Rap 21D: Printer Alarm 3 - OKIDATA OF1000 Service Manual

RAP 21D: Printer Alarm 3

START
Is the fan operating?
YES Replace the PCNT-150 board.
NO Remove the rear cover. Are the fan blades obstructed?
YES Remove the obstruction.
NO Is the fan harness connected to CN11 of the PCNT-150 board?
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NO Connect the harness.
YES Replace the fan, then replace PCNT-150 board.
Service Guide OF1000
Chapter 4 Failure & Repair Analysis
Page: 156