Re: LG 50PZ570 Plasma
Please, really need some help!
Replaced the main and Z-sus.
I now have some flickering image, but no image.
I can hear a loud buzz noise coming from Y-sus.
Looked over for another board without sucess.
Any one?
putz182
New Member
Last Activity: 06-13-2015, 10:19 PM
Joined: 05-19-2015
Location: Belo Horizonte - MG
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Re: LG 50PZ570 Plasma
Updates!
I checked and the Z-sus is gone!
I also checked the T-con and is ok.
Buffers ok.
Y-sus ok
PSU ok
Is there any way I can repair the main board?Leave a comment:
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Re: LG 50PZ570 Plasma
Really sad...
I checked for shorts and none were found in the buffers, but I did tried as tom suggested. Not good idea.
I live in Brazil and I'm having lot of difficulties to find the boards here. Do you guys know a provider that I can import?
If it is the main board, how to explain Vs oscillating?...Leave a comment:
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Re: LG 50PZ570 Plasma
I tried, I disconnected the buffer board and power the TV. Guess what?
Just got a visible spark coming from the PSU.
What the hell a did wrong?
Tried to power on, but no life at all. Power on and off after...
Now what? Can I fix it to?...Leave a comment:
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Re: LG 50PZ570 Plasma
What is making the Vsc oscillating then?
I can not make a clear reading?
Wouldn't that be a Fet problem?Leave a comment:
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Re: LG 50PZ570 Plasma
Just went through Y-sus and Z-sus test, Check the results:
[ATTACH]112447[/ATTACH]
[ATTACH]112448[/ATTACH]
I need the experts now. Does it really means that there is a failure?
I also checked the Vsc on Y-sus B/D, but it unreadable. It is oscillating a lot.
I will pick a 100x probe and post the wave as well.Re: LG 50PZ570 Plasma
Just went through Y-sus and Z-sus test, Check the results:
[ATTACH]112447[/ATTACH]
[ATTACH]112448[/ATTACH]
...Leave a comment:
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Re: LG 50PZ570 Plasma
Check the TV pictures.
I can not explain why, but I do agree. I think it is the main board.
Can I look for the problem myself or it is better just replace it?
I want to be sure.
I will read the service manual. Thank you.
Any other suggestions are welcome.
[url=http://postimg.org/image/835k3037h/][/url]
[url=http://postimg.org/image/6e128ocvx/][/url]
[url=http://postimg.org/image/7b2w3sz0d/][/url]
[url=http://postimg.org/image/puh6hgim5/][/url]
Leave a comment:
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LG 50PZ570 Plasma
Hi,
after 3 years my plasma TV is gone. I started some digging before send it to repair, even before I know that it I will come back to me.
The technicians just want to replace every single board in my TV. I can not see the point so I start the quest to fix it myself.
First the symptoms.
It started with RCA, sometimes the image was gone but with sound, the power cycle fix it, or even changing TV source. So far so good.
After, HDMI faced solarized picture (negative picture like). Power cycle was handle it. Strange it may... -
Re: New Members - please post your introductions here
Hi, I am just someone one goggling over night searching for someone that can help with my problem. I am an engineer without money and with an defect TV. I hope to find help here.Leave a comment:
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