Speaker Problems - NEC POWERMATE 8100 Series Service And Reference Manual

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The CD does not eject due to a power failure or software error.
Turn off the system and use the CD-ROM emergency eject feature. Insert
the pointed end of a paper clip into the eject hole. Press inward on the
clip to open the door.
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The CD-ROM drive plays music CDs but the sound is not heard.
However, .WAV and .MIDI sounds can be heard when played.
Check that the cable connecting from the rear of the CD-ROM drive to
the riser board CD audio connector is in place and secure.
Check the CD Audio volume setting.

Speaker Problems

Check the following problems to see the possible cause and solution.
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No sound from the speakers.
Check that the speaker power is on. Verify that all speaker cable
connections are correct and secure.
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Speaker volume is too low.
Adjust the volume control on the speaker. If the volume is still too low,
adjust the volume through the system software. See the Windows
Multimedia online help.
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Sound is only coming from one speaker.
Balance the speaker output by adjusting the balance in the sound
software. See the Windows Multimedia online help.
8-6 Troubleshooting