My screen is dark on one side. What do I do? - Toshiba REGZA 47HL167 TV

Hey Steve,
Sorry to be the bearer of bad news but you have a bad LCD panel tab. There are videos on youtube that show you how to repair this but they are temporary in nature.

It sounds like a back-light problem. Check all the CCFL back-lights.

could there be some device generating a magnetic field nearby e.g. speakers?

did you tried to make an adjustment in brightness in the set up menu,if the adjustment is good then still too dark. you must check the connector for screen back light which loose from the inverter board. at this time you will need to removed the rear cover to access the inverter board.

The TV requires thorough servicing and this might require attention by a qualified service technician.

When you say the screen is dark, do you mean that the picture is still faintly visible or is the left side black with a sharp edge between the black and the visible picture?

If the screen is dark with a faintly visible picture then you have a faulty backlight. This could be due to the inverter board, which can be repaired or replaced, or it could be the CCFL tube which is a bit harder to replace.
If the left side is completely black with a sharp edge then the LCD itself is faulty and may require replacing.

In any case, any of the problems listed above should only be repaired by a competant electronics engineer.

its inside the screen its pretty much not gonna work right ever again and i wouldnt waste too much time on it

If still under warranty, I would suggest going that way as this is a bad matrix driver....

bad panel

reset your monitor settings with deafaults with menu.u see some buton on lcd or monitor.