OKIDATA DOC-IT3000, Service Manual

Page: 324 / 428

Page: 219
Service Guide DOC-IT3000/4000
Chapter 4 Failure & Repair Analysis
RAP#21 - No Operation Panel Functions
START.
No operator panel display.
Turn the Doc-It system Off.
Disconnect the main control board from the engine control board.
Wait approximately 20-30 seconds.
Reconnect the main control board to the engine control board.
Has the problem been resolved?
YES End of procedure.
NO Check that the engine control board is not being shorted.
Verify that a spacer is placed between the soldered side of the engine control board and the metal
base frame. Insert a spacer if one is needed.
Check that there is no foreign particles inside the case that would cause the operation panel to short
out. Remove all foreign particles.
Has the problem been resolved?
YES End of procedure.
NO Replace the operation panel board.
Has the problem been resolved?
YES End of procedure.
NO The items listed below could be defective. 1. Main control board
2. Engine control board Has the problem been resolved? YES End of procedure.
NO Contact Technical Support.
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)