No Display Issues - Acer ASPIRE 4253 Service Manual

No Display Issues

If the Display does not work, perform the following:
Replace
LCD panel/
LCD cable
Figure 4-2. No Display Issue
No POST or Video
If the POST or video does not appear, perform the following:
1. Make sure that internal display is selected. Switching between internal and external by
pressing Fn+F5. Reference product pages for specific model procedures.
2. Make sure the computer has power by checking for one of the following:
Fans start up
Status LEDs illuminate
If no power, refer to
3. Drain stored power by removing the power cable and battery. Hold the power button for 10
seconds.
Troubleshooting
LCD module
No
OK?
Replace
M/B
Power On Issues.
0
START
Power On? No
Ext. DDRRAM
No
module well
connected?
Ext. DDRRAM
No
module OK?
CPU thermal
No
module well
screw?
Power On Issues
Check
connection
Replace
Ext. DDR RAM
module
Fasten Screw
0
4-5