Lg 42pc3d weird picture.

[Malachi]

I got this lg 42pc3d with bad picture. I replaced the zsus as the other lg's I had all had zsus problems and the screen kind of looked like this.
But with the used working zsus there is no change. Picture looks the same with the zsus plugged in as it does unplugged.

[aaronwt6]

Re: Lg 42pc3d weird picture.

Have you checked the fuse on the replacement ZSUS? My first guess would be that the replacement is also bad. The proof is in the fact that it looks the same with it unplugged.

[Malachi]

Re: Lg 42pc3d weird picture.

I just checked it and indeed there was a bad fuse. I replaced the fuse. Now the tv no longer turns on. The relay clicks, from led flashed green a couple of times and goes back to red.
Bad ysus?

[Hamie]

Re: Lg 42pc3d weird picture.

Does it still turn on with the z-sus unplugged?

[Malachi]

Re: Lg 42pc3d weird picture.

Yes. The picture I posted is with the zsus unplugged. I bet the zsus they sent isn't good.

[Hamie]

Re: Lg 42pc3d weird picture.

Well if the fuse was blown on the new z-sus then it was blown for a reason.

[Hamie]

Re: Lg 42pc3d weird picture.

Very rarely will replacing a fuse in a TV fix it.
Occasionally you may get lucky with pico fuses.

[Malachi]

Re: Lg 42pc3d weird picture.

I got the tv from a guy that sent the zsus board to coppell to have it repaired. They replaced a fuse and an Ipm. When he got it back the tv still didn't work. So he replaced the logic board and y buffer.
I suspected that either he didn't screw all the screws in or coppell didn't repair it correctly so I ordered what was supposed to be a working board.

[ReeceyBurger123]

Re: Lg 42pc3d weird picture.

Looks like Zsus Ipm to me, I done the same set same issue replacing Ipm solved it.

[Malachi]

Re: Lg 42pc3d weird picture.

Well if the fuse was blown on the new z-sus then it was blown for a reason.

I agree but the seller on eBay sold the board as working. That's why I didn't check the fuses on it when I got it.

[Malachi]

Re: Lg 42pc3d weird picture.

That's what I thought reecey even though I was told coppeltv does good work I still supected the zsus.

[Alastair E]

Re: Lg 42pc3d weird picture.

Z-SUS IPM is short-circuit (blowing the fuse initially) and needs replacement,--Not the control-board.
New fuse doesn't blow because the PSU sees the short and shuts down

You need YPPD-J018A-C IPM

[Malachi]

Re: Lg 42pc3d weird picture.

Ok, I've contacted the seller on eBay about an exchange. I felt all along it was the zsus, just never expected to get a faulty one when it was listed as working.

Doesn't explain why the repaired one from a reputable company in the USA doesn't work. Life's mysteries I guess.

[Alastair E]

Re: Lg 42pc3d weird picture.

May well have been repaired--But, NO NEW IPM's exist--LG Never sold 'em separately!

ALL the IPM's Everywhere are recovered from used boards....

Your 'new' IPM could well have 20,000 hours on it--and be on its last legs due to Black-Pad Syndrome....

[Malachi]

Re: Lg 42pc3d weird picture.

Thanks Alastair. I didn't know that. I'll keep that in mind when coming across these lg's from now on.

[Alastair E]

Re: Lg 42pc3d weird picture.

Better to try and repair the existing IPM.

Ive used FGPF4633 to repair the 42" IPM's providing the driver and transistor pair survived the short, and currently potching with the 50" ERC IPM with partial success....

[Malachi]

Re: Lg 42pc3d weird picture.

Unfortunately I don't do any repairs like that. I keep to resistors, capacitors and othe easy stuff.

[ReeceyBurger123]

Re: Lg 42pc3d weird picture.

Unfortunately I don't do any repairs like that. I keep to resistors, capacitors and othe easy stuff.

Push your self try more do more !

[Malachi]

Re: Lg 42pc3d weird picture.

I don't understand most of what you guys talk about. I'm not smart enough to read schematics.
I don't even understand what Alastairs last post means.

[martino]

Re: Lg 42pc3d weird picture.

I don't understand most of what you guys talk about. I'm not smart enough to read schematics.
I don't even understand what Alastairs last post means.

You're as smart as the next guy. Once they didn't know how to either.You learn and keep learning. With trying and failing you learn and gain knowledge.