HP OMNIBOOK 2100 Service Manual page 66

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Symptom
Call Center:
Suggestions
OmniBook 3000
has certain audio
functions that do
not work
Serial/Parallel
General problems
Check settings in BIOS
Setup.
Check settings in Control
Panel (and in Windows NT
Diagnostics).
Infrared
General problems
Infrared communication is
not supported in
Windows NT 4.0.
Infrared is disabled and no
drivers installed as shipped.
(Drivers are included.)
Check settings in BIOS
Setup.
Standard IrDA and fast-IrDA
are incompatible (they use
different drivers).
For fast-IrDA, check for DMA
conflict with ECP parallel
port.
USB
General problems
USB is not supported in
Windows NT 4.0.
HP OmniBook 2100/3000/3100
Repair Center:
Repair Center:
Likely Causes
Comments
Audio PCA (rev 1.0).
For an OmniBook 3000 with
serial number TW745... or
lower, replace the audio PCA
if it is marked rev 1.0 on the
corner of the PCA. Also, if
the smaller of the two
connectors on the
motherboard for mounting
the audio PCA is tilted
slightly, replace the
motherboard. (Service note
3000-10.)
Motherboard.
IR PCA.
Motherboard.
Icon PCA.
USB PCA.
Check for bent pins and
misaligned connectors for the
Motherboard.
USB PCA.
If USB works on a docking
product, replace the USB
PCA.
Troubleshooting and Diagnostics
3-9

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