Acer DT85 Laptop User Manual


 
CHAPTER 4: Troubleshooting
146
No-beep error messages
Invalid System Configuration Data Test or replace the BIOS ROM.
Test or replace the system board.
I/O device IRQ conflict Run “Load Setup Defaults” using the BIOS Setup Utility, then
reboot the notebook.
Test or replace the CMOS battery, run the BIOS Setup Utility
to reconfigure system time, then reboot the system.
Test or replace the system board.
Operating system not found 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 system board
No-beep Error Messages FRU/Action in Sequence
No beep, power-on indicator turns off and
LCD is blank.
Test the power source (battery pack and power adapter). See
“Testing the power system” on page 140.
Make sure that every connector is connected tightly and
correctly.
Reconnect the SO-DIMM.
Test or replace the LED board.
Test or replace the system board.
No beep, power-on indicator turns on and
LCD is blank.
Test the power source (battery pack and power adapter). See
“Testing the power system” on page 140.
Reconnect the LCD connector
Check the hard disk drive.
Check the LCD inverter ID.
Check the LCD cable.
Test or replace the LCD inverter.
Test or replace the LCD.
Test or replace the system board.
No beep, power-on indicator turns on and
LCD is blank. But you can see POST on
an external CRT.
Reconnect the LCD connectors.
Check the LCD inverter ID.
Check the LCD cable.
Test or replace the LCD inverter.
Test or replace the LCD.
Test or replace the system board.
No beep, power-on indicator turns on and
a blinking cursor shown on LCD during
POST.
Make sure that every connector is connected tightly and
correctly.
Test or replace the system board.
No beep during POST but system runs
correctly.
Test or replace the speaker.
Test or replace the system board.
Error Messages FRU/Action Sequence