Table 3-2. Troubleshooting Suggestions - HP Omnibook XT6050 Service Manual

If you cannot isolate the cause of a problem using the above diagnostic tools, use the suggestions in
the following table to help find the problem.
Symptom Call Center:
Suggestions
To help determine likely causes of a problem, determine which replaceable modules are involved in the system
function and what roles they play: see the figure on page 1-14 and the table on page 1-15.
Startup
Does not boot on Check power source.
AC or battery.
Press system-off switch to
reset notebook, then press
blue sleep button to turn
notebook on.
Unplug AC adapter, remove
all batteries and any PC
cards, press system-off
switch to reset notebook,
then reconnect power and try
again.
Do not use touch pad while
booting or resuming.
Remove all but one SDRAM
module and try again.
Reinsert any other SDRAM
module and try again.
Beeps once, spins Make sure at least one
hard disk, repeats, SDRAM module is installed.
but does not boot.
Does not boot on Make sure battery is properly
battery, but boots installed and fully charged.
on AC. Check battery level on
battery LEDs.
Check battery contacts. If
available, try another battery.
Does not boot from Make sure floppy disk is
floppy drive. bootable.
Make sure floppy drive is
installed or connected
correctly.
Use BIOS Setup to check
default boot order and make
sure floppy boot is enabled.
Try using alternate
connection (with or without
floppy cable).
3-6 Troubleshooting and Diagnostics

Table 3-2. Troubleshooting Suggestions

Repair Center:
Likely Causes
AC adapter.
SDRAM module.
CPU module.
Display interface
Motherboard.
Display assembly.
Hard drive.
SDRAM module.
Battery or contacts.
Motherboard.
Floppy drive or
Floppy cable.
Motherboard.
Repair Center:
Comments
Check AC adapter. Remove
all but one SDRAM module
and try again.
If power status light does not
turn on, reprogram BIOS,
PCA.
replace top case, replace
motherboard.
If power status light turns on
but display remains off, try
external monitor. If monitor
shows successful boot,
replace display assembly. If
monitor shows activity but
BIOS does not complete,
replace display assembly. If
monitor is blank, replace
display interface PCA,
replace display assembly,
replace motherboard.
If power status light and
display turn on, BIOS
completes, but OS does not
start from hard disk or floppy
drive, replace CPU module,
replace motherboard. If OS
starts from floppy drive,
reload hard drive, replace
hard drive.
contacts.
HP Omnibook XT6050, XT/VT6200