A guide to fixing/troubleshooting some common plasma TV problems

[Merbesfield]

Re: A guide to fixing/troubleshooting some common plasma TV problems

Taking it apart is simply a matter of removing the stand, finding a safe place to prop it, undoing the screws (bag them up!) and then posting pictures. From there we can guide you to exact location of the control board.

Will do. Thx for help.

[tom66]

Re: A guide to fixing/troubleshooting some common plasma TV problems

Taking it apart is simply a matter of removing the stand, finding a safe place to prop it, undoing the screws (bag them up!) and then posting pictures. From there we can guide you to exact location of the control board.

[Merbesfield]

Re: A guide to fixing/troubleshooting some common plasma TV problems

Usually only one. To be sure, you need to disassemble the set and check the part # as you should always order by part # not model #. For example if you were ordering a part for a car would you go by the model & year only or the part # directly?

Ok, so next question for a newb. How and where do I find info on how to take apart this specific TV and then know which part I am trying to rip out without screwing up other parts?

[tom66]

Re: A guide to fixing/troubleshooting some common plasma TV problems

Usually only one. To be sure, you need to disassemble the set and check the part # as you should always order by part # not model #. For example if you were ordering a part for a car would you go by the model & year only or the part # directly?

[Merbesfield]

Re: A guide to fixing/troubleshooting some common plasma TV problems

If it's out of stock you have to buy from elsewhere.

Am I asking for the right part? Is there only one CTRL board per TV? Remember, I am clueless about this stuff.

[tom66]

Re: A guide to fixing/troubleshooting some common plasma TV problems

If it's out of stock you have to buy from elsewhere.

[Merbesfield]

Re: A guide to fixing/troubleshooting some common plasma TV problems

How about this? LG 6871QCH038C Main Logic CTRL board. Says out of stock.

http://www.shopjimmy.com/lg-6871qch0...ctrl-board.htm

[Merbesfield]

Re: A guide to fixing/troubleshooting some common plasma TV problems

Shopjimmy? How do I determine the part no? The site I visited were not to helpful in leading me to a CTRL board for my TV model, which I provided. Is there a parts schematic somewhere?

Ok found Shopjimmy.com. Just need part no. Thx

[tom66]

Re: A guide to fixing/troubleshooting some common plasma TV problems

Hi Tom and all, can you point me to what part no. and where I can buy the CTRL board for my LG RU42PZ61? Looks like the prices are reasonable so I might as well have a go at it. Thanks for the assistance, Mark

Anywhere that offers a return policy and has good feedback/reviews. Shopjimmy are good, apparently.

[Merbesfield]

Re: A guide to fixing/troubleshooting some common plasma TV problems

Hi Tom and all, can you point me to what part no. and where I can buy the CTRL board for my LG RU42PZ61? Looks like the prices are reasonable so I might as well have a go at it. Thanks for the assistance, Mark

[tom66]

Re: A guide to fixing/troubleshooting some common plasma TV problems

Yeah, I'm still in Leeds.
I've not yet tackled a new-ish LG plasma but the guide applies to most plasmas even those made today.
If you get frustrated, I wouldn't mind having a poke around.

[kenji]

Re: A guide to fixing/troubleshooting some common plasma TV problems

Hi Tom,
You still at Leeds? If so, just registered on here and seen you're just down the road from me at York!
I'm going to try and fix an LG 50PZ550 plasma for a friend that has sound but no picture. I've fixed a couple of LG 50PK350's recently that were just blown power supply (resistor) problems, but they were dead on standby (not switching). This one's a bit different and reading your posts I'd guess it could be a Y-sus problem on the 50PZ550.

Have you any experience of this set and symptoms to say what it could be before I start?

[Merbesfield]

Re: A guide to fixing/troubleshooting some common plasma TV problems

Brand is LG. Model no. RU42PZ61

Any news on the board? Thanks

[Merbesfield]

Re: A guide to fixing/troubleshooting some common plasma TV problems

The CTRL can be economically replaced if you can find the board. What is the model # of the TV?

The panel itself cannot be economically replaced.

Guess customer service lies to stop you from returning it. If I were you, I would not buy from that supplier again.

Brand is LG. Model no. RU42PZ61

[tom66]

Re: A guide to fixing/troubleshooting some common plasma TV problems

The CTRL can be economically replaced if you can find the board. What is the model # of the TV?

The panel itself cannot be economically replaced.

Guess customer service lies to stop you from returning it. If I were you, I would not buy from that supplier again.

[Merbesfield]

Re: A guide to fixing/troubleshooting some common plasma TV problems

Those are not "typical plasma leftovers", you have a sparklies problem... bane of older LGs... No working plasma has those.

The lines are probably a digital / CTRL board fault, which would be a replacement only board.

Interesting, those "sparklies" have been there since day one, always the same. I vaguely remember calling and being told it was normal. Oh well, little late for that. The lines on the left also change from just the thin lines to a solid screen filled with colored stripes, not just the thin stripes you see here, but always on the left. Is the panel a part that I can replace? If so, where would I find it? Thanks again.

[tom66]

Re: A guide to fixing/troubleshooting some common plasma TV problems

Those are not "typical plasma leftovers", you have a sparklies problem... bane of older LGs... No working plasma has those.

The lines are probably a digital / CTRL board fault, which would be a replacement only board.

[Merbesfield]

Re: LG Plasma left half of screen is solid color vertical lines

First post here, unfortunately that means I am having Plasma problems.

I have an older LG 43" Plasma. Sorry don't have the number in front of me. Problem occurred today, left half of screen is solid colored bars running vertical. They did go out for a 15 minutes, but then returned in a different group of colors. Any help would be greatly appreciated. This TV is probably 7-8 years old and was expensive at the time. It does not have HDMI outs, so this might help date it. They started adding them shortly after I bought the TV.

Here is some more info. Please someone help me find a solution to my problem. I really don't want to have to but a new TV at this time. Here is a pic of the screen showing the lines on left side. The model no. is RU42PZ61 and it was mftred in 2004. Is that what I should expect out of a Plasma? Thanks again.


Edit, the pic only shows the strips, but the right side works 100%, the ghosting seen in the pic is just the typical plasma leftover images.

[todthebod]

Re: A guide to fixing/troubleshooting some common plasma TV problems

Anybody have a common list of caps or other parts that they've needed to fix tvs. I get about 2 a week and most of the time I have the ones I need like 10v3300uf is a common one or 10v1000uf. Every once in a while I'll get a 2700uf or an 830uf. I'm about to place an order with Mouser and I want to order and have in stock whatever I may need on normal tvs. ANyone have a list of common caps so I can order them all at once?


Thanks.


Todd

[Merbesfield]

LG Plasma left half of screen is solid color vertical lines

First post here, unfortunately that means I am having Plasma problems.

I have an older LG 43" Plasma. Sorry don't have the number in front of me. Problem occurred today, left half of screen is solid colored bars running vertical. They did go out for a 15 minutes, but then returned in a different group of colors. Any help would be greatly appreciated. This TV is probably 7-8 years old and was expensive at the time. It does not have HDMI outs, so this might help date it. They started adding them shortly after I bought the TV.