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3-14 Troubleshooting and Diagnostics Service Manual
Symptom Call Center: Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Notebook does not boot
after adding SDRAM
Use only DDR-266 SDRAM modules. SDRAM module
Audio
No sound audible Increase sound volume.
Check whether sound is enabled
(mute button and software controls).
Check for sound resource conflicts in
Device Manager.
Test audio with e-Diagtools
diagnostics.
Top case
Speaker assembly
Switchboard PCA
Motherboard
Check operation using
headphones or
external speakers
(switchboard PCA).
Make sure speaker
assembly cable is
connected.
Sound does not record Use an external microphone (internal
microphone normally not included).
Check software controls.
Test audio with e-Diagtools
diagnostics.
Switchboard PCA
Motherboard
Serial/Parallel/USB
General problems Check connections.
Restart notebook.
Use troubleshooters in Windows
Help.
Check settings in Control Panel.
Check port settings in Device
Manager.
Test ports with e-Diagtools
diagnostics.
For USB: contact device vendor and
HP Notebook Web site (see page vii)
for latest USB drivers.
For USB: if the device is powered by
the USB port, try the other port.
Motherboard
Modem
General problems Check settings in Control Panel.
Open hardware Device Manager.
If modem is disabled, try to enable.
If modem has a conflict, try disabling
another device.
Use analog telephone line (2, 3, or
4 wires), not PBX or digital line. In a
hotel, ask for data line.
Try disabling error correction and
data compression.
Test modem with e-Diagtools
diagnostics.
Motherboard