NEC PowerMate VT 300i Series Service And Reference Manual page 120

Problem Symptom
CD-ROM drive No sound from CDs.
malfunction (cont"d)
Cannot access CD-ROM drive.
Communication Bad data or no data when
error communicating.
7-10 Troubleshooting
Problems and Solutions
Solution
1. Check that speaker power is on and
volume is adjusted.
2. Check audio software settings.
3. Check the CD.
4. Check the CD-ROM drive audio cable
connections.
5. Check the CD-ROM drive audio cable.
Replace as necessary.
6. Replace the CD-ROM drive.
7. Replace the optional sound board.
8. Replace the system board.
1. Check that the CD-ROM driver software
is loaded and not corrupted.
2. Check signal and power connections
between the CD-ROM drive, system board,
and power supply.
3. Check the master/slave jumper settings
(see Section 2).
4. Check the IDE cable. Replace as
necessary.
5. Check the power supply. Replace as
necessary.
6. Check the system board. Replace as
necessary.
7. Check the sound board. Replace as
necessary
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 the system board.