IBM NetVista Hardware Maintenance Manual page 78

Error Symptoms
Display changing colors.
Display problem not listed
above (including blank or
illegible monitor).
NOTE: Execute "Load BIOS Default Settings" in
Configuration/Setup Utility to confirm ports' presence
before diagnosing any parallel/serial ports problems.
Serial or parallel port loop-
back test failed.
Printing failed.
Printer problems.
Game port does not
respond or does not work.
46 IBM Desktop System HMM
1. Monitor signal
2. Monitor
3. System board
1. "Monitor" on page 66.
2. Load default settings
3. System board
Parallel/Serial Ports
1. Make sure that the
2. Loop-back.
3. System board.
1. Ensure that the printer
2. Refer to the service
3. Printer.
4. Printer cable.
5. System board.
1. Refer to the service
Joystick
1. Connect a joystick to
2. System board.
Action/FRU
connection/cable
(if screen is readable).
LPT# or COM# you test
is the same as is set in
Configuration/Setup
Utility.
driver is properly
installed.
manual for the printer.
manual for the printer.
the game port, then
execute "Interactive
Test/Joystick" test in
PC-Doctor diagnostics
program.