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My lg plasma 37 inch tv will not turn on. Already replaced power supply, what else xould it be?

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If the power LED at its front panel lights up, and it do not power ON by pressing the Power button at the remote control; its main board is faulty. Check and replace the damaged component/s at its main board. Contact any service technician. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Posted on Apr 02, 2015

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Posted on Jan 02, 2017

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Will not turn on I have already replaced the Samsung plasma TV pn60e530a3fxza pwr supply


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1 Answer

LG TV turns on and off by himself what's the problem?


I had an issue like yourse with an lg plasma and the problem was the power supply board. When replaced it became like new.
Good luck.

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3 Answers

60 inch LG Plasma, did have to push the power button 5 to 7 times to get the TV to power up. Now it will not come on at all


The tv before,the tv power supply board already have problems and was slowly dying,that why it require u to pushes 5 to 7 times for the tv power supply board to be able to sustance and hold power for the tv.Now the tv power supply board it is alot weaker or already dead.That why the tv dose not power on anymore.The tv power supply board that the board where the tv power a/c cord plug into it.Try website like Ebay.com to buy a whole new refurbish tv power supply board for the replacement.

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1 Answer

My lg 37 inch lcd works fine for five minutes then a big popping sound happens , i loose picture and sound but power remains, after this it will either keep popping or picture and sound will return for...


Plasma and LCD TV sets are prone to having capacitors in the power supply section fail. This is the most likely cause for the probem you describe. When capacitors fail your will commonly see one or more of the following symptoms.
  • No video, Power light is on or blinking.
  • TV is making a clicking noise.
  • TV takes a while to come on
  • Screen is very dim or flickers.

Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

Here are pictures of capacitors...Notice that the ones below look bloated. They have failed and will need to be repalced.



ecollier2012.jpg
Capacitor being replaced! Fairly easy DIY fix.

ecollier2012_0.jpg
Again, You can get a power supply repair kit with the parts, detailed instructions, and support from sites such as www.TvRepairKits.com . Or just click here to see more details on their kit.

Apr 17, 2011 | LG 37LC7D 37 in. LCD HDTV

1 Answer

My 50 inch lg plasma will shut off after using it and wont turn on. but if i leave it unplugged for an hor it usually works. the power light turns off when this happens


The tv power supply board is the causes and the problems.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.

Jan 15, 2011 | LG 50PG20 50 in. Plasma HDTV

1 Answer

Power supply not work samsung plasma tvmodel


www.scribd.com/doc/.../LG-TV-Plasma-Training-Manual
www.scribd.com/.../LG-Training-Manual-TV-Plasma-60-INCH-PDP
http://www.schematicsforfree.com/archive/file/Sony/Video/Sony%20Plasma%20Training-1.pdf
please use these service and training manual, to troubleshoot and service.

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5 Answers

LG 50 inch plasma has trouble powering up. have


Power supply board have dead capcitors.Know how to solders?These capacitors usally bulge or pop open,replaced these capacitors will solved this problem.Or tries websites Shopjimmy.com,Ebay.com to buy a Whole reburbish power supply board for the replacement.

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1 Answer

I have a lg 37 inch tv when i go to turn it on the green light on the front flicks 3 times goes red and the screen dont come on ?? any ideas thnx matt


I can't tell you if the three flashes identify the problem better but it is with fair certainty a power supply failure. It may be the main power supply or a separate board that produces the high voltage required by the plasma display.
Typically, the parts cost will not be high but the labor may run it up.
If you comment back here with a ZIP code, you may get an offer from a ~local technician.

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2 Answers

Philips 50 Inch Plasma Model 50PF7320A/37 will not turn on


Commonly it's going to be a power supply related problem. The two boards that need to be looked at is the Main Power Supply Board or the power supply board for the screen. The one that powers the screen, some manufactures call it a Backlight Inverter Board.
If you have some electronic experience, you can sometimes find a Service Manual for the TV over the internet for less than $20. It will have the all resource material for repairing your TV model. It's just the matter of replacing the bad part on the circuit board.

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1 Answer

37 inch LG LCD won't turn on due to power failure


Power failures can cause all types of problems, have you firstly checked the fuse in the mains plug? If that is ok then it may have blown an internal fuse in the power supply board, these are there to protect the rest of the circuit from power surges.

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