LG 50PG20-UA HD Plasma issue...

[pansatdishman]

Hello, I have a 50" Lg Plasma HD model 50PG20 the picure works fine but about the 3rd of the way down it has about a 1 inch horizontal line across the screen, I have not done anything to this tv yet what would you suggest and what is the issue?
thanks
Picture of the tv screen



Bad upper y buffer board?

Thanks

[tom66]

Re: LG 50PG20-UA HD Plasma issue...

Upper Y buffer would be my guess.

[pansatdishman]

Re: LG 50PG20-UA HD Plasma issue...

is there a way to fix the buffer board, i'm use to fixing power supply's but i know these circuit board are way smaller. is there a way to check to see if its the board or the pannel?
thanks tom66

[tom66]

Re: LG 50PG20-UA HD Plasma issue...

There is no way the panel could cause this in my opinion. Repairing buffer boards is possible, but may not be worth it depending on the price and your ability. The buffer chips require good soldering skills to replace. If you're up to replacing a 128 pin chip with 0.5mm between pins, you may be able to do it. Otherwise, swap the board.

[pansatdishman]

Re: LG 50PG20-UA HD Plasma issue...

Alright thanks, I'm not that good at soldering lol I would cause more damage to it then I would fix it lol
that board says,
EBR50039007
YDRVTP
HS500891031
are there any other boards with different numbers that are compatible?
thanks for your help

[tom66]

Re: LG 50PG20-UA HD Plasma issue...

Looks to be around $63, new:
http://www.partstore.com/Model/LG+El...R50039007.aspx

Not bad really, used prices are around $50~60 but all seem out of stock.

[pansatdishman]

Re: LG 50PG20-UA HD Plasma issue...

Thanks for the reply unfortunately i'm in canada so i'm going to hve to search a little harder, thanks for your help though its greatly appreciated

[pansatdishman]

Re: LG 50PG20-UA HD Plasma issue...

are EBR50039005 and EBR50039007 the same and interchangeable?
thanks

[tom66]

Re: LG 50PG20-UA HD Plasma issue...

They may be. To be sure, you will need to see if all dimensions and connectors are the same, and that it is used in the same plasma panel (not TV model, the plasma glass itself, which has a sticker on the metal plate e.g. LG Electronics PDP50G8#####)

[pansatdishman]

Re: LG 50PG20-UA HD Plasma issue...

Looks to be around $63, new:
http://www.partstore.com/Model/LG+El...R50039007.aspx

Not bad really, used prices are around $50~60 but all seem out of stock.

I was just curious as that site says EBR500039005
Here's my panel details:
It's a Mexico model,
the sticker says:
Model: PDP50G10343
Mexico 2008.09
Thanks for your help

[tom66]

Re: LG 50PG20-UA HD Plasma issue...

You need to check if those boards came from a PDP50G1 panel but they'll probably work.

[pansatdishman]

Re: LG 50PG20-UA HD Plasma issue...

Thanks, sorry for all the questions i'm new to this so does this mean an 05 and a 07 board are interchangeable
http://www.shopjimmy.com/catalogsear...?q=EAX50051102
thanks

[johnboy1313]

Re: LG 50PG20-UA HD Plasma issue...

Looks like it. They both show EBR55323602 as a substitute.

[pansatdishman]

Re: LG 50PG20-UA HD Plasma issue...

Thanks for the help, I just tried turning my tv on today, the back has been off it for months, now i get sound but no picture (i haven't changed the y buffer board yet) i noticed the back of it is fairly dusty and the power supply makes a hum when on. i think i have a bigger issue? i should also add i removed the heatsinks from the top y buffer board and the glue around the chips on the top y buffer board
thanks

[tom66]

Re: LG 50PG20-UA HD Plasma issue...

Yeah, the glue around the buffer chips is vital (high voltage insulation), the buffer is probably fried now... hope the Y-sus is still OK.
Try with top buffer unplugged.

[pansatdishman]

Re: LG 50PG20-UA HD Plasma issue...

with the top buffer removed i get picture on the bottom half only its distortedi'm assuming thats because to work properly it needs both buffers?
thanks for helping me with my stupidity

[tom66]

Re: LG 50PG20-UA HD Plasma issue...

Yes that indicates your Y-sus is OK and your bottom buffer is most likely OK. Both buffers are required for a good image.

[pansatdishman]

Re: LG 50PG20-UA HD Plasma issue...

thanks i was worried for a second i ruined it , now it looks like i need a top buffer board for sure

[rccrasher65]

Re: LG 50PG20-UA HD Plasma issue...

I have the same LG 50PG20 -ua, I'm having power issues. I have standby(red), when I try to power set on, It goes from red to 2flashes blue, then steady blue. I have no pic or sound, but I have not tried an external source for sound, didn't think it would work if tv doesn't power up, anybody have any suggestions. checked all the voltages, all seem good. Any help would be appreciated, thanks George