Question about Polaroid TDA-03211C 32 in. LCD HDTV
Now,turn on the tv again describe what the cause now like power LED light indication flashes or no power at all or have sound no video.Tell me the current cause of the tv now,so i will tries diagnose the problems and help u to buy refurbishes boards to fix it.
Posted on Oct 13, 2010
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Posted on Jan 02, 2017
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Feb 03, 2014 | Polaroid TDA-03211C 32 in. LCD HDTV
Apr 11, 2012 | Polaroid TDA-03211C 32 in. LCD HDTV
Power on the unit in the dark room then shine with the flashlight directly in the screen, you will barely see the images. This is because your backlight is not functioning. The following reason is the caused.
1. Power supply - missing B+(supply voltage) coming from this board feeding the inverter board. This is caused by faulty transistor, dried/leaky electrolytic capacitor, open fusible resistor.
2. Inverter board - even the B+ is good from the power supply, if the fuse, driver transistor, driver transformer is faulty no output to the backlight resulting to black picture.
3. Busted backlight - even inverter board is good but if this is busted resulting to black picture also.
Diagnosing the fault is technical and if you don't have necessary tools and test instrument and can't fix it yourself, I would advice you to look for an experienced technician to isolate the problem.
Hope I helped you.
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