HP Omnibook Xt6050 Service Manual

HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-15
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 BIOS
Setup.
Check settings in Control
Panel.
Make...

3-16 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200
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: click
wireless link icon in taskbar
and select Advanced
Configuration.Mini-PCI card #1.
Rear antenna PCA.
Front antenna PCA.
Motherboard.Make sure all cables are
properly connected to mini-
PCI card #1 and
motherboard. Check for
damaged coaxial...

HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-17
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Miscellaneous
Clock loses time. Plug in AC adapter for 24
hours to charge CMOS
battery.CMOS battery.
Motherboard.Charge CMOS battery.
Notebook gets
abnormally hot.Always set notebook on a flat
surface, so air can flow freely
around and underneath it
Make sure air vents are not
blocked.
Games and other programs
that drive CPU usage toward
100% can...

3-18 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200
SymptomCall Center:
Suggestions
Repair Center:
Likely Causes
Repair Center:
Comments
Accessories
Docking product I/O
problems.Make sure AC power is
connected to dock, and
notebook is fully inserted in
dock.
Check notebook’s power
supply.
Check settings in BIOS
Setup.
Try using corresponding port
on notebooks while
undocked.Docking product.
Motherboard.Test corresponding notebook
ports while undocked.
Port replicator and mini dock
are not...

HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-19
Diagnostic Tools
This section describes the following diagnostic tools you can use for troubleshooting and repairing the
Omnibook:
 
• Omnibook e-Diagtools diagnostic program (below).
 
• Power-on self-test (page 3-22).
 
• Sycard PCCtest 450 PC card (page 3-27).
 
• Windows/Desktop Management Interface (page 3-28).
 
• BIOS Setup utility (page 3-29).
e-Diagtools Diagnostic Program
The hardware diagnostic programs provide two levels of...

3-20 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200
Running e-Diagtools
The following steps describe how to run e-Diagtools. The procedure may differ slightly for different
versions of e-Diagtools.
 1.
 Restart the computer.
 2.
 When the HP logo appears, press F10 to start the diagnostic test.
 3.
 When the menu appears, press Enter to run e-Diagtools.
 4.
 The first time you run the program, you are prompted to select the language for the program.
 5.
 Press F2 to proceed with the basic...

HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-21
 To save or print the Support Ticket, click Save As or Print.
Note that the serial and parallel port tests are more thorough if you connect a loop-back connector to
the port and enable the external loopback option before running the test for that port. See the wiring
diagrams below.
141
25 13
6
19 5
Figure 3-3. Serial and Parallel Loopback Connectors
These connections
are not used.
Diodes are 1N4004
or equivalent
(I
F=1A, VF=1V@1A,
V...

3-22 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200
Interpreting the Results
The e-Diagtools diagnostic program returns test groups, error codes, and suggestions for repair and/or
follow-up actions. The basic hardware test will show a recommended replacement part, while the
advanced tests also provide more detailed error descriptions.
To help interpret the results of the e-Diagtools tests, refer to the following:
 
• e-Diagtools online help
 
• Replaceable Module Diagram on page 1-14
 
•...

HP Omnibook XT6050, XT/VT6200 Troubleshooting and Diagnostics 3-23
Power-On Self-Test
  Note
 
If Quiet Boot is enabled in BIOS Setup (the default setting), press Esc during boot to see POST
messages.
When the notebook boots, its system BIOS runs a series of initialization routines and diagnostic tests
called POST (Power-On Self-Test). The BIOS will not boot the notebook’s operating system if certain
components fail the POST diagnostic tests. POST indicates progress by a sequence of codes; if an
error...

3-24 Troubleshooting and Diagnostics HP Omnibook XT6050, XT/VT6200
BeepCodes*ErrorCodePOST Description
2-1-3-1 48h Check video configuration against CMOS.2-1-3-2 49h Initialize PCI bus and devices.2-1-3-3 4Ah Initialize all video adapters in system.2-1-3-4 4Bh QuietBoot start (optional).2-1-4-1 4Ch Shadow video BIOS ROM.2-1-4-3 4Eh Display BIOS copyright notice.2-1-4-4 4Fh Initialize MultiBoot.2-2-1-1 50h Display CPU type and speed.2-2-1-2 51h Initialize EISA board.2-2-1-3 52h Test keyboard.2-2-2-1 54h...