Repair guides and support for your Samsung TV.

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Why tv is on, volume works and can see a picture if you shine light on

TV powers on with volume, but no picture. If you shine a flashlight on the screen you can see the picture. Worked fine the night before??

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Hi, What is the model number of your TV?

It appears as though there is a problem with the backlight circuit


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Hope This Helps :)

Quick Fixes

Try a few simple things first to try and fix your TV before replacing parts…

1 – Unplug TV overnight. Plug back in and SOMETIMES it may work and fix your issue.

2 – Unplugging the TV and everything hooked to it, then plugging it back in may clear the problem.

3 – Be sure the TV is set to the correct input. If it is set to DVI or Component input when it should be in the HDMI input this will cause issues.


If the 3 quick fix checks above do not resolve your issue, try this:

Press the TV menu button. If no menu appears the problem could be a bad tcon display board or backlight inverter board. Turn off the room light and check TV for backlight glow. If it has a glow then the problem can be a loose tcon connection or bad tcon board. Check connections.

Other possible causes for HDTV with sound but no video…

Possible TV Back-Light Inverter Board Issue:

To see if the back-light has gone out, turn the TV on. Turn the lights off and make the room dark. Shine a flashlight onto the screen at different angles. If you can see some of the picture then the back-light has gone out. (It should glow a slight grey if it’s working) To fix this you need a TV backlight inverter board. '''You can buy one online for a relatively low price. Usually the board will have a few bad capacitors on it. You could attempt to repair it yourself if you can identify which capacitor has gone bad. A capacitor kit for a TV board is ultra cheap. You are best off buying the backlight inverter board and installing it yourself. A back-light inverter board should be from $10 to $25 dollars depending on your TV model.


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