Re: Panasonic TX-P42GT20B - Stuck Stby
yeah or do it insitu. If the onboard LED does not momentarily illuminate at all sounding shorted, somewhat logical I'd think.
Unplug SC2 and check resistance or for short and q661 willbe lower left heatsink with the TV viewed from the back right way up.
My Avatar would be indicative of this board , LOL.
or remove the board. If you turned it on with the sc removed and it changed from 10 blink, that also may indicate SC. Search TNPA5081 , should be a fair bit of historic info around. Two most common codes for bad SC for this model would be 4 & 10 blink.
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Re: Panasonic TX-P42GT20B - Stuck Stby
TV unplugged from the wall,take your DMM and put on low ohm scale (where it beeps when you touch leads). Just measure between the 3 legs of Q661,it's located left lower quarter on a heatsink. If it measures shorted between the legs then remove the board.
Then make sure you sit down,have enough coffee and/or guinness/smokes with you,phone your family/friends that you will be AFK for awhile and to not worry. THEN read this:
https://www.badcaps.net/forum/showth...light=tnpa5081Leave a comment:
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Re: Panasonic TX-P42GT20B - Stuck Stby
funny you should mention that, not intending to overwhelm your cranium my friend but that is exactly what i am doing!
@tw2005
During initial start up before the led starts the 10 count, i temporary get led on SS board, none on SC board.
should i SC remove board before i check for shorts?Leave a comment:
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Re: Panasonic TX-P42GT20B - Stuck Stby
Do some research then you will find out.Leave a comment:
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Re: Panasonic TX-P42GT20B - Stuck Stby
you have the manuals but SC2 is the 2 pin power connector Vsus enters from the P board. Q661 is the location number of a RJP63F3A or could be F4A in the manual it will be Q16661.
In majority of cases it will be shorted if the board has failed, test it and see.Leave a comment:
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Panasonic TX-P42GT20B - Stuck Stby
Hi and to start with please forgive my ignorance.
TV is giving a 10 flash fault code.
Any help would be greatly appreciated.
Thanks for your time.
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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 -
Hi
The TV seem to start ( blinking green) but goes into blinking red. No display and or backlight. Full view photo.
Actions :
1. Disconnected Panel's Right, 2nd, board : TV comes ON (steady green , no blinking red )
1a. You can see in two photos the B/W screen , fading blue "HDMI12" , and the wierd sides of the image, like an old CRT.
Obviously the fault is from or on the Right, secondary board
2. I taped the Flex tracks, ~2 tracks at a time- see Photo. The issue seems to be on the V lines (Assuming Data...09-03-2023, 03:51 AM -
Hey....
Board as written in description was stuck at VGA LED. common Problem wit these type of bords.... tried all the "standard stuff" like resettin... reseatin.... found out the LED Controller MCU1 = IT8295FN-56A geting burning hot under the last PCI Slot.. now i desoldered it cause there were only 18 ohms at the caps arround.... another aorus x470 in working condition with similar part and nearly same layout had arround 280 ohms...
my question is: why doesnt the board start know without this chip.... worked myself through the boardview but i can´t understand... -
Panasonic tx-55cx802b stuck on panel test mode.
It was working normally but few days ago some of the LED reflectors fall off.
I've opened it up carefully, re-glued, while it was open switched it on to test LEDs.
Then carefully assembled back.
After plugging in to power remote does not work.
Using power button on the TV it turns on but gets itself into a panel testing mode: white, gradient, red, gradient, blue, gradient, green and so on switching between colours.
Anyone knows how to get out of this panel testing mode?
I've tried so... -
Hello, I have this TOSHIBA 32AV933G and it is stuck on standby LED (red). It doesn't turn on and the 12V is missing. Anyone has any experience with these PSUs and what to check? (DPS-140SP A)
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