No Beep Error Messages - Acer TRAVELMATE 4740 Service Manual

Error Messages
Invalid System Configuration Data
I/O device IRQ conflict
Operating system not found

No Beep Error Messages

No Beep Error Messages
No beep, power-on indicator turns off and
LCD is blank.
No beep, power-on indicator turns on and
LCD is blank.
No beep, power-on indicator turns on and
LCD is blank. But you can see POST on an
external CRT.
No beep, power-on indicator turns on and a
blinking cursor shown on LCD during
POST.
No beep during POST but system runs
correctly.
Chapter 4
FRU/Action in Sequence
Test or replace the BIOS ROM.

Test or replace the mainboard.

Run "Load Setup Defaults" using the BIOS Setup Utility,

then reboot the system.
Test or replace the RTC battery, run the BIOS Setup

Utility to reconfigure system time, then reboot the
system.
Test or replace the mainboard.

Run the BIOS Setup Utility and see if fixed disk and drive

A: are properly identified.
Test or replace the diskette drive.

Test or replace the hard disk drive.

Test or replace the mainboard.

FRU/Action in Sequence
Test the power source (battery pack and power adapter).

See "Power System Check" on page 67.
Make sure that every connector is connected tightly and

correctly.
Reconnect the SO-DIMM.

Test or replace the LED board.

Test or replace the mainboard.

Test the power source (battery pack and power adapter).

See "Power System Check" on page 67.
Reconnect the LCD connector.

Check the hard disk drive.

Check the LCD cable.

Test or replace the LCD.

Test or replace the mainboard.

Reconnect the LCD connector.

Check the LCD cable.

Test or replace the LCD.

Test or replace the mainboard.

Make sure that every connector is connected tightly and

correctly.
Test or replace the mainboard.

Test or replace the speaker.

Test or replace the mainboard.

71