No Display Issues; No Post Or Video - Acer Aspire 3 A315-44 Service Manual

No Display Issues

If the system does not display, perform the following:
Replace LCD
panel/cable

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.
• Fans start up
• Status LEDs illuminate
If there is no power, refer to
3.
step.
If there is power, drain the stored power by removing the power cable. Hold the power button
4.
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.
4-4
NG
LCD panel/
cable ok
OK
Replace M/B
Figure 4-2. No Display Issues
Power On Issues
Start
NG
Can
Power on
OK
RAM
NG
module well
connected
OK
NG
RAM module OK
OK
NG
lcd cable well
connected
OK
on page 4-3. Otherwise, continue to the next
LCD Picture Failure
Go to no power
Trouble shooting
step
Connect it well
Replace RAM
module
Connect it well
on
Troubleshooting