SERVICE MANUAL
Contents
1. 25 06 U9 5 06 U9 4 me 8210 05 Model COUNTER PREAMP CIRCU Drawing Checked Approved n EE EE E A a E MES l l l l I R83 I 10K l COUNTER ry __ ES 06 R150 1 lt 7 x 7 7 gt x J i C40 i 47 16V C39 R87 C48 l C47 i 5VD 103 510 47 16V 103 C44 R95 a 470P C C 330 R99 330 I R85 A kK a20 I BNC4 100K R88 el UBA Iw2N3906 2 R102 EXT COUNT IN Q18 150 U8B y R92 MC10116 U8C 22 I 2N5486 C9 MC10116 7 150 MC10116 I 1 I ji 3 4 I I I I l H l 637 T 5 T I JL eal 474 250V A I SW5 638 Q21 I EXT INT SW 130P C41 2N3906 i L 130P A j I i Q19 R94 i D10 Dii 2N3906 470 R10 i 1N4148 1N4148 120 i R86 510 SFR1 i 10K I 2 2K gt 2 2K 1 r 4 C43 I 47 16V l La I R108 D16 C91 _ 046 2 I 470 1N4148 m ZTS6 6 I 7 I gt pi l l I FIRO9O D17 108 1N4148 I pa l 103 74LS191 I 06 U9 3 l l l l l l l l l l l l l l l l 5V D C53 104 U13 TB62783 1 0 01 211 02 2 03 3B O4 5414 05 2 I5 O6 l6 07 7 O8 ug PAL16R42. C87 swe I l e Svmm I S 5V l l l 15V A SFR8 2 2KB 22 16V R11 2 7K Q2 2N3904 C32 22 16V 15V gt 02 U30B 3 gt 02 U30A 12 e 8210 01 Model FREQ VCF IN CIRCUIT Drawing Size A3 Rev 02 Sheet 1 of 6 Date 2002 3 30 Scale 2 1 5V R69 SW1 T T d SINE TRIANGLE SFR10 1KB R37 1KF R33 C87 2K 22P R41 270 R40 33K Q8 Q9 T K C1815 C3198 FTA C15 R34 330 R35 1KF Lg R44 C14 10 22 10V d 5V 0 01uF CER 3 15V A C76 R126 0 1 MON C19 100 R138 0 1 MON R12 56 2F R140 A D5 1K 0 10 1 2W 1N4148 U17 CA3096 C78 R12 D 1 MOI 1K R127 C75 AT 825F 0 1 MON FR C77 R139 21 5F R128 10 1 150 Q15 2N3906 Q16 2N2219 T 1 R147 240 1 C71 _ L 0 1 MON R14 R148 62 62 68 R135 R141 10 1 2W 10 1 2W R129 24 9K R144 100 1 2W BNC3 R115 R134 249 1 5KF OUTPUT 5 2 1 R122 14K sw3 C72 C73 R145 ATT d d 1 5pF 1 5pF R142 10
3. 1 NO Display 1 Check the FUSE and if it is broken change to new one with same rating 2 Check the output voltage of power transformer 17 to 18 Vac between pin 1 and 2 of CN14 and between pin 2 and 3 of CN14 on main board 8 to 10 Vac between pin 1 and 2 of CN4 CN24 and between pin 2 and 3 of CN4 CN24 on main board 3 Check the DC Power Voltage 5VDC at U6 and U15 output U6 15 Assembled at rear panel 4 Check the frequency at pin 19 of U12 It should be 10MHz 5 Check the connector cable from CN12 CN13 main board to display board 3 2 2 Triangle Wave Out put 1 Check the Function switch operation and select Triangle Wave 2 Check the DC Power Voltage for Generator Circuit 15VDC at U5 output 5VDC at U6 U15 U20 output U6 15 assembled at rear panel 5VDC at Anode of ZD1 15VDC at U7 output 21VDC at upper leg of R68 3 Check the waveform at Q7 Emitter The Triangle Wave should be appeared 4 f not check the operation of Amplifier and Triangle oscillator U1 A B D U2 A B 16 01 02 03 04 05 06 D1 D2 D3 D5 07 5 Check the Range Selector Switch operation and Frequency Control Volume and Cable connection from VR1 to CN2 Main Board 6 Check the Amplitude VR4 and Cable connection from VR to CN5 on main board 7 Check the waveform at R46 The Triangle Wave should be appeared 8 If not check the operation of Differential Amplifier 012 013 014 015 016 9 Check the Attenuator sw
4. Control 1M MIN Less than 100 0 kHz Do IA 100k MIN Less than 10 0 kHz DOO oo Mee Her then TOS z _ 10k MIN Less than 1 0 kHz tice than 100 5 kie 1k MIN Less than 100 Hz ee 100 MIN Less than 10 0 Hz x O NI HI 10 MIN Less than 1 Hz tk Meer than toohe DND n3 MIN Less than 100 mHz MAX Higher than 10 Hz 2 6 SYMMETRY ADJUST EQUIPMENT Osci I loscope BNC CABLE FEEDTHROUGH TERMINATION 50 Q if necessary PROCEDURE 1 Set this product as follows Function SQUARE L ATT 0 dB PULL OUT AMPLITUDE CENTER COUNT INT PULL OUT DC OFFSET OFF PUSH IN SYM OFF PUSH IN SWEEP OFF PUSH IN 2 Connect the oscilloscope to output terminal 3 Set the output frequency to 100kHz 4 Pull out SYM Control and adjust to Min position And adjust SFR6 the symmetry duty ratio is lower than 1 10 5 Adjust SYM Control to Max position and adjust SFR7 the symmetry duty ratio is higher than 10 1 2 7 FREQUENCY COUNTER ADJUST EQUIPMENT 10MHz Standard Signal Source Signal Generator up to 110MHz BNC CABLE FEEDTHROUGH TERMINATION 50 Q if necessary PROCEDURE 1 Set this product as follows COUNT EXT PUSH IN 2 Connect 10MHz Standard Signal to the EXT COUNT IN terminal and adjust TC1 for 10 0000 MHz reading on Counter Display 3 Set Signal generator to 110MHz 100mVrms and connect the EXT COUNT IN terminal 4 Adjust SFR16 Shield Box IN for 110 0000 MHz reading on Cou
5. 0 1 2W C82 FR RG5 15V T T 069 10 1 2W 100P D7 R123 1N4148 FR C18 1 21K Q29 0 1 MON 2N2905 R11 R160 a 10K 1K D14 C80 1N4148 C74 0 1 MON J6 0 1 MON CN6 ML 100 25V ala T C79 19 L 1 os 19 qa e R131 10 1 2W R161 100 Lis 1K 081 _ 0 1 MON V 15V Title 821 0 03 Drawing Design Checked Approved Model AMPLFIER CIRCUIT Size A3 Rev 02 F1 FZ NOISE FILTER FUSE J15 CN15 J15 Sw8 POWER S W ST1 J16 CN16 T2 TRANSFORMER POWER DB1 2 1 21V q E iv R68 10 0 5W C20 A 2200 35V 415V gt 15V C306 104 1KV C307 104 1KV l l l J14 J14 DB06M I CN14 CN14 1 1 2 2 5V I 3 3 2 2 C21 9 2 9 C23 I ZT 1000 35V 22 16V I U7 i 7915 15V I M L c25 C24 22h6V 1000 35V 7 I R66 I 560 1W I l 5V ZD1 i w 5 1V C27 I 47 35V 5V I 5V D A D12 U15 J4 J 1N4003 7805 CN4 CN4 1 a VOUT 3 gt 5V D 1 1 I 2 2 C60 C61 I 3 3 470 16V 104 l l FAN D20 U20 J17 DC FAN _ J5 J5 7805 CN17 I CN5__ CN5 VOUT 7 j 1 1 B 2 2 6 c201 3 gt C200 470 16 C20 C20 470 16V 104 D22 104 1
6. 40 42 43 46 48 ELEC CAPACITOR 100uF25V 2 00 C77 79 ELEC CAPACITOR 1000uF35V 2 00 C21 24 ELEC CAPACITOR 220uF35V 1 00 C20 ELEC CAPACITOR 2200uF35V 1 00 C58 ELEC CAPACITOR 470uF25V 3 00 C60 200 201 SWITCHING DIODE SMD _ 1N4148 13 00 D3 11 14 15 16 17 SWITCHING DIODE SMD _ HSMS 2825 TR1 1 00 D1 1 19 Part Name Specification q ty Referance C F RESISTOR SMD 22J 1 8W 3 00 28 47 102 C F RESISTOR SMD 220J 1 8W 3 00 4 29 118 C F RESISTOR SMD 2 2KJ 1 8W 4 00 9 10 90 91 C F RESISTOR SMD 22KJ 1 8W 1 00 89 C F RESISTOR SMD 240J 1 8W 1 00 147 C F RESISTOR SMD 1270 1 8W 1 0041 C F RESISTOR SMD 2 7KJ 1 8W 1 00111 C F RESISTOR SMD__ 300J 1 8W 1 00 39 C F RESISTOR SMD 433J 1 8W 3 00 27 72 170 C F RESISTOR SMD 330J 1 8W 4 00 34 95 98 99 C F RESISTOR SMD 4 33KJ 1 8W 1 0040 C F RESISTOR SMD 4 39KJ 1 8W 1 00 71 C F RESISTOR SMD 470J 1 8W 7 00 93 94 96 97 100 101 108 C F RESISTOR SMD 47KJ 1 8W 1 00 30 C F RESISTOR SMD__51J 1 8W 1 00 1114 C F RESISTOR SMD 510 1 8W 4 00 86 87 R01 R02 C F RESISTOR SMD 5 1KJ 1 8W 3 0074 75 76 C F RESISTOR SMD 62J 1 8W 2 00146 148 C F RESISTOR SMD 7 5KJ 1 8W 2 007 73 C F RESISTOR SMD 8 2KJ 1 8W 1 00 104 SEMI FIXED RESISTOR VZ067TH1 100B 1 00 SFR11 SEMI FIXED RESISTOR VZ067TH1 1KB 2 00ISFR10 13 SEMI FIXED RESISTOR VZ067TH1 10KB 8 00ISFR1 2 3 4 5 6
7. 7 16 SEMI FIXED RESISTOR VZ067TH1 100KB 2 00 SFR12 15 SEMI FIXED RESISTOR VZ067TH1 2KB 1 00 SFR8 M F RESISTOR SMD JIKF 1 8W 4 00 21 35 37 38 M F RESISTOR SMD 100KF 1 8W 1 00117 M F RESISTOR SMD 11KF 1 8W 2 0023 25 M F RESISTOR SMD 120F 1 8W 1 00136 M F RESISTOR SMD 1 21KF 1 8W 2 0012 16 1 2K F M F RESISTOR SMD 121KF 1 8W 2 00 R13 17 M F RESISTOR SMD _ 1 5KF 1 8W 1 00133 M F RESISTOR SMD 21 5F 1 8W 2 00137 139 22 F M F RESISTOR SMD 12 2KF 1 8W 1 00135 M F RESISTOR SMD 249F 1 8W 1 00 R115 243 F 20 Part Name Specification q ty Referance M F RESISTOR SMD 24 9KF 1 8W 1 001129 24 3K F M F RESISTOR SMD 39 32KF 1 8W 1 00119 3 4K F M F RESISTOR SMD 422F 1 8W 1 001120 M F RESISTOR SMD 430F 1 8W 2 0022 24 M F RESISTOR SMD 4 99KF 1 8W 1 001132 M F RESISTOR SMD 56 2F 1 8W 1 00 138 56 F M F RESISTOR SMD 5576F 1 8W 1 00121 M F RESISTOR SMD 825 1 8W F 2 00127 130 M F RESISTOR 900F 1 4W 1 0032 OXIDE FILM RESISTOR 560J 1W 1 00 66 KEY SWITCH SPUN90X1C021 1 00 KEY SWITCH SPUN40X1C041 1 00 POWER SWITCH JPP2295MPACS72 1 00 P S W1 I C TI SN75107AN 1 00JU3 I C SMD BA10324AF 2 00 U1 2 Rohm C SAM MOTO NS MC7805 1 00 U20 I C SAM MOTO MC7815 1 00U5 I C SAM MOTO MC7915 1 00U7 I C MOTO MC10116 1 00U8 C HAR RCA CA3096AE 1 0017 I C S
8. FREQ DIAL 10kHz COUNT INT PULL OUT DC OFFSET OFF PUSH IN SYM OFF PUSH IN SWEEP OFF PUSH IN 3 Set the oscilloscope to 1V div 5uS div and connect to TTL output terminal 4 Check the rise and fall time of TTL SQUARE WAVE on CRT 5div 1 3 5 DC OFFSET CONTROL SPECIF I CATION MIN lower than 10 V DC Open circuit MAX higher than 10 V DC Open circuit EQUIPMENT Oscilloscope BNC CABLE PROCEDURE 1 Set this product as follows Function SQUARE Lu ATT 0 dB PULL OUT FREQ RANGE 10k FREQ DIAL 10kHz AMPLITUDE CENTER 2 Set Oscilloscope to 5V DIV 10uS DIV DC Coupling and connect to output terminal 3 Adjust Amplitude Control for 2DIV on CRT 4 Pull out DC OFFSET Control and set to MIN position and check the DC OFFSET level is lower than 10V Lower than 2DIV 5 Set DC OFFSET Control to MAX position and check the DC OFFSET level is higher than 10V Higher than 2DIV 1 3 6 SYMMETRY CONTROL SPECIFICATION MIN lower than 1 10 MAX higher than 10 1 EQUIPMENT Oscilloscope BNC CABLE FEEDTHROUGH TERMINATION 50 Q if necessary PROCEDURE 1 Set this product as follows Function SQUARE LU ATT 0 dB PULL OUT AMPLITUDE CENTER COUNT INT PULL OUT DC OFFSET OFF PUSH IN SYM OFF PUSH IN SWEEP OFF PUSH IN 2 Connect the oscilloscope to output terminal 3 Set the output frequency to 10kHz 4 Pull out SYM Control and ad
9. MD SIG SN7400 SN74S00 1 00U4 I C NS 74F191N 1 00 U18 I C SMD NS HIT PHI SN74HC393 2 00 U10 11 I C SMD NS HIT SGS SN74HC138 1 00U14 I C TOSHIBA ITD62783AP 1 00JU13 C AMD GAL16V8 1 00U9 WIRE ASS Y 136530 JIN PUT CABLE 250mm 1 00 CRYSTAL 10 0000MHz HC 49 U 1 0010M 20PPM MAIN PCB 8210 M12 1 00 SHIELD CASE Zn pl 0 3t 104x40x18 1 00 NUT M3 NI PL 1 00 U15 Ass y SCREW MACHINE M3x8BH NI PL 1 00 U15 Ass y SCREW TAPPING T3x6BH ZN PL 3 00JU37 15 20 SPRING COIL 6x2x7 SHIELD 8 0 00MAIN PCB GND HEAT SINK TR SUG 8 3 214 16 2 00 Q16 29 Ass y HEAT SINK 78SERIES 8 C 2 7 2 2 00 U7 15 Assy HEAT SINK 8210 CAF 17x9x19 1 00 U20 Ass y 21 4 2 Display PCB Parts List Part Name Speci fication Q ty Referance WAFER 8pin YW02508 HE 2 00CN12 13 FND hp HDSP H5134001 1 00JFND SINGLE FND hp HDSP K5134001 3 00 FND1 2 3 LED BL R2130A T 5x5X10 5 00 LED 1 5 DISPLAY PCB 80SER 8210 DIS 01 1 00 4 3 VR PCB Parts List Part Name Speci fication Q ty Referance WAFER 3pin YW02503 Y 5 00JCN8 WIDTH CNO RATE CN2 FREQ CN5 AMP CN6 OFFSET WAFER 4pin YW02504 HS 1 00 CN3 SYM VARIABLE RESISTOR V16L4 7x5 S15KCB10K 1 00 VR5 WIDTH VARIABLE RESISTOR V16L4 7x5 S15KCB5K 1 00 VRA OFFSET VARIABLE RESISTOR V16L4 7x5 S15KCB50K 1 00 VR2 SYM VARIABLE RESISTO
10. N4003 Title 821 0 04 Drawing Design Checked Approved Model POWER SUPPLY CIRCUIT Size A3 Rev 02 Cbr Ante L2 INDUCTOR AUDIO 10n T 100 10V L1 INDUCTOR AUDIO Q5 2N5486 c3 33P y be0P BOX VW ps BNC2 So R170 OUTPUT 6 8n BOX 33 4 C6 A cs U4B 68n BOX VW Ds 0 01 C C 74LS00 1N4148 TTL SYNC OUT rx C84 30P C C L3 U4A INDUCTOR AUDIO 74LS00 R9 _ 1 5K Fi5P C C Ha A a a o AA a ee T E Se NURT gt 03 sw3 6 L o3 SW3 2 gt 03 R46 1 Shield Box Title 821 0 02 Drawing Design Checked Approved Model OSCILLATOR TTL CIRCUIT Size A3 Rev 02 T 7 7 7 7
11. OTTOM CASE RUBBER FOOT BN DAG 32x8 5 4 2 00 TOP CASE EMI GASKET 71TS FK10 R10 170 00 1 00BOTTOM SHIELD CASE ASS Y SHIELD PLATE BN DAG 248X163 0 OOJSHIELD CASE BOTTOM SPONGE PAD 20x40 5T 3 BO 6 00MAIN PCB AC LINE PART KNOB POWER ABS BN DAG 80SER 1 00POWER STICK KNOB PUSH S W ABS BN 80SER 12965 13 00KEY S W SCREW MACHINE M3x6BH H5 NI PL 0 00JSHIELD TOP MOUNT POLE SCREW MACHINE M4x45BH ZN PL 4 00 TOP BOTTOM CASE SCREW TAPPING T3x8BH H6 NI PL 3 00 PCB BOTTOM CASE MOUNTING POLE Pi3x50 524 8210MAIN 1 00MAIN PCB SHIELD CASE WASHER SPRING AZ 3 298 5 ZN PL 1 00SHIELD TOP MOUNT POLE EMI AIR VENT FILTER SUI40 24 125 45 13 2 00 TOP BOTTOM SHIELD FRONT PANEL ASS Y FG 8210 DAGA 1 00 REAR PANEL ASS Y FG 8210 DAGA 1 00 MAIN PCB ASS Y FG 8210 DAGA 1 00 24 4 7 Packing Part Name Speci fication Q ty Referance FUSE UL VDE 50F 250V200mA 20mm 1 00 SPARE FUSE POWER CORD 230V KKP 30 SVT3 18A VDE 1 00 VDE CABLE ASS Y BNC TO CLIP 1 00 STYROFOAM BOX BENCH 300x150x65mm 2 00 SILICA GEL 3g 1 00 STICKER S N 230V BN 80SER 15W200mA 1 00 15w 230V 200mA F MANUAL 8210 FG8210 DAG eii 1 00 INNER BOX 8000SER DAG BN 340x310x165 1 00 CARTON BOX 7 21 44 BN 645x355x365 0 254CTN IN BOX 340x310x165 VINYLE BAG 70x100mm Zipper Type 1 00 SPARE FUSE VINYLE BAG 265x400mm 1 00 PRODUCT 5 CIRCUIT DIAGRAM Refer to Attached File
12. PANEL ASS Y POWER TRANS FG 8210 8220 1 00JREAR PANEL ASS Y I C SAM MOTO NS MC7805 2 00REAR PANEL ASS Y U5 U15 HEAT TUBE Pi5 x 15 mm 3 00AC INLET FUSE HOLDER HEAT TUBE Pi 12 x 60 mm 1 00FUSE HOLDER WIRE ASS Y 1015 22 GND WIRE 180mm LUG 3 00 REAR PANEL ASS Y WIRE ASS Y 1015 22 DIW 120mm BLACK 1 00 AC IN FUSE WIRE ASS Y 1015 22 Spin 2Wire 220mm 1 00 BRACKET POWER TRANS BN DAG 27x10 5 2T 2 00 TRANS REAR PANEL PRESS BN DAG FG 8210 1 00 NUT GND TERMINAL INCH 2 00GND CONNECTOR NUT M3 NI PL 8 00 TRANS REGULATOR FAN SCREW MACHINE M3x10BH EVA 2 00 NOISE FILTER AC INLET SCREW MACHINE M3x16BH SEW 2 00 FAN SCREW MACHINE M3x8BH W NI PL 2 00 TRANS WASHER PLAIN HI 4 3 21 2 10 NI PL 4 00 TRANS AC INLET WASHER SPRING LH 2 3 9 2 5 ZN PL 2 00 TRANS WASHER LATCH 4x6 5x0 3t 1 00 GND CONNECTOR 23 4 6 Others Part Name Specification Q ty Referance C ATMEL AT89C52 1 001012 CABLE TIE 100mm WHITE 10 00 WIRE ASS Y 24 3 3pin 150mm 6 00 WIRE ASS Y 24 4 4pin 150mm 1 00 WIRE ASS Y 8 8pin 220mm 2 00 WIRE ASS V 3 3pin 150mm 1 00 SHIELD CASE 8210 TOP 0 6t 210x202 156 x35 1 00MOUNT POLE TOP SHIELD CASE 8K BOT Znpl 0 6t 210x202x35 1 00MONUT POLE BOTTOM BOTTOM CASE ABS BN 80SER H24 12965 1 00 TOP CASE ABS BN 80SER 94 12965 1 00 HANDLE ABS BN 80SER H24 12965 1 00 RUBBER FOOT BN DAG 37x8 5 CH 2 00 B
13. R V16L4N15KCB10K 2 00 VR6 RATE VR1 FREQ VARIABLE RESISTOR V16L4N15KCB500 1 00 VR3 AMP VR PCB 80SER 8210 VR 02 1 00 4 4 Front Panel Assembly Parts Part Name Specification Q ty Referance BNC CONNECTOR BNC RB 4CUTT I NG 4 000UTPUT TTL SYNC VCF EXT COUNTER IN WIRE ASS Y 2pin 150mm 1 00 VCF WIRE ASS Y 2pin 220mm 2 00 TTL OUTPUT BRACKET VR PCB BN LGP 160x25x30 1 00 BRACKET BNC BN 80SER AG FG 1 00 FRONT PANEL ABS BN 80SER Fe1 12965 1 00 KNOB VR ABS Pi10x13mm DARK GRAY 6 00 PLATE FRONT PC 8210DAG 1 00 ACRYLE FILTER 8210 DAG 1 00 NUT VR 6 00VR NUT BNC F 4 00BNC BRACKET NUT M3 NI PL 2 00BNC BRACKET SCREW MACHINE M3x4BH NI PL 2 00BNC BRACKET SCREW TAPPING T3x8BH ZN PL 5 00 VR PCB WASHER PLAIN Hd 3 2128 12 NI PL 2 00 EXT COUNT IN BNC WASHER PLA I N VR 7 2x12x0 2t NI PL 6 00VR WASHER LATCH BNC 9 5x13x0 5t NI PL 4 00 BNC WASHER PLAIN BNC S 10x13x0 3t NI PL 4 00 BNC DISPLAY PCB ASS Y FG 8210 DAGA 1 00 VR PCB ASS Y FG 8210 DAGA 1 00 22 4 5 Rear Panel Assembly Parts Part Name Specification Q ty Referance FUSE UL VDE 50F 250V200mA 20mm 1 00 FUSE HOLDER IN FUSE HOLDER R3 11 BN 1 00JREAR PANEL ASS Y EMI GASKET 71TS FK10 R10 170 00 1 00JREAR PANEL ASS Y MOTOR FAN DC5V 0 5W 40x40 1 00JREAR PANEL ASS Y GND CONNECTOR 1 00JREAR PANEL ASS Y AC INLET SAM IL NFU 101 NOISE FILTER 1 00 REAR
14. SERVICE MANUAL MODEL FG 8110 SWEEP FUNCTION GENERATOR CONTENTS PERFORMANCE CHECK PROCEDURE ADJUSTMENT PROCEDURE TROUBLESHOOTING PROCEDURE PARTS LIST CIRCUIT DIAGRAM 1 PERFORMANCE CHECK PROCEDURE 1 1 General This section contains the Procedures required to check and maintain specified instrument performance The adjustments should be performed at an ambient temperature of 23 C 5 C and a relative humidity of less than 60 It allows the instrument to stabilize at this environment for a minimum of 30 minutes 1 2 Equipment s required Table 1 1 is shown test equipment s required ki Table 1 1 Eguipment s required Equipment name Specification Frequency Counter DC to 60 MHz Osci loscope DC to 20 MHz 0 01 100kHz 6 Signal Generator 200mHz to 110 MHZ 7 FEEDTHROUGH TERMINATION 509 1 3 Performance check 1 3 1 OUTPUT FREQUENCY RANGE SPECIFICATION 0 1 Hz TO 10 MHz ACCURACY 5 OF SETTING EQUIPMENT FREQUENCY COUNTER BNC CABLE FEEDTHROUGH TERMINATION 50 Q if necessary PROCEDURE 2 Set 8210 as follows Function SINE WAVE TU ATT 0 dB PULL OUT AMPLITUDE CENTER COUNT INT PULL OUT DC OFFSET OFF PUSH IN SYM OFF PUSH IN SWEEP OFF PUSH IN 2 Connect the frequency counter to output terminal 3 Set the frequency counter to frequency measurement 4 Set the output frequency of this product by FREQUENCY RANGE and DIAL and ve
15. age at the left leg of R108 It should be around 5V Check the voltage at the anode of D16 It should be around 1 4 1 5V Check the voltage at cathode of D16 It should be around on 0 7 0 8V O O G B 18 4 PARTS LIST 4 1 Main PCB Parts List Part Name Specification q ty Referance CER CAPACITOR 0 01uF50V 10nF 2 00 C100 101 CER CAPACITOR SMD 3pF 1 00 C72 CER CAPACITOR SMD 15pF50V 1 00 C9 CER CAPACITOR SMD 22pF50V 1 00 C87 CER CAPACITOR SMD 30pF50V 2 00 C54 C84 CER CAPACITOR SMD 33pF50V 1 00 C82 CER CAPACITOR SMD 50pF50V 2 00 C01 C02 CER CAPACITOR SMD 0 01uF50V 10nF 12 00 C2 8 15 29 31 33 34 39 45 47 90 91 CER CAPACITOR SMD 0 1uF50V 100nF 25 00C17 19 49 53 56 59 61 67 71 74 76 78 80 81 94 202 CER CAPACITOR SMD 130pF50V 3 00 C10 38 41 CER CAPACITOR SMD 150pF50V 2 00 C13 66 CER CAPACITOR SMD 1 5pF50V 1 00 C73 CER CAPACITOR SMD 470pF50V 1 00 C44 CER CAPACITOR SMD 4700pF50V 4 7nF 2 00 C85 86 TRIMMER CAPACITOR CTC05F500 50pF 2READ 1 00 T1 MICA CAPACITOR 33pF 63V 1 00 C3 MICA CAPACITOR 680pF 63V 1 00C4 M F CAPACITOR 0 47uF250V 1 00 C37 M F CAPACITOR BOX 0 0068uF 63V 6 8nF 1 00C5 M F CAPACITOR BOX 0 068uF 63V 68nF 1 00 C6 M F CAPACITOR BOX 0 68uF63V 680nF 1 00C7 MYLER CAPACITOR 0 22uF100V 220nF 1 00 C36 ELEC CAPACITOR 10uF35V 1 00 C55 ELEC CAPACITOR 22uF16V 10 00 C1 12 14 22 23 25 28 30 32 35 ELEC CAPACITOR 47uF35V 6 00 C27
16. i24 po lo 1 13 pi n 14 po i L3 05 U18 14 15 F3 13 H 05 U18 7 s 14 05 U18 6 rs 15 m F6 l6 22 F7 17 18 19 UTOA 74LS393 Lop a QA H3 P1 0 QB P1 1 C P1 2 icr aH 3 U10B i Bi 74LS393 P2 3 P1 6 13h A QA HL I 25 1 554 P17 GB HA 26 P2 5 l ac H 15 P26 RXD 121cR QDH 5 ri TXD ain INTO 7418393 Tu ud Lop A QA H fen ap L4 39 1poo EAVP ac H 14 PO 1 RESET aR op s P0 2 xi UTE 38 pod 7418393 34 pos E Lacks QA P0 6 Bu sp fm P e QC 124 ciR GD H ae U14 74LS138 05 SW5 5 e 8210 06 Model CPU CONTROL CIRCLE Drawing Design Checked Approved Size A3 Rev 02 Sheet 6 of 6 Scale 21 Sweep Width Sweep Rate Frequency EEEE EEEE ll 2 D8 1N4148 4 J8 swi CN8 R70 15V SWEEP WIDTH 1K je 1 VR5 2 10KB 3 15V R73 d 7 5K c3i_ J9 0 01 C C A5 CN9 R71 39K VR6 2 1 10KB 2 3 Q17 2N3906 R72 33 i L D9 R77 1N4148 10K C33 01 C C _ 15V Ji R300 R2 R4 CN1 470 1K 220 1 n e 2 al T lt C304 R1 R9 104 10K 2 2K SFR6 las 10KB i j R3 1K q J2 6 at CN2 2N3906 U1A VRt 1 GL324 10KB 2 R8 R10 E m L 1K 2 2K 4 R114 SFR1 21V 10KB i Mi xl ee ee gees d l C29 C28 I SFR2 0 01 C C A5 22 25V l l l l l l l l 15V I l l l R6 l f 1K i i SFR5 i 10KB l l re 29 1 2 I I R7 0 22uF NL 22 16 I I 7 5K
17. itch 20 dB and cable connection from CN7 to Output terminal 3 2 3 Square Wave Out put Check the Function switch operation and select Square Wave Check the waveform at Di of DD1 Cathode The Triangle Wave should be appeared Check the waveform at D2 of DD1 Cathode The Square Wave should be appeared If not check the step 3 2 2 4 and 5 Check the waveform at 9pin of U3 The Square Wave should be appeared If not check the operation of U3 Check the waveform at R45 The Square Wave should be appeared If not check the step 3 2 2 8 and 9 NOD O N 3 2 4 Sine Wave Out put 1 Check the Function switch operation and select Sine Wave 2 Check the waveform at Q7 Emitter The Triangle Wave should be appeared 3 If not check the step 3 2 2 4 and 5 4 Check the waveform at Q11 Collector The Sine Wave should be appeared a If not check the operation of Sine Shaper 08 09 010 011 6 Check the waveform at R45 The Sine Wave should be appeared If not check the step 3 2 2 8 and 9 3 2 5 TTL Output 1 Check the connection of cable for TTL Output terminal and Control Volume 2 Check the waveform at Pin 9 of U3 The Square Wave should be appeared 3 If not check the step 3 2 3 4 Check the waveform at pin 6 of U4 The TTL Level Square Wave should be appeared 5 If not check the operation of U4 3 2 6 Sweep Operation Width and Rate 1 Check the cable connection CN8 CN9 for Width and Rate Control Vol
18. just to Min position And check the symmetry duty ratio is lower than 1 10 5 Adjust SYM Control to Max position and check the symmetry duty ratio is higher than 10 1 1 3 7 SWEEP FUNCTION SPECIFICATION Sweep Width 1 1 to 100 1 Sweep Rate 0 5Hz to 50Hz 20mS to 2 S EQUIPMENT Oscilloscope Frequency Counter BNC CABLE FEEDTHROUGH TERMINATION 50 Q if necessary PROCEDURE 1 Set this product as follows Function SINE WAVE TU ATT 0 dB PULL OUT AMPLITUDE CENTER COUNT INT PULL OUT DC OFFSET OFF PUSH IN SYM OFF PUSH IN 2 Connect the oscilloscope and Frequency Counter to output terminal 8 3 Set Freq Range to 10k and adjust Freq Dial to 1 00 kHz Start Frequency 4 Pull out SWIDTH Control and adjust to max position 100kHz Stop frequency 5 Adjust Sweep Rate Control for desired rate and check sweep operating 1 3 8 VCF IN FUNCTION SPECIFICATION Out put frequency should be changed from minimum frequency to maximum frequency in each frequency range by changing VCF INPUT Voltage from O to 10V DC EQUIPMENT Power supply BNC CABLE PROCEDURE 1 Set this product as follows Function SINE WAVE U Frequency Range 10K Frequency Control Max ATT 0 dB PULL OUT AMPLITUDE CENTER COUNT INT PULL OUT DC OFFSET OFF PUSH IN SYM OFF PUSH IN 2 Set Power Supply to OV and connect to VCF IN Terminal 3 Check the output frequency is 1 00
19. kHz 0 2kHz 4 Increase the output voltage of Power Supply up to 10V and check the output frequency as following table NEN RN 1 000 kHz 0 2kHz 6 000 V 60 00 kHz 12 kHz 8 000 V 80 00 kHz 16 kHz 10 00 V 100 00 kHz 20 kHz 1 3 9 FREQUENCY COUNTER SPECIFICATION Frequency range 200mHz to 110MHz Input sensitivity 100mVrms EQUIPMENT Sig PRO 1 2 3 4 Cor 5 a lt a b G 2 2 1 Rem 2 2 a nal generator CEDURE Set the COUNT to EXT PUSH IN Connect the signal generator to EXT COUNT IN terminal Set the signal generator to 100mVrms 200mHz and check the reading of 8210 Vary the output frequency from 200mHz to 110MHz and check the 8210 displays rect frequencies Push in LPF Low Pass Filter and check the LPF is working 3dB 0 2dB point at pprox 120kHz Check procedure gt Apply 120KHz signal with minimum input level into EXT COUNT IN Push in LPF switch and check gate time Frequency display is stopped Increase input level and check the gate time Frequency display is starting to and check the input level is increased about 3dB 0 2dB from minimum input level ADJUSTMENT PROCEDURE Preliminary Set up ove top cover Apply power and allow at least 30 minutes for warm up Power supply Check the voltage in each position according to table 2 1 Table 2 1 Power supply outputs Check position Supplying Voltage Output Pin of 5V 0 5V U6 15 Assemb
20. led U6 15 20 at Rear panel Output Pin of US Output Pin of U7 on j Anode of ZD o Upper leg of RB 21V s 2V 2 4 PRE ADJUSTMENTS EQUIPMENT Oscilloscope BNC CABLE FEEDTHROUGH TERMINATION 50 Q if necessary PROCEDURE 2 4 1 TRIANGLE WAVE OFFSET 1 2 Set the oscilloscope to 0 5V DIV 20uS DIV DC Coupling and set the vertical Set this product as follows Function TRIANGLE WAVE w ATT 20 dB PUSH IN AMPLITUDE MIN FREQUENCY 10kHz COUNT INT PULL OUT DC OFFSET OFF PUSH IN SYM OFF PUSH IN position to horizontal graticule center 3 Connect the oscilloscope to output terminal 4 Set AMPLITUDE control for 2DIV on CRT and adjust SFR15 OFFSET ADJUSTER for OFFSET of waveform The waveform should be in center 0 1DIV from horizontal graticule center 2 4 2 SQUARE WAVE LEVEL Set this product as follows 1 Function SQUARE WAVE T I ATT 0 dB PULL OUT AMPLITUDE MAX FREQUENCY 10kHz COUNT INT PULL OUT DC OFFSET OFF PUSH IN SYM OFF PUSH IN Change the function to SQUARE WAVE Set the oscilloscope to 5V DIV 20uS DIV Check the output level of Square Wave is more than 17Vpp 0 2 4 3 SINE WAVE LEVEL Adjust Set this product as follows Function SINE WAVE 7 7 ATT 0 dB PULL OUT AMPLITUDE MAX FREQUENCY 10kHz COUNT INT PULL OUT DC OFFSET OFF PUSH IN SYM OFF PUSH IN Cha
21. nge the function to SINE WAVE 3 Set the oscilloscope to 5V DIV 20uS DIV 4 Adjust SFR10 SFR13 for displaying 4DIV on CRT SFR10 DIV from horizontal graticule center for up side of waveform SFR13 DIV from horizontal graticule center for down side of waveform 2 4 4 SINE WAVE DISTORTION ADJUST EQUIPMENT Distortion Analyzer BNC CABLE FEEDTHROUGH TERMINATION 50 Q if necessary PROCEDURE 1 Set this product as follows Function SINE WAVE TU ATT 0 dB PULL OUT AMPLITUDE Max FREQUENCY 10kHz Connect Distortion analyzer to Output terminal Adjust SFR8 SFR11 SFR12 for minimum distortion reading on Distortion analyzer less than 0 5 2 4 5 AMPLITUDE CONTROL AND ATTENUATOR CHECK EQUIPMENT Oscilloscope AC Millivoltmeter BNC CABLE FEEDTHROUGH TERMINATION 50 Q PROCEDURE 1 Set this product as follows Function SINE WAVE TU ATT 0 dB PULL OUT AMPLITUDE CENTER COUNT INT PULL OUT DC OFFSET OFF PUSH IN SYM OFF PUSH IN SWEEP OFF PUSH IN Connect the oscilloscope through FEEDTHROUGH TERMINATION 50 Q to output terminal Set Amplitude Control to Min position and check the output level is lower than 1Vp p less 5div in 200mV div Set Amplitude Control to Max position and check the output level is higher than 10Vp p higher than 4div in 5V div Set Amplitude Control to Min position and connect AC Millivoltmete
22. nic Distortion THD lt 1 10Hz to 100kHz EQUIPMENT Distortion analyzer BNC CABLE FEEDTHROUGH TERMINATION 50 Q if necessary PROCEDURE 1 Set this product as follows Function SINE WAVE TU ATT 0 dB PULL OUT AMPLITUDE CENTER COUNT INT PULL OUT DC OFFSET OFF PUSH IN SYM OFF PUSH IN SWEEP OFF PUSH IN 2 Connect the distortion analyzer to output terminal 3 Check the distortions of output signal are less than 1 from 10Hz to 100kHz 1 3 4 TRIANGLE SQUARE WAVE CHARACTERISTICS SPECIFICATION Linearity of Triangle Wave gt 99 10Hz to 100kHz Rise and Fall Time of Square Wave Less than 120nS at 10MHz Max output level EQUIPMENT Osci I loscope BNC CABLE FEEDTHROUGH TERMINATION 50 Q if necessary PROCEDURE 1 Set this product as follows Function TRIANGLE WAVE w ATT 0 dB PULL OUT AMPLITUDE CENTER COUNT INT PULL OUT DC OFFSET OFF PUSH IN SYM OFF PUSH IN SWEEP OFF PUSH IN 2 Connect the oscilloscope to output terminal 3 Check the linearity of Triangle wave from 10Hz to 100kHz 4 Change the function to SQUARE WAVE T 14 and check the rise and fall time at 10MHz Max output level 1 3 5 TTL OUTPUT SPECIFICATION TTL OUTPUT Rise and Fall Time Less than 25nS Output Level TTL LEVEL H gt 2 4V L lt 0 4V EQUIPMENT Oscilloscope BNC CABLE PROCEDURE 1 Set this product as follows FREQ RANGE 10k
23. nter Display Reduce the output level of Signal Generator Slowly and adjust SFR16 for Minimum input sensitivity as possible as less than 100mVrms 5 Change the out frequency of Signal Generator from 110MHz to 200mHz and check the minimum input voltage is less than 100mVrms 6 Push in LPF Low Pass Filter and check the LPF is working 3dB 0 2dB point at approx 120kHz Check procedure gt a Apply 120KHz signal with minimum input level into EXT COUNT IN b Push in LPF switch and check gate time Frequency display is stopped c Increase input level and check the gate time Frequency display is starting to and check the input level is increased about 3dB 0 2dB from minimum input level 3 Troubleshooting Procedure 3 1 Troubleshooting techniques 3 1 1 Check the function selector and switch setting Incorrect switch settings can give a false indication of instrument malfunction If there is any question about the correct function or operation refer to OPERATOR S MANUAL 3 1 2 Check associated equipments before proceeding ensure that any equipments used with this product is operating correctly and verify that out and input signals are properly connected and that the interconnecting cables are not defective 3 1 3 Visual Check Look for broken terminals damaged components mounting status of components damaged circuit boards or other clues to the cause of a malfunction 3 2 Troubleshooting procedure 3 2
24. r to output terminal Set the Range of AC millivoltmeter to 3V range and adjust Amplitude control for OdB reading on AC millivoltmeter Push in 20dB ATT switch and check the reading of AC Millivoltmeter is 20 dB Check the amplitude of TRIANGLE amp SQUARE WAVE same as paragraph 3 to 7 2 5 FREQUENCY RANGE ADJUSTMENT EQUIPMENT Frequency Counter BNC CABLE FEEDTHROUGH TERMINATION 50 Q PROCEDURE 1 Set this product as follows Function TRIANGLE WAVE w ATT 20 dB PULL OUT AMPLITUDE CENTER COUNT INT PULL OUT DC OFFSET OFF PUSH IN SYM OFF PUSH IN SWEEP OFF PUSH IN Connect the Frequency Counter to Output Terminal Set Frequency Range to 1M and Frequency Control Dial to MAX Position Adjust SFR1 for 10 500 MHz frequency reading on counter Change Frequency Range to 100k and adjust SFR2 for 1 0500 MHz frequency reading on counter 5 Change Frequency Range to 10k and adjust SFR3 for 105 00 kHz frequency reading on counter 6 Change Frequency Range to 1k and adjust SFR4 for 10 50 kHz frequency reading on counter 7 Change Frequency Range to 100 and adjust SFR5 for 1 050 kHz frequency reading on counter 8 Change the frequency range to 10 and 1 and check the frequency reading in each range 10 105 00 Hz 1 10 500Hz 9 After adjustment check the frequency Control Dial at MIN and MAX as following table 8210 setting Tolerance Frequency
25. rify counter frequency reading as follows I A 100 00 kHz DIM 10 000 kHz 1 0000 kHz OE 100 00 Hz 10 000 Hz TRE 1 0000 Hz SL 3 100 00 mHz For reading less than 200 mHz you can read by period value 200mHz 5 000 sec 100 mHz 10 000 sec 1 3 2 AMPLITUDE AND ATTENUATION SPECIFICATION Amplitude range 100mVp p to 10Vp p IN TO 50Q Attenuation 20 dB ACCURACY Lower than 100mVp p IN TO 50Q at MIN Higher than 10Vp p IN TO 50Q at MAX EQUIPMENT Osci I loscope AC Millivoltmeter BNC CABLE FEEDTHROUGH TERMINATION 50 Q PROCEDURE 1 Set this product as follows Function SINE WAVE X 7 AIT 0 dB PULL OUT AMPLITUDE CENTER COUNT INT PULL OUT DC OFFSET OFF PUSH IN SYM OFF PUSH IN SWEEP OFF PUSH IN 2 Connect the oscilloscope through FEEDTHROUGH TERMINATION 50 Q to output terminal 3 Set Amplitude Control to Min position and check the output level is lower than 100mVp p less 5div in 20mV div 4 Set Amplitude Control to Max position and check the output level is higher than 10Vp p higher than 4div in 5V div 5 Set Amplitude Control to Min position and connect AC Millivoltmeter to output terminal 6 Set the Range of AC millivoltmeter to 3V range and adjust Amplitude control for OdB reading on AC millivoltmeter 7 Push in 20dB ATT switch and check the reading of AC Millivoltmeter is 20 dB 1 3 3 SINE WAVE CHARACTERISTICS SPECIFICATION Total harmo
26. ume 2 Vary the Width volumeand check the level of Pulse at pin 7 of U2 is varied 3 Vary the Rate volume and check the period of Pulse at pin 14 of U2 is varied 4 f not check the operation of U2 C D D9 and Q17 17 3 2 7 Frequency Range and Frequency Dial 1 2 Check the cable connection from CN2 Main Board to Frequency Control Volume Check the operation of Range selector switch Key Switch operation 3 2 8 Attenuator 20dB 1 2 Check the operation of each Attenuator switch If not working check the R146 147 148 3 2 9 Frequency Counter INT EXT 1 2 Check the INT EXT selector switch operation and set to INT Check the output frequency at Output terminal by using Frequency counter and check the frequency at R83 is same with output frequency Check the frequency of reference signal at pin18 and 19 of U12 It should be 10 000MHz If not check Reference Oscillator X1 T1 C54 5 Check the frequency at pin3 of U9 and pin 7of U18 It should be same as output frequency If not check the operation of Input Amplifier and Devider Q18 Q19 U8 Q20 Q21 U18 7 Check the cable connection between CN12 main board and CN13 Display Board 8 Check the operation of Counter Circuit Micro processor U12 Driver U4 5 Scanner U10 11 Check the operation of Display Controller U13 U14 Q22 28 on Display Board Check LPF function as follows Check the status of LPF S W push in Check the volt
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