Lg 50pc56

[anotherdude]

My Tv is having a few issues had it a few years now never had a problem.

The tv powers on seems to work fine etc but theres what i call noise/distortion like little white/green/multicoloured dots mainly show on blacks and theres also a thin red/blue line running down the middle of the screen

The line doesn't really bother me but the noise/distortion on black/dark scenes is starting to annoy me

any ideas on what the problem is?

took a video best i could to show this, i have the back off already and it seems the roller fan has died too

http://www.youtube.com/watch?v=57oJM7HlZu0

[tom66]

Re: Lg 50pc56

Very common issue.

Line is a bad plasma panel, probably.

The noise is known as "sparklies effect" or "maldischarge". It can be rectified only by re-programming the control board firmware, which must be done with a jig, approx £120 to buy from LG. Several members on this forum offer reprogramming services for a small fee.

[anotherdude]

Re: Lg 50pc56

Very common issue.

Line is a bad plasma panel, probably.

The noise is known as "sparklies effect" or "maldischarge". It can be rectified only by re-programming the control board firmware, which must be done with a jig, approx £120 to buy from LG. Several members on this forum offer reprogramming services for a small fee.

care to point me in the right direction?

take it i need to remove the control board and send it away to whoever?

[tom66]

Re: Lg 50pc56

Yep, board needs to go off to a member here. Can't remember off my head who does this but if you do some searching you'll find a few offering the service.

[anotherdude]

Re: Lg 50pc56

Yep, board needs to go off to a member here. Can't remember off my head who does this but if you do some searching you'll find a few offering the service.

postage each way at £6-10 then whatever they charge

cheaper to get a new board or?

[tom66]

Re: Lg 50pc56

New board doesn't usually come with the upgraded firmware.

The plasma panel begins ageing causing the sparklies, and the firmware fixes the problem.

[anotherdude]

Re: Lg 50pc56

anyone able to point me to someone in the UK that can fix the firmware on the board, searched but found nothing

[tom66]

Re: Lg 50pc56

I have a feeling user "muskin" may do this, I think he is the person I sent my board off to last time.

[anotherdude]

Re: Lg 50pc56

he's not been on since december and in Hudson NC, sending a board to the US is just going to be costly

thanks anyway

[anotherdude]

Re: Lg 50pc56

tom, found the lg jig for £50

just need to know where to find the firmware now really any ideas?

[tom66]

Re: Lg 50pc56

Here:
http://www.tgohome.com/ServiceManual...&Search=Submit

[vinceroger69]

Re: Lg 50pc56

the lg jigs seem cheap now is the firmware free though?
http://www.ebay.co.uk/itm/LG-JIG-/26...item3ccee342bc
or build your own?
http://openlgtv.org.ru/forum/viewtopic.php?f=5&t=770

[anotherdude]

Re: Lg 50pc56

seems that a no go still gonna cost me £70+

apparently you need a rs232-c cable or am i reading it wrong

[anotherdude]

Re: Lg 50pc56

don't know whether to just bare with it, adjusted the POT on the back and it's cleared it up a fair bit

[satinser]

Re: Lg 50pc56

Got the same problem as you had in your last post you stated you adjusted the pot on on the back and it cleared up the problem but not completely. Take it you were referring to VS pot on PSU board. Appreciate sometime has now passed. Have any issues developed after decreasing the VS voltage?