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.

Table 3-3. Troubleshooting Suggestions

 

Call Center:

Repair Center:

Repair Center:

Symptom

Suggestions

Likely Causes

Comments

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 1-27and the table on page 1-28.

Startup

Does not boot on

Check power source.

AC adapter.

Check AC adapter. Remove

AC or battery.

Press and hold power button

SDRAM module.

all but one SDRAM module

 

to turn notebook off, then

CPU module.

and try again.

 

press power button to turn

Switchboard PCA.

If power status light does not

 

notebook on.

turn on, reprogram BIOS,

 

Motherboard.

 

Unplug AC adapter, remove

replace top case, replace

 

Display assembly.

 

the battery and any PC cards,

motherboard.

 

press reset button to turn

Hard drive.

If power status light turns on

 

notebook off, then reconnect

 

but display remains off, try

 

power and try again.

 

external monitor. If monitor

 

Do not use touch pad while

 

shows successful boot,

 

booting or resuming.

 

replace display assembly. If

 

Remove all but one SDRAM

 

monitor shows activity but

 

 

BIOS does not complete,

 

module and try again.

 

 

 

replace display assembly. If

 

Reinsert any other SDRAM

 

 

 

monitor is blank, replace

 

module and try again.

 

 

 

switchboard PCA, 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.

Beeps once, spins

Make sure at least one

SDRAM module.

 

hard disk, repeats,

SDRAM module is installed.

 

 

but does not boot.

 

 

 

Does not boot on

Make sure battery is properly

Battery or contacts.

 

battery, but boots

installed and fully charged.

Motherboard.

 

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 disk or floppy

Make sure floppy drive is

floppy drive.

bootable.

drive.

installed and connected

 

Use BIOS Setup to check

Motherboard.

correctly.

 

default boot order.

 

 

Does not boot from

Make sure CD is bootable.

CD/DVD drive.

Make sure CD/DVD is

CD in CD/DVD

Use BIOS Setup to check

Motherboard.

installed and connected

drive.

default boot order.

 

correctly.

 

Restart notebook.

 

 

3-6

Troubleshooting and Diagnostics

Service Manual

Page 79
Image 79
HP 2132AC, 2175EA, 2164EA, 2163EA, 2160US, 2158EA, 2165EA, 2166EA, 2505AP, 2502AP, 2500AP manual Troubleshooting Suggestions, Startup

2550CA, 2542EA, 2562AP, 2555AP, 2136AD specifications

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