![]() ![]() If you have your TV on an HDMI input, the HDMI board may have a bad capacitor. NOTE: On some model TVs the Inverter board and the Power unit board are on one board, so check your TV model number to be sure you are ordering the correct parts. (Replacing the power supply is the last resort as if the sound is working but there is no picture, this is most likely not the issue but on SOME TVs this fixes the problem) The power supply board will cost around $20 to $30 dollars. If you find the power supply board is bad and you decide to order a new one, make sure the power board part number matches with the one in your TV, there are many different types out there for all TV’s. If you can still hear the TV sound then it may be the power supply board. If you cannot see the screen at all using the flashlight method, then you may have a bad power supply board or loose wire/connection. A back-light inverter board should be from $10 to $25 dollars depending on your TV model.īack-light Inverter boards for all HDTV’s You are best off buying the backlight inverter board and installing it yourself. A capacitor kit for a TV board is ultra cheap. You could attempt to repair it yourself if you can identify which capacitor has gone bad. Usually the board will have a few bad capacitors on it. ![]() You can buy one online for a relatively low price. (It should glow a slight grey if it’s working) To fix this you need a TV backlight inverter board. If you can see some of the picture then the back-light has gone out. Shine a flashlight onto the screen at different angles. Turn the lights off and make the room dark. To see if the back-light has gone out, turn the TV on. Possible TV Back-Light Inverter Board Issue: Other possible causes for HDTV with sound but no video… If it has a glow then the problem can be a loose tcon connection or bad tcon board. Turn off the room light and check TV for backlight glow. If no menu appears the problem could be a bad tcon display board or backlight inverter board. If the 3 quick fix checks above do not resolve your issue, try this: If it is set to DVI or Component input when it should be in the HDMI input this will cause issues.īack of HDTV inputs – Try another input if no picture Plug back in and SOMETIMES it may work and fix your issue.Ģ – Unplugging the TV and everything hooked to it, then plugging it back in may clear the problem.ģ – Be sure the TV is set to the correct input. Try a few simple things first to try and fix your TV before replacing parts…ġ – Unplug TV overnight. Is there a way to check and see if one of the boards is causing this issue? If I do find the problem, is there somewhere to buy a new board for my TV at a decent price? I am not sure what to look for to see if a board or a part on a board is damaged. I removed the back panel cover and checked the boards. Turning the TV from ON to OFF causes it to flicker white and gray. The screen flickers in a dark room for a split moment. The TV picture has gone out but sound still works. ![]()
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