Last week a thin red horizontal line appeared on the lower part of the screen. Its there even with no input devices on. The set is 2 1/2 years old.
Any ideas?
Thanks!!
Any ideas?
Thanks!!
Attached Files
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Re: Panasonic TCP42S2 horizontal line
I'm going to say bad Y-buffer board or on this SU/SD or possibly SN board.Please do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search. -
Re: Panasonic TCP42S2 horizontal line
That's very digital and in blocks in appearance.
If me, first thing I'd try if you have a copy of the service manual is the vertical flip in the service menu and see if those coloured blocks go to the top of the screen.Attached FilesLast edited by tw2005; 08-07-2013, 02:41 AM.Comment
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Re: Panasonic TCP42S2 horizontal line
Thanks Tom and tw2005. I tried a new buffer which didn't help. The line moved with the picture in the mirror test so it looks like I need an A-board. I'll start looking.
Thanks again for your expertise!Comment
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Re: Panasonic TCP42S2 horizontal line
Yeah for me it was a symmetrical pattern as opposed to a continous line. If your into experimenting I wonder if it's being generated or possibly a faulty A board buffer ICs ?
TNPH0831 (version, no suffix) , TXN/A1LHUUS if SJ is correct. P42S2
IC9400,9401,9402 (underside) . TC74VHCT541AF (Texas Inst equivalent SN74AHCT541NSR) should only be about $1 ea,
Maybe you have some scrap boards with the same part fitted, they're not too hard to work with size wise.Last edited by tw2005; 08-08-2013, 08:52 PM.Comment
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Hi guys
I just started fixing 4k TV few months ago. so I am still learning a lot
I got this tv from friend complaint is ghosting or horizontal lines on image.
never saw the original symptom but I took the tv back home. the funny part is that after bringing to home, the tv worked fine no issue for 3 weeks.
then it started to show the ghosting white image.
I started using the tape method, but this tv does not have a T con board and it has only 1 ribbon cable from main board to the tv panel.
it has 3 thin small boards at the bottom of the... -
Hi to all,
I was given this TV, an entry-level 4K 50" set. Some have criticized its lack of contrast and relatively poor colour rendering, but for my needs, it's very decent.
I reset everything to factory settings, but this line keeps on fading in and out when watching a streaming channel from the Tizen firmware. Interestingly, it only happens when TV is warm, after about 1h45 of it being turned on.
Watching a movie from an external source doesn't trigger the line as easily (needs 2 hours), and from a normal viewing distance, is hardly noticeable. It...01-10-2024, 01:26 AM -
Hi guys I have this tv and in one side of the pannel it shows some line i also cleaned the camble notting, although I found an smd capacitor on the pcb (there's no tcon on this model) but I can't find the same model thanks02-20-2025, 02:52 AM -
Hi guys I have this tv and in one side of the pannel it shows some line i also cleaned the camble notting, although I found an smd capacitor on the pcb (there's no tcon on this model) but I can't find the same model thanks02-20-2025, 02:45 AM
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Hello,
Here I have the mentioned tablet with motherboard s6000-mb-h401. The tablet won't turn on, no display, charging normally. I manage to connect to UART port and got this output when I try to start it:
...Code:[PWRAP] pwrap_init_preloader [PWRAP] pwrap_init [PWRAP] _pwrap_init_sidly [Read Test] pass,SIDLY=0 rdata=5AA5 [PWRAP] _pwrap_init_sidly [Read Test] pass,SIDLY=1 rdata=5AA5 [PWRAP] _pwrap_init_sidly [Read Test] pass,SIDLY=2 rdata=5AA5 [PWRAP] _pwrap_init_sidly [Read Test] pass,SIDLY=3 rdata=5AA5 [PMIC_WRAP]wrap_init pass,the return
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