Polaroid TDA-03211C 32 in. LCD HDTV Logo
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Dylan Stover Posted on Mar 23, 2015
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Screen goes black, still have sound. Been researching for hours please HELP!

I've seen this question answered a few times all over the internet but I'm having a problem. They all say open the back up and look for the red light (when you turn the TV on). Apparently there's four dipswitches either above or to the right of this light with the bottom labeled "burn." You are supposed to switch this on and then you're tv shall work. My problem is that I CANNOT FIND THESE SWITCHES!!!! I've literally looked all over the upper circuit board (and lower) yet cannot find them. Also, I don't know if this will help but the red light is blinking when I turn it on, not solid. PLEASE PLEASE HELP!!!!

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The Knight

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  • Polaroid Master 76,851 Answers
  • Posted on Mar 23, 2015
The Knight
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Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
In some models of LCD TVS; the backlight inverter and its T'Con board will be a part of the panel itself, and will be a built-in type inside the LCD panel. If so, they can't be replaced. In this case; a panel replacement is the only repair. For some other models, the backlight inverter section circuit will be a part of the main power supply regulator [SMPS]. To such sets, the power supply section circuit too should be troubles hooted. Contact any service technician. The circuit will differ with models and versions.
Type in the brand name of your device, in the search box [at the top right] of the display window and the Search will start at once as you type in, and will show you all the related posts. It will make surf easy.

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