HP PAVILION Pavilion ZE4300 Service Manual page 111

Symptom
Notebook does not boot
after adding SDRAM
Audio
No sound audible
Sound does not record
Serial/Parallel/USB
General problems
Modem
General problems
3-14 Troubleshooting and Diagnostics
Call Center: Suggestions
Use only DDR-266 SDRAM modules.
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.
Use an external microphone (internal
microphone normally not included).
Check software controls.
Test audio with e-Diagtools
diagnostics.
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.
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.
Repair Center:
Likely Causes
SDRAM module
Top case
Speaker assembly
Switchboard PCA
Motherboard
Switchboard PCA
Motherboard
Motherboard
Motherboard
Repair Center:
Comments
Check operation using
headphones or
external speakers
(switchboard PCA).
Make sure speaker
assembly cable is
connected.
Service Manual