Fujitsu Esprimo v5535 - screen blanking

Hello, ok have this model in for repair, the issue is that main screen keeps blanking out!

On boot you will see bit of bios boot then it goes black, it will appear for a moment when windows login appears.

pressing FN F10 can get it to show for a moment sometimes

Attaching an external monitor works and can work from external ok, the main screen remains blank but will appear briefly if you do something like start task manager, or require admin conformation.

Before seeing it i thought possible faulty screen inverter but not sure now?

any ideas?

cheers
carpermanAsked:
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splaitCommented:
Check the cable that runs from the laptop base to the screen.  It may be shorting.
Does either slightly flexing the screen or raising and lowering the screen affect it at all?
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carpermanAuthor Commented:
Already tried that but no effect, plus ow the external screen os playing up as well, wonder if it could be the graphic card?

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greg_vanderCommented:
I thought it comes from the inverter . to be sure test your computer with a live cd, and/or in VGA mode (safe mode)
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splaitCommented:
@carperman -

Are you saying the external monitor is now acting up?  If so, the problem is either a driver or the video component of the motherboard.  It sounds like a hardware problem, though, so it may be the mobo.
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carpermanAuthor Commented:
Hello, ok pretty sure it is inverter as as when unplugged screen and inverter the external work fine. Have ordered an inverter.
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splaitCommented:
Of course, without carperman's feedback, we don't know the answer, but my guess is that greg_vander was correct.  Award him the points.
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