Satellite Pro 4030 boots with blank screen - works OK on an external monitor

My sat pro 4030, funning W98SE, boots to a blank, white screen. When I press the lid closer or use Fn/F5 it goes black. It works OK on an external monitor.

Hi Robert,
If your display appears correctly on an external monitor then it indicates that your graohics chip is still working correctly, so you problem must lie with the LCD panel itself, the FL Inverter, or the connection cable to the main board. I would recommend that you contact an Authorised Service Partner who can carry out further tests to diagnose the fault.
regards,

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