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Symptom
Startup (con't)
Control Panel is lit but
discolored.
Control Panel is lit but no
text appears.
System hangs at screen
(the version string at the
base of the screen is not
displayed).
System hangs at screen,
and/or the system beeps
multiple times (more than
two short beeps).
T05-104-02 iR-M2 error messages and conditions (Continued)
COPYRIGHT © 2002 CANON INC.
Possible cause
Possibly one of the follow-
ing:
• User interface board cable
or connections are faulty
• User interface board is
faulty
• CPU connection is loose
• CPU is faulty
• Motherboard is faulty
User interface board is faulty.
If the system hangs with the
version string not displayed,
the code resident on the user
interface board has most
likely been corrupted.
Possibly one of the follow-
ing:
• Missing or faulty DIMM
• Faulty BIOS
2000 2000 2000 2000
NM-PDL REV.0 JULY 2002
CHAPTER 5 TROUBLESHOOTING
Suggested action
1. Check again the user interface board
cable and connections. If the cable
and connections are good and the
problem persists, replace the front
panel assembly containing the user
interface board (see page 4-7).
2. If the problem persists, verify CPU
and CPU fan connection. If the prob-
lem persists, you may need to replace
the CPU (see page 4-32).
3. If the problem persists, you may need
to replace the motherboard (see page
4-26).
Replace the front panel assembly con-
taining the user interface board (see page
4-7).
Replace the front panel assembly con-
taining the user interface board (see page
4-7).
1.Check again all cables and connec-
tions.
2.If the problem persists, check for miss-
ing or faulty DIMM and reseat the
DIMM to remove any oxidation on the
connector (see page 4-28).
3.If the problem persists, you may need
to replace the BIOS chip on the
motherboard (see page 4-35).
5-13
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