Rap 10: Led Test Failure - OKIDATA OF1000 Service Manual

RAP 10: LED Test Failure

START
Do one or more LEDs light?
YES Replace the OPE-150 board.
NO Is + 5 vdc present at CN1, pin 6 of the OPE-150 board?
YES Check the cable between CN1 of the OPE-150 and CN9 of the MCNT-150 for
NO Is + 5 vdc present at CN7, pin 8 of the MCNT-150 board?
YES Replace the OPE-150 board.
NO Replace the PWU-150 board.
Copyright 1997, Okidata, Division of OKI America, Inc. All rights reserved. See the OKIDATA Business
Partner Exchange (BPX) for any updates to this material. (http://bpx.okidata.com)
damage. Replace the cable if damaged.
Is the problem resolved?
YES End of procedure.
NO Replace the MCNT-150.
Service Guide OF1000
Chapter 4 Failure & Repair Analysis
Page: 141