panasonic TX-P42X20B flashing red

[craig417]

Re: panasonic TX-P42X20B flashing red

That could be possible. Did think that doing a data change would change the adjustment data and the factory preset data to that of a 42".
The board I knew about on Ebay is gone now as well . I am not having the best of times with this set.
Might have to investigate the board and see what is possible to change between the working 37" board and the faulty 42" board.

[tom66]

Re: panasonic TX-P42X20B flashing red

It may be that the board is hardcoded and it's not practical to change it -- might even be buried in the exact software used.

[craig417]

Re: panasonic TX-P42X20B flashing red

Well things are not good for me.
Tried the data posted by Karl but with total sadness it has not worked.
Run a self test as per manual and said it was still 37hd. Went through the service menu and changed panel type to 42hd but it showed NG under it.
Ran the self check again and it failed, switched off and on again and it resets itself back to 37hd
Some of the settings in adjustment mode are different from that in manual but never went as far as changing them at this time. Not sure the difference it would make if any. Do not think it would change the pixel lines that it shows.
Begining to think its time I bite the bullet and get another board from a 42".

Thank you again Karl for posting the data.

[tom66]

Re: panasonic TX-P42X20B flashing red

I've seriously considered picking up some of those. See quite a few around here and would make a nice cinema TV. Also, they're tweakable. The out-of-the-box black level is poor, but by adjusting setup/setdn you can typically get Panasonic plasma black levels.

[craig417]

Re: panasonic TX-P42X20B flashing red

Ebay can be ok for some TV's I have found. Best one's I have been able to get are LG50PS3000 with the red haze on them, usually picking them up for £80-£120. Quite an easy repair and only costing about £20. Sold a few on for £200-£250.

[craig417]

Re: panasonic TX-P42X20B flashing red

Thanks for that Karl. Will give it a go when I get home tonight.

[karlpowell]

Re: panasonic TX-P42X20B flashing red

hope it works out for him

[tw2005]

Re: panasonic TX-P42X20B flashing red

here you go , as per service manual password = 2770

I think what you mean is 2770 copy from TV to SD

2771 Copy from SD to TV which is what he'll be doing I expect.

[tom66]

Re: panasonic TX-P42X20B flashing red

Don't waste your time. Ebay does nothing. I've tried many a time to report people bidding up an item, it sells and then mysteriously gets relisted time and time again. I've seen the same TV listed 6 times.

Generally it's been pretty good for me otherwise.

I've bought a few good deals on there before. I picked up a nice 32" Sharp LCD for £25, and a 37" Philips plasma (1024x1024 ALiS) for £25 too. I generally only go for "buy it now" -- too much bidding otherwise -- though I did get the 46" Panny for £71 (bargain!) on a bidding auction.

I think I can filter out certain sellers from my searches, need to see how.

[karlpowell]

Re: panasonic TX-P42X20B flashing red

here you go , as per service manual password = 2770

[tw2005]

Re: panasonic TX-P42X20B flashing red

Another thing that I keep seeing is one month old plasma TVs with cracked screens on eBay for £250 "just needs a new screen". And some seller keeps advertising each of his cracked screen lots as "faulty" so they get caught in my eBay searches -- need to find a way to remove him.

Don't waste your time. Ebay does nothing. I've tried many a time to report people bidding up an item, it sells and then mysteriously gets relisted time and time again. I've seen the same TV listed 6 times.

Generally it's been pretty good for me otherwise.

[tom66]

Re: panasonic TX-P42X20B flashing red

Another thing that I keep seeing is one month old plasma TVs with cracked screens on eBay for £250 "just needs a new screen". And some seller keeps advertising each of his cracked screen lots as "faulty" so they get caught in my eBay searches -- need to find a way to remove him.

[tw2005]

Re: panasonic TX-P42X20B flashing red

Just a thought there tw2005, if you copied the data from your 50, could you post it on here and I could give it a try out of curiosity and see what happens. Should have asked you this earlier, doh. I have a copy of mine as it is so no problem going back the way if I had to. Or I know where I can get another board at the moment if I really had to go that way. But the guy got the whole TV for £35 with cracked screen and possibly a courier cost but now wants £40+£5 postage for each of the boards he took out of it, and on his listing he has it stated as working board taken from a NEW TV with a cracked screen. But the guy that sold the TV had been asked by a friend to skip it for him, so it's not from a new TV as per his listing.

I won't bother now that someone is going to get a correct copy to you. even if you tried I think from memory it would be rejected as an invalid file for your board. When I did a data copy from my Au board to NZ I do recall some trickery in having to keep the model id.info file intact and adding the others so they would load.

[tw2005]

Re: panasonic TX-P42X20B flashing red

I've come to realise everyone selling cracked screen parts on eBay lies about testing them. :/ I've received a few dud boards that after a short argument I've got a refund and lo-and-behold a new board fixes the problem. Frustrating though.

I'd guess that a 50" panel would be worse. It has 1366 columns (as opposed to 1024 rows on both 42" and 37") so enabling that may cause loss of HSYNC = scrambled picture.

Lies, lies everywhere Tom. I think you and I have established that fact both Ebay and Stri & ship businesses. SJ is about the only one I feel is testing as much as possible and from the majority of parts they do appear to have come from brand new damaged in transit TVs. Some of the older Tvs maybe not.

The NZ A board I have which I inherited was an EBAY advertised as essentially new from damaged in transit screen. A lie- go into the service menu and it had in fact clocked 3000hrs.
Either the seller does not know it's logged or assumes the vast majority of buyers would not know how to find this information.

Some of these newer TVs with cracked screens on Ebay it would not surprise me some creative people intentionally crack the screen to claim insurance when they find out how expensive the repair is going to be.

[karlpowell]

Re: panasonic TX-P42X20B flashing red

Craig please PM me your email and ill get the file to you today .

[tom66]

Re: panasonic TX-P42X20B flashing red

I've come to realise everyone selling cracked screen parts on eBay lies about testing them. :/ I've received a few dud boards that after a short argument I've got a refund and lo-and-behold a new board fixes the problem. Frustrating though.

I'd guess that a 50" panel would be worse. It has 1366 columns (as opposed to 1024 rows on both 42" and 37") so enabling that may cause loss of HSYNC = scrambled picture.

[craig417]

Re: panasonic TX-P42X20B flashing red

Just a thought there tw2005, if you copied the data from your 50, could you post it on here and I could give it a try out of curiosity and see what happens. Should have asked you this earlier, doh. I have a copy of mine as it is so no problem going back the way if I had to. Or I know where I can get another board at the moment if I really had to go that way. But the guy got the whole TV for £35 with cracked screen and possibly a courier cost but now wants £40+£5 postage for each of the boards he took out of it, and on his listing he has it stated as working board taken from a NEW TV with a cracked screen. But the guy that sold the TV had been asked by a friend to skip it for him, so it's not from a new TV as per his listing.

[tw2005]

Re: panasonic TX-P42X20B flashing red

That sucks, an option that's not an option. it'll be interesting to see if a data copy works then.

[craig417]

Re: panasonic TX-P42X20B flashing red

Sure I tried that but did not stay as 42 when switched back on. Was a little while ago now trying to mind from memory. Not able to try it again just now. Even tried changing all the settings possible to what was shown in service manual but think it may be an unchangeable setting in eprom or something as to amount of pixel lines it shows on the screen (37" 720 lines 42" 768 lines). Then it just copies the top 48 lines on the bottom of the picture.

[tw2005]

Re: panasonic TX-P42X20B flashing red

My boards from a 37" and I've been on that bit and mine said 42NG and tried selecting it but just goes back to 37"display on switching on again. Dnt know if there was anything else needing done for it to stay that way. Been through all ye service manual and says to check other things if NG displayed. Hope to get data from board if someone could copy it to SD card and post it on here so i can try it to fix mine.

Out of curiosity, when you toggled to the 42, it was red. Did you hit ok, it changes to black and then restart the tv? I'm not brave enough to fool around testing mine and changing to 50 just in case I lose the picture or the menu goes off screen otherwise I'd have a go.