C.P.U. EXORCISOR PRELIMINARY USER MANUAL
Contents
1. 2 4 WE ars zi 25 36 Se C 7a 745288 745288 655 7825 ___ __ _ ____ LU11 LU11 T1 LT11 13 13 13 113 13 LT13 LT13 13 13 13 113 13 LT13 LT13 113 13 LT13 J14 1J14 J14 1 1 1 1 1 3 4 7 1 1 1 1 2 5 1 2 5 12 1 1 1 1 1 12 1 11 11 5 11 11 5 13 13 13 13 13 13 3 13 4 13 7 13 8 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 5 13 6 13 9 J14 0 J14 1 J14 J14 3 390P J14 19AP 14 1 f H666 Appendix cnt d Schematic SHT4 SIGNATURE SIGNATURE 7415194 P6AF LP13 4 S 6 0095 13 996 22 3 ies 221 480P _______ 2 R11 R11 R11 R11 9 amp 1 eS ees 70F4 98A7 H9FP 5 5 et A8H3 6 47 _______ C781 67C8 9AC5 C428 8C81 7 E 41515 22 77 ee 1 Rei us 33 3 77415165 Herp _______2. __ _ ye ed Pesu fF 745288 51 4 7341 2518 l 1846 615F 05 8399 7415107 61C3 2293 615F 0000 41510 615F 0000 ____ 6152 0000 30AP 197 2379 a 745288 62 7 680 283 0240 i ope 0OC45 ____ ____ 4 AC5H T F1CH G10 12 oF cio 73 404 cioj 14 _ 8233 010 15 _____ 1 3200 530 1 02 394 8PP6 KA KOLS 614 G14 G14 G14 614 614 614 614 G14 G14 ERES F14 F14 2 F14 F14 F14 214 F14 214 14 14 E14 LE14 14 E14 E14 E14 E14 E14 E14 Appendix cnt d Schematic SHTS SIGNATURE SIGNATURE C443 59 9 74LS157 1285 FC92 59 12 UUF5 __________5 5 R9 4 74LS157 7 H162 5 UPAP 9 E667 6 HAOO 12 FA45 4 74LS157 4473 ____ 0 1 12 f 4U1H 1J14 1 86F5 1J14 1 2 UUPU MIRR CLIS mH 4 11 A98H UM2 i 18296
3. 4 2 0 1J12 10 AAP8 4 3 UCCC 1J12 11 00 4 4 PF3C 1J12 12 PF3C 5 1J12 13 UCCC m4 6 1J12 14 eosa 7 1J12 15 958 LMi4 21 F6C6 OH 4 9 o Heu O 4 11 5 1 Appendix cnt d Schematic SHT3 SIGNATURE ca SIGNATURE P6AF F49 8C81 0 9398 04 9686 051P 1776 H9P9 7415157 Co Sa O 9AC5 AF A928 74LS157 O Bo 744585 428 615F A197 237P 67C8 8OHP 29A9 _ PHO7 SURE __________ 8281 _ 74LS85 0PF5 Lo 510F A8H3 anes C428 a CE 8CC5 fe ee eee __ 1 ee el 1 2 3 4 1 1 1 14 1 5 1 2 3 4 1 1 14 1 2 3 5 1 6C47 47F6 A69C 2 a C781 96FC LM9 5 He9P9 or ____ _ 10 ___ il 9 2 2n pig 13 pio 74 9 pig 15 2469 CERN e LN6 2 NG SS H10 N9 N9 N9 N9 N9 N9 N9 N9 N9 N9 N9 N9 N9 M9 M9 M9 M9 M9 M9 M9 M9 M9 M9
4. A8H3 12 80HP 11 10 _ 2949 13 7 11 75 _ 7323 Sst _ 2 6961 72 76F5 5 765 H10 LN9 9 9 9 9 9 t14 6 9 9 9 LN9 LN11 6 LN9 LN9 LN9 M9 M9 LN11 9 M9 M9 LM11 6 M9 M9 M9 M11 M11 9 Appendix cnt d SIGNATURE 2 515181 60P1 Schematic SHT3 L6 8 _ 6 19 __ F469 16 20 9 6 21 PH6F 6 22 6HF3 pie 23 211U 8 IO BTCA _ _ 6 13 627 6 15 235P 2180 LN6 19 __ 6152 20 C428 NG 21 8 LN6 22 945 LN6 23 9 Jo o f Io O 10 _ 8236 LN6 11 304P LN6 13 FC6A LN6 15 PNG 717 3HC Me 1 2515181 OPF5 LM6_ 2 _ 5106 Me 3 6OP1 4 6OP1 me 5 ____ 2A 6 Ho91 7 2632 8 u Me 48 71 19 aec 20 647 Me 21 46 2 23 805 M6
5. 4 73 SAH4 74 87UC Se 6 2 TrP7 2 FA45 reo 4 So H62 6 UUF5 ee ee sl ie 8 On 19 fH ASEEH 28 31247 vi 7 8066 7211 6 _ 84 ere o l 22 09 U62F A8 8 7445107 0000 A8 11 0000 SS F10 6 74511 61H3 2AF1 7 2AF1 7 2FOH 73HU F745 aes 2AF1 HA98 P781 8HA7 AC18 F55H 2AF1 7C77 C962 9855 74LS157 79515 801 1 gt N S11 9 11 11 11 11 11 R11 9 R11 R11 R11 R11 R11 P11 9 P11 P11 11 11 59 59 Appendix cnt d Schematic SHTS IC IC TYPE SIGNATURE 74LS151 30AP Hi 018F 8H73 11 74 508 Lo 2 o zei EE F10 9 f 4C4H F10 79 F10 7 741 502 2 ______ ___ 2 _________ 3204 in il 802H 6H37 F10 OF96 FiO 14 4054 IF10 15 8233 6 F384 61H3 A12 3 390PI2AF1 e a 9 7458 2PFF 10 8 0646 49 2 49 2
6. ee 2 hk UE E 8cU 0841 242 22 22 22 R2 22 R2 22 R2 22 _ 22 R2 22 1 6 10 9 __6__ 4 1 1 1 1 1 1 1 1 1 1 R R R R R R R R R R R R R N N N N N N N N N N N 13 12 1 3 13 14 4 5 7 10 11 12 F2 F2 F2 F2 F2 F2 F2 F2 F2 F2 F2 F2 469 Appendix cnt d SIGNATURE 7 4 Lo Schematic SHT2 41519 C5F6 HAC9 13 4 2 1 SR2 21 L2 9 74850 clk1 _ CH ins 28 LN4 14 166U 6002 1 74LSOO 7P23 6 2 1 J6 3 046 F6A4 41UC FC5H FC5H ___ 8236 0406 _ F12C 744510 49P2 _ clk2 1C14 8236 304P 54 6 FC6A s4 10 2H8F 1S4 CSF6 87 42 46126 2 P38A O 54 13 54 15 002 4 5000 5 34CP Paj 6 66UU Paj 0 fo 2AF __ Paj 9 o 1205662 1 7 002 741510 LR4 4 500 LR4 5 34CP 6 LR4 10 2H8F 0 95E6 2 LR4 7 PF567 12
7. 2 4 Digit or better Digital Multi meter DMM w leads 16 pin DIP Clip Ball Clip E Z Hook clip leads various lengths Cinematronic CPU Schematics w signatures SETTING UP THE EQUIPMENT HPS004A Self Test This section covers the Self Test feature of the HP5004A If you are using a different type of Signature Analyzer you must refer to it s user manual for the Self test operation 1 Remove the grabber connectors from the pod test leads and connect the pod START STOP and CLOCK leads to the matching START STOP and CLOCK receptacles on the 5004A front panel 2 Connect the 5004A data probe to the PROBE TEST receptacle on the 5004A front panel Push the probe tip point gently and firmly into the PROBE TEST receptacle until the point is help securely 3 Connect the 5004A power cable to the correct power source and set the 5004A front panel as follows Test A Switch Settings START IN STOP IN CLOCK IN or OUT Displays Four seven segment UP73 then ACA2 Gate flickers Unstable Signature flickers except when good signature is on Probe tip light Flickers when 2 is on Test B Switch Settings START OUT STOP OUT CLOCK IN or OUT Displays Four seven segment 3951 then 2P61 Gate flickers Unstable Signature flickers except when good signature is on Probe tip light Flickers when 2P61 is on Note In SELF TEST mode the seven segment displays first have all seven segments lit diml
8. 92 SRAT 4 2 LR4 15 HAC9 NN 4 61CA 5 91CC 6 6121 10 2H8F Appendix cnt d Schematic SHT2 amp SHT3 SHT3 SIGNATURE 7 8 SIGNATURE AAP8 425 ____ __ 1 13 2 1 000 _ _____ 065 2 6 P4 15 7252 2 13 12 _ 7 61CA nz 15 PPC3 5 oce 6 _ 6121 212 23 4A50 0 298 212 4 440 LM4 9 56 LM4 7 725C 4 9 LM4 12 11 A29F 13 0841 ENA 13 A928 4 15 615F 15 1 0038 in ram KN 3 UCC 80HBE LH12 5 1 29A9 4 5 __ 6 2 Por __ __ H12 9810 7 1 12 OPH1 LN14 21 LH12 13 54CC 12 14 9 50 H12 15 J o _7 J Mma 9665 4 LIM14 73 476 1J12 4 15 A69C 4 ROO86 12 7
9. CLOCK signal will show 0000 signature CLOCK signal TTL level HIGH E TTL level LOW Lower 274 signature obtained with Ne edge CLK button IN Signature obtained with J12 amp 112 pin 10 tied to GND Signature available with NO JMI option jumper removed 22 Appendix 93151939 WVU Fri 394301036 3 WALSAS 16 a 2 315193 4 55 NOLLONYLSNI 6 HALNNOT 55 7136 a f aas 5 193135 viva 12313 4013 LEEEL 1 OL 9 2 p A 73INYd 3151939 5 08 OL 193136 09320 AV dSIQ noud S HO1IAAS NOILdO 3WVD HORE HILNNOD OULNOD NIOJ 250 NIOD 01 35 MM 6 1 1231 2 NNOD Er NNOD wf NNOD NNOO 23 Appendix EXAMPLES USEFUL MANUFACTURERS LITERATURE Schematic Package 72 10626 02 Rev J Schematic Diagram with Signatures Cinematronics Inc Application Note AN 222 4 Guidelines for Signature Analysis Understanding the Signature_ Measurement Hewlett Packard Inc Publication Number 5952 7684 Application Note AN 222 6 Troubleshooting with Composite Signatures Hewlett Packard Inc Publication Number 5952 7684 24
10. 19 1H2A tae Sf 66205 C530 P04 as ____ AOE ME2MN 4 e300CC ES 0 22 11 04962 a UGS 06 6 74563 P2 17 _ 7252 PEON 592234 pe 12 J R 7 W LDP6 13 76 P2 8 2 14 18 HAC9 15 6P3U 14 15 4LS16 1P24 0000 11 12 AB e 2 15 2 16 a 2 6 249 SS 1 1 1 2 1 4 1 1 6 e 0495 P415 ce 11 12 0495 13 _____ 1 24 pce 14 Awu 15 009 _ lt 02 10 LU2 13 HAFA 12 HAFA C6 6 6 1H2A C7P5 58 C530 N C 2ACF ae V 0 Ul 0 9 0 UT NIN N 4LS37 OU1F 0841 et _ 242C ie e il 5 5 2 6 9 1 4 3 7 26 U wo 20 Appendix cnt d Schematic SHT6 IC SIGNATURE SIGNATURE ee M2 7 74LS377 67HU 8 166U 18 432 5 8A2A 5 6P3U 12 8A2A 21 Key for Appendix clk1 clk2 Hi Lo nnnn mmmm nnnn nnnn
11. 7890 ae eee A12 13 F9U6 6PF3 n 74LSO02 1846 I8 2 74LSO4 204A 5100 J8 9 7456 __ 97 __ 3200 J8 ER ee pe ee FS567 J8 722 0C45 Sm 3 FPP22 TI CUH7 F567 6 3 74527 1P02 6 6 26596 774P 10 7454 6598 B14 2 0328 6 13 74LS164 9820 nl 12 741502 gt gt gt ZSS 2 5 Ooi Sac a 0 5 oj 6 of 1 0 3 5 a 44 10 Lees 4 9 28179 NIS 84 3 74LS10 9820 814 5 PF567 74LS32 9820 1B14 6 3P10 74LS32 C9UC 2873 Appendix cnt d Schematic SHT6 SIGNATURE SIGNATURE pes 11 9 2 52 4 12 8 amp 2 3 FoP pes 13 52 177 0022 E8 14 095 52 3 28 1 513 52 7 UAC5 2 26U2 22 8 651H 28 3 1825 52 8 PF567 4 9890 J 522 5 6P3U E8 5 S2 15 6P3U pes 6 52 2 8A2A Pee 7 J 52 16 6P3U s2 2 _ 37 E6 7 f 390 S2 6 3796 E6 698 S2 56 LE6 11 90P2 S2
12. E Oooo is ___ 7 415163 98A7 70F4 480P C32P 390P Po 2 74LS157 96FC P9 5 A2F9 99F8 11 A928 2CAP 615F 38P3 PoJ 7 7 9UCC 9 0499 4 Pe6AO ee 9810 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 5278 13 13 13 13 13 R13 R13 R13 R13 R13 R13 R13 R13 R13 R13 R13 R13 R13 R13 R13 R13 11 11 11 11 11 11 11 11 11 11 11 11 R11 11 5 0 2 3 4 5 3 4 7 3 4 7 8 2 5 2 5 6 9 3 4 5 1 2 7 1 2 3 4 3 4 R Appendix cnt d 4 7 74588 400 4 3 41UC ae Schematic SHT5 IC TYPE SIGNATURE 74510 C004 8884 1106 74S158 _ 5182 0240 745158 6H37 4 4819 5547 1106 7P23 C rs 8884 De ___ 74S287 _ 5H61 AO 514 9 5AA5 petaj 2 17323 ea 3 CH9A ____ AH 0100 7415163 802H 8UC2 7 0 9 of 13 9673 ee of 1 9 004 2293 62 7 680 283 9673 745287 51 4 0240 283 2293 62 7
13. an IC will not always cause bad signature at it s output An inverted signal will always have the same signature as it s non inverted source signal Appendix Schematic SHT1 Schematic SHT2 SIGNATURE SIGNATURE 7 7 a 112122201271 HAFA _ ed o 10 12 5 UAC5 II 54 11 PHO7 72 3 F6A4 LE4 10 29 T2 6 2 24 80HP T2 90 F97P 9 90622 1 4 9 745100 49P2 5 hH 10 11 2 7 8 Fa 8 52 EAER R E 86 11 7454 3922 22 1 74LS257 49P2 86 10 f 32 9172 26 9 7457 492 li F6 10 AS522 HAC9 ER 1 P38A 2 Lo 30CC A6 8 7452 Lo FUC5 6 9 a e _______ 5 e 9069 725C A6 10 9069 i 13 7454 H28U 12 H28U 1 74LS259 PHO7 69 47F6 8 5 510F 49P2 26PP 67HU 166U C432 CUfF ar 2 __ 2 2 2 2 2 2 2 2 2 2 2 2 2 2 T 0000 TH 1 55 z cAU T w
14. the switches on the signature analyzer as follows HP5004A Switch Settings START IN negative edge STOP OUT positive edge CLOCK OUT positive edge With the analyzer s data probe verify the following signatures at the specified locations DIP plug D8 signature 4 7825 5 655C 9 802H 10 6PF3 11 8UC2 14 2518 15 0000 16 U6HH Verifying the Exorcisor output signatures cnt d DIP plug U14 DIP clip N2 DIP clip R2 Dip clip T2 pin signature 9 5555 10 CCCC 11 12 5H21 13 OAFA 14 UPFH 15 52 8 16 HC89 signature 4 F469 7 PH6F 9 211U 12 H28U signature 4 A69C 7 47 6 9 8 5 12 510F pin signature 4 615F 7 A928 9 A29F 12 96FC Preliminary CPU Operational Testing There is a certain minimum operation level which the CPU board must meet before the Exorcisor can be used for fault diagnostics The 20MHz oscillator circuit IC I2 XTAL R2 R3 and C59 must be operating The IC s H2 74S113 and J4 74265 must also be operational and generating the four clock signals CLK1 CLK1 CLK2 and CLK2 Refer to Sheet 1 of the schematics and with the oscilloscope verify that these clock signals are present Note that the CLK1 signal s amplitude will be attenuated when the Exorcisor is connected this is normal The signal _ at IC B6 pin 2 741 504 must be at a TTL High V gt 2V If these requirements are not met the Exorcisor wil
15. 12 74807 U6HH 13 3 98 11 665F pce 8 C32P ee Hi 6 1 5 ____ ee i 7425 6H37 4819 ll ee EN a 11 12 13 1 4 2 3 12 IC IC TYPE SIGNATURE 7 D10 D10 8 8 8 8 8 FC4H 8884 74LS00 0000 741 502 67 741 504 5547 _________ 9 5547 741500 2518 51C4 36C4 4819 67AH 36C4 Lo 5547 36C4 D12 11 8PP6 0121 8 lo LB10 11 32U4 8884 COO4 2518 774P 6598 et 4 2542162 7458 51C4 74S08 32U4 ee Te 2518 OF 96 5 A76P Appendix cnt d Schematic SHT5 SHT6 ee IC SIGNATURE SIGNATURE 8 74 502 C530 9 OUHA 5547 10 AA31 4 403F 18 403F 1C12 2 2518 6598 12 12 __________239 C12 3 258 Fs 9 1C12 4 7 LC12 5 96UA 1 1 LC12 6 F8 15 F9U6 542101221 Le 4 zarsoz C12 8 1798 C32P 12 294 FPO5 13 U97A 1798 8 ____ 5547 _ POH Hae 9 650 802H Uas Oe Tle 1798 58 5 sF 1846
16. CINEMATRONICS INC C P U EXORCISOR PRELIMINARY USER MANUAL David Fish October 14 1997 Version 1 0 Table of Contents Overview Cinematronics Exorcisor Description Signature Analysis Equipment Necessary Setting up the Equipment HP5004A Self test Connecting the HP5004A Signature Analyzer to the Exorcisor Verifying the Exorcisor output signatures Preliminary CPU Operational Testing Connecting the Exorcisor to the CPU under test Reading Signatures and Verification Detecting faulty devices Testing the board for non JMI mode Testing the board s RAM addressing signatures Tips amp Techniques Appendix A Listing of Signatures for IC pins B Board Layout with marked connection locations Reference 23 24 OVERVIEW The Cinematronics C P U Exorcisor The Cinematronics Exorcisor was designed to help Test Technicians diagnose circuit faults in the main logic board a k a CPU used in all the early Cinematronics Vector based arcade games The Exorcisor connects to the board under test and injects digital signals into a number of circuit nodes forcing the board to operate in a stable and repeatable manner With the board in this state the technician can diagnose many component failures by simply reading the digital signatures present on the board and comparing them to the correct signatures which are shown on the schematics Debugging becomes a simple matter of finding the device which is causing the incorrect s
17. a __ 10 500 11 13 _ 15 603 17 6 2 et U2 9 754 9A6A 9A6A 41UC K2 5 9A6A 6 60P1 9 9A6A 10 41UC 41UC 9A6A 41UC J8 2 9A6A Eo ete 4 amp 13 4813 1 E Appendix cnt d SIGNATURE SIGNATURE 41515 90AP 745288 503 7 7 2 15 7 7 2 41515 90AP 90AP _ C32P P503 802H 7 SHT4 74 3 H666 maj 6 f FU3U 5 74 FUU 7810 891F 60695 12 8 9 8 9 74504 891F 2185 HI 72 66 56909 Hia 12 609 LH14 73 ae 9 H33C pHi4 8 891F Haj 10 1 0 2 Hi4 5 __ 14 4 00007H33C ig 3 74 504 2518 2518 il J4 2 578F 1J10 1 4 1J10 12 FFC9 1F1A 4C4H 4819 5547 1106 8884 C004 415377 6PF3 7 N 0 0 rd E ____ Ce 6H37
18. gs START IN negative edge STOP OUT positive edge CLOCK OUT positive edge NOTE Some circuit nodes have two signatures shown the upper first value is read when the CLOCK is positive edge triggered and the lower second value when the CLOCK is negative edge triggered Detecting faulty devices In most cases detecting a defective device is as simple as finding a bad signature and finding the IC which is driving the node Once you find a bad signature follow the signal up stream to the first IC at which a bad signature shows up at If all the input signatures to this IC are correct and the output is not there a good chance you ve found a bad device This reasoning may not lead to a correct determination if for instance there is a short affecting the bad node or if an IC connected to the node has a shorted input It s always good idea to check the node in question with a meter and oscilloscope to help further diagnose a problem Testing the board for Non JMI mode Some of the signatures listed in Appendix A are shown within two forward slashes nnnn These are signatures read when the board has been put in the non JMI mode The JMI jumper must be removed if present to obtain these signatures Be sure to replace this jumper when testing has been completed Testing the board s RAM Addressing Signatures There are eight unique signatures in Appendix A shown with an asterisk prefix These are the signat
19. ignature and replacing it Signature Analysis From the HP Test amp Measurement catalog here s a description of Signature Analysis Signature analysis is a fast and accurate method of troubleshooting digital circuits Finding faults is reduced to tracing signal flow and comparing measured signatures to printouts or computer stored signatures A signature is a 16 bit cyclic redundancy code CRC generated for blocks of data Instead of entire bit streams only signatures are compared to detect errors HP s patented signature analysis technique enables the 5005 or 5006 to generate a compressed four digit fingerprint or signature of a digital data stream at a logic node Any fault associated with a device connected to the node will force a change in the data stream and produce an erroneous signature In other words a signature is a four digit Hexadecimal representation a binary pattern measured within a window defined by a START and a STOP signal The signatures that are used as a reference were measured on a known good PC board similar to the board under test DUT The reference board and the DUT must be driven by identical signal patterns or exercised to obtain the proper results This is just what the Exorcisor does Equipment Necessary Signature Analyzer 5004 HP5006A Atari Cat Box etc 5 Volt DC 5A Power Supply or Cinematronics Power Supply 100 MHz or higher Oscilloscope w probes
20. l not operate These circuits must be repaired before the Exorcisor can be used Connecting the Exorcisor to the Board Under Test IMPORTANT Before you connect the Exorcisor verify that the 5 volt power supply is turned OFF Connecting the Exorcisor to the CPU is a simple task First disconnect the ribbon cable which connects to the display Then remove the two 16 pin DIP shunts located at D8 and U14 Connect the DIP plug at the end of the cable which plugs into J3 of the Exorcisor into the IC socket at D8 Connect the other DIP plug at the end of the cable which plugs into J1 into the socket at 014 Attach the DIP clip designated N2 to the IC N2 741 5257 paying close attention to the location of pin 1 Attach the R2 DIP clip to IC R2 and the 2 DIP clip to IC T2 There is a flying ball clip connected to the cable from J1 this clip is attached to the test point TP8 No IC s need to be removed from the board in order to use the Exorcisor READING SIGNATURES AND VERIFICATION With the equipment hooked up as described in the previous sections turn on the power to the analyzer and the DC power supply Set the Signature Analyzer to the configuration shown below Debugging is now a simple matter of touching the probe tip to a specific IC pin and comparing it s signature to that shown on the schematic The expected signatures are listed in Appendix A for reference The key below defines the terms used in the tables HP5004A Switch Settin
21. ures for the eight RAM address lines AO thru A7 To obtain these signatures pin 10 of IC 112 and pin 10 of IC J12 must be tied to ground These pins are connected together by a trace so it s only necessary to ground one This can be done simply by using a 16 pin DIP clip with pins 10 and 8 tied together and placing the clip on either IC 12 J12 Tips amp Techniques The IC s on the Cinematronics CPU board have reference designations that correspond to their X and Y position on the board The grid lines are designated U thru A across the wide dimension horizontal if the board is positioned with the connectors along the top and 2 thru 14 across the shorter vertical width Unfortunately there are no reference designations shown on the board for each IC To speed up the debug process I highly recommend placing a small label on various IC s and marking them with it s reference designation and the number of pins the IC has The small 5 8 x 3 16 IC labels that available in 8 gt X 11 sheets with 480 labels each are ideal Always check the test point marked C3 2P first This is the RESET node and it s signature should be 2 If the signature is incorrect repair the reset circuit before continuing Always trace bad signatures in the opposite direction of the signal flow A good starting point is at the X and Y data output latches and the line intensity control circuit bad signature at an input of
22. y for about 1 second tests all segments and then have one of the signature sets listed above for about 1 second If the probe RESET switch is pressed during the SELF TEST mode the four 7 segment digit displays will show all zeros except when all segments are dimly lit Connecting the HP5004A Signature Analyzer to Exorcisor 1 Connect the 5004A s grabber connectors as follows CLK yellow clip to Exorcisor CLK terminal START green clip to Exorcisor START STOP terminal STOP red clip to Exorcisor START STOP terminal GND black clip to Exorcisor GND terminal 2 Connect The Exorcisor s 5V banana jack to the 5 volt source either from the Cinematronics power supply or a lab supply In the same manner connect the GND banana jack to the supply s GROUND connection Verify that the board under test is connected to the 5 volt supply also 3 Using a short jumper lead connect the Exorcisor s CLK terminal to the CLK test point on the logic board This point is located between IC s Jx and Kx and is marked CLK on the component side of the board At this point the Exorcisor has all the necessary inputs connected to perform an operational verification test If this test is not necessary skip the next section Verifying the Exorcisor output signatures With the equipment connected as described in the previous section apply power to the 5V power supply Verify that the supply is still putting out 5 0 volts DC 0 25VDC Set
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