Rap 06: Auto Reception Problem - OKIDATA OF1000 Service Manual

RAP 06: Auto Reception Problem

START
Place the Okifax 1000 in the manual receive mode. Is manual reception working properly?
NO Replace the following assemblies in the order listed.
(1) NCU-U board.
(2) LINE-U board.
YES Place the Okifax 1000 in the auto-receive mode. Place a call to the Okifax 1000.
Is the ring signal detected at CN7 Pin 9 of the NCU-U board?
Refer to Section 1 for ring signal specifications.
YES Replace the MCNT-150 board.
NO Replace the NCU-U board.
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Is the problem resolved?
YES End of procedure.
NO Replace the LINE-JU board.
Service Guide OF1000
Chapter 4 Failure & Repair Analysis
Page: 137