Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
Got any updates on this one? Just did 2 4782 boards for the G10 series which was interesting
Got any updates on this one? Just did 2 4782 boards for the G10 series which was interesting
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
I was working on it yesterday actually. The last of the parts came in a week ago. Remind me never to order anything from again just before the Chinese new year. Replaced all the parts in my list, got some colorful flashes on the screen for a few seconds, then it went dead again. None of the MOSFETs blew, but I think maybe the driver ICs failed again.------------signature starts here------------
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
Oh, and I've done the same re: Chinese new year. yes a lot of interest can be lost waiting.
I found that some different parts subbed work too like M81737FP will be ok for the 707Comment
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
I never thought to check the blink code. I'll try it again tomorrow. I know I must be close.------------signature starts here------------
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
ok, another night of boredom for me then
I would stick to the SC50 jumper, disconnect buffers , remove their Vfg bolts (4)and not use the buffers for testing for the time being. I killed my SD/SU set doing something wrong I guess on the G15Comment
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
I didn't have those vfg bolts in when I tested. Could that have been the problem?------------signature starts here------------
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
yes, no Vfg bolts and TV will shutdown 7 blinks. made that error rushing putting a 5081 in my TV. Probably very risky running any board unearthed.
that earth point is floating ground, not chassis, needs to be earthed with respect to those on the SC board
Do the Sc50 procedure and if it stays on, Sc has passed. We've been checking the MID volatge which was Tom's tip to sort our boards out as all the other voltages checked out. generally 50% of VsusLast edited by tw2005; 04-17-2015, 02:09 AM.Comment
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
What's the SC50 procedure?------------signature starts here------------
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
Leave those 4 bolts off the SD/Su that mount to thos posts on the Sc, Disconnect all connectors (3) to the buffer board.
small white connector with 2 pins marked Sc50, short those pins together.
have everything else as normal, I trust the Sc is fully mounted and bolted , turn TV on and if it completes it's start up as normal no error blinks / shutdown then that's a SC pass.
only do it long enough to confirm, leave it running too long and set will shutdown with 4 blink and the guides say no longer than 30 secs.
You'll need to let the Sc fully discharge otherwise there will be arcing as you hook up the buffers.Comment
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
actually hang on a minute, I can't see sc50 on the 4844, ay need alligator leads to do it a different way.Comment
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
yep, it's there right next to the large white ceramic resistorComment
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
I learned about that arc a while ago on a different Panasonic. I think I almost jumped through the ceiling. As loud as it was, I was surprised it didn't blow the pins off the board.------------signature starts here------------
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
Sure, but just trying to warn you of the chance of shorting the buffers which kind of ruins the party once you get the Sc going and realise you need to spend $$ on a buffer set which i expect are geting scarce. I got very lucky and a guy was stripping his 50G15.
Scored the dead Sc and 2 good buffers for $40, SC is reapired so a vluable item.
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
7 blinks------------signature starts here------------
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
I guess this is progress. I have 3 less blinks than I started with. That's a 30% improvement. Lol------------signature starts here------------
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
Oh, and a full list of every part you replaced may help too. There were a few things I had not considered on my board.Comment
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Re: Panasonic TC-P42S1 10 blinks, bad SC maybe solved.
Q660 - rjk6026
q661 - rjp6065
q402 - 2pg011
q403 - 2pg011
q404 - 2pg011
q422 - 30g123
q423 - 30g123
q424 - 30g123
d865 - 8688
ic501 - m8707fp
ic521 - m8707fp------------signature starts here------------
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Hello! yes I know there is already lots of information about this issue. I have a Panasonic TC-P55ST50 that originally displayed an 8-blink error code. Following the troubleshooting flowchart, I ended up replacing the SS board. However, even after replacing it, the issue persists. The TV turns on and stays on without displaying an image, and continuity is confirmed on all connectors. What am I missing here🤔?
Ok Im a mechanical engineer ...but I thought I was able to follow a rather simple flowchart for electric troubleshooting 😂.
TV Model: Panasonic TC-P55ST50
...11-20-2024, 08:52 PM -
Bought this TV used not working, panel flashed briefly on power up and it was blinking 8 times, a quick look on SS board revealed a common fault on the 3uF 250V capacitors, C201 to C205 (C1620X in the service manual), the solder joints were all cracked, C201 and C205 pins were darkened and some sparking had occurred on them, C201 was split open and clearly overheated in its last hours, replaced that one and resoldered the others, 8 blinks fixed.
Also the previous owner broke the antenna connector by taking the TV out of the wall mount forgetting to unplug it, I desoldered the tuner... -
Hi,
anyone able to provide the service manual for old plasma Panasonic TX-P42ST50E?
It turns off almost immediately (0~5 seconds after pressing the on/off button) and starts flashing the red diode 6 times.
I disconnected the left-hand side board (SC?, both the ribbon cable and the power cable to it) and also another ribbon going to bottom left board. Then the led signal is 8 flashes. According to service guide to another Panasonic plasma it would mean the left-hand side board is faulty. But I'm not sure it 100% applies to my model.
I checked that board for any obvious faults... -
Hello,
Stopped by this site trying to fix my parents Panasonic Plasma TV.
Model number is TH-50PZ85U
Power comes on and the red power light stays on solid.
Did a few checks like hold the power button on for 60 seconds, hold the - Volume while holding the menu button, no luck, still@ blank grey screen as the screen lights up very vague.
I also hear a few clicks.
I also think my parents said there was a thunderstorm and the TV failed after that.
Section 6 in the service manual talks about power and no screen,...10-30-2024, 10:09 AM -
Hello all,
As the title states, I followed the troubleshooting guide located here: https://www.manualslib.com/manual/23...page=53#manual, which concluded the 'A' board needs to be replaced. Looking around the net and eBay, I see that there are repair services for the board (TNPH1043UE? Not sure if it is a 'UE' as the suffix grid does not appear marked). What additional troubleshooting can be performed to ensure 1) this board is the problem and 2) since there are repair services, what are they fixing on the board?) I expected 3.3V not to be available anywhere...
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