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I was told to have a look at the power board - Televison & Video

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Power board has a number of caps that go faulty..............
replace caps or replace board,,,,,............
cheers

Posted on Apr 10, 2011

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Posted on Jan 02, 2017

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What can I check to determine if my TV's Power Supply is bad?


Iv the voltages are low, pull the power line from each of the other boards to see which one is dragging the voltages down. If none ovf the voltages return to the correct value, then the power supply board is gone. You can get all the repair parts you need from here:
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There are two boards in your TV - power board and main board.

if it's not one it's the other.

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This is why it is not always better to listen to free advices.

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First the speakers died, (didn't care because of surround sound) then it stopped turning on. I brought it to a repair service where the man told me it needed a new power supply, and that he had also fixed...


You need to find out mare as to what else that the repair shop left out, all the coonectors need to be checked to see if they are in correct place, beside missing the SPEAKER board, no other boards are missing? I would go back and have them put all the old boards back inplace, he may have takebn out the inverter board and others to use for other repair jobs.
You may need the service manual to figure out.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.
Please leave rating if it helps.

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In 42"panasonic plasma tv, standby red light would flicker then rather than turning into green and starting tv, it would turn off. I called plasma tv repair center at sion and vashi, they said that in Y...


Tv having a power supply board problems,not giving the tv the right voltages anymore.That the board,where the power a/c cord plug into it.Try website like Ebay.com to buy a refurbish power supply board for the replacement.

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Was told power unit had to be replaced how much will that cost?


If you are handy with a soldering iron you can do the repair yourself. 90% of power problems stem from cracked solder joints on power board & convergence board. All you need to do is heat up the existing solder and add a little fresh solder to the joint. I had a power problem on my Toshiba 50". Service guy told me a new board would be $165 + $150 for labor. I wasn't paying that so before trashing it I grabbed my soldering iron and resoldered every joint on the power board and convergence board. Bingo! No more power problem and it only cost me $25 in supplies.

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i have a hitachi 42edt41a that had no power and i replaced the power supply board, now it has power and sound and no picture, was told it now needs a y sustain board also

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No picture or sound,but shows to be on with power button light and blinks when turn up volume or channel was told the ssb board


HI BENJIMAN, I HAD THE SAME PROBLEM AND COULD NOT FIND NOTHING WRONG THEN I SEEN THAT THE POWER CORD WAS MOVING WAY TO MUCH, BUT EVERTHING LOOKED OK ON BOTH SIDE OF THE BOARD, WHEN I UN SOLDERED THE TWO LEADS IT WAS BURNED UNDER. I RAN JUMPERS AND BINGO I HAD PICTURE AND SOUND. THAT WAS MY PROBLEM GOOD LUCK.

CHIEFMIGGYMAN

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