IBM Aptiva 2174 Hardware Maintenance Service page 78

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
Display changing colors.
Display problem not listed
above (including blank or
illegible monitor).
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.
Printing failed.
Printer problems.
46
(Continued)
Monitor signal connection/cable
Monitor
System board
"Monitor" on page 64.
Load default settings (if screen is readable).
System board
Parallel/Serial Ports
Make sure that the LPT# or COM# you test is the
same as is set in BIOS Setup.
Loop-back.
System board.
Ensure that the printer driver is properly installed.
Refer to the service manual for the printer.
Printer.
Printer cable.
System board.
Refer to the service manual for the printer.
Action/FRU