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When I turn on an lg 50pk750-ua it clicks twice but the screen doesn't come on, how do I fix this?

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  • 157 Answers

That clicking sound is the safety relay not clicking in to protect the TV from frying out. The problem is most likely the power board.

Posted on Jul 10, 2019

Testimonial: "Is there a part on the power board I can test or replace? I've replaced the bridge rectifier on it, and I still have the same problem."

  • b1jqxk44
    b1jqxk44 Jul 25, 2019

    Check the capacitors, for bulging or leaking, if any replace them. Also, check for open diodes, that means test on ohms one way then reverse the probes the other way. If open both ways replace the diode. Hope this solve your problem.

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
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Posted on Jan 02, 2017

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maxxratt

  • 25 Answers

SOURCE: LG 32fz4d-ua partially powers blank

I had the same problem. It was the "Flyback transformer" after they first replaced the power supply.

Posted on Dec 02, 2009

circuitworld

Circuit World

  • 335 Answers

SOURCE: when its turned on it clicks on and off over and

The logic board is sensing an overload condition and is stopping the power board from producing high DC voltage. The logic board will try 3 times to boot-up the power supply and when the same condition appears it shuts the power supply down. DC high voltage output is being held down and only 5volts stand-by is active. The power board needs to be tested and logic controls also. If you have some test equipment and some electronics background I can show you how to fix this problem....

Get back too me about this when you can....
circuitworld@comclast.net

Posted on Dec 28, 2009

alphatoy

alphatoy

  • 28 Answers

SOURCE: my lg plasma 50pk750 turns

I think i could be a power supply issue... If you have the courage to open the back cover of your tv, and you do "NOT" see any bad (bulging ) capacitors on the power supply board, then it could be the voltage regulator. Take a look at the video i posted on youtube, then you will have a better understand why your tv is clicking... I'm also selling the repair kit for this power supply board on ebay now. LG power supply Board model number EAY60968801. With anyone of these PCB # EAX61392501/7, EAX61392501/10, EAX61392501/11, or EAX61392501/12 Please Make sure that you've already gone through the process of troubleshooting and testing your tv's power supply board before making any purchases.. I recommend that you get a tv tech to check it out, because every tv is different. Email at bigthings09@gmail.com if you have any question.and watch the video:

http://www.youtube.com/watch?v=I9wF0OLyV0k&feature=youtu.be
http://www.youtube.com/watch?v=vHrv5XaDULI&feature=youtu.be

Posted on Nov 19, 2012

alphatoy

alphatoy

  • 28 Answers

SOURCE: I have a LG Plasma 50PK750 that when you turn it on and goes right back off.

This issue is a common, but hardly talked about from LG. Your tv is probably 1 or 2 months out of warranty, and now you're hearing a series of clicks. After weeks of fighting with LG to replace my tv, i decided to fix it myself. i'm proud to announce that my 50PK540 is now working. want proof? Take a look at the video i posted on youtube, then you will have a better understand why your tv is clicking... I'm also selling the repair kit for this power supply board on ebay now. LG power supply Board model number EAY60968801. With anyone of these PCB # EAX61392501/7, EAX61392501/10, EAX61392501/11, or EAX61392501/12 with the parts if this kit, I've also fis several 50PK750 models, Some clients have send me their broken power supply board, so I can do the repairs. Please Make sure that you've already gone through the process of troubleshooting and testing your tv's power supply board before making any purchases.. I recommend that you get a tv tech to check it out, because every tv is different. Email at bigthings09@gmail.com if you have any question.and watch the video:


http://www.youtube.com/watch?v=I9wF0OLyV0k&feature=youtu.be
http://www.youtube.com/watch?v=vHrv5XaDULI&feature=youtu.be

Posted on Nov 19, 2012

alphatoy

alphatoy

  • 28 Answers

SOURCE: when i inplug my lg 50pk750 plasma to power sorce

This issue is a common, but hardly talked about from LG. Your tv is probably 1 or 2 months out of warranty, and now you're hearing a series of clicks. After weeks of fighting with LG to replace my tv, i decided to fix it myself. i'm proud to announce that my 50PK540 is now working. want proof? Take a look at the video i posted on youtube, then you will have a better understand why your tv is clicking... I'm also selling the repair kit for this power supply board on ebay now. LG power supply Board model number EAY60968801. With anyone of these PCB # EAX61392501/7, EAX61392501/10, EAX61392501/11, or EAX61392501/12 with the parts if this kit, I've also fis several 50PK750 models, Some clients have send me their broken power supply board, so I can do the repairs. Please Make sure that you've already gone through the process of troubleshooting and testing your tv's power supply board before making any purchases.. I recommend that you get a tv tech to check it out, because every tv is different. Email at bigthings09@gmail.com if you have any question.and watch the video:


http://www.viewbix.com/v/LG-Repair-KIT-now-available-on-Ebay/8ec4bea5-1d91-4d23-8180-7e5214e6c8f6

Posted on Nov 19, 2012

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My 50pk750 tv won't stay turned on.


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LG 50PK750 turns off as soon as I turn on


This issue is a common, but hardly talked about from LG. Your tv is probably 1 or 2 months out of warranty, and now you're hearing a series of clicks. ... If you have the courage to open the back cover of your tv, and you do "NOT" see any bad (bulging ) capacitors on the power supply, then it could be the voltage regulator. After weeks of fighting with LG to replace my tv, i decided to fix it myself. i'm proud to announce that my 50PK540 is now working. want proof? Take a look at the video i posted on youtube, then you will have a better understand why your tv is clicking... I'm also selling the repair kit for this power supply board on ebay now. LG power supply Board model number EAY60968801. With anyone of these PCB # EAX61392501/7, EAX61392501/10, EAX61392501/11, or EAX61392501/12 with the parts if this kit, I've also fis several 50PK750 models, Some clients have send me their broken power supply board, so I can do the repairs. Please Make sure that you've already gone through the process of troubleshooting and testing your tv's power supply board before making any purchases.. I recommend that you get a tv tech to check it out, because every tv is different. Email at bigthings09@gmail.com if you have any questions.and watch the video: part 1 & 2


Repair kit on Ebay


http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200849231403


Youtube video PART 1 & 2


http://www.youtube.com/watch?v=I9wF0OLyV0k

http://www.youtube.com/watch?v=vHrv5XaDULI





Jan 07, 2012 | LG Televison & Video

1 Answer

I have a LG Plasma 50PK750 that when you turn it on and goes right back off.


This issue is a common, but hardly talked about from LG. Your tv is probably 1 or 2 months out of warranty, and now you're hearing a series of clicks. After weeks of fighting with LG to replace my tv, i decided to fix it myself. i'm proud to announce that my 50PK540 is now working. want proof? Take a look at the video i posted on youtube, then you will have a better understand why your tv is clicking... I'm also selling the repair kit for this power supply board on ebay now. LG power supply Board model number EAY60968801. With anyone of these PCB # EAX61392501/7, EAX61392501/10, EAX61392501/11, or EAX61392501/12 with the parts if this kit, I've also fis several 50PK750 models, Some clients have send me their broken power supply board, so I can do the repairs. Please Make sure that you've already gone through the process of troubleshooting and testing your tv's power supply board before making any purchases.. I recommend that you get a tv tech to check it out, because every tv is different. Email at bigthings09@gmail.com if you have any question.and watch the video:


http://www.youtube.com/watch?v=I9wF0OLyV0k&feature=youtu.be
http://www.youtube.com/watch?v=vHrv5XaDULI&feature=youtu.be

Dec 22, 2011 | LG 50PK750 50 in. Plasma HDTV

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All of a sudden my LG 50PC1DRA-UA will not stay turned on. As it powers up, the input screen appears very briefly, then the whole tv shuts off. Any common reason? What should I expect is the problem/fix...


Hello, not exactly sure what part you need to fix your tv. But, I have used a company named ShopJimmy.com in the past with great success. I included a link to your model page from their site. Hope that helps!
TeeVeeMan2@gmail.com
http://www.shopjimmy.com/catalogsearch/result/?q=50PC1DRA-UA

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1 Answer

It has power, turns on then immeiately clicks off?


This issue is a common, but hardly talked about from LG. Your tv is probably 1 or 2 months out of warranty, and now you're hearing a series of clicks. After weeks of fighting with LG to replace my tv, i decided to fix it myself. i'm proud to announce that my 50PK540 is now working. want proof? Take a look at the video i posted on youtube, then you will have a better understand why your tv is clicking... I'm also selling the repair kit for this power supply board on ebay now. LG power supply Board model number EAY60968801. With anyone of these PCB # EAX61392501/7, EAX61392501/10, EAX61392501/11, or EAX61392501/12 with the parts if this kit, I've also fis several 50PK750 models, Some clients have send me their broken power supply board, so I can do the repairs. Please Make sure that you've already gone through the process of troubleshooting and testing your tv's power supply board before making any purchases.. I recommend that you get a tv tech to check it out, because every tv is different. Email at bigthings09@gmail.com if you have any question.and watch the video:


http://www.youtube.com/watch?v=I9wF0OLyV0k&feature=youtu.be
http://www.youtube.com/watch?v=vHrv5XaDULI&feature=youtu.be

Aug 04, 2011 | LG 50PK750 50 in. Plasma HDTV

1 Answer

Tv will not turn on. Start to fire up then after about 1 second it shuts down. Never gets a chance to find a picture.


This issue is a common, but hardly talked about from LG. Your tv is probably 1 or 2 months out of warranty, and now you're hearing a series of clicks. After weeks of fighting with LG to replace my tv, i decided to fix it myself. i'm proud to announce that my 50PK540 is now working. want proof? Take a look at the video i posted on youtube, then you will have a better understand why your tv is clicking... I'm also selling the repair kit for this power supply board on ebay now. LG power supply Board model number EAY60968801. With anyone of these PCB # EAX61392501/7, EAX61392501/10, EAX61392501/11, or EAX61392501/12 with the parts if this kit, I've also fis several 50PK750 models, Some clients have send me their broken power supply board, so I can do the repairs. Please Make sure that you've already gone through the process of troubleshooting and testing your tv's power supply board before making any purchases.. I recommend that you get a tv tech to check it out, because every tv is different. Email at bigthings09@gmail.com if you have any question.and watch the video:

http://www.youtube.com/watch?v=I9wF0OLyV0k&feature=youtu.be



http://www.youtube.com/watch?v=vHrv5XaDULI&feature=youtu.be

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1 Answer

When i inplug my lg 50pk750 plasma to power sorce turn on and before show the picture it turn off.


This issue is a common, but hardly talked about from LG. Your tv is probably 1 or 2 months out of warranty, and now you're hearing a series of clicks. After weeks of fighting with LG to replace my tv, i decided to fix it myself. i'm proud to announce that my 50PK540 is now working. want proof? Take a look at the video i posted on youtube, then you will have a better understand why your tv is clicking... I'm also selling the repair kit for this power supply board on ebay now. LG power supply Board model number EAY60968801. With anyone of these PCB # EAX61392501/7, EAX61392501/10, EAX61392501/11, or EAX61392501/12 with the parts if this kit, I've also fis several 50PK750 models, Some clients have send me their broken power supply board, so I can do the repairs. Please Make sure that you've already gone through the process of troubleshooting and testing your tv's power supply board before making any purchases.. I recommend that you get a tv tech to check it out, because every tv is different. Email at bigthings09@gmail.com if you have any question.and watch the video:


http://www.viewbix.com/v/LG-Repair-KIT-now-available-on-Ebay/8ec4bea5-1d91-4d23-8180-7e5214e6c8f6

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