Satellite L750D - brightness FN key problem

Hello

Had a bit of a problem, trying to figure out why my screen was black, worked through HDMI and a second monitor ran without drama, but as soon as the diagnosis established, is to adjust the brightness of FN keys.

When I put my brightness key FN adjust less than 6 years (5 or less) it will clear, black (black not total as long as the information is still there but almost impossible to see).

I launch colormunki on that on the screen which is currently updated the color profile.

Does anyone know if color monitors of profiling leads to problems of drama with the brightness of the screen FN?

Or maybe it is something different all together.

Hello

It seems that the portable computer s display supports the LED backlight.
Usually the FL inverter controls the backlight of the display.
As far as I know than the Panel FL inverter and LCD are connected to the motherboard. The fluorescent lamp is connected to the FL inverter Board.

In your case, it might be possible that the screen, fluorescent lamp or the FL inverter might not work.

Don t think that the graphics card is affected from the external screen is OK.
So in your case, I would recommend asking a single Toshiba ASP to check parts

By the way: have you tried to update the BIOS or the display driver? I think it is worth a try before contact with service agents.

Tags: Toshiba

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