IBM Aptiva 2156, Hardware Maintenance Service

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2-21
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.
Joystick
Game port does not respond
or does not work.
Connect a joystick to the game port, 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.
Keyboard
Some or all keys on keyboard
do not work.
“Keyboard“ on page 2-32.
Power Supply
Pressing power switch cannot
turn off system.. (Only
unplug power cord from
electrical outlet can turn off
system.)
See ”Power Button Override < 4 sec” on
page 1-17.
Power switch cable assembly
"Power Supply" on page 2-35.
System board
Pressing power switch cannot
turn on system..
Check the voltage selector on the power
supply if it is off.
Power switch cable assembly.