Acer TRAVELMATE 4740 Service Manual

Also see for TRAVELMATE 4740: Quick guide Service guide

Contents

Acer TRAVELMATE 4740 Service Manual Manual pdf 81 page image

Chapter 4 71No Beep Error MessagesInvalid System Configuration Data  Test or replace the BIOS ROM. Test or replace the mainboard.I/O device IRQ conflict  Run “Load Setup Defaults” using the BIOS Setup Utility,then reboot the system. Test or replace the RTC battery, run the BIOS SetupUtility to reconfigure system time, then reboot thesystem. Test or replace the mainboard.Operating system not found  Run the BIOS Setup Utility and see if fixed disk and driveA: are properly identified. Test or replace the diskette drive. Test or replace the hard disk drive. Test or replace the mainboard.No Beep Error Messages FRU/Action in SequenceNo beep, power-on indicator turns off andLCD is blank. Test the power source (battery pack and power adapter).See “Power System Check” on page 67. Make sure that every connector is connected tightly andcorrectly. Reconnect the SO-DIMM. Test or replace the LED board. Test or replace the mainboard.No beep, power-on indicator turns on andLCD is blank. 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.No beep, power-on indicator turns on andLCD is blank. But you can see POST on anexternal CRT. Reconnect the LCD connector. Check the LCD cable. Test or replace the LCD. Test or replace the mainboard.No beep, power-on indicator turns on and ablinking cursor shown on LCD duringPOST. Make sure that every connector is connected tightly andcorrectly. Test or replace the mainboard.No beep during POST but system runscorrectly. Test or replace the speaker. Test or replace the mainboard.Error Messages FRU/Action in Sequence