NEC POWERMATE ES Series, Инструкция по обслуживанию и справочник

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Troubleshooting 7-5
!
The CD does not eject due to a power failure or software error.
Use the emergency eject feature to open the CD tray. Remove the system cover to access
the front of the CD-ROM drive (see Section 3, “Disassembly and Reassembly” for cover
removal procedures). Insert the end of a paper clip into the CD-ROM emergency eject hole
at the front of the CD-ROM drive. Press inward on the clip to open the CD tray.
!
The CD-ROM drive plays music CDs but the sound is not heard.
Check that the speaker power is on (see “Speaker Problems”).
Adjust the volume control on the speakers.
Check the volume control in the system tray along the taskbar.
Check that the cable connecting the CD-ROM drive to the system board CD audio
connector is in place and secure.
Speaker Problems
Check the following problems to see the possible cause and solution.
! No sound from the speakers.
Check that the speaker power is on. Verify that all speaker cable connections are correct and
secure.
Check that the power adapter is connected to the power source and the speaker.
If using a headphone, check that it is not plugged in. Plugging in the headphone turns off
the speaker set.
!
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.
! 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.