LG 50PG3000-ZA help needed please.

[uncoder]

Re: LG 50PG3000-ZA help needed please.

Have you had a chance to look at my pics? What do you think?

[freakaftr8]

Re: LG 50PG3000-ZA help needed please.

Your mainboard eeprom or something the thereabouts has gone corrupt. Replace mainboard if you cannot update firmware.

[freakaftr8]

Re: LG 50PG3000-ZA help needed please.

On the service menu I see white pattern ebabled to white. That explains the inverse colors. Can you operate the tv via buttons on the panel?

[uncoder]

Re: LG 50PG3000-ZA help needed please.

No I cannot operate the tv at all with the exception of using the tv/remote push and hold method to get to the menus shown in my previous post.

[uncoder]

Re: LG 50PG3000-ZA help needed please.

Is there a way to update/refresh the eeprom? I tried making a serial cable but I cannot get to any menus to initiate com link...

[uncoder]

Re: LG 50PG3000-ZA help needed please.

Bump... ???

[uncoder]

Re: LG 50PG3000-ZA help needed please.

If I get a new ctrl board should I use the eax or ebr part number?

[vinceroger69]

Re: LG 50PG3000-ZA help needed please.

eax as tom says

[tom66]

Re: LG 50PG3000-ZA help needed please.

EBR: Bare PCB
EAX: Full Assembly
(I think...)
I would use EAX over EBR, but as long as part is from same model, you should have no issues.

[uncoder]

Re: LG 50PG3000-ZA help needed please.

tom66.... Did you mean this board?

[tom66]

Re: LG 50PG3000-ZA help needed please.

That's the main board. Control board is next to it, connected by a cable.

[uncoder]

Re: LG 50PG3000-ZA help needed please.

So the pics in post #57 were the correct ones?

[tom66]

Re: LG 50PG3000-ZA help needed please.

That is control board.
The LED indicators are an indication of plasma panel temperature in binary. The control board adjusts the drive waveforms as the panel heats and cools, as the gas inside the panel is highly temperature sensitive.

[uncoder]

Re: LG 50PG3000-ZA help needed please.

Do you think a firmware push will work? Do you know where I can get it if so?

[jampot1027]

Re: LG 50PG3000-ZA help needed please.

I have the same problem with my 50pg3000
I have removed the top buffer, which has made the bottom half of the screen come back on but it is crazy coloured lines all over the place . The tv has sound. Fuses are good and the ysus and bottom buffee heat sinks get warm when on. Will a top buffer fix this??

[scootmansfield]

Re: LG 50PG3000-ZA help needed please.

Hello newbie here

[Techie_Alison]

Re: LG 50PG3000-ZA help needed please.

Hi there.

sorry to dig up an older post but it fits my fault perfectly and it seemed logical to use this thread. (plus i'm a newbie and not too sure about things).

My LG 50PG3000 ZA tv has suddenly died. I have sound but no picture

I have exactly the same detection results as the OP to this thread;

1. I have taken off the back cover and located all the boards
2. Power up shows green power light on both front panel and rear control board.
3. Fuse ok on PCB and heat syncs are all warm after 30 mins.
4. Fuse ok on ZSUS and heat syncs are all warm after 30 mins.
5. Fuse ok on YSUS but heat syncs are cold after 30 mins.
6. The fuses I have checked are the obvious ones that look like glass fuses.
7. No bulging caps etc (well that I can see anyway)
8. The outputs of the Va & Vs are as follows... Va: 58.3v Vs:184.8v (only slight variation to these values)

I have tried all of the recommended procedures listed through the thread but no change to the screen output.

I have a green led lit on the controller board and sound is working fine

can anyone advise what else i can try. Many thanks