Index of SymptomtoFRU Error Messages

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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 Defaults" on Exit screen, then reboot system. Reconnect the LCD connectors.

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

LCD cable

LCD inverter

Main board

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

Reconnect the LCD connector LCD cable LCD inverter LCD

Main board

LCD has extra horizontal or vertical lines displayed.

LCD inverter LCD cable LCD

Main 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 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" . Battery pack Power adapter

Hard drive & battery connection board Main 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 Main 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. Main board

Battery can't be charged

See "Check the Power Adapter". Battery pack 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

Memory-Related Symptoms

Symptom / Error

Action in Sequence

Memory count (size) appears different from actual size.

DIMM Main board

Speaker-Related Symptoms

Symptom / Error

Action in Sequence

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

See "Sound Check" on page 66 Audio driver Speaker Main board

Internal speakers make noise or emit no sound.

See "Sound Check" on page 66

Speaker

Main 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 Main board

The system doesn't 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 Main board

The system doesn't enter standby mode after closing the LCD

LCD cover switch Main board

The system doesn't resume from hibernation mode.

Hard disk connection board Hard disk drive Main board

The system doesn't resume from standby mode after opening the LCD.

LCD cover switch Main board

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

Remove battery pack and let it cool for 2 hours.

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

Battery pack

Main board

Power Management-Related Symptoms

Symptom / Error

Action in Sequence

System hangs intermittently.

Reconnect hard disk drives. Hard disk drive connector 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/diskette drives.

External display does not work correctly.

See if there is an error beep. If there is an erro beep, then change main board.

Power off. Then check if RAM CPU BIOS are well-connected.

Press Fn+F5 three times slowly LCD FPC LCD inverter LCD

USB does not work correctly

USB device cable is firmly connected into the USB ports. Test one USB port each time. USB socket is firmly secured to the main board. Main board

Print problems.

Ensure the "Parallel Port" in the "System Devices" of BIOS

Setup Utility is set to Enabled.

Onboard Devices Configuration

Run parallel port test

Printer driver

Printer cable

Printer

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 touch pad cable. Modem port is secured to the main board

Touch pad FPC

Audio/Touch pad board

Main board

Modem-Related Symptoms

Symptom / Error

Action in Sequence

Internal modem does not work correctly.

Ensure the telephone cable is firmly plugged into the telephone wall socket and the modem port of the computer. Modem phone port is secured to the main board. modem combo board Main board

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