Dsp-Related Symptoms; Ess-Related Symptoms; Peripheral-Device-Related Symptoms - IBM ThinkPad 365C 2625 Maintenance Manual

DSP-Related Symptoms

Symptom / Error
In OS/2, DOS, or Windows
multimedia programs, no
sound comes from the
computer. (Only system
beeps are heard at
power-on.)
In OS/2, DOS, or Windows,
the modem does not work.

ESS-Related Symptoms

Symptom / Error
In OS/2, DOS, or Windows
multimedia programs, no
sound comes from the
computer. (Only system
beeps are heard at
power-on.)

Peripheral-Device-Related Symptoms

Symptom / Error
External display does not
work correctly.
Printer problems.
Serial or parallel port device
problems.
ThinkPad 760 (9546, 9547)
FRU / Action in Sequence
1. Reseat the DSP card.
2. Go to "DSP Card
Checkout" on
page 346 and check
the DSP card.
3. Check that the device
driver is installed
correctly.
1. Check that the DSP
Modem is active.
OS/2 and Windows:
Click the DSP Modem
icon in the ThinkPad
Feature program.
DOS:
Run the MWMODEM
ON command.
2. Reseat the DAA
module.
FRU / Action in Sequence
1. Reseat the audio
(ESS) card.
2. Go to "Audio (ESS)
Card Checkout" on
page 346 and check
the audio (ESS) card.
3. Check that the device
driver is installed
correctly.
FRU / Action in Sequence
1. See "External Display
Self-Test" in
"Common Devices
Checkout" section.
1. Run printer self-test.
2. Parallel port device
3. Cable
4. System board
1. Device
2. Device cable
3. System board
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