Table 3-2. Troubleshooting Suggestions - HP 6000 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, check to see what 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 the power source.
AC or battery.
Press the system-off switch
to reset the computer. Press
the blue sleep button to turn
the computer on.
Unplug the AC adapter and
remove all batteries, then
reconnect power.
Remove all but one SDRAM
modules and try again.
Reinsert any other SDRAM
modules and try again.
Beeps once, spins
hard disk, repeats,
but does not boot.
Does not boot on Check battery level on
battery, but boots battery LEDs.
on ac.
Check battery contacts. If
available, try another battery.
Does not boot from Make sure the floppy disk is
floppy drive. bootable.
Make sure the floppy drive is
installed or connected
correctly.
Use BIOS Setup to check the
boot order and to make sure
that 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.
Power supply PCA.
Display interface
PCA.
Motherboard.
Display assembly.
Hard drive.
SDRAM module.
Battery or contacts.
Motherboard.
Floppy drive or
contacts.
Floppy cable.
Motherboard.
Repair Center:
Comments
Check AC adapter. Remove
any SDRAM modules and
retry.
If power status light does not
turn on, reprogram BIOS,
replace power supply PCA,
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 interface,
replace motherboard.
If power status light and
display turn on, BIOS
completes, but OS does not
start from hard disk or from
floppy drive, replace CPU
module, then motherboard. If
OS starts from floppy drive,
reload hard drive, replace
hard drive.
Make sure at least one
SDRAM module is installed.
HP Omnibook 6000/6100