NEC POWERMATE PRO2180 - SERVICE MANUAL 1996 Service Manual page 137

Table Section 4-6 Problems and Solutions
Problem Symptom
CD-ROM Disc tray does not open.
Malfunction
Cannot access CD-ROM
reader.
No sound from CDs.
Communication No or bad data when
Error communicating.
Maintenance and Troubleshooting
Solution
1. Check that the system power is on.
2. System power failed. Insert a jewelers
screwdriver into the emergency eject hole
and turn counterclockwise to open the
tray, clockwise to close the tray.
1. Check signal/power connections
between reader, PCB, power supply.
2. Check master/slave settings.
3. Check power supply.
4. Check IDE cable. Replace as
necessary.
5. Replace system board.
1. Check that speaker power is on and
volume is adjusted.
2. Check audio software settings.
3. Check CD audio cable. Replace as
necessary.
4. .Replace CD-ROM reader.
5. Replace system board.
1. Check cable connections between
system board and device.
2. Check that the interface port is
selected.
3. Test or replace the device and
interface cable (see the device
documentation for troubleshooting).
4. Replace system board.
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