Index of SymptomtoFRU Errors

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 cable LCD inverter LCD

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" on page 81. 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" on page 81. Battery pack Power adapter

Hard drive & battery connection board System board

Power-Related Symptoms

Symptom / Error

Action in Sequence

The system doesn't power-off.

Power source (battery pack and power adapter). See "Power System Check" on page 81.

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

Battery can't be charged

See "Check the Battery Pack" on page 82. 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

See "Save to Disk (S4)" on page 25. Keyboard (if control is from the keyboard) Hard disk drive System board

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

Press Fn+o 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

See "Save to Disk (S4)" on page 25. LCD cover switch System board

Power Management-Related Symptoms

Symptom / Error

Action in Sequence

The system doesn't resume from hibernation mode.

See "Save to Disk (S4)" on page 25. Hard disk connection board Hard disk drive System board

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

See "Save to Disk (S4)" on page 25. 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 use battery until power off, then charge battery).

Battery pack

System board

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

Keyboard/Touchpad-Related Symptoms

Symptom / Error

Action in Sequence

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 cannot find a symptom or an error in this list and the problem remains, see "Undetermined Problems" on page 92.

NOTE: If you cannot find a symptom or an error in this list and the problem remains, see "Undetermined Problems" on page 92.

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Responses

  • adolfo
    How many cale 4810T main battery?
    7 years ago
  • Jan
    Where is the hibernate switch on a acer 4810T laptop?
    7 years ago

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