OKIDATA Pacemark 3410, Service Manual

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Service Guide PM3410
Chapter 4 Failure & Repair Analysis
RAP 09: Data Receiving Failure
START.
Is the SELECT lamp flashing?
YES Set the menu to ignore DC3.
NO Is the ALARM lamp ON?
YES Go to RAP 10.
NO Is the SELECT lamp ON?
NO Set the printer ON LINE.
YES Is the interface cable connected correctly?
NO Correctly connect the cable.
YES Is cable CN101 on the interface connector board connected correctly?
NO Correctly connect the cable.
YES Is cable CN6 on the operator panel connected correctly?
NO Correctly connect the cable.
YES If parallel, go to Parallel If serial, go to Serial.
Parallel
Replace the Program ROMs on the main logic board. Is the problem resolved?
YES End of procedure.
NO Replace the main logic board.
Is the problem resolved?
YES End of procedure.
NO Replace the interface connector board.
Is the problem resolved?
YES End of procedure.
NO Replace the cable connected to CN6 on the main logic board.
Is the problem resolved?
YES End of procedure.
NO Contact Technical Support.
Serial
Correctly set the interface menu parameters.
Is the problem resolved?
YES End of procedure.
NO Are +/- 8 vdc present at the main logic board? Check + 8 vdc at Pin 6 of cable CN7. Check - 8 vdc at