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Troubleshooting 4-5
No Display Issues 0
If the Display fails, perform the following:
Figure 4-2. No Display Issue
No POST or Video 0
If the POST or video does not appear, perform the following, one at a time.
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 Power On Issues.
3. Drain stored power by removing the power cable and battery. Hold the power button for 10
seconds.
4. Connect the power and reboot the computer.
5. Connect an external monitor to the computer and switch between the internal display and
the external display is by pressing Fn+F5.
6. If the POST or video appears on the external display only, refer to LCD Failure.
No
No
No
No
No
START
Replace
M/B
Power On?
Replace LCD
panel/cable
LCD panel/cable ok?
Ext. DDRRAM
module well
connected?
Ext. DDRRAM
module OK?
LCD cable well
connected?
go to no power
trouble shooting
step
Connect
it well
Replace
Ext. DDR RAM
module
Connect it well