Compaq hp pavilion ze4100 notebook pc User Manual

3-10 Troubleshooting and Diagnostics Service Manual
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Local area of dark
or light discoloration
visible when display
is on.Caused by excessive
pressure applied to
area on screen.Declared to be caused by
customer abuse.
External display
does not work.Check connections.
Press Fn+F5 several times.
Try display on another
computer.External display.
Motherboard.
Hard disk
Hard disk never
spins.Check power source.
Remove and...

Service Manual Troubleshooting and Diagnostics 3-11
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
CD/DVD drive
Particular CD or
DVD not playing
properly.Check disk for proper
insertion, dirt, or damage.
Clean with soft cloth or
replace as needed.
If CD was created on CD-RW
drive, try using HP certified
media. Read and write
quality can vary for other
media.
Cannot read any
CD or DVD.Restart notebook.
Make sure CD/DVD drive is
installed properly.CD/DVD drive.
DVD...

3-12 Troubleshooting and Diagnostics Service Manual
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Embedded numeric
keypad does not
work.Press Fn+F8 to activate
numeric keypad, and Lock
key to turn on number lock.
Avoid touching touch pad
while booting or resuming.Keyboard.
Motherboard.
PS/2 keyboard and
mouse with Y-
adapter do not
work.Check devices separately. Y-adapter.
PS/2 device.
Motherboard.
Touch pad
General problems. Reset notebook (see page 1-
9).
Check...

Service Manual Troubleshooting and Diagnostics 3-13
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
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
W indows Help.
Check settings in Control
Panel.
Check port settings in Device...

3-14 Troubleshooting and Diagnostics Service Manual
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
LAN/network
General problems. Check cables and
connections.
Try connecting notebook to
another network station (if
applicable). If green light next
to LAN port does not light,
LAN cable may not be
connected to network or
network may be down.
Use networking
troubleshooter in W indows
Help.
Check settings in Control
Panel.
Make sure LAN cable is
Category 3, 4, or 5 for...

Service Manual Troubleshooting and Diagnostics 3-15
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Wireless
General problems. Check TCP/IP setup in
Control Panel.
Check SSID, channel, and
encryption settings.Mini-PCI card.
Antenna PCAs.
Motherboard.Make sure all cables are
properly connected to mini-
PCI card and motherboard.
Check for damaged coaxial
cables or connectors.
One-Touch button
problems
Buttons not working
properly.Make sure correct
applications are...

3-16 Troubleshooting and Diagnostics Service Manual
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Notebook pauses
or runs sluggishly.May be normal W indows
behavior (background
processing can affect
response time).
Certain operations (such as
virus scanning or file
browsers) can affect
performance.
Press Ctrl+Alt+Del to see if
an application is not
responding.
Restart notebook.
If hard disk has spun down to
conserve power, it can take
several seconds to spin up
(you...

Service Manual Troubleshooting and Diagnostics 3-17
Diagnostic Tools
This section describes the following diagnostic tools you can use for troubleshooting and repairing the
notebook:
 • 
Notebook e-Diagtools diagnostic program (below).
 • 
Power-on self-test (page 3-18).
 • 
Sycard PCCtest 450 PC card (page 3-24).
 • 
Windows Management Instrumentation (page 3-25).
 • 
BIOS Setup utility (page 3-25).
e-Diagtools Diagnostic Program
The hardware diagnostic programs provide two levels of testing:
 •...

3-18 Troubleshooting and Diagnostics Service Manual
 
10. 
After each run, press F2 to return to the advanced test screen, or press F4 to view the Support
Ticket.
 
11. Exit.
 Press F3 and then any key to exit and reboot.
 
12. Optional: open the Support Ticket.
 In Windows, click Start > All Programs (or Programs) >
Hewlett-Packard > Notebook > HP e-Diagtools > e-Diagtools for Windows.
 
13. 
Click View to display the Support Ticket.
 
14. 
To add information about your problem, click Comments, type the...

Service Manual Troubleshooting and Diagnostics 3-19
First, confirm the failure by performing a “clean” boot, as described below. Note that if the notebook
fails to restart with a clean boot, it requires repair.
 
1. 
Remove all accessories, including SDRAM modules, port replicator, PC cards, printer, external
monitor, pointing device, and keyboard.
 
2. 
Provide “clean” AC power—no auto adapter or unusual AC adapter configuration.
 
3. 
Press the reset button to return the notebook to a known state.
 
4....