Technical data

Troubleshooting
4-28
Audio Troubleshooting (DIGITAL PC 5510 Only)
Problem Possible Cause Action
Audio does not work. Power to speakers not turned
on.
Check the batteries or AC adapter
connection to be sure speakers are
getting power. Make sure the power
switch on the master speaker is set to
ON.
Sound, MIDI, mixer drivers not
installed.
Check the error messages for the
necessary drivers. In Windows Control
Panel, select “System”, then “Device
Manager” and install the necessary
driver(s).
Address contention. Two or
more devices might be trying
to access the same address.
Check IRQ, I/O address, and DMA
settings in Windows 95, Windows NT
Workstation, or BIOS Setup. Change
settings as required.
Cables loose or not properly
connected.
Make sure speaker and microphone
plugs are in correct jacks. Reconnect
cables. Refer to the
System Reference
guide for jack locations.
Volume control in Windows 95
not adjusted correctly.
Check the volume settings using the
Control Panel, Multimedia. Make sure
the volume control is not set too low and
that the mute box is unchecked.
Onboard audio controller
disabled.
Run the BIOS Setup utility and set the
Integrated Audio to “Enabled.”
Bad audio chip or sound card. Replace the backplane or sound card.
Main logic board has failed. Replace the main logic board.
External speakers do not
work.
Speakers not connected or
improperly connected.
Properly connect the speakers. Refer to
the
System Reference
guide for more
information.
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