Bad panel or electronics issue?

[edugimeno]

Hi again!
This user is selling a LG RZ-42PX11.
He describes the issue as "everything shows up pixelated".
He sent the attached picture and he said it's always like that.
He lives far from me so before I try to buy it I'm trying to determine if it's a PANEL issue or a BOARD issue, to guess if I will be able to fix it a a reasonable price.
Can you guess what's wrong from the attached picture?

Thanks a lot!

[chrismurphy]

Re: Bad panel or electronics issue?

Probably not the panel i would suspect T-con ,but really why would you bother with a 42 inch tv . if its free ok but i would not even consider if he wants money for it

[edugimeno]

Re: Bad panel or electronics issue?

Well everyone here post their broken TVs for sale "for repair or parts" and they want money. If I get a reasonable price (low 10's) isn't it still worth getting a 42" TV in working condition for $20 more bucks for the T-con board?

[Andrew F. Ali]

Re: Bad panel or electronics issue?

My 1st thought would be T-CON Bd, then my 2nd guess would be Main Bd. This does not look like Panel problem. Not sure if the replacement Bds are available, depending on the price and age. If you can fix the Bds. then I would say 'Go for it'.........

[freakaftr8]

Re: Bad panel or electronics issue?

I vote mainboard. Reseat LVDS first.

[edugimeno]

Re: Bad panel or electronics issue?

Sounds good, I like that everyone hee is agreing that the panel looks OK, which is my main concern.
Ok I will probably check availability for those boards and then decide.
Thanks folks!

[steviewonder]

Re: Bad panel or electronics issue?

Firstly, this is is a plasma tv,and has no t-con.These are the first plasma sets I started with,and have repaired lots of them in the past.it's a very old set,from 2006.this has a failed lower buffur board-the bottom ic fails consistently.Best avoided,for two reasons-it's very old-and secondly,a buffer board would now be as rare as hens teeth,Unless you fancy swapping a 128 pin chip!

[maxvalutech]

Re: Bad panel or electronics issue?

steviewonder is spot on and personally even if the set was free I wouldn't bother. Just gave away a similar plasma (Celestial never heard of it before) which I got going again by cleaning side buttons - power hog and 720 pic. The recipient had given me an LG plasma to look at but it too is old and not worth too much time and effort nor money.

[mara2054]

Re: Bad panel or electronics issue?

Hi.
First of all, I would try the panel alone with a panel test.
Then I would go to look for the failure on the logic.
Good work friends
Mariano

[steviewonder]

Re: Bad panel or electronics issue?

I wouldn't bother with any of that.Failure of the bottom I.C on the lower buffer board.It's a fact!....removal of the the lower buffer will result in half a picture.If you don't mind 1.5 " of picture missing from the bottom,simply remove it. (the I.C)
A cheap option fix for a otherwise good performer in it's day.with outstanding sound quality .The IC mentioned will have pinholes in it,where it is burnt.
Good luck!
Go Along with maxvalutech and avoid if you can.

[steviewonder]

Re: Bad panel or electronics issue?

The advice isn't guesswork ,incidentally,I have worked for LG!

[petehall347]

Re: Bad panel or electronics issue?

Firstly, this is is a plasma tv,and has no t-con.These are the first plasma sets I started with,and have repaired lots of them in the past.it's a very old set,from 2006.this has a failed lower buffur board-the bottom ic fails consistently.Best avoided,for two reasons-it's very old-and secondly,a buffer board would now be as rare as hens teeth,Unless you fancy swapping a 128 pin chip!

is there a tutorial on swapping those chips ?

[steviewonder]

Re: Bad panel or electronics issue?

Just found this,Which is a good tutorial:
https://youtu.be/RyLIrUpkDnY

[edugimeno]

Re: Bad panel or electronics issue?

Thanks guys for all the advice. Yes steve, when I read T-con something inside me was asking "isn't this a plasma TV??". But I'm not knowledgeable enough to discuss much in this subject. All I've done is repair 2 or 3 sets.
Finally I won't be picking this TV, not only cause the fix doesn't look too easy, also the seller lives 200 Km away from me and also he's asking 50€!! Too much for the risk.

Thanks again guys