Index of SymptomtoFRU Error Message

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LCD-Related Symptoms

Symptom / Error

Action in Sequence

LCD backlight doesn't work

First, plug a monitor to CRT port. Next, enter BIOS utility to running

"Load Default Settings" then reboot the system.

Reconnect the LCD connectors.

Keyboard (if the brightness function key doesn't work).

LCD cable

LCD inverter

Main board

LCD is too dark

LCD brightness cannot be adjusted

Enter BIOS Utility to execute "Load Setup Default Settings", then reboot system.

Reconnect the LCD connectors.

Keyboard (if the brightness function key doesn't work).

LCD cable

LCD inverter

Main board

Unreadable LCD screen

Missing pels in characters

Abnormal screen

Wrong color displayed

LCD has extra horizontal or vertical lines displayed.

Reconnect the LCD cable

LCD cable

Main board

Indicator-Related Symptoms

Symptom / Error

Action in Sequence

Indicator incorrectly remains off or on, but system runs correctly

Main board

HDD/CD-ROM active indicators cannot work

HDD/CD-ROM drive Device driver Main board

Power-Related Symptoms

Symptom / Error

Action in Sequence

Power shuts down during operation

Power source (battery pack and power adapter). See "Power System Check" on page 57. Battery pack AC adapter

See if the thermal module is overheat (Heat sink or fan). Main board

The system cannot power-on.

Power source (battery pack and power adapter). See "Power

System Check" on page 57.

Battery pack

Power adapter

Main board

The system cannot power-off.

In Windows XP operating system, hold and press the power switch for more than 4 seconds. If the system can power off, then the main board is OK. Verify OS in the HDD. Main board

Power-Related Symptoms

Symptom / Error

Action in Sequence

Battery can't be charged or discharged

See "Check the Battery Pack" on page 58. Battery pack Main board

System hang during POST

ODD/HDD/FDD/RAM module Main board

PCMCIA-Related Symptoms

Symptom / Error

Action in Sequence

System cannot detect the PC Card (PCMCIA)

PCMCIA slot assembly Main board

PCMCIA slot pin is damaged.

PCMCIA slot assembly

PC Card cannot be inserted or ejected

Check if the PCMCIA slot is blocked Main board

Memory-Related Symptoms

Symptom / Error

Action in Sequence

Memory count (size) appears different from actual size.

Enter BIOS Setup Utility to execute "Load Default Settings" then reboot system.

RAM module

Main board

Check BIOS revision

System can power on, but you hear two long beeps: "B--, B--" and the LCD is blank.

Reinsert DIMM DIMM Main board

Speaker-Related Symptoms

Symptom / Error

Action in Sequence

In Windows, multimedia programs, no sound comes from the computer.

OS volume control Audio driver Speaker Main board

Internal speakers make noise or emit no sound.

Speaker Main board

Microphone cannot work

Audio driver

Volume control in Windows XP Main board

Power Management-Related Symptoms

Symptom / Error

Action in Sequence

The system will not enter hibernation mode

Power option in Windows XP Hard disk drive Main board

The system doesn't enter standby mode after closing the lid of the portable computer.

Driver of Power Option Properties Lid close switch in upper case Main board

Power Management-Related Symptoms

Symptom / Error

Action in Sequence

The system doesn't resume from hibernation/ standby mode.

Connect AC adapter then check if the system resumes from

Standby/Hibernation mode.

Check if the battery is low.

Hard disk drive

Main board

The system doesn't resume from standby mode after opening the lid of the portable computer.

LCD cover switch Main board

Battery fuel gauge in Windows doesn't go higher than 90%.

Refresh battery (continue use battery until power off, then charge battery).

Battery pack

Main board

System hangs intermittently.

Reconnect hard disk/CD-ROM drives. Main board

Peripheral-Related Symptoms

Symptom / Error

Action in Sequence

System configuration does not match the installed devices.

Enter BIOS Setup Utility to execute "Load Setup defaults", then reboot system.

Reconnect hard disk/CD-ROM drives/FDD or other peripherals. Main board

External display does not work correctly.

Press Fn+F5, LCD/CRT/Both display switching

Keyboard

Main board

USB does not work correctly

See "System Diagnostic Diskette" on page 40 Main board

Print problems.

Enter BIOS Setup Utility to execute "Load Default Settings" then reboot the system.

Run printer self-test.

Printer driver

Printer cable

Printer

Main board

Parallel port device problems

Enter BIOS Setup Utility to execute "Load Default Settings" then reboot the system.

Device driver

Device cable

Device

Main board

Keyboard/Touchpad-Related Symptoms

Symptom / Error

Action in Sequence

Keyboard (one or more keys) does not work.

Reconnect the keyboard cable.

Keyboard

Main board

Touchpad does not work.

Reconnect touchpad cable. Touchpad board Main board

Symptom / Error

Action in Sequence

Internal modem does not work correctly.

See "System Diagnostic Diskette" on page 40.

Phone cable

Driver

Reconnect the Internal modem cable to the main board tightly. Main board

Internal LAN does not work correctly

Lan cable Driver Main board

NOTE: If you cannot find a symptom or an error in this list and the problem remains, see "Undetermined Problems" on page 67.

NOTE: If you cannot find a symptom or an error in this list and the problem remains, see "Undetermined Problems" on page 67.

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