Electrohome G05 Guida alla Risoluzione dei Problemi Scaricare il pdf (Pagina 45)

Cinematronics Vector Monitor Repair Guide v.1.0

Page 45 of 53

Symptom: Player Control Button(s) Inoperative.

 Refer to player control schematic in APPENDIX.

 Verify with ohmmeter proper closure of player control leaf blade switches.

 Remove J3 connector. Measure +5 volts on D4 - 1, 2, 3, 4, 12, 13, 14, and 15. If missing,

replace D4. Replace pull up resistor pack D2.

 Measure +5 volts on C4 - 1, 2, 3, 4, 12, 13, 14, and 15. If missing, replace C4. Replace pull

up resistor pack C2.

 Coin up a game and, with J3 disconnected, ground aforementioned pins on C4 & D4. If

display responds, problem is in continuity from J3 to player control switches [i.e., in the

wiring harness].

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Electrohome G05 Guida alla Risoluzione dei Problemi Pagina 45