Screen stays dark - Toughbook Panasonic Computers & Internet

On ALL Panasonic Toughbook Models,
if the screen stays dark I would shut-off the
Toughbook and connect an external monitor
to the VGA port (15-pin female connector),
which is usually BLUE in color.

Make sure the monitor is ON first, then
turn ON the Toughbook.

If the monitor comes on then your problem
is the backlight or possibly the inverter of the
screen.

If no image is shown on the external monitor
and the screen stays dark and you cannot
hear any startup (ie. Windows) sound, then
your video card may be defective. Very few
Toughbooks fail this way since they are
normally very very relaible but it can happen.

Good Luck
Regards,
Richard - Montreal Based
Panasonic Canada Toughbook Authorized Dealer since 1989