With any model of Panasonic Toughbook, the proper diagnostics would be to plugin an external monitor when the Toughbook in powered off, then turn on the power on the external monitor first and then finally turn on the Toughbook. If the problem is the video card then no image will display on the external monitor.
If you get an image on the external monitor, then the problems is the internal LCD screen.
The external monitor connects on the back or rear side of the CF29 in the external monitor port or VGA connector. This connector is typically "blue" in connector and has 15 pins (3 rows of 5 pins).
Good Luck and Regards from:
Richard, Montreal Based Panasonic Canada Authorized Toughbook Dealer since 1989.
SOURCE: When I turn on my CF-29 it goes straight to a
Have you tried hooking up an external monitor? If you hook it up and see video on that it's a screen issue. If you hook it up and it does the same white thing it's bad video on the motherboard.
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