My brother has a Plasma TV that has developed vertical lines over time (started with one and is increasing). The are always present from start up and remain.
They are coloured and dither slightly at different points.
I've attached a reasonable close up to show what it looks like.
Is this an easy fix (loose connections) or is it more likely a PCB needs a repair or panel on it's way out?
Many thanks,
Rob...
Robin-H
New Member
Last Activity: 10-25-2016, 04:38 AM
Joined: 05-05-2016
Location: West Midlands
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Samsung Plasma with vertical lines
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Hi John,
I've metered out the SN board and I get 0.05ohms on the SN2 socket, so I'm guessing it's definitely the SN board that's faulty?
If it is, do you still have one on ebay at the moment?
Many thanks,
Robin -
Yep I have a meter. I'll give that a go on Monday and let you know what I find.
Thanks very much for the infro -
Hi Flocko,
I finally got the back off today and removed the SN2 connector. When I do, I finally get a proper red led fault light sequence of 6 flashes. Previously, I got 6 rapid flashes of the green power light and then nothing.
The service manual says to check for power LED on the PCB's but to be honest, I can't see one on the SN board or the SS board (unless the SS one his hidden under the outputs daughter board.
The PN on my SN board is TNPA5349 (AB). I haven't got time to test the any components on the board until the morning if the above isn't confirmation... -
Re: Panasonic TX-P42U30B Service Manual
Just another quick question.
If I'm close to the TV (within 1-2 feet), you can see an active sparkling going on, most notably on black or dark backgrounds. When sitting at a normal viewing position, I don't see this effect. I've only noticed it so far when using my computer, but I think it's there on Sky TV too.
Is this normal with plasmas as I don't get the same on an LCD. Or is it a fault or something that can be adjusted via the Service Manual. -
Re: Panasonic TX-P42U30B Service Manual
Ah, I didn't realise that.
I'll see if I can turn it off and see if the behaviour stops and coincides with that intentional feature being disabled.
Thanks very much.Leave a comment:
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Re: Panasonic TX-P42U30B Service Manual
I'm still debating the addition of a fan, but may well add one once I've confirmed it is my SN board that is faulty and got a replacement in.
One thing I have noticed with my TX-P42U30B. Ever since I've had it, when in standby, periodically the relays will do a few clicks. Nothing ever flashes or comes on on the panel, the red standby light remains on and steady.
Anyone else witnesseed the same behaviour and is it normal?Leave a comment:
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Re: Panasonic TX-P42U30B Service Manual
Perfect, thanks for that KilroysLeave a comment:
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Perfect, thanks for getting back to me so quickly.
I have a bit of a busy weekend, so I plan on opening it up next week and just double checking the PN on the board and checking it is the SN board that is faulty.
At present, I get 6x rapid blinks of the green LED, then nothing and no picture.
If it is the SN and I get it back up and running (I hope so, cause I had the pictures on LED TV's), I'm going to pop a small fan in as I read one of the other members did to hopefully prolong the life a little. -
Hi Andy,
I was wondering if you can remember who in N. Ireland you sent your SN board to for repair for your Panasonic Plasma.
Many thanks,
Rob -
Hi Flocko.
Do you still offer the SN boards on ebay for Panny plasmas and a refund on returned faulty boards?
I was wondering if you have one for the TX-P42U30B. Having read the forums I don't want to attempt the repair myself.
Alternatively, if you don't have a replacement, do you offer a repair service on faulty boards?
I need to open it up and check the TN part number of the board first.
Many thanks,
Robin -
Re: Panasonic TX-P42U30B Service Manual
I know this post is a tad old, but was wondering Andy, if you can remember who was able to repair the PCB in N.Ireland.
I have a TX-P42U30B with 6x rapid flashes of the green LED, then nothing after that. I believe it could be the SN board.
Is that what you had repaired in the end Andy?
Many thanks,
RobLeave a comment:
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