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 doesn't work).

LCD inverter ID

LCD FPC cable

LCD inverter

System board

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

Reconnect the LCD connectors.

LCD inverter ID

LCD FPC cable

LCD inverter

System board

LCD has extra horizontal or vertical lines displayed.

LCD inverter ID LCD inverter LCD FPC cable LCD

System board

Indicator-Related Symptoms

Symptom / Error

Action in Sequence

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

Reconnect the LED board LED board System board

Power-Related Symptoms

Symptom / Error

Action in Sequence

Power shuts down during operation.

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

Audio-I/O & battery connection board System board

The system doesn't power-on.

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

Audio-I/O & battery connection board System board

The system doesn't power-off.

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

Hold and press the power switch for more than 4

seconds.

System board

Power-Related Symptoms

Symptom / Error

Action in Sequence

Battery can't be charged

Power System Check 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 DOS or Windows, multimedia programs, no sound comes from the computer.

Press Fn-F8, Speaker ON/OFF control.

Audio driver

Speaker

Audio/Battery connection board System board

Internal speakers make noise or emit no sound.

Press Fn-F8, Speaker ON/OFF control. Speaker

Audio/Battery connection board 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

Check with Sleep Manager.

The system doesn't enter hibernation mode and four short beeps every minute.

Hibernation Mode

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

Touchpad

Keyboard

Hard disk connection board Hard disk drive System board

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

Standby Mode LCD cover switch System board

The system doesn't resume from hibernation mode.

Hibernation Mode Hard disk connection board Hard disk drive System board

Power Management-Related Symptoms

Symptom / Error

Action in Sequence

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

Standby Mode LCD cover switch System 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 to use battery until power off, then charge battery).

Battery pack

Charger board

System board

System hangs intermittently.

Set Thermal Sensor Threshold. 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 Running PQA Diagnostics Program. System board

USB does not work correctly.

System Diagnostics Diskette System board

Print problems.

Ensure that 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 that the "Serial Port" in the "Onboard 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.

System Diagnostics Diskette Modem phone jack Modem board System board

NOTE: If you cannot find a symptom or an error in this list and the problem remains, see "Undetermined Problems" on page 69.

NOTE: If you cannot find a symptom or an error in this list and the problem remains, see "Undetermined Problems" on page 69.

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