HP NX9020, NX9040, NX9030, ZE4900 manual Flowchart 2.6-No Video, Part, display*?, system

Troubleshooting

Flowchart 2.6—No Video, Part 1

No video.

Internal

Internal or

external

display*?

External

Adjust

brightness.

Adjust

brightness.

A

*NOTE: To change from internal to external display, use the hotkey combination.

Y

Video OK? Done

N

Press display

switch to ensure

operation.

Y			Y
Video OK?	Done	Video OK?	Done
N		N

	Replace the following one at a time. Test after each replacement.
Check for bent	1.	Cable between notebook and notebook display (if applicable)
	2.	Inverter board (if applicable)
pins on cable.
	3.	Display
	4.	System board

N

Video OK?

Y

Done

Try

another display.

Internal and	N	Replace
external		system
video OK?		board.
Y
Done

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