50" Plama vertical lines - repairable??

[tom66]

Re: 50" Plama vertical lines - repairable??

The panel in this set is made by Panasonic.

It could be a digital/control board fault or a main board fault. I am looking at how the glitch changes around the channel/input name in the corner, so I'd suggest the main board could actually be at fault.

Quite hard to tell on a Panasonic based panel as the OEM'd sets don't have test patterns built in.

[mmartell]

Re: 50" Plama vertical lines - repairable??

Hmm looks like you have a Panasonic set with this board or a variation of it:

http://www.shopjimmy.com/panasonic-t...es-d-board.htm

$71. Do you have a digital multimeter to check some basic voltages ?

[Stevie B]

Re: 50" Plama vertical lines - repairable??

Are you referring to the small board behind the main board?
Is that the control board?
I didn't catch that tom66 had referred to it.

Its Maxent MX5020-HPM.

So you're saying the hidden board is the suspect?

[Stevie B]

Re: 50" Plama vertical lines - repairable??

Is the link that mmartell posted the main or the control board?
Is it a good idea to just verify the part number and replace it?

[Stevie B]

Re: 50" Plama vertical lines - repairable??

I have a fluke for any voltage measurements.
But I need to get info, I don't have any video electronic experience.

[freakaftr8]

Re: 50" Plama vertical lines - repairable??

Freeze spray the 3 16v 220 mfd capacitors to the left of the main processor on the mainboard. See if problem gets better or worse. Then try a lil heat too. Seen this multiple times on this model. Yes it uses panasonic guts. They put out a decent picture

[mmartell]

Re: 50" Plama vertical lines - repairable??

Ya sorry, I was suspecting control board, that's the one hidden beneath the main board but tom and freak are much more experts in these matters so definitely follow their recommendations.

[Stevie B]

Re: 50" Plama vertical lines - repairable??

The main board is out of stock at shop jimmy.
The part number is the same except for the suffix. On mine it is ---, the replacement is -1-.
I assume its just a newer version of the same part.
In the meantime, I'll pick up some freeze spray.
What is a good way to apply heat? A hair dryer?

[tom66]

Re: 50" Plama vertical lines - repairable??

Hairdryer works well for the heat.

[ademim]

Re: 50" Plama vertical lines - repairable??

The last board you uncovered is the digital board and the one tom66 is referring to. I would heed his advice and replace it. I had a similar "interference" problem in a Pioneer plasma which he suggested I replace and it was the problem.

Who makes this tv ? You need to get the part number from the control board.

it looks like its a panasonic(look at the chip on the board)...

[ademim]

Re: 50" Plama vertical lines - repairable??

hi i also have a very bad problem which i think is the panel itself as you can see in the videos ,its a samsung ps50a451p1 50" plasma.
i hope im not doing something wrong by posting my problem here but due to the title i thought it would be a good place.

http://youtu.be/omRKU3-Xqkg
http://youtu.be/ayNn7tij5Qo

[mmartell]

Re: 50" Plama vertical lines - repairable??

it looks like its a panasonic(look at the chip on the board)...

You can see in post #22 where I figured that out about seven minutes after the post you quoted but thanks for the heads up.

And start your own thread since it's a different make/model.

[Alastair E]

Re: 50" Plama vertical lines - repairable??

it looks like its a panasonic(look at the chip on the board)...

Doesn't mean a thing!--Set makers will use whatever is available and has the features they want.

Set I have at the moment has at least two visible Sony chips on its mainboard--yet, the name on the front is--

Panasonic.

[tom66]

Re: 50" Plama vertical lines - repairable??

hi i also have a very bad problem which i think is the panel itself as you can see in the videos ,its a samsung ps50a451p1 50" plasma.
i hope im not doing something wrong by posting my problem here but due to the title i thought it would be a good place.

http://youtu.be/omRKU3-Xqkg
http://youtu.be/ayNn7tij5Qo

Definitely panel. Your unplugging / plugging in of the Va connector may well have contributed to the demise of the panel. These panels are very sensitive to this.

[ademim]

Re: 50" Plama vertical lines - repairable??

Doesn't mean a thing!--Set makers will use whatever is available and has the features they want.

Set I have at the moment has at least two visible Sony chips on its mainboard--yet, the name on the front is--

Panasonic.

hi again and sorry for butting in with my problem on thius thread i will start my own ,and i know what you are talking about when makers use other brand materials for making lets say a logic board or in cell phones.

[Stevie B]

Re: 50" Plama vertical lines - repairable??

So then regarding my issue with trying to get a main board replacement.
At shop jimmy and other sites, when I search for QPWB11578Y1G I get results for YPWB or DPWB instead.
Is this the same thing or do I need to get QPWB specifically?

[nomoresonys]

Re: 50" Plama vertical lines - repairable??

is that your model number?, if not try putting your model number in the shopjimmy search if thats where your searching at.

[nomoresonys]

Re: 50" Plama vertical lines - repairable??

if its there, it should say what panel numbers it will work with, in the description.

[freakaftr8]

Re: 50" Plama vertical lines - repairable??

I may have this board. Give me a bit to look at it when I get home.

[freakaftr8]

Re: 50" Plama vertical lines - repairable??

But did you first try the hairdryer method on those electrolytic capacitors on the left of the processor on the mainboard yet?