Lenovo Netvista A20i Hardware Maintenance Manual (HMM) for Aptiva and NetVista - Page 68

Error Symptoms, Action/FRU, Parallel, Joystick, Diagnostic Program

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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 "Monitor" on page 83. (including blank or illegible monitor). Loads 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. Printing failed. Make sure that the printer driver is properly installed. Refer to the service manual for the printer. Printer. Printer cable. System board. Printer problems. Refer to the service manual for the printer. Joystick Game port does not respond or Connect a joystick to the game port, and then execute "Interactive Test/Joystick test" in does not work. PC-Doctor diagnostics program. System board. Diagnostic Program Diagnostics programs cannot be Reboot the system from the diagnostics diskette. executed. Load default settings. Diagnostics diskette. Memory module. System board. Missing diagnostics files(s). Diagnostics diskette. 68

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68
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 83.
Loads 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.
Printing failed.
Make sure that the printer driver is properly installed.
Refer to the service manual for the printer.
Printer.
Printer cable.
System board.
Printer problems.
Refer to the service manual for the printer.
Joystick
Game port does not respond or
does not work.
Connect a joystick to the game port, and then execute “Interactive Test/Joystick test” in
PC-Doctor diagnostics program.
System board.
Diagnostic Program
Diagnostics programs cannot be
executed.
Reboot the system from the diagnostics diskette.
Load default settings.
Diagnostics diskette.
Memory module.
System board.
Missing diagnostics files(s).
Diagnostics diskette.