Question about Protron PLTV3250 32 in. LCD Television

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The tv wont turn on

I was watching my tv and then all of a sudden the tv turned off and now it wont turn back on...i tried to replug it in, pushing the power button, changing the batteries in the remote (the obvious stuff) so yea im not sure what to do

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Failed power supply is very common problem with this TV.
Check the power supply; look for bad caps with leaking/bulging tops, check to see if you have standby +5vdc at the power supply connector, the front red indicator will not be on if you do not have this +5vdc standby voltage due to shorted out Q7 and ZD4.
http://s807.photobucket.com/albums/yy352/budm/Protron%20PLTV%203250/

Power supply: http://www.google.com/products?rlz=1T4GGIH_enUS282US283&q=pltv+3250+power+supply&um=1&ie=UTF-8&ei=9lIDTL7XO4fcM7HA-Ds&sa=X&oi=product_result_group&ct=title&resnum=1&ved=0CCgQrQQwAA

If you are going to DIY and have proper tools and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

Posted on Jul 04, 2010

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There is a main line fuse on the power supply of your TV that could blow when hit with a surge. This is one of many possible causes of a "dead set". The power supply could be working just fine but the micro is not operating so it will do nothing. If you lose the supply to the keypad that controls the power button and the IR receiver you will also not be able to turn the TV on and the TV just sits there. Check the electrical outlet with another device first to make sure it is on. It's an easy check that you can do without paying for a technician. If it's good then you will need a technician to take a look at what could have caused it to fail. The literature available on this model is not too great so it might be hard to really pinpoint. The first thing I would ask is how it went out. If it gradually became harder to turn on, having to hit the power button a few times or having to unplug and plug back in then I would immediately start suspecting capacitors on the power supply. I would visually inspect them for any dome topped caps and replace them with the value printed on them. If not then I would find the line fuse and make sure it is closed.

Best Regards,
Beach TV Repair

Posted on Jul 04, 2010

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