NEC POWERMATE PROFESSIONAL 9000 Service Manual page 214

Problem Symptom
CD-ROM System power not on.
Malfunction
Disc tray does not open.
Cannot access CD-ROM
reader.
No sound from CDs.
Table 4-2 Problems and Solutions
Maintenance and Troubleshooting
Solution
1. Turn system power on.
1. System power not on. Turn system
power on.
2. System power failed. Insert the tip of
a straightened paper clip into the
emergency eject hole, then gently press
inward until the tray opens.
1. Check that the CD-ROM driver
software is loaded and not corrupted.
2. Check signal and power connections
between the reader, system board, and
power supply.
3. Check the master/slave jumper
settings (see Appendix B).
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 system or sound board.
Replace as necessary
1. Check that speaker power is on and
volume is adjusted.
2. Check audio software settings.
3. Check the CD disc.
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 reader.
7. Replace the system or sound board.
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