Rap 05: Data Transmission Problem - OKIDATA OF1000 Service Manual

RAP 05: Data Transmission Problem

NOTE
This RAP determines the cause of a problem which occurs after the Okifax 1000 connects with a
remote station.
Before troubleshooting any communication problems, run Self-Diagnosis, then verify that the
firmware is the most current version (in accordance with the Technical Service Bulletins - TSBs).
If the firmware is not the most current version - replace it before proceeding!
START
Printout the Activity Report
Look for common failure items. For instance, is one particular country, area code or phone
number always causing the problem?
If possible, substitute the "defective" Okifax 1000 with a known good facsimile unit. If the trouble
persists, there may be a problem with the line or at the receiving end.
Check the Okifax 1000 User Functions, Dialing Parameters and Technical Functions.
Perform the High-Speed Modem Transmit Test
to RAP 12 .
Data communication problems could have many different causes. It would be almost impossible to
design a RAP to cover all possible situations. Therefore, once you have performed the above
listed steps, replace the following assembles in the order listed:
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)
(1) MCNT-150 board.
(2) NCU-U board.
(3) LINE-JU board.
Service Guide OF1000
Chapter 4 Failure & Repair Analysis
(Refer to Section 4.6 ). If this test fails, Refer
Page: 136