NEC POWERMATE 2000 Service And Reference Manual page 129

Problem Symptom
Keyboard or mouse LCD panel display has prompt,
malfunction but cannot input data using
keyboard or mouse.
LCD panel Blank display.
malfunction
PC card does not No output.
work
CD-ROM drive System power not on.
malfunction
Disc tray does not open.
Problems and Solutions
Solution
1. Ensure that system is not in power saving
sleep mode. Press (for no more than three
seconds) and immediately release the
power/sleep button to wake up system.
2. Check keyboard/mouse plugged in.
3. Check password (see Section 2).
4. Disable password (see Section 2).
5. Replace keyboard (or mouse).
6. Replace system board.
1. Check that system unit power is on.
2. Ensure that system is not in power saving
sleep mode. Press (for no more than three
seconds) and immediately release the
power/sleep button to ensure power saving
has not blanked the display.
3. Adjust brightness controls on LCD panel.
4. Check that LCD panel interface cable and
switch cable are connected to system board
(see Section 3).
5. Replace LCD panel.
1. Check PC card for correct insertion in slot
(label side up).
2. Remove PC card and insert in other slot.
3. Check PC card driver installation for IRQ
or I/O conflict.
4. Replace PC card.
5. Replace PC card bay (see Section 3).
1. Turn system unit power on.
1. System unit power not on. Turn system
power on.
2. System power failed. Insert the end of a
straightened paper clip into emergency eject
hole, then gently press inward until tray
opens.
Troubleshooting 7-9