IBM Aptiva 2174 Hardware Maintenance Service page 79

Table 2-3 Error Symptoms List
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.
Error Symptoms
Game port does not respond or
does not work.
Diagnostics programs cannot
be executed.
Missing diagnostics file(s).
Some or all keys on keyboard
do not work.
Pressing power switch does not
turn off system. (Only unplug
power cord from electrical
outlet can turn off system.)
Pressing power switch does not
turn on system.
Executing software shutdown
from Windows98 Start menu
does not turn off system. (Only
pressing power switch can turn
off the system).
No system power, or power
supply fan is not running.
Any other problems.
(Continued)
Joystick
Connect a joystick to the game port, then execute
"Interactive Test/Joystick" test in PC-Doctor
diagnostics program.
System board.
Diagnostic Program
Reboot the system from the diagnostics diskette.
Load default settings.
Diagnostics diskette.
Memory module.
System board.
Diagnostics diskette.
Keyboard
"Keyboard" on page 58.
Power Supply
"Startup Options" on page 18
Power switch cable assembly
"Power Supply" on page 61
Ensure the power override switch(situated at the
back of the machine, just above the connector for
the power cable) is not set to off.
Power switch cable assembly.
Load default settings.
Reload software from Recovery CD.
"Power Supply" on page 61
System board.
Other Problems
See "Undetermined Problems" on page 66
Action/FRU
Check Procedures 47