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No Display Issue
If the Display doesn't work, perform the following actions one at a time to correct the problem. Do not replace
a non-defective FRUs:
No POST or Video
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 140.
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).
Chapter 4
START
Power On?
NG
OK
Extenal RAM
NG
well connected?
OK
External RAM
NG
OK?
OK
LCD Cable
NG
well connected?
OK
LCD
Panel/Cable
NG
OK?
OK
Replace
Mainboard
Go to Power
On Issue
section
Connect well
Swap External
RAM module
Connect well
Swap LCD
Panel/Cable
141
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