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Acer Aspire 3935 Service Guide
Operating system not found
Run the BIOS Setup Utility to check if the fixed disk and drive
A are properly identified.
Optical disc drive
Hard disk drive
Mainboard
Power-on indicator turns off and LCD is
blank.
Power source (battery pack and power adapter.) See “Power
System Check” section on page 72.
Make sure all connectors are connected tightly and correctly.
Reinstall the DIMM.
Mainboard
Power-on indicator turns on and LCD
is blank.
Power source (battery pack and power adapter.) See “Power
System Check” section on page 72.
Reconnect the LCD cable
Hard disk drive
LCD panel
Mainboard
Power-on indicator turns on and LCD is
blank. POST is visible when using an
external CRT.
Reconnect the LCD cable.
LCD panel
Mainboard
Power-on indicator turns on and a
blinking cursor is during POST.
Make sure all connectors are connected tightly and correctly.
Mainboard
Failure Fixed Disk
Reconnect the HDD connector.
Select “Load Setup Defaults” in the BIOS Setup Utility’s Exit
menu.
Hard disk drive
Mainboard
No beep, power-on indicator turns off and
LCD is blank.
Power source (battery pack and power adapter). See “Power
System Check” on page 72
Make sure all connectors are connected tightly and correctly.
Reconnect the DIMM.
Mainboard
No beep, power-on indicator turns on and
LCD is blank.
Power source (battery pack and power adapter). See “Power
System Check” on page 72
Reconnect the LCD cable.
Hard disk drive
LCD cable
LCD panel
Mainboard
No beep, power-on indicator turns on and
LCD is blank. But you can see POST on an
external CRT.
Reconnect the LCD cable.
LCD panel
Mainboard
No beep, power-on indicator turns on and a
blinking cursor shown on LCD during
POST.
Make sure all connectors are connected tightly and correctly.
Mainboard
No beep during POST but system runs
correctly.
Speaker
Mainboard
Error Messages
Check or do the following in sequence: