No Display Issues - Acer ASPIRE E1-521 Service Manual

No Display Issues

If the system does not display, perform the following:
No POST or Video
If the POST or video does not appear, perform the following:
Make sure that internal display is selected. Switching between internal and external by
1.
pressing Fn+F5. Reference Product pages for specific model procedures.
Make sure the computer has power by checking for one of the following:
2.
•
•
If there is no power, refer to
3.
step.
If there is power, drain the stored power by removing the power cable and battery. Hold the
4.
power button for 10 seconds.
Connect the power and reboot the computer.
5.
Connect an external monitor to the computer and switch between the internal display and the
6.
external display is by pressing Fn+F5.
If the POST or video appears on the external display only, refer to
7.
page 4-6. Otherwise, continue to the next step.
Disconnect the power and all external devices including port replicators or docking stations.
8.
Remove any memory cards and CD/DVD discs.
9.
Start the computer. If the computer boots correctly, add the devices one by one until the failure
10.
point is discovered.
Troubleshooting
Downloaded from www.Manualslib.com
NG
Replace LCD
panel/cable
panel/cable
Replace M/B
Fans start up
Status LEDs illuminate
Power On Issues
manuals search engine
Start
LCD
Can
Power on
ok
OK OK
RAM
module well
connected
OK
RAM
module OK
OK
Lcd cable
well
connected
OK
Figure 4:2. No Display Issues
on page 4-3. Otherwise, continue to the next
Go to no power
NG
Trouble shooting
step
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Connect it well
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Replace RAM
module
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Connect it well
LCD Picture Failure on
4-4