Lenovo PC 300 IBM PC300 (Type 2169) - Hardware Maintenance Manual (September 2 - Page 86

Execute Load BIOS Default Settings in BIOS Setup, Error Symptoms, Action/FRU, Parallel

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Table 2-3 Error Symptoms List Error Symptoms Action/FRU NOTE: To diagnose a problem, first find the error symptom in the left column. If directed to a check procedure, replace the FRU indicated in the check procedure. If no check procedure is indicated, the first Action/FRU listed in right column is the most likely cause. Display problem: - Incorrect colors - No high intensity - Missing, broken, or incorrect characters - Blank monitor(dark) - Blank monitor(bright) - Distorted image - Unreadable monitor - Other monitor problems Monitor signal connection/cable. Monitor System board Display changing colors. Monitor signal connection/cable Monitor System board Display problem not listed above (including blank or illegible monitor). "Monitor" on page 102. Load default settings (if screen is readable). System board Parallel NOTE: Execute "Load BIOS Default Settings" in BIOS Setup to confirm ports' presence before diagnosing any parallel/serial ports problems. Serial or parallel port Make sure that the LPT# or COM# you loop-back test test is the same as is set in BIOS failed. Setup. Loop-back. System board. 84

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84
Table 2-3 Error Symptoms List
Error Symptoms
Action/FRU
NOTE:
To diagnose a problem, first find the error symptom
in the left column. If directed to a check procedure, replace the
FRU indicated in the check procedure.
If no check procedure
is indicated, the first Action/FRU listed in right column is the
most likely cause.
Display problem:
- Incorrect colors
- No high intensity
- Missing, broken,
or
incorrect
characters
- Blank
monitor(dark)
- Blank
monitor(bright)
- Distorted image
- Unreadable
monitor
- Other monitor
problems
Monitor signal connection/cable.
Monitor
System board
Display changing
colors.
Monitor signal connection/cable
Monitor
System board
Display problem not
listed above
(including blank or
illegible monitor).
"Monitor" on page 102.
Load default settings (if screen is
readable).
System board
Parallel
NOTE:
Execute “Load BIOS Default Settings” in BIOS Setup
to confirm ports’ presence before diagnosing any parallel/serial
ports problems.
Serial or parallel port
loop-back test
failed.
Make sure that the LPT# or COM# you
test is the same as is set in BIOS
Setup.
Loop-back.
System board.