DPWM BUS NC 30 pwMA10N2 RAMA2 127 RAM A02 RAM A16 10 late 23 RAM_D2 6436 OFFSETBD 31 PWMA12N1 RAMA 126 RAM A03 RaM A14 Mlata Daz 22 RAM D Bao SR REFPWMI 32 VDDREFA MOT0002N1 RAMA4 125 RAMANI RAM A12 12 A12 DQ1 21 RAM DO VSSREF RAMAS RAM A07 13 20 00 ar 1K 511 10M n C463 OFFSETAD 34 PWMA12N0 123 A06 RAM A06 cae 0 RAMAT T T 100n F 5 K16 BACKBRIG 35 PWMA10N1 RAMA 122 RAM A07 RAM A95 15 las A2 18 RAM A02 POSAD 36 PWMA10N0 121 RAM_A08 RAM A04 16 4 A3 17_ RAM A03 CONTR D 37 PWMABNO 120 RAM AUS 128X8 SRAM V405 cana REFPWM2 38 VDDREFB 10 179 RAM 512X8 SRAM boc BSSB4 BSN20 P470 SADCLEVD 39 PWMB10N0 Ramat 118 RAM ATI G BSN20 p CHARCURD 40 PWMBBNO 12 117 RAMLAT B1 N y CONTRAST C404 gt VD 41 VCLAMPB RAMA13 y C7 ERAME 3 100n F ADO B D BM 42 ADCB7 115 RAM_A14 D Re SD
109. SD VSSO ale ROM 008 30 Das 18 gt 5 K2 LLCDTEMP e x DQ0 A6 g seeklekesesleses gesl zg R488 0 Ohm for 2 a 23 pr REFUS u ecee d 2 35855225552 xExxxxBBBARABBBR 8555855 ROMREAD 55 AS 2 Intel 16M ROM 9 mer amp Sen 55 MIDADC A z 5 oO 65655665565656655 mooooooo E CER 1 210 ADCA_BUS FRAME aA Sig ee eec ec er fe fee Yo ac fe a ec E ac ee ee ec ec Jee e x x a x x ROM 00 25 A223 ROM A02 E Y L 24 ROMAOT DTRG BUS o 3 H13 z 2 2 ROM_A03 TP437 ES E EE ROMWRITE 1 gee ROM_ADDR Spin e e ee ee aee e I I I o to e RAMPCLK 2 e xrara SIE SIEHT ASAS S8 a6508 I ISP IP TES S is t C iii 2 TRIGDT 229999 5433433933339 295555958575 7085 744344 Direct connection for version lt 3 D _ APWM BUS PWN ane 8 504 dde Ne Delay circuit for PCB version 3 N 1 158 NO e TRIGQUAL NC inc NC Kasa asss ADT 2 ADCA7 IO9EXDTA 155 5 444 POS_B R431 POS BD TP431 ADC_A_D6 3 ADCA6 154 DEBUG 21 5 RSTRAMP ADC_A_D5 4 ADCAS Diec
110. STOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RC12H 1 147K RC12H 1 26K1 RC12H 196 147K RC12H 196 21K5 RC12H 196 3K16 RC12H 196 1K47 RC12H 196 21K5 RC12H 1 1E RC12H 1 1E RC12H 1 1E RC12H 196 100K RC12H 1 OE RC12H 196 1M RC12H 196 1M RC12H 196 100E RC12H 196 100E RC12H 196 10K RC12H 196 51K1 RC12H 196 10K SMD RES 511E 1 TC100 0805 SMD RES 51K1 1 TC100 0805 RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP RC12H 196 10K RC12H 196 10K RC12H 1 RC12H 196 51K1 RC12H 196 3K16 RC12H 196 3K16 RC12H 1 OE SMDRES 56K2 1 TC100 0805 RESISTOR CHIP RESISTOR CHIP RESISTOR CHIP LRCO1 5 OE1 RC12H 196 10E RC12H 196 10E RES 01 1206 5 1E 5322 117 12478 5322 117 12448 5322 117 12478 5322 117 12477 5322 117 12465 5322 117 12479 5322 117 12477 5322 117 12472 5322 117 12472 5322 117 12472 4822 117 10837 5322 117 12471 4822 117 11948 4822 117 11948 4822 117 11373 4822 117 11373 4822 117 10833 5322 117 12462 4822 117 10833 4022 301 21761 4022 301 22241 4822 117 10833 4822 117 10833 5322 117 12471 5322 117 12462 5322 117 12465 5322 117 12465 5322 117 12471 5322 117 13494 5322 117 11759 5322 117 12464 5322 117 12464 4822
111. Section 4 5 13 Due to calibrator noise occasionally OL overload can be shown 4 5 9 Input 1 and 2 AC Voltage Accuracy Test Proceed as follows to test the Input 1 and 2 AC Voltage accuracy 1 Warning Dangerous voltages will be present on the calibration source and connecting cables during the following steps Ensure that the calibrator is in standby mode before making any connection between the calibrator and the test tool Connect the test tool to the 5500A as for the previous test see Figure 4 5 4 17 43 Service Manual 4 18 Select the AUTO test tool setup e Press to select the MENU Press gt till SCOPE is highlighted Press to select SCOPE mode Select DC coupling amp reading for Input 1 and 2 e Press to select menu SCOPE SETUP e Press to select Input 1 READING Press gt to highlight ACrms Press confirm O mark changes to Press gt to highlight Input 1 Coupling Press to select the Input 1 Coupling menu Press amp gt to highlight AC Coupling Press 3 to confirm O mark changes to Press amp gt to select Input 2 READING Press E to select the Input 2 READING Press amp gt to highlight ACrms Press confirm O mark changes to Press amp gt to highlight Input 2 Coupling e Press to select the Input 2 COUPLING Press to highlight AC Coupling ENTER e Press to confirm L mar
112. Tool Software Does not Run c If you hear a normal beep the software runs but obviously the test tool is not operative Continue at 7 4 3 Software Runs Test Tool not Operative 7 4 1 Test Tool Completely Dead 1 Turn the test tool off Keep the 6 arrow keys pressed and turn the test tool on again This will start up the mask software If you still hear no beep continue at step 2 If you hear a weak beep now continue at 7 4 2 Check the Keyboard ROW1 line MS433 next to X452 for a 100 kHz square wave If not correct continue at step 3 If correct the mask software runs but the buzzer circuit does not function Check the buzzer function 7 5 10 and then continue at 7 4 2 Check N501 pin 60 VBATSUP for gt 4 8V If not correct check R503 and connections to battery pack Check TP571 3V3GAR for 3V3V If not correct this is possibly caused by V569 R580 TP571 short to ground loose pins of N501 or N501 defective Check the VD supply voltage on D ASIC D471 Temporarily remove R470 to check for short circuit Check N501 pin 64 VGARVAL for 3 3V If not correct a Check if the line is shorted to ground b Check N501 pin 73 REFPWM2 for 3V3 REFPWM2 is supplied N501 and derived from REFP on the reference circuit on the Trigger part Check Corrective Maintenance 7 7 5 Miscellaneous Functions TP307 N501 pin 72 REFP for 1 22V check V301 R307 If no 1 22V and V301 R307 and connections are
113. Vgs gate source voltage must be negative For that purpose the CHAGATE voltage must be negative with respect to VCHDRIVE The P ASIC voltage VCHDRIVE also limits the swing of the CHAGATE signal to 13V VCHDRIVE In V506 OFF V506 ON VCHDRIVE 13V 10 us Figure 3 4 CHAGATE Control Voltage 3V3GAR Voltage When the test tool is not turned on the Fly Back Converter does not run In this situation the 3V3GAR voltage for the D ASIC the FlashROM and the RAM is supplied via transistor V569 The voltage is controlled by the VGARDRV signal supplied by the P ASIC pin 69 The current sense voltage across R580 is supplied to pin 70 VGARCURR The voltage 3V3GAR is sensed on pin 66 for regulation The internal regulator in the P ASIC regulates the 3V3GAR voltage and limits the current 43 Service Manual 3 12 Fly Back Converter When the test tool is turned on the D ASIC makes the PWRONOFF line P ASIC pin 62 high Then the self oscillating Fly Back Converter becomes active It is started up by the internal 100 KHz oscillator that is also used for the Charger Converter circuit First the FLYGATE signal turns FET V554 on see Figure 3 5 and an increasing current flows in the primary transformer winding to ground via sense resistor R551 If the voltage FLYSENSP across this resistor exceeds a certain value the P ASIC turns FET V554 off Then a decreasing current flows in the secondary w
114. a 4 28 4 8 5205 GCS Wells nts mr tn tt h M 4 29 4 9 Etena Te iite ANNAE NEEE EEEE NE AEN 4 30 4 10 VOET AMPS HERTZ 2 tei eie edente teet ettet te itte eben ttd 4 30 rise sat oct sat tut ote ot sat cats oto uto cots act seen 4 31 4 12 TfanslIents ete eere eere u eere eee u tu luu tutu tu ete 4 32 Performance Verification A 4 1 Introduction 4 1 Introduction Warning Procedures in this chapter should be performed by qualified service personnel only To avoid electrical shock do not perform any servicing unless you are qualified to do so The test tool should be calibrated and in operating condition when you receive it The following performance tests are provided to ensure that the test tool is in a proper operating condition If the test tool fails any of the performance tests calibration adjustment see Chapter 5 and or repair see Chapter 7 is necessary The Performance Verification Procedure is based on the specifications listed in Chapter 2 of this Service Manual The values given here are valid for ambient temperatures between 18 C and 28 C The Performance Verification Procedure is a quick way to check most of the test tool s specifications Because of the highly integrated design of the test tool it is not always necessary to check all features separately For example the duty cycle pulse width and frequency measurement are b
115. a transistor V569 3V3GAR If the voltage 3V3GAR is below 3 05 V the P ASIC keeps its output signal VGARVAL supplied to the D ASIC low and the D ASIC will not start up The test tool is not working and is in the Idle mode If the voltage 3V3GAR is above 3 05 V the P ASIC makes the line VGARVAL high and the D ASIC will start up The test tool is operative now If it is powered by batteries only and not turned on it is in the Off mode In this mode the D ASIC is active the real time clock runs and the ON OFF key is monitored to see if the test tool will be turned on If the power adapter is connected P ASIC output MAINVAL high and or the test tool is turned on the embedded D ASIC program called mask software starts up The mask software checks if valid instrument software is present in the Flash ROM If not the test tool does not start up and the mask software continues running until the test tool is turned off or the power is removed This is called the Mask active mode The mask active mode can also be entered by pressing the and key when turning on the test tool If valid instrument software is present one of the following modes becomes active Charge mode The Charge mode is entered when the test tool is powered by the power adapter and is turned off The FLY BACK CONVERTER is off The CHARGER CONVERTER charges the batteries if installed Operational amp Charge mode The Operational amp Charge mode is
116. able and the Keypad Foil flex cable to the Main PCA unit Position the Keypad on the Keypad foil See Figure 7 1 The Test tool without the case is operative now Power the PCA via the Power Adapter and or battery pack Watch out for short circuiting due to metal parts on your desk REPAIR3 BMP Figure 7 1 Operative Test Tool without Case 43 Service Manual 7 2 Starting Fault Finding After each step continue with the next step unless stated otherwise Power the test tool by the battery pack only then by the power adapter only 1 The test tool operates with the power adapter but not with the battery only install a charged battery VBAT gt 4V and check the connections between the battery and the test tool X503 R504 R506 R507 The test tool operates with the battery pack but not with the power adapter only and the battery pack is not charged by the test tool continue at 7 3 Charger Circuit The test tool operates neither with the battery pack nor with the power adapter continue at 7 4 Starting with a Dead Test Tool Particular functions are not correct continue at 7 5 Miscellaneous Functions Table 7 1 Starting Fault Finding Power adapter Battery Pack Check 1 OK NOT OK Battery pack connector sense resistors 2 NOT OK OK See 7 3 Charger Circuit 3 NOT OK NOT OK See 7 4 Starting with a Dead Test Tool 4 Partly OK Partly OK See 7 5 Miscellaneous Functions 7 3 Charge
117. al and the system clock is allowed The RANDOMIZE circuit desynchronizes the HOLDOFF from the clock by phase modulation with a LF ramp signal Trigger qualifying ALLTRIG TRIGQUAL The ALLTRIG signal supplied by the T ASIC contains all possible triggers For normal triggering the T ASIC uses ALLTRIG to generate the final trigger TRIGDT For qualified triggering the D ASIC returns a qualified e g each trigger pulse to the T ASIC TRIGQUAL Now the T ASIC derives the final trigger TRIGDT from the qualified trigger signal TRIGQUAL Capacitance measurements ALLTRIG As described in Section 3 3 2 capacitance measurements are based on measuring the capacitor charging time using a known current The ALLTRIG pulse signal represents the charging time The time is counted by the D ASIC Microprocessor ROM and RAM control mask ROM The D ASIC includes a microprocessor with a 16 bit data bus The instrument software is loaded in Flash ROM D472 Measurement data and instrument settings are stored in RAM D475 All RAM data will be lost if all power sources battery and power adapter are removed The D ASIC has on chip mask ROM If no valid Flash ROM software is present when the test tool is turned on the mask ROM software will become activate The test tool can be forced to stay in the mask ROM software by pressing the and key and then turning the test tool on When active the mask ROM software generates a 100 kHz square wave on pi
118. and POS B voltages and the C ASIC OFFSET A and OFFSET B voltages REEN is also the input reference for amplifiers 3 and 4 3 23 43 Service Manual Amplifier 3 and 4 and connected resistors supply the REFADCT and REFADCB reference voltages for the ADC s Both voltages directly influence the gain accuracy of the ADC s The T ASIC can select some of the reference voltages to be output to pin 8 REFATT The REFATT voltage is used for internal calibration of the Input 1 and B overall gain Tracerot Signal The T ASIC generates the TRACEROT signal used by the C ASIC s Control signals TROTRST and TROTCLK are provided by the D ASIC AC DC Relay and O F Relay Control The Input 1 2 AC DC relays K171 K271 and the Input 1 F relay K173 are controlled by the T ASIC output signals ACDCA pin 22 ACDCB pin 23 and OHMA pin 24 SCLK SDAT Signals T ASIC control data e g for trigger source mode edge selection and relay control are provided by the D ASIC via the SCLK and SDAT serial control lines 3 3 4 Digital Circuit 3 24 See the Fluke 43 block diagram Figure 3 1 and circuit diagram Figure 9 4 The Digital part is built up around the D ASIC MOT0002 It provides the following functions e Analog to Digital Conversion of the conditioned Input 1 and Input 2 signals e ADC data acquisition for traces and numerical readings e Trigger processing e Pulse width measurements e g for capacitance measurement function
119. ased on the same measurement principles so only one of these functions needs to be verified 4 2 Equipment Required For Verification The primary source instrument used in the verification procedures is the Fluke 5500A If a 5500 is not available you can substitute another calibrator as long as it meets the minimum test requirements e Fluke 5500A Multi Product Calibrator including 5500A SC Oscilloscope Calibration Option e Stackable Test Leads 4x supplied with the 5500A e 500 Coax Cables 2x Fluke PM9091 1 5m or PM9092 0 5m e 500 feed through termination s 2x Fluke PM9585 as BB120 Shielded Banana to Female BNC adapters 2x supplied with the Fluke e Dual Banana Plug to Female BNC Adapter 1x Fluke PM9081 001 e Dual Banana Jack to Male BNC Adapter 1x Fluke PM9082 001 4 3 How To Verify Verification procedures for the display function and measure functions follow For each procedure the test requirements are listed If the result of the test does not meet the requirements the test tool should be recalibrated or repaired if necessary Follow these general instructions for all tests e For all tests power the test tool with the PM8907 power adapter The battery pack must be installed Allow the 5500A to satisfy its specified warm up period e For each test point wait for the 5500A to settle e Allow the test tool a minimum of 20 minutes to warm up 4 8 43 Service Manual 4 4 Displa
120. be defective d TP433 for 0 3 3V pulses Pulse width 4 10 for time base 2 us div and faster gt 40 us for time base 5 us div and slower pulse width increases with time base e TP336 for 0 6 0V pulses TP436 for 3 3 0V pulses the pulse width is about 40 us 10 ms If not correct check the RANDOMIZE circuit see 7 5 15 f TP437 SMPCLK for a 5 MHz time base 2 10 ms div or 25 MHz time base 1 ms div clock signal 3 3V Check SMPCLK on both sides of R339 7 13 43 Service Manual 7 5 9 Reference Voltages 1 Check a TP306 for 3 3V TP307 for 1 23V If not correct check replace V301 R307 C3112 P ASIC 501 b TP301 for 1 6 TP302 for 0 1V TP304 for 3 3V TP310 see figure below in ROLL mode TP310 is zero If not correct check replace REFERENCE GAIN circuit and T ASIC N301 1 2V 1 2V 1 800 ms 7 5 10 Buzzer Circuit 1 Press menu and select OHMS CONTINUITY CAPACITANCE Press Continuity 2 Short circuit Input 1 to COM The buzzer is activated now 3 Check TP496 for a 4 kHz 0 3V square wave during beeping 3 V if not activated 4 Check TP495 for a 4 kHz 3 30V square wave during beeping TP495 is 3V if the beeper is not activated 7 5 11 Reset ROM Line ROMRST 1 Check TP487 for 3V supplied by D471 7 5 12 RAM Test You can use the Microsoft Windows Terminal program to test the RAM Proceed as follows 1 Connect the Test Tool to a PC via the
121. block that allows software control of all modes and adjustments The transition frequency from the LF path to the HF path is approximately 20 kHz but there is a large overlap CHANNEL ASIC OQ 0258 ADC HF IN HF PATH OUTPUT STAGE TRIGGER LF PATH CONTROL SUPPLY INPUT GROUND PROTECT CAL POS BUS SUPPLY Figure 3 8 C ASIC Block Diagram LF input The LF input pin 42 is connected to a LF decade attenuator in voltage mode or to a high impedance buffer for resistance and capacitance measurements The LF decade attenuator consists of an amplifier with switchable external feedback resistors R131 to R136 Depending on the selected range the LF attenuation factor which will be set to 1 10 100 1000 10 000 The C ASIC includes a LF pre amplifier with switchable gain factors for the 1 2 5 steps HF input not used for Input 2 The HF component of the input signal is supplied to four external HF capacitive attenuators via C104 Depending on the required range the C ASIC selects and buffers one of the attenuator outputs 1 HFO 10 HF1 100 HF2 or 1000 HF3 By attenuating the HF3 input internally by a factor 10 the C ASIC can also create a 10000 attenuation factor Inputs of not selected input buffers are internally shorted To control the DC bias of the buffers inputs their output voltage is fed back via an internal feed back resistor and external resistors R115 R111 R120 R112 R113 and R114 The i
122. built up from a single period of the input signal Random repetitive equivalent sampling TRIGDT signal For time base settings below 1 us d the time between two successive pixels on the screen is smaller than the time between two successive samples For example at 20 ns d the time between two pixels is 20 25 0 8 ns and the sample distance is 40 ns sample rate 25 MHz A number of sweeps must be taken to reconstruct the original signal see Figure 3 11 As the samples are taken randomly with respect to the trigger moment the time dt must be known to position the samples on the correct LCD pixel The TRIGDT signal is a measure for the time between the trigger and the sample moment dt The pulse duration of the TRIGDT signal is approximately 4 us 20 us 3 21 43 Service Manual 3 22 3 13 dl SAMPLES SWEEP 1 4 14 i d SAMPLES SWEEP 2 PIXEL EN EN 1 2 3 4 5 6 7 8 9 10 11 2 13 14 15 16 Figure 3 11 Random Repetitive Sampling Mode DACTEST output A frequency detector in the T ASIC monitors the ALLTRIG signal frequency If the frequency is too high to obtain a reliable transmission to the D ASIC the DACTEST output pin 29 will become high The DACTEST signal is read by the D ASIC via the slow ADC on the Power part It and indicates that the D ASIC cannot use the ALLTRIG signal e g for qualified triggering Current Sourc
123. directional SDA SCL serial bus pin 56 57 is used to send control data to the C ASIC s e g change attenuation factor and the T ASIC e g select other trigger source The SDA line transmits the data bursts the SCL line transmits the synchronization clock 1 25 MHz Probe Detection Via the probe detection inputs PROBE A and PROBE B pin 54 55 the D ASIC detects if the Input 1 and 2 probes have been connected disconnected The SUPPRDET signal pin 99 can suppress the probe detection If this signal is low The PROBE A and PROBE B lines are permanently low via R471 R472 regardless of a probe is connected or not connected This function is used in all appropriate modes except the SCOPE mode TXD RXD Serial Interface Optical Port 3 27 43 Service Manual 3 28 The optical interface output is directly connected to the TXD line pin 86 The optical input line is buffered by the P ASIC on the power part The buffered line is supplied to the RXD input pin 87 The serial data communication RS232 is controlled by the D ASIC Slow ADC Control SADC Bus The SELMUXO 2 pins 96 98 and SLOWADC pin 100 lines are used for measurements of various analog signals as described in Section 3 3 1 SLOW ADC BATIDENT The BATTIDENT line pin 90 is connected to R508 on the Power part and to a resistor in the battery pack If the battery is removed this is signaled to the D ASIC BATTIDENT line goes high MAINVAL
124. e A current source in the T ASIC supplies a DC current to the GENOUT output pin 1 The current is used for resistance and capacitance measurements It is adjustable in decades between 50 nA and 500 uA depending on the measurement range and is derived from an external reference current This reference current is supplied by the REFP reference voltage via R323 and R324 to input REFOHMIN pin 6 The SENSE input signal is the buffered voltage on Input 1 For capacitance measurements it is supplied to a clamp circuit in the T ASIC pin 59 The clamp circuit limits the positive voltage on the unknown capacitance to 0 45 V The protection circuit prevents the T ASIC from being damaged by a voltage applied to Input 1 during resistance or capacitance measurements If a voltage is applied a current will flow via PTC resistor R172 on the Input 1 part V358 V359 V353 V354 to ground The resulting voltage across the diodes is approximately 2V or 15V R354 R356 and V356 V357 limit the voltage on the T ASIC GENOUT output pin 1 The BOOTSTRAP output signal on pin 3 is the buffered GENOUT signal on pin 1 or the buffered SENSE signal on pin 59 It is supplied to the protection diodes via R352 R353 and to protection transistor V356 to minimize leakage currents On the ICAL output of the T ASIC pin 5 a copy of the output current on GENOUT is available The current is supplied to the Input 1 C ASIC via R144 As ICAL shows the same time temperature dri
125. e flatness after rising edge 0 596 after 4 us HF Gain AB CL 0609 25 V 25V HF Gain A CL 0612 50 V 50 V HF Gain A CL 0615 After starting the first step in this table cell these steps are done automatically 5 6 2 Delta T Gain Trigger Delay Time amp Pulse Adjust Input 1 Proceed as follows to do the calibrations Press to select calibration step Delta T CL 0700 IDLE 2 Connect the test tool to the 5500A as shown in Figure 5 4 5 9 43 Service Manual FLUKE 5500A CALIBRATOR ST8004 CGM Figure 5 4 5500A Scope Output to Input 1 3 Set the 5500A to source a 1V 1 MHz fast rising rise time lt 1 ns square wave SCOPE output MODE edge 4 Setthe 5500A to operate OPR 5 Press to start the calibration The Delta T gain Trigger Delay CL0720 and Pulse Adjust Input 1 CL0640 will be calibrated Wait until the display shows Pulse Adj A CL 0640 READY When you are finished set the 5500A to Standby 8 Continue at Section 5 6 3 5 6 3 Gain DMM Gain Volt Warning Dangerous voltages will be present on the calibration source and connection cables during the following steps Ensure that the calibrator is in standby mode before making any connection between the calibrator and the test tool Proceed as follows to do the Gain DMM calibration Press to select the first calibration step in Table 5 3 2 Connect the test tool to the 5500A as shown in Figure 5 5 Ca
126. e Microprocessor Flash EPROM and RAM control e Display control e Keyboard control ON OFF control e Miscellaneous functions as PWM signal generation SDA SCL serial data control Slow ADC control serial RS232 interface control buzzer control etcetera The D ASIC is permanently powered by the 3V3GAR voltage The P ASIC indicates the status of the 3V3GAR voltage via the VGARVAL line connected to D ASIC pin 89 If 3V3GAR is correct VGARVAL is high the D ASIC will start up and the D ASIC functions are operative regardless of the test tool is ON OFF status Analog to Digital Conversion For voltage and resistance measurements the Input 1 2 2 for voltage only signal is conditioned by the C ASIC to 150 mV d Zero and gain measurements are done to eliminate offset and gain errors The C ASIC output voltage is supplied to the Input 1 2 ADC D401 D451 pin 5 The ADC samples the analog voltage and converts it into an 8 bit data byte 00 07 The data are read and processed by the D ASIC see below ADC data Acquisition The sample rate depends on the sample clock supplied to pin 24 The sample rate is 5 or 25 MHz depending on the instrument mode The ADC input signal is sampled Circuit Descriptions 3 3 3 Detailed Circuit Descriptions on the rising edge of the sample clock The digital equivalent of this sample is available on the outputs DO D7 with a delay of 6 sample clock cycles The reference voltages REFADCT and REFA
127. e applicable circuit diagram Table 3 1 Fluke 43 Main Blocks Block Main Functions ASIC Circuit Diagram INPUT 1 Input 1 signal conditioning C hannel ASIC 000258 Figure 9 1 INPUT 2 Input 2 signal conditioning C hannel ASIC 000258 Figure 9 2 TRIGGER Trigger selection and conditioning T rigger ASIC 000257 Figure 9 3 Current source for resistance capacitance continuity and diode measurements AC DC input coupling and Q F relay control Voltage reference source DIGITAL Analog to Digital Conversion D igital ASIC 0002 Figure 9 4 Acquisition of ADC samples Micro controller uP ROM RAM Keyboard and LCD control POWER Power supply battery charger P ower ASIC OQ0256 Figure 9 5 LCD back light voltage converter Optical interface input All circuits except the LCD unit and the KEYBOARD are located on one Printed Circuit Board PCB called the MAIN PCB The ASIC s are referred to as C ASIC Channel ASIC T ASIC Trigger ASIC P ASIC Power ASIC and D ASIC Digital ASIC 3 2 1 Input 1 Input 2 Measurement Circuits The basic input signal for the Input 1 and Input 2 circuits hardware is voltage The reading of Input 1 is in milli Volts The reading of Input 2 is in Amperes So the voltage on Input 2 is assumed to be supplied by a current clamp From the measured voltage samples the readings are calculated by the instrument firmware For example power reading
128. e duty cycle to the PWM FILTERS circuit RC filters The outgoing APWM BUS Analog PWM provides analog signals of which the amplitude is controlled by the D ASIC These voltages are used to control e g the trace positions C ASIC the trigger levels T ASIC and the battery charge current P ASIC In random sampling mode Scope mode time base faster than 1 5 9 trace is built up from several acquisition cycles During each acquisition a number of trace samples are placed as pixels in the LCD The RANDOMIZE circuit takes care that the starting moment of each acquisition cycle trigger release signal HOLDOFF goes low is random 3 5 43 Service Manual This prevents that at each next acquisition the trace is sampled at the same time positions and that the displayed trace misses samples at some places on the LCD The D ASIC supplies control data and display data to the LCD module The LCD module is connected to the main board via connector X453 It consists of the LCD LCD drivers and a fluorescent back light lamp As the module is not repairable no detailed description and diagrams are provided The back light supply voltage is generated by the back light converter on the POWER part The keys of the keyboard are arranged in a matrix The D ASIC drives the rows and scans the matrix The contact pads on the keyboard foil are connected to the main board via connector X452 The ON OFF key is not included in the matrix but is sensed by
129. e on N501 pin 55 FLYSENSP For a correct converter this is a saw tooth voltage of 50 100 kHz 50 150 mVpp If sawtooth voltage is present on R501 current or a DC current flows in FET V554 The primary coil or V554 may be defective or interrupted connections Check R504 R506 R507 battery current sense resistors these resistors may be fused due to a short in FET V554 b Ifanincorrect sawtooth is present on R501 this can be caused by overloaded outputs Frequency low e g 50 kHz 250 mVpp underloaded outputs Frequency high e g 22100 kHz 100 mVpp bad FET V554 Sawtooth voltage is not linear 2 Check V552 and V553 check R570 and VCOIL connections b No FLYGATE square wave is present Check TP526 FREQPS for a 50 100 KHz 3 3 Vpp square wave If correct then check V552 and V553 If no square wave on TP526 then go to step 4 4 Check 528 PWRONOFF for 3V If not correct see 7 5 13 Power ON OFF 5 Check N501 pin 43 COSC for a triangle waveform 50 100 kHz 1 6V to 3 2V If not correct check C553 and connections check IREF see step 6 If all correct replace N501 6 Check N501 pin 74 IREF for 1 6V If not correct a Check N501 pin 73 2 for 3V3 REFPWM2 is supplied by N501 and derived from REFP on the reference circuit on the Trigger part Check TP307 N501 pin 72 REFP for 1 22V If not correct check V301 R307 b Check 528 loose pin 74 or
130. e slowly in 0 1 V steps using the 5500A EDIT FIELD function until the test tool is triggered and the traces are shown 43 Service Manual 4 12 17 Verify that the 5500A voltage is between 1 5V and 2 5V when the test tool is triggered To repeat the test start at step 12 18 When you are finished set the 5500A to Standby 4 5 6 Input 2 Trigger sensitivity Test Proceed as follows to test the Input 2 trigger sensitivity l 2 Connect the test tool to the 5500A as for the previous test shown in Figure 4 3 Select the AUTO test tool setup e Press co to select the MENU e Press e till SCOPE is highlighted e Press to select SCOPE mode Make Input 2 active e Press to select menu SCOPE SETUP e Press to select Input 2 READING e Press e to highlight AC DCrms e Press to confirm O mark changes to e Press to highlight Input 2 Coupling e Press to select the Input 2 Coupling menu e Press to highlight DC Coupling e Press to confirm L mark changes to e Press to return to SCOPE Select trigger on channel 2 e Short circuit Input 1 with a BB120 and a 500 feed through piece e the 5500A to source 5 kHz leveled sine wave of 50 mV NORMAL output MODE wave sine Select the following test tool setup e Press to select RANGE 2 e Press to select 200A d Press 20 to select a timebase of 50 us d Verify that the signal is well triggered if necessary adjust the trigger level
131. e the offset in the LF path of the C ASIC The REFN line provides a negative bias voltage via R152 to create the correct voltage swing level on the C ASIC POS input Circuit Descriptions 3 3 Detailed Circuit Descriptions 3 DACTEST output pin 24 As described above the DACTEST output is used for signaling a ground protect error It can also be used for testing purposes Furthermore the DACTEST output provides a C ASIC reset output signal 1 75 V after a power on ADDRESS output pin 23 The output provides a replica of the input voltage to the SENSE line via R165 In capacitance mode the sense signal controls the CLAMP function in the T ASIC See Section 3 3 3 TRACEROT input pin 31 The TRACEROT signal is supplied by the T ASIC It is a triangle sawtooth voltage SDAT SCLK Control information for the C ASIC e g selection of the attenuation factor is sent by the D ASIC via the SDA data line The SCL line provides the synchronization clock signal Input 1 Voltage Measurements The input voltage is applied to the HF attenuator inputs of the C ASIC via C104 and to the LF input of the C ASIC via R101 R102 AC DC input coupling relay K171 and R104 The C ASIC conditions the input voltage to an output voltage of 50 mV d This voltage is supplied to the ADC on the Digital part The ADC output data is read and processed by the D ASIC and represented as a numerical reading and as a graphical trace Table 3 3 shows the relat
132. e uses REFPWM2 and IREF see 2 and 3 below 2 Check N501 pin 73 REFPWM2 for 3V3 REFPWM2 is supplied by the P ASIC Check TP307 N501 pin 72 REFP for 1 22V check V301 and R307 3 Check N501 pin 74 IREF for 1 61V If not correct possibly caused by R528 loose pin 74 or N501 defective Check 3 V3SADC N501 pin 65 for 3 3V 7 Check TP531 CHARCURR The CHARCURR signal controls the battery charge current If TP531 2 7V continue at step 7a If TP531 gt 2 7V continue at step 7b a Check if charger FET V506 is controlled by a z100 kHz 13 Vpp square wave on TP502 FET gate If correct check replace V506 If not correct check 1 N501 pin 4 TEMPHI relative to X503 pin 3 501 pin 9 for 200 mV If not correct check R512 and connections 2 N501 pin 5 TEMP relative to X503 pin 3 ZN501 pin 9 for 400 500 mV at about 20 C If not correct check the NTC in the battery pack for x12 KQ at 20 C X503 pins 3 and 5 check connections to N501 3 N501 pin 6 IMAXCHA for 150 mV If not correct check R514 and connections to N501 4 01 pin 7 VBATHIGH for 1 2V If not correct check R513 and connections to N501 Steps 1 to 4 verify that N501 supplies a 47 current to each of the resistors R512 battery NTC R514 and R513 5 Check N501 pin 9 for the same voltage as on X503 pin 3 sense resistors R504 R506 and R507 6 If 1 to 5 above correct then 01 is defective Connect TP531
133. ed a n nee ee 6 3 6 2 2 Removing the Battery Pack eese 6 3 6 2 3 Removing the 6 3 6 2 4 Opening the Test ete ettet te teet tee tenere 6 3 6 2 5 Removing the 6 5 6 2 6 Removing the Display 6 6 6 2 7 Removing the Keypad and Keypad Foil 6 6 6 3 Disassembling the Main PCA 6 6 6 4 Reassembling the Main PCA 6 8 6 5 Reassembling the Test 1 6 8 Corrective Maintenance 7 1 Tl Introductionis iei E eR ERR asa 7 3 7 2 Starting Fault Einding uui sees secede RIGHE 7 4 T3 Charger GITGUIE 2 Wawa asa 7 4 7 4 Starting with a Dead Test Tool essere 7 6 7 4 1 Test Tool Completely Dead eene 7 6 7 4 2 Test Tool Software Does not 7 1 7 4 3 Software Runs Test Tool not Operative 2 222 221 7 1 7 2 Miscellaneous Eunctions erect ran s 7 1 7 5 1 Display and Back 7 1 7 52 Fly Back Converter eed diee des 7 8 1 5 9 S 0W ADE ete Decent eene em et en et test ee uen 7 9 15 4 eee ne 7 10 7 5 5 Optical Port Serial RS232 Interface
134. een image Keyboard Control ON OFF Control The Keys are arranged in a 6 rows x 6 columns matrix If a key is pressed the D ASIC drives the rows and senses the columns The ON OFF key is not included in the matrix This key toggles a flip flop in the D ASIC via the ONKEY line D ASIC pin 72 As the D ASIC is permanently powered the flip flop can signal the test tool on off status PWM Signals The D ASIC generates various pulse signals by switching a reference voltage or REFPWM with software controllable duty cycle PWMA PWMB pins 26 40 By filtering the pulses in low pass filters RC software controlled DC voltages are generated The voltages are used for various control purposes as shown in Table 3 6 Table 3 6 D ASIC PWM Signals PWM signal Function Destination Reference HO RNDM HOLDOFF randomize control R487 of RANDOMIZE circuit REFPWM1 TRGLEV1D Trigger level control T ASIC REFPWM1 TRIGLEV2D POS AD POS BD Input 1 B position control C ASIC REFPWM1 OFFSETAD Input 1 B offset control C ASIC REFPWM 1 OFFSETBD BACKBRIG Back light brightness control Back light converter POWER part REFPWM1 CONTR D Display contrast control LCD unit REFPWM1 SADCLEVD S ADC comparator voltage SLOW ADC POWER part REFPWM2 CHARCURD Battery charge current control P ASIC REFPWM2 SDA SCL Serial Bus The uni
135. els for the LCD drivers outputs to drive the LCD The various levels are supplied to the driver outputs depending on the supplied data and the M ultiplex signal The M signal back plane modulation is used by the LCD drivers to supply the various DC voltages in such an order that the average voltage does not contain a DC component A DC component in the LCD drive voltage may cause memory effects in the LCD The LCD contrast is controlled by the CONTRAST voltage This voltage is controlled by the D ASIC which supplies a PWM signal pin 37 CONTR D to PWM filter R436 C436 voltage REFPWMI is used as bias voltage for the contrast adjustment circuit on the LCD unit To compensate for contrast variations due to temperature Circuit Descriptions 3 3 3 Detailed Circuit Descriptions variations a temperature dependent resistor is mounted in the LCD unit It is connected to the LCDTEMPI line The resistance change which represents the LCD temperature is measured by the D ASIC via the S ADC on the POWER part The back light lamp is located at the left side of the LCD so this side becomes warmer than the right side As a result the contrast changes from left to right To eliminate this unwanted effect the CONTRAST control voltage is increased during building up a screen image A FRAME pulse starts the new screen image The FRAME pulse is also used to discharge C404 After the FRAME pulse the voltage on C404 increases during building up a scr
136. elta T circuit The ALLTRIG signal includes all triggers It is used by the D ASIC for signal analysis during AUTOSET Traditionally a small trigger gap is applied for each the trigger level In noisy signals this small gap triggering would lead to unstable displaying of the wave form if the noise is larger than the gap The result is that the system will trigger randomly This problem is solved by increasing the trigger gap TRIGLEV1 TRIGLEV2 automatically to 80 10 to 90 of the input signal peak to peak value This 80 gap is used in AUTOSET Note The ALLTRIG signal is also used for capacitance measurements S 3 3 2 The Synchronize Delta t part provides an output pulse TRIGDT The front edge of this pulse is the real trigger moment The pulse width is a measure for the time between the trigger moment and the moment of the first sample after the trigger This pulse width information is required in random repetitive sampling mode see below The HOLDOFF signal supplied by the D ASIC releases the trigger system The sample clock SMPCLK also provided by the D ASIC is used for synchronization Real time sampling TRIGDT signal For time base settings of 1 us d and slower the pixel distance on the LCD is 240 ns 1 division is 25 pixels As the maximum sample rate is 25 MHz a sample is taken each 40 ns So the first sample after a trigger can be assigned to the first pixel and successive samples to each next pixel A trace can be
137. entered when the test tool is powered by the power adapter and is turned on The FLY BACK CONVERTER is on the CHARGER CONVERTER supplies the primary current If batteries are installed they will be charged In this mode a battery refresh see below can be done Operational mode The Operational mode is entered when the test tool is powered by batteries only and is turned on The FLY BACK CONVERTER is on the batteries supply the primary current If the battery voltage VBAT drops below 4V when starting up the fly back converter the Off mode is entered Battery Refresh Each 3 months the batteries need a deep discharge full charge cycle called a refresh This prevents battery capacity loss due to the memory effect A refresh cycle takes 16 hours maximum depending on the battery status A refresh can be started via the keyboard gt gt I gt INSTRUMENT SETUP gt START BATTERY REFRESH GB if the test tool is on and the power adapter is connected During a refresh first the batteries are completely discharged and then they are completely charged again 3 7 43 Service Manual VGARVAL L ME Idle mode VGARVAL H Off mode TURN ON or MAINVAL H een Flash ROM Mask StartUp m OK isis 25 TURN OFF Flash ROM OK amp TURN ON Extern StartUp MAINVAL L amp TURN OFF or BATTVOLT 4V Software TURN ON amp BATTVOLT 4 amp MAINVAL L TURN OFF amp MAI
138. er Adapter is present serial communication is always possible even when the test tool is off Backlight Converter The LCD back light is provided by a 22 4 mm fluorescent lamp in LCD unit The back light converter generates the 300 400 Vpp supply voltage The circuit consist of A pulse width modulated PWM buck regulator to generate a variable regulated voltage V600 V602 L600 C602 Azero voltage switched ZVS resonant push pull converter to transform the variable regulated voltage into a high voltage AC output V601 T600 The PWM buck regulator consists of FET V600 V602 L600 C602 and a control circuit in N600 FET V600 is turned on and off by a square wave voltage on the COUT output of N600 pin 14 By changing the duty cycle of this signal the output on C602 provides a variable regulated voltage The turn on edge of the COUT signal is synchronized with each zero detect Outputs AOUT and BOUT of N600 provide complementary drive signals for the push pull FETs V601a b dual FET If V601a conducts the circuit consisting of the primary winding of transformer T600 and C608 will start oscillating at its resonance frequency After half a cycle a zero voltage is detected on pin 9 ZD of N600 V601a will be turned off and V601b is turned on This process goes on each time a zero is detected The secondary current is sensed by R600 R604 and fed back to N600 pin 7 and pin 4 for regulation of the PWM buck regulator outpu
139. ering Code 1 top case assembly Fluke 43 5322 442 01494 2 shielding foil 5322 466 11434 3 dust seal 5322 466 11435 4 conductive foam strip 5322 466 11436 5 display shielding bracket 5322 402 10204 6 display assembly 5322 135 00029 7 keypad 5322 410 11952 8 keypad foil 5322 276 14006 9 keyboard pressure plate 5322 466 10963 10 combiscrew M3x10 5322 502 21507 11 bottom case 5322 442 00273 12 combiscrew M3x10 5322 502 21507 13 battery pack BP120 14 battery door 5322 443 10237 15 combiscrew M3x10 5322 502 21507 16 bail 5322 466 10975 A main PCA unit assembly No firmware loaded 5322 216 04605 Not calibrated 8 4 54 9 374 Note The test tool contains a Nickel Cadmium battery item 13 Do not mix with the solid wastestream Spent batteries should be disposed of by a qualified recycler or hazardous materials handler List of Replaceable Parts 8 8 3 Final Assembly Parts 578562 578562 Figure 8 1 Fluke 43 Final Assembly 8 5 43 Service Manual 8 4 Main PCA Unit Parts See Table 8 2 and Figure 8 2 for the Main PCA Unit parts Table 8 2 Main PCA Unit Item Description Ordering Code 1 screw M2 5x5 5322 502 21206 2 combiscrew M3x10 5322 502 21507 3 insulator for power input 5322 325 10163 5 main PCA shielding box 5322 466 10976 6 guide piece for optical gate LEDs 5322 256 10201 7 main PCA shielding plate 5322 466 109
140. ersion 3 9 16 viii Chapter 1 Safety Instructions Title Page 1 1 Introduction cr u eb ve deeds 1 3 I 2 satety Precautions o e tee eene uen eren a 1 3 1 3 Caution and Warning Statements eese 1 3 eee a ee org ee eee 1 3 1 3 Impaired Safety ee a 1 4 1 6 General Safety 1 4 Safety Instructions 1 1 1 Introduction 1 1 Introduction Read these pages carefully before beginning to install and use the instrument The following paragraphs contain information cautions and warnings which must be followed to ensure safe operation and to keep the instrument in a safe condition Warning Servicing described in this manual is to be done only by qualified service personnel To avoid electrical shock do not service the instrument unless you are qualified to do so 1 2 Safety Precautions For the correct and safe use of this instrument it is essential that both operating and service personnel follow generally accepted safety procedures in addition to the safety precautions specified in this manual Specific warning and caution statements where they apply will be found throughout the manual Where necessary the warning and caution statements and or symbols are marked on the instrument 1 3 Caution and Warning Statements Caution Used to indicate correct operating or maintenance procedures to prevent damage to o
141. for a short time max 1 minute to ground and see if the FET gate TP502 now shows a 100 kHz pulse signal If it does not continue at step 7d If it does the CHARCURR control signal is not correct continue at step 7c Check the CHARCURR control signal The CHARCURR voltage on TP531 is controlled by a pulse width modulated voltage CHARCUR from the D ASIC D471 pin 40 The D ASIC measures the required signals needed for control via the Slow ADC 43 Service Manual Check the SLOW ADC see 7 5 3 2 Check VGARVAL N501 pin 64 for 3 3V If not correct check if the line is shorted to ground If it is not then replace N501 3 Trace the CHARCURR signal path to R534 R 442 and D471 D ASIC output pin 40 d Check the following 1 C506 and connections to N501 2 Connections between V506 and N501 pin 16 CHAGATE 3 The voltage at TP501 N501 pin 19 VCHDRIVE for 15 20V 4 The voltage at N501 pin 43 for a triangle waveform 80 100 kHz 1 6V to 3 2V 5 If1to4 correct then replace 501 7 4 Starting with a Dead Test Tool If the test tool cannot be turned on when powered by a charged battery pack or by the power adapter follow the stwmf below to locate the fault l 2 Connect a power adapter and a charged battery pack Turn the test tool on and listen if you hear a beep a If you hear no beep continue at 7 4 1 Test Tool Completely Dead b If you hear a weak beep continue at 7 4 2 Test
142. ft as the GENOUT measurement current it can be used for internal calibration of the resistance and capacitance measurement function Capacitor C356 is used for hum noise suppression Circuit Descriptions 3 3 3 Detailed Circuit Descriptions Reference Voltage Circuit This circuit derives several reference voltages from the 1 23 V main reference source 3 3V REFPWM2 73 I 1 23V R309 GAINPWM sereni GNDREF 3 3V R308 GAINREFN Treen R310 GAINADCB i R302 GAINADCT 52 1 6V i 151 REFATT 8 Figure 3 12 Reference Voltage Section The output of an amplifier in the P ASIC supplies a current to the 1 23 V reference source V301 R307 The 3 3 V REFPWM2 voltage is used as reference for the PWMB outputs of the D ASIC on the Digital part The 1 23 V voltage is used as main reference source for the reference circuit This circuit consists of four amplifiers in the T ASIC external gain resistors and filter capacitors Amplifier 1 and connected resistors supply the REFPWM1 reference voltage This voltage is a reference for the PWMA outputs of the D ASIC on the Digital section It is also used as reference voltage for the LCD supply on the LCD unit Amplifier 2 and connected resistors supply the 1 23 V REFN reference voltage used for the trigger level voltages TRIGLEV 1 amp 2 the C ASIC POS A
143. full scale Frequency 10 kHz 27 MHz 1 V div 5 V div Frequency 27 MHz 200 MHz 200 mV div 1 V div Frequency 200 MHz 1 GHz no visible disturbance Ranges not specified in Tables 2 and 3 may have a disturbance of more than 10 of full scale 2 10 Chapter 3 Circuit Descriptions Title Page 3 1 Introd cti n ses es eden ee eee 3 3 5 2 Block Diagram 3 3 3 2 1 Input 1 Input 2 Measurement Circuits eese 3 3 3 2 2 ATS Ser ee ena ee eee 3 5 3 2 3 Digital CIHICUN oet dede dede 3 5 3 2 4 Power CIE CUL emit e n n teta 3 6 3 2 5 Start up Sequence Operating Modes 3 7 3 3 Detailed Circuit 3 9 3 3 T Power Carcuit ie eee enini 3 9 3 3 2 Input 1 Input 2 Measurement Circuits 3 15 3 3 3 Trigger TIRE Pe Ue dd 3 20 323 4 Digital iicet eee ente e tee 3 24 43 Service Manual 996 15 TVLIDIG OL Sna oqvs 1231535 SNE WMdY
144. functions with LF the HF path of Input 1 is disabled which results in a 15 kHz bandwidth for both Input channels Miscellaneous Control of the C ASIC e g selecting the attenuation factor is done by the D ASIC via the SDAT and SCLK serial communication lines Circuit Descriptions 3 2 Block Diagram An offset compensation voltage and a trace position control voltage are provided by the D ASIC via the APWM bus The C ASIC s also provide conditioned input voltages on the TRIG A TRIG B line One of these voltages will automatically be selected as trigger source by the T ASIC 3 2 2 Trigger Circuit The T ASIC selects one of the possible trigger sources TRIG A Input 1 or TRIG B Input 2 For triggering on transients the selected trigger source signal is processed via the high pass Trigger Filter TVOUT TVSYNC lines Two adjustable trigger levels are supplied by the D ASIC via the PWM FILTERS TRIGLEV1 and TRIGLEV2 line Depending on the selected trigger conditions source level edge mode the T ASIC generates the final trigger signal TRIGDT which is supplied to the D ASIC The TRIG A input is also used for capacitance measurements see Section 3 2 1 The T ASIC includes a constant current source for resistance and capacitance measurements The current is supplied via the GENOUT output and the Q F relays to the unknown resistance Rx or capacitance Cx connected to Input 1 The SENSE signal senses the voltage across
145. h the contacts or wear gloves A contaminated PCA may not cause immediate instrument failure in controlled environments Failures typically show up when contaminated units are operated in humid areas 6 3 Main PCA Unit Assembly ST8015 CGM 6 7 43 Service Manual 6 4 Reassembling the Main PCA Unit Reassembling the main is the reverse of disassembly However you must follow special precautions when reassembling the main PCA unit 1 Ensure the input banana jacks have the rubber sealing ring in place Input 1 2 item 9 COM input item 10 see Figure 4 6 Do not forget to install the power connector insulator item 3 and the LED holder item 6 Notice the correct position of the shielding box main PCA notice the shielding plates on the PCA and shielding plate as shown in Figure 6 2 The tabs of the shielding plate must be inside both shields 6 5 Reassembling the Test Tool Reassembling the test tool is the reverse of disassembly However you must follow special precautions when reassembling the test tool Refer also to figure 6 1 Reassembling procedure for a completely disassembled unit 1 10 11 Clean the inside of the lens with a moist soft cloth if necessary Keep the lens free of dust and grease Install the keypad Press the edge of the keypad into the sealing groove of the top case Ensure that the keypad lays flat in the top case and that all keys are correctly
146. he calibration adjustments up to and including 100 For the higher values the 5500A will turn off the COMP 2 wire mode Set the 5500A to operate OPR Press to start the calibration Wait until the display shows the calibration status READY ON OUS E Press to select the next calibration step set the 5500A to the next calibration point and start the calibration Continue through all calibration points When you are finished set the 5500A to Standby 9 Continue at Section 5 6 6 99 Table 5 4 Ohm Gain Calibration Points Cal Step Input Value Gain Ohm CL 0860 Cap Pos CL 0920 Cap Neg CL 0921 100 Q Gain Ohm CL 0861 Cap Pos CL 0922 Cap Neg CL 0923 1kQ Gain Ohm CL 0862 CL 0924 Cap Neg CL 0925 10 KQ Gain Ohm CL 0863 Cap Pos CL 0926 Cap Neg CL 0927 100 Gain Ohm CL 0864 1 MO Gain Ohm CL 0865 Gain Ohm CL 0866 10 MQ 9 The capacitance measurement current calibrations Cap Pos and Cap Neg done automatically after the Gain Ohm calibration The Gain Ohm CL0866 calibration step is done automatically after the Gain Ohm CL0865 calibration 5 6 6 Capacitance Gain Low and High Proceed as follows to do the Capacitance Gain calibration 1 Press to select calibration adjustment step Cap Low CL 0900 IDLE 2 Connect the test tool to the 5500A as shown in Figure 5 8 5 13
147. hed set the 5500A to Standby 4 6 4 Capacitance Measurements Test Proceed as follows 1 55 00 en Connect the test tool to the 5500A as for the previous test see Figure 4 7 Ensure that the 5500A is in Standby Select OHMS CONTINUITY CAPACITANCE e Press MENU to select the main MENU e Press to highlight OHMS CONTINUITY CAPACITANCE e Press to select the item Press to select CAPACITANCE Set the 5500A to the first test point in Table 4 9 Use the 5500A COMP OFF mode Observe the Input 1 main reading and check to see if it is within the range shown under the appropriate column Continue through the test points When you are finished set the 5500A to Standby Remove all test leads from the test tool to check the zero point Observe the Input 1 reading and check to see if it is between 00 00 and 00 10 nF When you are finished set the 5500A to Standby 4 27 43 Service Manual Table 4 9 Capacitance Measurement Verification Points 5500A output Reading 40 nF 39 10 to 40 90 300 nF 293 0 to 307 0 3 uF 2 930 to 3 070 30 uF 29 30 to 30 70 300 uF 293 0 to 307 0 0 0 00 to 0 10 remove test tool input connections see steps 7 10 4 7 Inrush Current Proceed as follows to test the INRUSH CURRENT 1 Connect the test tool to the 5500A as shown in Figure 4 8 FLUKE 5500A CALIBRATOR PM9091 001 1 5m PM9092 001 0 5m PM9081 Figure 4
148. hown in Figure 4 9 2 Press 3 Press to highlight SAGS amp SWELLS 4 Press to enter mode Now the RECORD TIME is highlighted If the time is not 4 minutes then 1 Press 2 Press to highlight 4 minutes 3 Press to confirm L mark changes to 4 29 43 Service Manual 5 6 7 8 9 Set the 5500A to source a sine wave of 5V 60Hz NORMAL output MODE wave sine Press to highlight START Press After approximately 30 seconds press Press 20 and move the cursor into the measured region Check the readings MAX V zz MIN of Input 1 is between 4 80 and 5 20 10 Check the readings MAX AT MIN of Input 2 is 4 80 and 5 20 11 When you are finished set the 5500A to Standby 4 9 Harmonics Proceed as follows to test HARMONICS 1 2 u oot gt SS Connect the test tool to the 5500A as for the previous test shown in Figure 4 9 Press Press to highlight HARMONICS Press to select HARMONICS Set the 5500A to source a square wave 2 5V 60Hz NORMAL output WAVE square Check the bargraphs of VOLTS look like the ones in Figure 4 10 Press to enter the AMPS mode Check the bar graph look like the one in Figure 4 11 When you are finished set the 5500A to Standby 4055 12410 1 5 9 13 17 21 25 29 33 37 41 45 49 1 5 9 13 17 2125 29 33 37 41 45 49 AMPS WATTS Figure 4 10 Bargraph Harmonics Volt Figure 4 11 Bargraph Harmonic
149. ight the Input 2 READING Press to select Input 2 READING Press gt to highlight AC DCrms Press confirm O mark changes to Press amp gt to highlight Input 2 Coupling Press to select the Input 2 Coupling menu Press gt to highlight DC Coupling Press 8 to confirm O mark changes to Press to return to SCOPE Select trigger on channel 2 e Short circuit Input 1 with a BB120 and a 500 feed through terminator e Set the 5500A to source 1V 50 Hz sine wave NORMAL output MODE WAVE sine Select the following test tool setup e Press to select RANGE then press to select RANGE 2 Press amp gt to select 1 KA d e Press ai 0 to select a timebase of 10 ms d e Press e Press to select TRIGGER Using amp gt set the trigger level to 2 divisions from the screen center For positive slope triggering the trigger level is the top of the trigger icon J Set the 5500A to source 0 4V DC e Press to select menu SCOPE SETUP Press gt to highlight Time base Performance Verification 4 5 Input 1 and Input 2 Tests in the SCOPE MODE 10 Press to clear the display 12 11 13 14 15 16 Press 8 select the TIME BASE menu e Press to select SINGLE Press to confirm L mark changes to e Press eS to highlight Trigger slope e Press to select the TRIGGER SLOPE menu e Press to highlight positive trigger
150. indings to ground If the windings are empty all energy transferred the voltage VCOIL sensed by the P ASIC pin 52 is zero and the FLYGATE signal will turn FET V554 on again Primary current V554 ON FLYGATE SIGNAL V554 OFF Figure 3 5 Fly Back Converter Current and Control Voltage The output voltage is regulated by feeding back a part of the 3V3A output voltage via R552 R553 R554 to pin 54 VSENS This voltage is referred to a 1 23 V reference voltage Any deviation of the 3V3A voltage from the required 3 3V changes the current level at which current FET V554 will be switched off If the output voltage increases the current level at which V554 is switched off will become lower and less energy is transferred to the secondary winding As a result the output voltage will become lower An internal current source supplies a current to R559 The resulting voltage is a reference for the maximum allowable primary current IMAXFLY The voltage across the sense resistor FLYSENSP is compared to the IMAXFLY voltage If the current exceeds the set limit FET V554 will be turned off Another internal current source supplies a current to R558 This resulting voltage is a reference for the maximum allowable output voltage VOUTHI The 3V3A output voltage is attenuated and level shifted in the P ASIC and then compared to the VOUTHI voltage If the 3V3A voltage exceeds the set limit FET V554 will be turned off The FREQ
151. ion between the Input 1 reading range V and the trace sensitivity V d in the Scope mode The selected trace sensitivity determines the C ASIC attenuation gain factor The reading range is only a readout function it does not change the hardware range or the wave form display Table 3 3 Input 1 Voltage Ranges And Trace Sensitivity range 50mV 50mV 50 500 500 500 5V trace div 5 mV 10mV 20 mV 50 mV 100 200 500 1V mV mV mV 50V 50V 90V 500V 500V 500 1250V trace div 2V SV 10V 20V 50V 100V 200V 500V During measuring input voltage measurements gain measurements and zero measurements are done As a result the voltage supplied to the ADC is a multiplexed zero reference reference input voltage signal In ROLL mode however no gain and zero measurements are done Now the ADC input voltage includes only the conditioned input voltage The input voltage is connected to Input 1 The shield of the input is connected to system ground L via a PTC ground protection resistor If a voltage is applied between the Input 1 and Input 2 ground shield or between one of these ground shields and the black COM input the PTC resistor will limit the resulting current The voltage across the PTC resistor is supplied to the C ASIC GPROT input and causes a ground error warning high voltage level on output pin 24 DA
152. ition point 1 2 Connect the test tool to the 5500A as for the previous test see Figure 4 5 Select the AUTO test tool setup Press MENU to select the MENU Press 2 till SCOPE is highlighted Press to select SCOPE mode Select AC coupling amp reading for Input 1 and 2 Press to select menu SCOPE SETUP Press to select Input 1 READING Press to highlight ACrms Press to confirm L mark changes to Press S to highlight Input 1 Coupling Press to select the Input 1 Coupling menu Press S to highlight AC Coupling Press to confirm L mark changes to Press select Input 2 READING Press to select the Input 2 READING Press e to highlight ACrms Press to confirm L mark changes to 4 19 43 Service Manual 4 20 e Press o to highlight Input 2 Coupling e Press to select the Input 2 COUPLING e Press e to highlight AC Coupling e Press to confirm L mark changes to e Press to return to SCOPE 4 Set the 5500A to source an AC voltage to the first test point in Table 4 4 NORMAL output WAVE sine 5 Observe the Input 1 and Input 2 main reading and check to see if it is within the range shown under the appropriate column Continue through the test points When you are finished set the 5500A to Standby Table 4 4 Input 1 and 2 AC Input Coupling Verification Points 5500A output V rms 5500A Frequency Reading 1 Reading 2 500 0 mV 10 Hz
153. ity 20 00000011 4 6 4 5 2 Input 1 Frequency Response Upper Transition Point Test 4 7 4 5 3 Input 1 Frequency Measurement Accuracy Test 4 7 4 5 4 Input 2 Frequency Measurement Accuracy Test 4 9 4 5 5 Input 2 Trigger Level and Trigger Slope Test 4 10 4 5 6 Input 2 Trigger sensitivity 05 4 12 4 5 7 Input 1 Trigger Level and Trigger Slope 4 13 4 5 8 Input 1 and 2 DC Voltage Accuracy Test 4 15 4 5 9 Input 1 and 2 AC Voltage Accuracy 4 17 4 5 10 Input 1 and 2 AC Input Coupling 4 19 4 5 11 Input 1 and 2 Volts Peak Measurements Test 4 20 4 5 12 Input 1 and 2 Phase Measurements Test 4 21 4 5 13 Input 1 and 2 High Voltage amp DC Accuracy Test 4 22 4 6 1 4 25 4 6 1 Resistance Measurements 4 25 4 6 2 Diode Test Function 4 26 4 6 3 Continuity Function eren 4 27 4 6 4 Capacitance Measurements 02 4 27 2 7 3 52 sm
154. k changes to e Press to return to SCOPE Select the appropriate sensitivity for the test tool Press select RANGE 1 or RANGE 2 e Press to select RANGE 1 or press to select RANGE 2 Press to select the ranges mentioned in the table Select the timebase setting for the test tool e Press when RANGE RANGE 1 or RANGE 2 is not highlighted Press to select Set the 5500A to source the appropriate AC voltage Observe the Input 1 and Input 2 main reading and check to see if it is within the range shown under the appropriate column Continue through the test points Performance Verification 4 5 Input 1 and Input 2 Tests in the SCOPE MODE 9 When you are finished set the 5500A to Standby Table 4 3 Volts AC Measurement Verification Points Sensitivity Time 5500A output 5500A Reading 1 amp 2 base Volts rms Frequency Input 1 Input 2 Input 1 Input 2 200 mV div 200A div 10 ms d 500 mV 60 Hz 494 0 to 506 0 494 0 to 506 0 20 wd 500 mV 20 kHz 486 0 to 514 0 2V div 2kA div 20 w d 5V 20 kHz 4 860 to 5 140 10 ms d 5V 60 Hz 4 940 to 5 060 4 940 to 5 060 20V div 20kA div 10 ms d 50V 60 Hz 49 40 to 50 60 49 40 to 50 60 20 w d 50V 20 kHz 48 60 to 51 40 The 500V and 1250V range will be tested in Section 4 5 14 4 5 10 Input 1 and 2 AC Input Coupling Test Proceed as follows to test the Input 1 and 2 AC coupled input lower trans
155. l Select the following test tool setup e Press to select menu SCOPE SETUP e Press S to highlight Input 1 coupling e Press to select the Input 1 coupling menu e Press amp to highlight DC Coupling e Press to confirm L mark changes to e e Press e to highlight Input 1 Reading e Press to go to Input 1 READING e Press S to highlight Hz e Press to confirm L mark changes to e Press to return to SCOPE Set the 55004 to source a leveled sine wave of 600 mV peak to peak SCOPE output MODE levsine Set the 5500A frequency according to the first test point in Table 4 1 Observe the Input 1 Reading on the test tool and check to see if it is within the range shown under the appropriate column Continue through the test points When you are finished set the 5500A to Standby Table 4 1 Input 1 Frequency Measurement Accuracy Test 4 8 5500A output 600 mVpp Input 1 Reading 1 MHz 0 98 to 1 03 MHz 10 MHz 09 7 to 10 3 MHz 40 MHz 38 8 to 41 2 MHz Note Duty Cycle and Pulse Width measurements are based on the same principles as Frequency measurements Therefore the Duty Cycle and Pulse Width measurement function will not be verified separately Performance Verification 4 5 Input 1 and Input 2 Tests in the SCOPE MODE 4 5 4 Input 2 Frequency Measurement Accuracy Test Proceed as follows to test the Input 2 frequency measurement accuracy 1 Connect the test
156. l SADCLEVD The comparator output SLOWADC is monitored by the D ASIC who knows now if the previous input voltage step caused the comparator output to switch By increasing the voltage steps the voltage level can be approximated within the smallest possible step of the SADCLEV voltage From its set SADCLEVD duty cycle the D ASIC knows voltage level of the selected input RS232 The optical interface enables serial communication RS232 between the test tool and a PC or printer The received data line RXDA P ASIC pin 75 is connected to ground via a 20 resistor in the P ASIC If no light is received by the light sensitive diode H522 the RXDA line is 200 mV which corresponds to a 1 3V on the RXD P ASIC output pin 76 line If light is received the light sensitive diode will conduct and the RXDA line goes low 0 0 6V which corresponds to a 0 on the RXD line The level on the RXDA line is compared by a comparator in the P ASIC to a 100 mV 3 13 43 Service Manual 3 14 level The comparator output is the RXD line which is supplied to the D ASIC for communication and for external triggering The D ASIC controls the transmit data line TXD If the line is low diode H521 will emit light The supply voltage for the optical interface receive circuit RXDA is the 3V3SADC voltage The 3V3SADC voltage is present if the test tool is turned on or if the Power Adapter is connected or both So if the Pow
157. l shows the display test pattern shown in Figure 4 1 at default contrast Observe the test pattern closely and verify that the no pixels with abnormal contrast are present in the display pattern squares Also verify that the contrast of the upper left and upper right square of the test pattern are equal Press The test pattern is removed the test tool shows Contrast CL 0120 MANUAL Press CAL The test tool shows a light display the test pattern as shown in Figure 4 1 may not be visible or hardly visible Observe the display closely and verify that no dark pixels are shown Press twice to turn the test tool OFF and ON to exit the calibration menu and to return to the normal operating mode 4 5 Input 1 and Input 2 Tests in the SCOPE MODE Before performing the Input 1 and Input 2 tests the test tool must be set in a defined state by performing a RESET Proceed as follows to reset the test tool Press to turn the test tool off Press and hold Press and release to turn the test tool on Wait until the test tool has beeped twice and then release When the test tool has beeped twice the RESET was successful Now you must select the SCOPE MODE Press to leave the STARTUP screen Press ee Press up down gt till SCOPE is highlighted Press to select SCOPE mode 4 5 43 Service Manual 4 6 4 5 1 Input 1 Trigger Sensitivity Test Proceed as follows to test the Input 1 trigger sensitivity 1
158. libration Adjustment 5 6 Final Calibration FLUKE 5500A CALIBRATOR A a E bi 55 re ha SU rd x 9081 9093 9091 001 1 5 9092 001 0 5 ST8001 ST8001 CGM Figure 5 5 Volt Gain Calibration Input Connections lt 300V Set the 5500A to supply a DC voltage to the first calibration point in Table 5 3 Set the 5500A to operate OPR Press to start the calibration Wait until the display shows calibration status READY SE VoU cuis Press to select the next calibration step set the 5500 to the next calibration point and start the calibration Continue through all calibration points of Table 5 3 8 Setthe 5500A to Standby and continue with step 9 Table 5 3 Volt Gain Calibration Points lt 300V Cal step Input value Gain DMM CL0800 12 5 mV Gain DMM CL0801 25 mV Gain DMM CL0802 50 mV Gain DMM CL0803 125 mV Gain DMM CL0804 250 mV Gain DMM CL0805 500 mV Gain DMM CL0806 1 25V Gain DMM CL0807 2 5V Gain DMM CL0808 5V Gain DMM CL0809 12 5V Gain DMM CL0810 25V Gain DMM 10811 50V set 5500A to OPR Gain DMM CL0812 125V Gain DMM CL0813 250V 9 Press to select calibration step Gain DMM CL0814 IDLE 5 11 43 Service Manual 10 Connect the test tool to the 5500A as shown in Figure 5 6 11 12 13 14 15 16 FLU
159. locks RE ue 3 3 3 2 Fluke 43 Operating ete teet 3 8 3 3 Input 1 Voltage Ranges And Trace Sensitivity 3 17 3 4 Ohms Ranges Trace Sensitivity and 2 3 18 3 5 Capacitance Ranges Current and Pulse Width eese 3 19 3 6 D ASIC PWM Signals u unun ee ee Re mer ee a 3 27 4 1 Input 1 Frequency Measurement Accuracy 4 8 4 2 Volts DC Measurement Verification Points 4 17 4 3 Volts AC Measurement Verification Points 4 19 4 4 Input 1 and 2 AC Input Coupling Verification Points 4 20 4 5 Volts Peak Measurement Verification 4 21 4 6 Phase Measurement Verification 4 22 4 7 V DC and V AC High Voltage Verification 2 222 22 4 25 4 8 Resistance Measurement Verification 4 26 4 9 Capacitance Measurement Verification Points 4 27 4 10 Volt AMPS HERZ verification 1 4 31 4 11 Power Measurement Verification 4 31 5 1 HF Gain Calibration Points Fast 5 9 5 2 Gain Calibration Points 510 5 9 5 3 Volt Gain Calib
160. n 59 of the D ASIC 3 25 43 Service Manual 3 26 The circuit D480 and related parts create a delay for the ROMWRITE enable signal This prevents the ROM write proces being disabled before all data have been written PCB version 3 up only Display Control The LCD unit includes the LCD the LCD drivers and the fluorescent back light lamp It is connected to the main board via connector X453 The LCD is built up of 240 columns of 240 pixels each 240x240 matrix The D ASIC supplies the data and control signals for the LCD drivers on the LCD unit Figure 3 13 FRAME Common Driver 81 160 X161 240 TOP Driver Din FRONTVIEW LCD LCDATO 3 DATACLKO LINECLK M PIXEL 0 0 Figure 3 13 LCD Control Each 14 ms the LCD picture is refreshed during a frame The frame pulse FRAME indicates that the concurrent LINECLK pulse is for the first column The column drivers must have been filled with data for the first column Data nibbles 4 bit are supplied via lines LCDATO LCDAT3 During 20 data clock pulses DATACLKO the driver for Y161 240 is filled When it is full it generates a carry to enable the driver above it which is filled now When a column is full the LINECLK signal transfers the data to the column driver outputs Via the common drivers the LINECLK also selects the next column to be filled So after 240 column clocks a full screen image is built up The LCD unit generates various voltage lev
161. ne 0 5 mA Detection te aka gt 1ms Capacitance Ranges e 50 00 nF to 500 0 uF 2 96 10 counts Max Measurement Current dett RIO GOES 0 5 mA Temperature Ranges C or F 100 0 to 400 0 C or 200 0 to 800 0 F 0 5 5 counts 2 3 4 Record Record times selectable necerais 4 min to 8 days endless 16 days Number of readings yl l or 2 simultaneously Record is available for the functions volts amps hertz power harmonics ohms continuity capacitance temperature scope 2 7 43 Service Manual 2 4 Miscellaneous Display Uselul Screen area cc e ee e ete eek eh ee hee 72 72 mm 2 83 x 2 83 in e a 240 x 240 pixels Cold Cathode Fluorescent CCFL IN Power External Power Adapter it PM8907 Input Voltage ar 2 en 10 to 21 V dc Er ese es me 5 W typical Internal Rechargeable Ni Cd battery BP120 Voltage range enin EIER HERREN 4 to 6 V dc Operating ddan 4 hours Charging 4 hours with Fluke 43 off 12 hours with Fluke 43 on Refresh Cycles ied tte ttt 8 to 14 hours Memory Number of screen 10 Number of transient memories temporary
162. nnected to the analog trigger input of the T ASIC TRIG A signal The T ASIC adjusts the pulse to an appropriate level and supplies it to the D ASIC via its ALLTRIG output The pulse width is measured and processed by the D ASIC and represented on the LCD as numerical reading There will be no trace displayed Circuit Descriptions 3 3 3 Detailed Circuit Descriptions pos clamp active ref clamp essor ee th2 th1 neg clamp active neg clamp active TRIG A Figure 3 9 Capacitance Measurement The T ASIC supplies a positive charge and a negative discharge current A measurement cycle starts from a discharged situation U 0 with a charge current After reaching the first threshold level th the pulse width measurement is started The dead zone between start of charge and start of pulse width measurement avoids measurement errors due to a series resistance of Cx The pulse width measurement is stopped after crossing the second threshold level th the completes the first part of the cycle Unlimited increase of the capacitor voltage is avoided by the positive clamp in the T ASIC The output of the high impedance buffer in the C ASIC supplies a replica of the voltage across Cx to output pin 23 ADDRESS Via R165 this voltage is supplied to a clamp circuit in the T ASIC SENSE pin 59 This clamp circuit limits the positive voltage on Cx to 0 45V Now the second part of the measurement is star
163. nternal feed back resistor and filter R110 C105 will eliminate HF feed back to obtain a 3 15 43 Service Manual 3 16 large HF gain The C ASIC includes a HF pre amplifier with switchable gain factors for the 1 2 5 steps The C ASIC also includes circuitry to adjust the gain and pulse response ADC output pin 27 The combined conditioned HF LF signal is supplied to the ADC output pin 27 via an internal ADC buffer The output voltage is 150 mV d The MIDADC signal pin 28 supplied by the ADC matches the middle of the C ASIC output voltage swing to the middle of the ADC input voltage swing TRIGGER output pin 29 The combined conditioned HF LF signal is also supplied to the trigger output pin 29 via an internal trigger buffer The output voltage is 100 mV d This signal TRIG A is supplied to the TRIGGER ASIC for triggering and for capacitance measurements For capacitance measurements the ADC output is not used but the TRIG A output pulse length indicates the measured capacitance see Capacitance measurements below GPROT input pin 2 PTC Positive Temperature Coefficient resistors R106 R206 are provided between the Input 1 and Input 2 shield ground and the COM input instrument ground This prevents damage to the test tool if the various ground inputs are connected to different voltage levels The voltage across the PTC resistor is supplied via the GPROT input pin 2 to an input buffer If this voltage exceeds 20
164. oow 500kA d 10 ms d 600V DC 0 592 to 0 608 10 ms d 600V DC 0 592 to 0 608 10 ms d 0V DC 0 005 to 0 005 Continue at test point 8 500V d 500kA d 50 us d 600V 10 kHz 0 570 to 0 630 10 ms d 600V 60Hz 0 584 to 0 616 0 584 to 0 616 200V d 200kA d 10 ms d 500V 60Hz 494 0 to 506 0 494 0 to 506 0 50 us d 500V 10 kHz 486 0 to 514 0 4 6 Ohms Continuity Capacitance 4 6 1 Resistance Measurements Test Proceed as follows 1 Connect the test tool to the 5500A as shown in Figure 4 7 FLUKE 5500A CALIBRATOR ST8003 CGM Figure 4 7 Test Tool Input 1 to 5500A Normal Output 4 Wire 4 25 43 Service Manual 4 26 Select OHMS CONTINUITY CAPACITANCE e Press to select the main MENU Press gt to highlight OHMS CONTINUITY CAPACITANCE e Press to select the item Set the 5500A to the first test point in Table 4 8 Use the 5500A COMP 2 wire mode for the verifications up to and including 50 kO For the higher values the 5500A will turn off the COMP 2 wire mode Observe the Input 1 main reading and check to see if it is within the range shown under the appropriate column Continue through the test points When you are finished set the 5500A to Standby Table 4 8 Resistance Measurement Verification Points 5500A output Reading 00 000 0 to 0
165. or the safety of the instrument may only be replaced by components obtained through your local FLUKE organization These parts are indicated with an asterisk in the List of Replaceable Parts Chapter 8 Chapter 2 Characteristics Title Page 2 Introduction ee ed eerte eee eee eicere 2 3 2 2 Safety Specifications e eet rte e ERR eR EUER ER CER EE RR EUER Ee kk 2 3 2 3 Function Specifications eorr recette eer en eee 2 4 2 3 1 Electrical 2 4 23 2 SCOPC iie ed eee re 2 5 2 3 3 NIS er uns suu maa TET 2 7 2 5 4 Record cuore eT eT el RSs 2 7 QA Miscellaneous e t e e RERO QR ERR RE eR RR T ERI elemen 2 8 2 5 Current Probe eee e eee te eee tee eere eode eoe aget eoe ds 2 8 2 6 Environmental 2 9 2 7 Electromiagnetic mrmunity 7 erectis eren 2 10 Characteristics 2 1 Introduction 2 1 Introduction Safety Characteristics The Fluke 43 has been designed and tested in accordance with Standards ANSI ISA 582 01 1994 EN 61010 1 1993 1010 1 CAN CSA C22 2 No 1010 1 92 including approval UL3111 1 including approval Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use This manual contains information and warnings that must be followed by the user to ensure safe operation and to keep the instrument in a safe condition Use of this equipment in a manner n
166. ot specified by the manufacturer may impair protection provided by the equipment Performance Characteristics FLUKE guarantees the properties expressed in numerical values with the stated tolerance Specified non tolerance numerical values indicate those that could be nominally expected from the mean of a range of identical ScopeMeter test tools Environmental Data The environmental data mentioned in this manual are based on the results of the manufacturer s verification procedures 2 2 Safety Specifications Safety Characteristics Designed and tested for measurements on 600 Vrms Category III Pollution Degree 2 in accordance with EN 61010 1 1993 IEC 1010 1 ANSI ISA 582 01 1994 CAN CS A C22 2 No 1010 1 92 including approval UL3111 1 including approval Installation Category III refers to distribution level and fixed installation circuits inside a building Maximum input voltage Input 1 and 2 Direct on inputs or with test leads 24 222 1 see Figure 2 1 T 600 Vrms 200 s RRGSSSRSSONNSGNNNBENONSNSUSSASENOBBRSA derating to 5 Vrms With Shielded Banana to BNC Adapter Plug BB120 see Figure 2 1 015400 eter ee ER EE eme 300 Vrms 43 Service Manual MAX INPUT VOLTAGE Vrms 1000 500 ITH BB120 200 100 50 20 10 5 2 1 0 01 0 02 0 05 0 1 0
167. parts for the model 43 ScopeMeter test tool Parts are listed by assembly alphabetized by item number or reference designator Each assembly is accompanied by an illustration showing the location of each part and its item number or reference designator The parts list gives the following information e Item number or reference designator for example R122 An indication if the part is subject to static discharge the symbol e Description e Ordering code Caution A symbol indicates a device that may be damaged by static discharge 8 2 How to Obtain Parts Contact an authorized Fluke service center To locate an authorized service center refer to the second page of this manual back of the title page In the event that the part ordered has been replaced by a new or improved part the replacement will be accompanied by an explanatory note and installation instructions if necessary To ensure prompt delivery of the correct part include the following information when you place an order e Instrument model Fluke 43 12 digit instrument code 9444 and serial number DM The items are printed on the type plate on the bottom cover e Ordering code e Item number Reference designator e Description e Quantity 8 3 43 Service Manual 8 3 Final Assembly Parts See Table 8 1 and Figure 8 1 for the Final Assembly parts Table 8 1 Final Assembly Parts Item Description Ord
168. r IDLE invalid 4 Continue with either a or b below a To calibrate the display contrast adjustment range and the default contrast go to Section 5 4 Contrast Calibration Adjustment This calibration step is only required if the display cannot made dark or light enough or if the display after a test tool reset is too light or too dark b To calibrate the test tool without calibrating the contrast go to Section 5 5 Warming Up amp Pre calibration Explanation of screen messages and key functions When the test tool is in the Maintenance Mode only the F1 F2 F3 and ENTER soft keys the ON OFF key and the backlight key can be operated unless otherwise stated The calibration adjustment screen shows the actual calibration step name and number and its status Cal Name CL nnnn Status Calibration step nnnn Status can be IDLE valid After re entering this step the calibration process is not started The calibration data of this step are valid This means that the last time this step was done the calibration process was successful It does not necessarily mean that the unit meets the specifications related to this step IDLE invalid After re entering this step the calibration process is not started The calibration data are invalid This means that the unit will not meet the specifications if the calibration data are saved BUSY aaa bbb Calibration adjustment step in progress progress for Input 1 and Input 2
169. r Circuit 1 Power the test tool by the power adapter only 2 Check TP501 for z15 20V If not correct check the power adapter input circuit X501 Z501 V501 C501 3 Check TP504 VBAT for about 7 5V If not correct check R501 V504 V503 L501 C503 Check TP502 for a 100 KHz 13Vpp pulse signal if not correct or low check if TP504 is shorted to ground and check V506 4 Install a charged battery The voltage at TP504 will be now about 5V 5 Check 01 pin 18 P7VCHA for 7V If not correct check N501 pin 20 for 15V supplied via R502 If 15V on pin 20 is correct check C507 replace N501 P7VCHA is the supply voltage for the charger control circuit in N501 It is derived from VADAPTER pin20 by an internal linear supply in N501 6 Check N501 pin 12 NETVALID for 2 7V and TP529 MAINVAL for 3 3V The NETVALID and MAINVAL signals indicate to the P ASIC and the D ASIC that a correct power adapter voltage is connected The signals enable control of the P ASIC CHARGE circuit controls V506 by 100 kHz 13Vpp square wave If correct continue at step 7 Corrective Maintenance 7 3 Charger Circuit If not correct then a Check 571 3V3GAR for 3V3V If not correct possibly caused by V569 R580 TP571 short to ground loose pins of N501 N501 defective Check N501 pin 8 VADALOW for 1 1V If not correct Check R516 and connections The P ASIC supplies a current to R516 The current sourc
170. r adapter is connected the LCD backlight voltage on the wire cable is 400V when the test tool is on 4 Remove the two screws item 10 that secure the Main PCA unit to the top case 5 Lift the screw end of the Main PCA unit and remove the unit by gently wiggling the assembly from side to side as you pull backwards SHIELDING SLAP ET lt TABS OF THE SHIELDING BACKLIGHT LE PLATE INSIDE BOTH CABLE x SHIELDS KEYPAD FOIL l FLEX CABLE p p a CONNECTOR ST8035 Figure 6 2 Flex Cable Connectors ST8035 EPS 43 Service Manual 6 2 6 Removing the Display Assembly There are no serviceable parts in the display assembly Referring to Figure 6 1 use the following procedure to remove the display assembly 1 2 Remove the main unit see Section 6 2 5 The keypad pressure plate item 9 is captivated by four plastic keeper tabs in the top case Press the plate down carefully slide the plate to release it from the tabs and then remove it Remove the display assembly item 6 To prevent finger contamination wear cotton gloves or handle the display assembly by its edge After removing the display assembly the shielding bracket item 5 with the conductive foam strip item 4 the dust seal item 3 and the shielding foil item 2 can be removed 6 2 7 Removing the Keypad and Keypad Foil Referring to Figure 6 1 use the following procedure to remove the keypad and the keypad foil
171. r destruction of the equipment or other property Warning Calls attention to a potential danger that requires correct procedures or practices to prevent personal injury 1 4 Symbols Table 1 1 shows the symbols used on the test tool or in this manual Table 1 1 Symbols Manual Read the safety information in the Users DOUBLE INSULATION Protection Class Equal potential inputs connected Static sensitive components internally black yellow Live voltage QU Recycling information Earth NY Disposal information x cd P Conformit Europ enne 43 Service Manual 1 5 Impaired Safety Whenever it is likely that safety has been impaired the instrument must be turned off and disconnected from line power The matter should then be referred to qualified technicians Safety is likely to be impaired if for example the instrument fails to perform the intended measurements or shows visible damage 1 6 General Safety Information Warning Removing the instrument covers or removing parts except those to which access can be gained by hand is likely to expose live parts and accessible terminals which can be dangerous to life The instrument shall be disconnected from all voltage sources before it is opened Capacitors inside the instrument can hold their charge even if the instrument has been separated from all voltage sources Components which are important f
172. ration Points lt 300 5 11 5 4 Gam Calibration Points rere san sis 5 13 Teles eStartng Eault Emding u eee ee 7 4 8 l Final Assembly Parts 2020 2 ar EI 8 4 8 2 Mam PC A Unit css tii e e e M E EE ite 8 6 8 3 Main PCA nenne nr 8 7 9 1 Parts Location PCA Side 1 9 4 9 2 Parts Location Mam PCA Side 2 usa sinn 9 5 List of Figures Figure Title Page 2 1 Max Input Voltage vs 2 4 3 1 Bluke 43 Block Diagram ee er eee ee tee ae akuna taeda E Recte 3 2 3 2 Fluke 43 Start up Sequence Operating 3 8 3 3 Power Supply Block 3 9 3 4 CHAGATE Control 2 eee ees 3 11 3 5 Fly Back Converter Current and Control Voltage 3 12 3 6 Fly Back Converter Block 3 13 3 7 Back Light Converter Voltages essere eee 3 14 3 8 C ASIE Block eg D RE DERE e 3 15 3 9 Capacitance Measurement 3 19 3 10 T ASIC Trigger Section Block 3 20 3 11 Random Repetitive Sampling 3 22 3 12 Reference Voltage Section ee 3 23 3 135 CD Control n ete een etes ee ut red ri reden pee ea 3 26 4 1 Display
173. ration at the first step of Section 5 6 1 Starting at another step will make the calibration invalid If you proceeded to step N for example step CL 0615 then return to a previous step for example step CL 0613 and then calibrate this step the complete final calibration becomes invalid You must do the final calibration from the beginning step CL 0600 again You can repeat a step that shows the status READY by pressing again 43 Service Manual 5 6 1 HF Gain Input 1 Proceed as follows to do the HF Gain Input 1 amp 2 calibration 1 2 10 11 12 13 14 to select the first calibration step in Table 5 1 HFG amp FI AB CL 0600 Connect the test tool to the 5500A as shown in Figure 5 3 Do NOT use a 500 termination FLUKE 5500A CALIBRATOR PM9093 PM9091 001 1 5m PM9092 001 0 5m ST8097 CGM Figure 5 3 HF Gain Calibration Input Connections Set the 5500A to source a 1 KHz fast rising edge square wave Output SCOPE MODE edge to the first calibration point in Table 5 1 Set the 5500A in operate OPR Press to start the calibration Wait until the display shows calibration status READY Press to select the next calibration step set the 5500A to the next calibration point and start the calibration Continue through all calibration points in Table 5 1 Set the 5500A to source a 1 KHz square wave Output SCOPE MODE wavegen WAVE square
174. ronmental Eonditi ns r rsr ernennen 2 9 2 7 Electromagnetic Immunity 2 10 3 Gircult Deseriptlons 2 22 ee 3 1 uuu 3 3 3 2 Block Diagram een 3 3 3 2 1 Input 1 Input 2 Measurement Circuits 3 3 3 2 2 Trigger Circuits 3 5 3 2 3 Digital Circuit S s s usus SAESSSNONSSGNSNNNGNSICRSIE NIS 3 5 3 2 4 POWer ete tete tete te tegere 3 6 3 2 5 Start up Sequence Operating Modes 3 7 5 3 Detailed Circuit Descriptions eee eee eee Ree 3 9 3 32 Pover Circuit ston n s hee ae abu QD SS SSS ee 3 9 3 3 2 Input 1 Input 2 Measurement Circuits 3 14 9 3 3 Ine ger ea de eet oe NANNNANMMASR ees 3 20 43 Service Manual 35924 Digital Circuit unusunuisssuhssuassuassuassuasenas sesn 3 24 Performance Verification seres 4 1 4 1 Introduction inei needed 4 3 4 2 Equipment Required For Verification 4 3 4 3 How Verily el iY 4 3 4 4 Display and Backlight 22 00 01 0 0 000 4 4 4 5 Input 1 and Input 2 Tests in the SCOPE 4 5
175. s TP332 RAMPCLK for 0 6V 200 ns pulses TP331 RSTRAMP for 3V pulses with varying pulse with and repetition rate All pulses are supplied by D ASIC D471 Check TP310 REFATT for alternating 1 2V and 1 2V pulses The repetition time depends on the time base and is for example 9 s at 20 ms div Check the SCLK and SDAT lines for 3 3V pulse bursts C ASIC pin 25 and 26 Check TP437 Sample clock for a 5 MHz time base 2 1 ms div or 25 MHz clock signal 3 3V Check TP301 REFADCT for 1 62V and TP302 REFADCB for 0 12V Check the ADC supply voltages VDDAA VDDDA VDDBB VDDDB and for 3 3V Check TP401 and TP451 for OV ms and Capacitance Measurements Press and select OHMS CONTINUITY CAPACITANCE Press Ohms Connect a current meter between Input 1 and the COM input Select the various Corrective Maintenance 7 7 5 Miscellaneous Functions Ohms ranges and verify that the current approximately matches the values listed in the table below If not correct the protection circuit or the current source in the T ASIC N301 may be defective If the current is correct and the Volt function is correct so ADC is correct then the Ohms part in the C ASIC is defective replace N101 Range 502 5000 50 kQ 500 5 30 MQ Current 500uA 500 50uA 5 __ 0 5 50 50nA The 500 range is only available in the Continuity meas
176. s to highlight negative trigger L e Press to confirm L mark changes to Performance Verification 4 5 Input 1 and Input 2 Tests in the SCOPE MODE e Press to return to SCOPE 11 Set the 5500A to source 3V DC 12 Set the trigger level to 2 divisions from the screen center For negative slope triggering the trigger level is the bottom of the trigger icon 1 e Press to select TRIGGER e Using S set the trigger level to 2 divisions from the screen center 13 Verify that no trace is shown on the test tool display and that at the upper right corner of the display HOLD is not shown If the display shows HOLD then press Hold should disappear and the test tool is re armed for a trigger 14 Decrease the 5500A voltage slowly in 0 1V steps using the 5500A EDIT FIELD function until the test tool is triggered and the traces are shown 15 Verify that the 5500A voltage is between 1 5V and 2 5V when the test tool is triggered To repeat the test start at step 12 16 When you are finished set the 5500A to Standby 4 5 8 Input 1 and 2 DC Voltage Accuracy Test WARNING Dangerous voltages will be present on the calibration source and connecting cables during the following steps Ensure that the calibrator is in standby mode before making any connection between the calibrator and the test tool Proceed as follows 1 Connect the test tool to the 5500A in Figure 4 5 FLUKE 5500A CALIBRATOR cS
177. s Ampere 4 10 VOLT AMPS HERTZ Proceed as follows to test VOLT AMPS HERTZ 4 30 Performance Verification 4 11 POWER 1 Connect the test tool to the 5500A as for the previous test shown in Figure 4 9 2 Press 3 Press 2 to highlight VOLT AMPS HERTZ 4 Press to select VOLT AMPS HERTZ Set the 5500A to source the AC voltages in the table NORMAL output Wave sine and check the readings 6 When you are finished set the 5500A to Standby Table 4 10 Volts AMPS HERTZ verification points 5500A output 5500A Freq Reading1 Reading 2 Volt Hertz Amperes 0 10 counts 10 counts 5 5V 70Hz 5 34 5 66 69 4 70 6 5 34 5 66 4 5V 70Hz 69 4 70 6 4 445 4 555 4 11 POWER Proceed as follows to test POWER 1 Connect the test tool to the 5500A as for the previous test shown in Figure 4 9 2 Press 3 Press to highlight POWER 4 Press to select POWER Set the 5500 to source the AC voltages in the table NORMAL output Wave sine and check the readings 6 When you are finished set the 5500A to Standby Table 4 11 Power Measurement Verification points 5500A output Reading Input 1 Input 2 VA VAR PF DPF Hz 0 0 4 counts 4 counts 4 counts 4 472N 60Hz 4 472 60Hz 19 4 20 6 19 4 20 6 t4counts 0 96 1 00 0 97 1 00 59 5 60 5 5 916V 60Hz 5 916V 60Hz 34 8 35 7 34 3 35 7 4counts 0 96 1 00 0 97 1 00 59 5
178. s are calculated from the Input 1 and Input 2 voltage samples 43 Service Manual The Input 1 and Input 2 measurement circuits are partially identical The differences are e Only Input 1 provides facilities for Ohms Continuity Diode and Capacitance measurements The bandwidth of the Input 1 circuit is 20 MHz the bandwidth of Input 2 is 15 KHz e Input 2 has an additional hum rejection circuit The circuit description below applies to the Input 1 and Input 2 circuit Input 1 and Input 2 measurement principle An input voltage applied to Input 1 or Input 2 is supplied to the C ASIC via the HF path Input 1 only and the LF path Depending on the actual measurement function the Input 1 HF path in the C ASIC is enabled or disabled The HF DECade ATTenuator and LF DECade ATTenuator are external components for the HF and LF path The C ASIC converts attenuates amplifies the input signal to a normalized output voltage ADC A ADC B which is supplied to the Analog to Digital Converters ADC A and ADC B on the DIGITAL part The D ASIC acquires the digital samples to build the traces and to calculate readings For the electrical functions the current Input 2 circuit is operating in low voltage ranges For example a current of 10A measured with a 1 mV A current clamp generates 10 mV voltage range 10 mV div To minimize the influence of interference voltages Input 2 has no HF path and has an additional hum reject circuit The lowest
179. select the Input 2 COUPLING to highlight Input 2 Coupling Press to highlight DC Coupling e Press to confirm L mark changes to e Press to return to SCOPE 4 Set the 5500A to source a sine wave to the first test point in Table 4 6 NORMAL output WAVE sine 5 Observe the Input 1 and Input 2 main reading and check to see if it is within the range shown under the appropriate column 6 When you are finished set the 5500A to Standby Table 4 6 Phase Measurement Verification Points 5500A output Vrms sine 5500A Frequency Reading 1 amp 2 1 5V 400 Hz 2 to 2 Deg 4 5 13 Input 1 and 2 High Voltage AC amp DC Accuracy Test Warning Dangerous voltages will be present on the calibration source and connecting cables during the following steps Ensure that the calibrator is in standby mode before making any connection between the calibrator and the test tool Proceed as follows to test the Input 1 amp 2 High Voltage DC Accuracy 1 Connect the test tool to the 5500A as shown in Figure 4 6 4 22 Performance Verification 4 5 Input 1 and Input 2 Tests in the SCOPE MODE FLUKE 5500A CALIBRATOR ST8129 CGM Figure 4 6 Test Tool Input 1 B to 5500A Normal Output for gt 300V Select the AUTO test tool setup e Press to select the MENU e Press till SCOPE is highlighted Press to select SCOPE mode Select DC coupling amp reading for Input 1 and 2 e
180. selectable within modes In Normal y ais ahs Sa eR RS 5 s to 20 ns div Single 2 e e ee eee rt e eee eee 5sto 1 us div EROI mode 2 2a22zacncScseSenescaeneaenenenasest 60 s to 1 s div Lime iet te e tee eee tee eee eee eee eee tee tee tee tee tete lt 0 4 96 1 pixel 2 5 43 Service Manual Maximum sampling rate 10 m8 16 00 8 eier 5 MS s 20st lO a t er m 25 MS s Trigger source a e nee en e E DER ED uu u Input 1 or Input 2 Trigger Mode auto triggering DOULCES Input 1 Input 2 Automatic not manually selectable Error for frequencies lt 1 MHz Voltage Eevel oet Eh t 0 5 div at positive slope the top of the trigger symbol and at negative trigger the bottom of the trigger symbol is the trigger point Time Delay Real Time sampling sse 1 sample Time Delay Quasi Random sampling eee 10 ns Sensitivity input 1 40 MHZ zn ERE RENE Se en Ae 24div 25S E E e a a uE 21 5 div ODE 5 20 5 div or 5 mV Sensitivity input 2 DC 20 xor 2 0 5 div Slope Selection l l ei nnb Positive negative Level Control Range Manual control gt 4 div within dynamic range Delay horizontal move 10 div 0 div
181. side 1 drawing circuit diagram part 4 location J10 43 Service Manual 9 4 Table 9 1 Parts Location Main PCA Side 1 B402 B403 C101 C102 C104 C105 C106 C111 C112 C113 C114 C116 C117 C118 C119 C121 C122 C123 C124 C146 C181 C183 C187 C201 C202 C204 C205 C206 C211 C212 C213 C214 C216 C217 C218 C219 C221 C222 C223 C224 C246 C281 C283 C287 C303 C313 C314 C317 C321 C322 C333 C337 4 J10 4 J11 1 1 2 1 2 1 4 1 1 2 1 B3 1 B2 1 B3 1 B4 1 C3 1 C4 1 C4 1 D4 1 C4 1 C5 1 D5 1 F5 1 A9 1 C9 1 C8 2 E3 2 E2 2 C2 2 B3 2 E2 2 A2 2 A2 2 B2 2 B2 2 B3 2 C3 2 C3 2 C4 2 C3 2 C3 2 2 C4 2 F5 2 A9 2 C9 2 B2 3 E6 3 D7 3 E6 3 G6 3 C7 3 C7 3 Ell 3 G11 C339 C392 C395 C399 C465 C501 C502 C503 C504 C528 C553 C555 C561 C562 C563 C564 C565 C567 C568 C572 C573 C574 C576 C581 C608 C609 D401 D451 D471 D474 D475 H495 H521 H522 K171 K173 K271 L501 L564 L566 L569 L600 101 201 3 611 3 62 3 B10 3 All 4 B12 5 E3 5 F6 5 E6 5 E6 5 H8 5 G10 5 C11 5 C13 5 C14 5 C14 5 D14 5 B14 5 B14 5 B15 5 B15 5 C15 5 C15 5 C15 5 B10 5 15 5 15 4 4 4 JA 4 F11 4 15 4 15 4 116 5 K9 5 K8 1 E4 3 D14 1 C2 3 C14 2 E4 3 E14 5 E5 5 C14 5 C14 5 B14 5 J13 1
182. so 153 ROM lt 50 aD OFFSET_B AB OFFSETBD me ADC_A_D4 5 piscstais 1152 I TDANNMAMITZE ct D16CS2A19 D480 R482 A var TRIGLEV1 R433 TRGLEVID RANDOMIZE HOLDOFF gt 7 ROMRD 150 __ROMREAD 74LVC32 51E BAS85 0480 we cop or eee A 8 ADCA3 ROMWR 1149 ROMWRITE 2 C470 74LVC32 TRIGLEV2 TRGLEV2D ADC A 02 9 vss 148 4 1 7470 HO OUT ADC_A_D1 10 1 von 9 1 avo en d d ie 5 e OFFSET_A R438 OFFSETAD ADC_A_DO 11 ADCAD ROMRST 148 Romrst P I 1811 VD 12 VCLAMPA 145 DACTESTT 3 68 E POS_A ae POS_A_D HOLDOFF _ 13 HOLDOFF Ramp 144 RAMD x 5 R480 v461 HO_OUT 14 Rampe 143 D6 DATA SADCLEV R441 SADCLEVD TP482 10K BAS16 HO_IN 15 HOSCHMIN Ramps 142 D5 NO OPTION RAMPCLK 16 TROTCLK RAMD4 44 D4 1 R442 T CHARCUR CHARCURI SMPOLK Bi VD 7 vp RAMD3 10 _ D3 RAM 18 vss D471 RAMD2 133 D2 C431 C433 C439 C442 SMPCLK _ F o Sapeii RAMD1 138 RAM D1 D475 100n 22n 4n 22n R479 20 EXTTRIG 137 RAM DO MSMSIBOETE S Mel ARS 7 21 ALLTRIG Doscso 136 RAM_CSO A41 d ads oE 32 _ READRAM TRIGDT 7 22 TRIGDT 51 135 DEBUGT A08 2 A10L31 10 C432 C434 C438 C441 R478 TRIGQUAL 23 TRIGQUAL Doscs2 134 NC RAM A08 3 las 51130 RAM_CSO 100n 22n 4n7 22n iH RNDM RSTRAMP 24 TROTRST
183. soon 5kQ 5 5 5 30MQ Sensitivity div 200 2000 2ko 20kQ 200kQ 2MO 10 0 Current in Rx 500uA 500uA 50uA 5uA 500nA 50nA 50nA To protect the current source from being damaged by a voltage applied to the input a PTC resistor R172 and a protection circuit are provided See Section 3 3 3 Current Source During measuring input voltage measurements gain measurements and zero measurements are done As a result the voltage supplied to the ADC is a multiplexed zero reference reference input voltage signal Capacitance Measurements Input 1 only The capacitance measurement is based on the equation C x dV Ix dt The unknown capacitor Cx is charged with a constant known current The voltage across Cx increases and the time lapse between two different known threshold crossings is measured Thus dV I and dt are known and the capacitance can be calculated The unknown capacitance Cx is connected to the red Input 1 safety banana socket and the black COM input The T ASIC supplies a constant current to Cx via relay contacts K173 and protection PTC resistor R172 The voltage on Cx is supplied to two comparators in the C ASIC via the LF input The threshold levels th and th of the comparators are fixed see Figure 3 9 The time lapse between the first and the second threshold crossing depends on the value of Cx The resulting pulse is supplied to the TRIGGER output pin 29 which is co
184. t cursor 2 96 10 counts Vrms min Arms min idem at 2 96 12 counts Transients Detection of voltage transient gt 40 ns Useful input bandwidth input 1 with test leads TL24 DC to 1 MHz Reference 2 EE Vrms Hz After START the Vrms and frequency of the signal are measured From these data a pure sine wave is calculated Detection when transients exceed specified voltage level selectable Voltage levels 20 50 100 200 of reference signal Number of transient memories 40 Cursor reading Vpeak min Vpeak max at cursor 5 96 of full scale Inrush Graphic display Current ranges selectable 5 10 A 50 A 100 A 500 A 1000 Inrush times selectable 1 5s 105 50 s 100 s 5 min Cursor readings peak max at cursor l 5 96 of full scale A peak max at Cursor 2 21 m e e hm eee 5 of full scale Time between I eren 0 2 96 2 pixels 2 3 2 Scope Input Impedance Input lee een ERR NRI RR REIR GR 1 MQ 12 pF 2 pF ln 1 MQ 10 pF 2 pF Horizontal Time base modes selectable esee Normal Single Roll Ranges
185. t voltage The BACKBRIG signal supplied by the D ASIC provides a pulse width modulated variable duty cycle square wave By changing the duty cycle of this signal the average on resistance of V604 can be changed This will change the secondary current and thus the back light intensity The voltage on the cold side of the lamp is limited by V605 and V603 This limits the emission of electrical interference R605 and R606 provide a more reliable start up of the backlight PCB version 3 up only CN N Voltage at T600 pin 4 Voltage AOUT Voltage BOUT bL LI Zero Zero detect detect Figure 3 7 Back Light Converter Voltages Circuit Descriptions 3 3 3 Detailed Circuit Descriptions 3 3 2 Input 1 Input 2 Measurement Circuits The description below refers to circuit diagrams Figure 9 1 and Figure 9 2 The Input 1 and Input 2 circuits are partly identical Both circuits condition input voltages See section 3 2 1 for a description of the differences between Input 1 and 2 The Input 1 2 circuitry is built up around a C ASIC OQ0258 The C ASIC is placed directly behind the input connector and transforms the input signal to levels that are suitable for the ADC and trigger circuits The C ASIC Figure 3 8 shows the simplified C ASIC block diagram The C ASIC consists of separate paths for HF and LF signals an output stage that delivers signals to the trigger and ADC circuits and a control
186. tage range on pin 80 is 0 2 7V for a charge current from 0 5A to zero A voltage of OV complies to 0 5A fast charge 1 5V to 0 2A top off charge 2 3V to 0 06A trickle charge and 2 7V to OA no charge If the voltage is gt 3 Volt the charger converter is off V506 permanently non conductive The D ASIC derives the required charge current value from the battery voltage VBAT The P ASIC converts this voltage to an appropriate level and supplies it to output pin 78 BATVOLT The D ASIC measures this voltage via the Slow ADC The momentary value and the voltage change as a function of time dV dt are used as control parameters Charging process If the battery voltage drops below 5 2V and the battery temperature is between 10 and 45 C the charge current is set to 0 5A fast charge From the battery voltage change dV dt the D ASIC can see when the battery is fully charged and stop fast charge Additionally a timer in the D ASIC limits the fast charge time to 6 hours After fast charge a 0 2A top off charge current is supplied for 2 hours Then a 0 06A trickle Circuit Descriptions 3 3 Detailed Circuit Descriptions 3 charge current is applied for 48 hours maximum If the battery temperature becomes higher than 50 C the charge current is set to zero Battery temperature monitoring The P ASIC supplies a current to a NTC resistor in the battery pack TEMP pin 5 It conditions the voltage on pin 5 and supplies it to o
187. ted by reversing the charge current The capacitor will be discharged in the same way as the charge cycle The time between passing both threshold levels is measured again A clamp limits the minimum voltage on Cx to OV Averaging the results of both measurements cancels the effect of a possible parallel resistance and suppresses the influence of mains interference voltages Table 3 5 shows the relation between the capacitance ranges the charge current and the pulse width at full scale Table 3 5 Capacitance Ranges Current and Pulse Width Range 50nF s5o0onF 5000 s5oyF 500 Current pA 05uA 5pA 50uA 500gA 500uA Pulse width at Full Scale 25 ms 25 ms 25 ms 25 ms 250 ms To protect the current source if a voltage is applied to the input a PTC resistor R172 and a protection circuit on the TRIGGER part are provided see Section 3 3 3 Probe Detection The Input 1 and Input 2 safety banana jacks are provided with a ground shield consisting of two separated half round parts One half is connected to ground via the protection PTC resistor R106 R206 Via a 220K resistor installed on the input block the other half is connected to the probe input of the D ASIC pin 54 55 If the shielded STL120 test 3 19 43 Service Manual lead or aBB120 shielded banana to BNC adapter is inserted in Input 1 or Input 2 it will short the two ground shield halves This can be detected by the D ASIC
188. tet ede eee RECN ER eR Ae EET 25 96 20 to 45 Hz uu uN u suu suu 5 45 to 65 Hz 11020 A rnit 5 of reading 0 3 A 20 70 100 Arzt rar E AE 5 of reading 3 phase shift TOO tO X X 2 of reading 5 phase shift 65 Hz to 3 KHz 11090 A ut t t us t 5 0 4 A S50 16 500 5 Influence of temperature on accuracy 0 15 per 10 C 18 F Altitude D ring operationem heme ernennen 2 0 km 6560 feet 1434444445 12 km 40 000 feet 2 6 Environmental Conditions Environmental MIL 28800E Type 3 Class IIL Style B Temperature During operation eee eret 0 to 50 C 32 to 122 F Whil stored oot tette tete teet tet ete 20 to 60 C 4 to 140 F Humidity During operation Oto 3210 50 Fur ttt the RR Se non condensing 10 10 30 C 30 10 86 Dee 95 5 96 30 to 40 C 86 to 104 eie eiei 75 96 x 5 96 40 to 50 104 1229 45 5 96 While stored 20 to 60 4 to 140 SE a sas sa ansa aa na aaa yaw non condensing Altitude u a reper HER EHE RE REPE 4 5 km 15 000 feet The maximum input and floating voltage is 600 Vrms up to 2 km Linearly derating from 600 down to 400 Vrms between 2 km to 4 5 km W hile stored 12 km 40 000
189. the Fluke 43 2 Press to leave the startup screen 3 Press to go to the MENU screen m 4 Press to highlight INSTRUMENT SETUP item A Press to open the INSTRUMENT SETUP menu Press o to highlight VERSION amp CALIBRATION Press to open the VERSION amp CALIBRATION menu REN Press to return to the INSTRUMENT SETUP menu INSTRUMENT SETUP VERSION amp CALIBRATION MODEL NUMBER 43 SOFTWARE VERSION D00 91 CALIBRATION NUMBER 1 CALIBRATION DATE 03 7 197 1998 BATTERY REFRESH DATE 037 197 1998 VERSION BMP Figure 5 1 Version amp Calibration Screen 43 Service Manual 5 1 3 General Instructions Follow these general instructions for all calibration steps Allow the 5500A to satisfy its specified warm up period For each calibration point wait for the 5500A to settle The required warm up period for the test tool is included in the WarmingUp amp PreCal calibration step Ensure that the test tool battery is charged sufficiently 5 2 Equipment Required For Calibration The primary source instrument used in the calibration procedures is the Fluke 5500A If a 5500 is not available you can substitute another calibrator as long as it meets the minimum test requirements Fluke 5500A Multi Product Calibrator including 5500A SC Oscilloscope Calibration Option Stackable Test Leads 4x supplied with the 5500A 500 Coax Cables 2x Fluke PM9091 or PM9092 500 feed
190. through termination 2x Fluke PM9585 Fluke BB120 Shielded Banana to Female BNC adapters 2x supplied with the Fluke 43 Dual Banana Plug to Female BNC Adapter 1x Fluke PM9081 001 Male BNC to Dual Female BNC Adapter 1x Fluke PM9093 001 5 3 Starting Calibration Adjustment Follow the steps below to start calibration adjustments 1 2 Power the test tool via the power adapter input using the PM8907 power adapter Check the actual test tool date and adjust the date if necessary e Press to switch on the Fluke 43 If the date on the startup screen is correct then continue at step 3 e Press to leave the STARTUP screen e Press MENU to go to MENU Press to highlight INSTRUMENT SETUP item e Press to open the INSTRUMENT SETUP menu e Press S to highlight DATE e Press to open the DATE menu e Adjust the date with S and 90 if necessary e When ready press e Press to exit the INSTRUMENT SETUP menu Select the Maintenance mode Calibration Adjustment 5 3 Starting Calibration Adjustment The Calibration Adjustment Procedure uses built in calibration setups that can be accessed in the Maintenance mode To enter the Maintenance mode proceed as follows HOLD e Press and hold 8 28 e Press and release EA e Release ES e The display shows the Calibration Adjustment Screen The display shows the first calibration step Warming Up CL 0200 and the calibration status IDLE valid o
191. tool to the 5500A as shown in Figure 4 3 FLUKE 55 00A CALIBRATOR PM9091 001 1 5m 9092 001 0 5m PM9081 ST8588 wmf Figure 4 3 Test Tool Input 2 to 5500A NORMAL output 2 Select the AUTO test tool setup Press Press Press MENU to select the MENU eo till SCOPE is highlighted to select SCOPE mode 3 Select the following test tool setup Press Press Press Press Press Press Press Press Press Press to select menu SCOPE SETUP S to highlight Input 2 Reading to go to Input 2 READING S to highlight Hz to confirm L mark changes to to highlight Input 2 Coupling to select the Input 2 Coupling menu S v highlight DC Coupling to confirm L1 mark changes to to return to SCOPE 4 Set the 5500A to source a sine wave of 600 mV 15 kHz NORMAL output MODE WAVE sine 5 Observe the Input 2 main reading on the test tool and check the reading between 14 8 and 15 2 kHz 6 When you are finished set the 5500A to Standby 4 9 43 Service Manual 4 10 4 5 5 Input 2 Trigger Level and Trigger Slope Test Proceed as follows 1 2 Connect the test tool to the 5500A as for the previous test shown in Figure 4 3 Select the AUTO test tool setup e Press to select the MENU Press gt till SCOPE is highlighted Press to select SCOPE mode Make Input 2 active e Press to select menu SCOPE SETUP Press gt to highl
192. urement function The current in the Diode measurement function must be 500 uA Press and select OHMS CONTINUITY CAPACITANCE Press Capacitance Verify TP156 for 3 3 OV pulses repetition rate 100 200 ms Zero scale open input pulse width approximately 30 us Full scale for example 500 nF pulse width approximately 25 ms If not correct most probably the C ASIC N101 is defective If correct continue at 7 5 8 Trigger functions pulse width is measured via the T ASIC 7 5 8 Trigger Functions l Select the Scope Normal mode for both input channels Press highlight SCOPE and press press SETUP highlight INPUT 2 Coupling XXX press highlight ODC press highlight Time Base XXX press highlight ONORMAL press press BACK Supply a 1 kHz sine wave of 3 divisions to Input 1 and Input 2 Check a TP156 TP256 for a 600 mV 6 div x 100 mV div 1 kHz sine wave the DC level depends on the trace position The sine wave is interrupted now and then to do a reference measurement If not correct C ASIC N101 N102 is probably defective b TP321 TP322 for 1 1 1 9V DC move the trigger level from top to bottom If not correct check the PWM circuit see 7 5 8 c TP311for a 0 3 3V 1 kHz square wave when the trigger level is at the middle of the trace Change the trigger level and verify that the duty cycle of the square wave changes If not correct T ASIC N301 may
193. utput pin 79 BATTEMP The D ASIC measures this voltage via the slow ADC It uses the BATTEMP voltage to decide if fast charge is allowed 10 45 C or no charge is allowed at all 10 C gt 50 C Additionally the temperature is monitored by the P ASIC The P ASIC supplies a current to reference resistor R512 TEMPHI pin 4 and compares the resulting TEMPHI voltage to the voltage on pin 5 TEMP If the battery temperature is too high the P ASIC Control circuit sets the charge current to zero in case the D ASIC fails to do this If the battery temperature monitoring system fails a bimetal switch in the battery pack interrupts the battery current if the temperature becomes higher then 70 C Maximum VBAT The P ASIC supplies a current to reference resistor R513 VBATHIGH pin 7 It compares the voltage on R513 to the battery voltage VBAT on pin 3 after being attenuated in the P ASIC The P ASIC limits the voltage VBAT to 7 4V via its internal Control circuit This happens if no battery or a defective battery open is present Charger Converter input current This input current is sensed by R501 The P ASIC supplies a reference current to R514 The P ASIC compares the voltage drop on R501 P ASIC pin 14 and 15 to the voltage on R514 IMAXCHA pin 6 It limits the input current e g when loading C503 C555 just after connecting the power adapter via its internal Control circuit CHAGATE control signal To make the FET conductive its
194. when selected fundamental 6 4 96 4 counts DPP 22 aa Qa ehe eee 0 00 to 1 00 ZI sa asa s s A delete e not specified 0 25 16 Ee Pete te aqu aq aq Ee Pee e Exe Re ed 0 04 0 90 to 1 00 7 Y ec Y ea u eg SN eN GN EN UN NIHU 0 03 Characteristics 2 2 3 Function Specifications 0 00 to 1 00 0 04 Frequency Tan SO E 10 0 Hz to 15 0 kHz 40 0 19 70 0 TI Q u ea ee tpfe 0 5 2 counts Harmonics Number of harmonics 2 DC 21 DC 33 DC 51 Readings Cursor readings Vrms fund 3 96 2 counts 31 5 96 3 counts 51 15 96 5 counts Irms fund 3 96 2 counts 31 5 96 3 counts 51 15 96 5 counts Watt fund 5 10 counts 31 10 10 counts 51 30 96 5 counts Frequency of 0 25 Hz Phasen Ren ae fund 3 51 15 K factor in Amp and 10 Sags amp Swells Recording times Selectable 4 minutes to 8 days endless 16 days Readings Cursor Readings Vrms actual Arms actual cycle by cycle calculation 2 96 10 counts Vrms max Arms max idem at cursor a 2 96 12 counts Vrms average Arms average only a
195. y 15V The voltage VBAT is supplied to the battery pack to the P ASIC to the Fly Back Converter and to transistor V569 The FET control signal CHAGATE is a 100 KHz square wave voltage with a variable duty cycle supplied by the P ASIC Control circuit The duty cycle determines the amount of energy loaded into L501 C503 By controlling the voltage VBAT the battery charge current be controlled The various test tool circuits are supplied by the Fly Back Converter and or V569 Required power adapter voltage The P ASIC supplies a current to reference resistor R516 VADALOW pin 8 It compares the voltage on R516 to the power adapter voltage VADAPTER on pin 20 supplied via R502 and attenuated in the P ASIC If the power adapter voltage is below 10V the P ASIC output pin 12 and the line MAINVAL are low This signal on pin 12 is also supplied to the P ASIC internal control circuit which then makes the CHAGATE signal high As a result FET V506 becomes non conductive and the Charger Converter is off Battery charge current control The actual charge current is sensed via resistors R504 R506 507 and filter R509 C509 on pin 9 of the P ASIC IBATP The sense voltage is supplied to the control circuit The required charge current information is supplied by the D ASIC via the CHARCUR line and filter R534 C534 to pin 80 A control loop in the control circuit adjusts the actual charge current to the required value The filtered CHARCUR vol
196. y and Backlight Test Before doing the tests you must reset the test tool to put itin a defined state Proceed as follows to reset the test tool Press to turn the test tool off Press and hold Press and release to turn the test tool on Wait until the test tool has beeped twice and then release When the test tool has beeped twice the RESET was successful Proceed as follows to test the display and the backlight 1 2 3 4 en 4 4 Press to turn the test tool on Remove the adapter power and verify that the backlight is dimmed Apply the adapter power and verify that the backlight brightness is set to maximum Press to leave the STARTUP screen Press and hold Press and release 1 Release The test tool shows the calibration menu in the bottom of the display Do not press now If you did press twice to turn the test tool off and on and start at 4 Press PREV three times The test tool shows Contrast CL 0100 WANUAL Press CAL The test tool shows a dark display the test pattern as shown in Figure 4 1 may not be visible or hardly visible Observe the display closely and verify that no light pixels are shown Figure 4 1 Display Pixel Test Pattern Performance Verification 4 5 Input 1 and Input 2 Tests in the SCOPE MODE 11 12 13 14 15 Press i The test pattern is removed the test tool shows Contrast CL 0110 MANUAL Press CAL The test too

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