Aspire 8943G Series_SG - Acer Support

No Display Issue
If the Display doesn’t work, perform the following actions one at a time to correct the problem. Do not replace
non-defective FRUs:
Replace LCD
Panel and
Cable
No POST or Video
No
LCD Module OK?
Replace the
main board
START
Power On ? No
Ext. DDRAM module
connected properly?
Ext. DDRAM
module functional?
CPU Thermal
Module properly
connected?
Go to No Power
troubleshooting
step
Reconnect
SDRAM Module
Replace external
DDRAM module
Remove and
replace thermal
module
If the POST or video doesn’t display, perform the following actions one at a time to correct the problem.
1. Make sure that the internal display is selected. On this notebook model, switching between the internal
display and the external display is done by pressing Fn+F5. Reference Product pages for specific model
procedures.
2. Make sure the computer has power by checking at least one of the following occurs:
• Fans start up
• Status LEDs light up
If there is no power, see “Power On Issue” on page 172.
3. Drain any stored power by removing the power cable and battery and holding down the power button for
10 seconds. Reconnect the power and reboot the computer.
4. Connect an external monitor to the computer and switch between the internal display and the external
display is by pressing Fn+F5 (on this model).
If the POST or video appears on the external display, see “LCD Failure” on page 175.
5. Disconnect power and all external devices including port replicators or docking stations. Remove any
memory cards and CD/DVD discs. Restart the computer.
Chapter 4 173
No
No
No