D163 48 SM
3. TROUBLESHOOTING
3.1 ERROR CODES
If an error code occurs, retry the communication. If the same problem occurs, try to fix the
problem as suggested below. Note that some error codes appear only in the error code display
and on the service report.
Code Meaning Suggested Cause/Action
0-00 DIS/NSF not detected within
40 s of Start being pressed
 Check the line connection.
 The machine at the other end may be
incompatible.
 Replace the FCU.
 Check for DIS/NSF with an oscilloscope.
 If the rx signal is weak, there may be a bad
line.
0-01 DCN received unexpectedly  The other party is out of paper or has a
jammed printer.
 The other party pressed Stop during
communication.
0-03 Incompatible modem at the
other end
The other terminal is incompatible.
0-04 CFR or FTT not received after
modem training
 Check the line connection.
 Try changing the tx level and/or cable
equalizer settings.
 Replace the FCU.
 The other terminal may be faulty; try
sending to another machine.
 If the rx signal is weak or defective, there
may be a bad line.
Cross reference
Tx level - NCU Parameter 01 (PSTN)
Cable equalizer - G3 Switch 07 (PSTN)
Dedicated Tx parameters in Service Program
Mode
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