Index of SymptomtoFRU Error Message

LCD-Related Symptoms

Symptom/Error

Action in Sequence

LCD backlight doesn't work. LCD is too dark. LCD brightness cannot be adjusted.

LCD contrast cannot be adjusted.

Enter BIOS Utility to execute Load Setup Default

Settings, then reboot system.

Reconnect the LCD connectors.

Keyboard (if contrast and brightness function key do not work).

LCD inverter ID

LCD cable

LCD inverter

System board

Unreadable LCD screen Missing pels in characters Abnormal screen Wrong color displayed

Reconnect the LCD connector.

LCD inverter ID

LCD cable

LCD inverter

System board

LCD has extra horizontal or vertical lines displayed.

LCD inverter ID LCD inverter LCD cable LCD

System board

Indicator-Related Symptoms

Symptom/Error

Action in Sequence

Indicator incorrectly remains off or on, but system runs correctly.

Reconnect the inverter board Inverter board System 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. Battery pack Power adapter

Hard drive & battery connection board System board

The system doesn't power on.

Power source (battery pack and power adapter). See Power System Check. Battery pack Power adapter

Hard drive & battery connection board System board

The system doesn't power-off.

Power source (battery pack and power adapter). See Power System Check.

Hold and press the power switch for more than 4 seconds. System board

Symptom/Error

Action in Sequence

Battery can't be charged.

See Check the Battery Pack.

Battery pack System board

PCMCIA-Related Symptoms

Symptom/Error

Action in Sequence

System cannot detect the PC Card (PCMCIA).

PCMCIA slot assembly System board

PCMCIA slot pin is damaged.

PCMCIA slot assembly

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.

DIMM

System board

Speaker-Related Symptoms

Symptom/Error

Action in Sequence

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

Audio driver Speaker System board

Internal speakers make noise or emit no sound.

Speaker System board

Power Management-Related Symptoms

Symptom/Error

Action in Sequence

The system will not enter hibernation.

Keyboard (if control is from the keyboard) Hard disk drive System board

The system does not enter hibernation mode and four short beeps every minute.

Press Fn + F4 and see if the computer enters hibernation mode.

Touchpad

Keyboard

Hard disk connection board Hard disk drive System board

The system does not enter standby mode after closing the LCD.

LCD cover switch System board

The system does not resume from hibernation mode.

Hard disk connection board Hard disk drive System board

The system does not resume from standby mode after opening the LCD.

LCD cover switch System board

Battery fuel gauge in Windows does not go higher than 90%.

Remove battery pack and let it cool for two hours. Refresh battery (continue to use battery until power off, then charge battery). Battery pack System board

Symptom/Error

Action in Sequence

System hangs intermittently.

Reconnect hard disk/CD-ROM drives. Hard disk connection board System board

Peripheral-Related Symptoms

Symptom/Error

Action in Sequence

System configuration does not match the installed devices.

Enter BIOS Setup Utility to execute Load Default

Settings, then reboot system.

Reconnect hard disk/CD-ROM/diskette drives.

External display does not work correctly.

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

USB does not work correctly.

System board

Print problems

Ensure the Parallel Port in the "Onboard Devices

Configuration" of BIOS Setup Utility is set to Enabled.

Onboard Devices Configuration

Run printer self-test.

Printer driver

Printer cable

Printer

System Board

Serial or parallel port device problems.

Ensure the Serial Port in the Devices Configuration" of

BIOS Setup Utility is set to Enabled.

Device driver

Device cable

Device

System board

Keyboard/Touchpad-Related Symptoms

Symptom/Error

Action in Sequence

Keyboard (one or more keys) does not work.

Reconnect the keyboard cable.

Keyboard

System board

Touchpad does not work.

Reconnect touchpad cable. Touchpad board System board

Modem-Related Symptoms

Symptom/Error

Action in Sequence

Internal modem does not work correctly.

Modem phone port Modem combo board System board

NOTE: If you can not correct the problems according to the anterior tables, see Undetermined Problems.

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