Re: Panasonic TH50PX70BA 10 blinking lights help
No tests out of circuit yet however looking at the schematic some are in parallel so some may be ok out of circuit
rowly747
Member
Last Activity: 02-17-2020, 07:44 PM
Joined: 03-29-2015
Location: middlesbrough
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Re: Panasonic TH50PX70BA 10 blinking lights help
Great I'll look at the video and advise.
The screen is free from cracks and the bottom comes on white and stats on when su board is unplugged. Hence me buying a second hand unit from emos, so presumed ok...Leave a comment:
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Re: Panasonic TH50PX70BA 10 blinking lights help
So my replacement SU board came fitted it and same sos7 light error. What now?
Also my old SC board that failed had loads of faulty transistors and diodes so was definitely cheaper buying a second hand boardLeave a comment:
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Re: Panasonic TH50PX70BA 10 blinking lights help
Any chance someone can help me identify a short on the SU board TNPA4188 TXNSU1HMTB. I've Left the SD board connected and tv shows white bottom half of screen and stays on finally, however I've tried using continuity mode on multimeter from a ground pin to the test points and all 4 are fine also tried the same ground to all pins on the 4 connectors to plasma ribbons and no shorts either... So a little confused atmLeave a comment:
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Re: Panasonic TH50PX70BA 10 blinking lights help
I now have SOS7 instead of SOS10.
I will have to buy replacement SU and SD boards now as I powered the Tv up without either connected and no blinking lights, but a solid green power light :-(Leave a comment:
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Re: Panasonic TH50PX70BA 10 blinking lights help
For quickness i have just purchased a new board, however once I swap them over and TV is OK I will begin to identify the failed components and make a list here for all to check on there boards if same problemLeave a comment:
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Re: Panasonic TH50PX70BA 10 blinking lights help
Hi Alastair e, yeh it seems so however I'm not giving up on this board. I've tested a few diodes and transistors and some are definitely short. I will make a list of components and their readings for other people to see and inspect on their unit.
The sc board in question is the TNPA4186 TXNSC1HMTB (AB).
Just so I've got this right which lead goes to drain on fet negative?Leave a comment:
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Re: Panasonic TH50PX70BA 10 blinking lights help
Yeh I've seen them cheap but wanted to double check the sc board was faulty first.
So I put black lead on pin 3 and red on pin 1 and get 578 ohmsLeave a comment:
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Re: Panasonic TH50PX70BA 10 blinking lights help
Hi Tom66 your website is great and is where i got the technical manual from.
I will check later on tonight if there is a short. Can these SC boards be repaired and finally if my SC board is knackered should I be checking the buffers as well in case it was in fact them that blew the SC?Leave a comment:
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Panasonic TH50PX70BA 10 blinking lights help
Hello,
My sister gave me the above TV with the 10 red lights fault code and was going to get rid of it but thought i'd take a look at it. I've managed to repair a LCD TV before but not a plasma one.
So the red lights occur when i plug in the TV but don't even switch it on using the button. I hear relays clicking as soon as i plug the cable in the some 2-3 seconds later it shuts down.
So i managed to get a service manual for the 10th gen chassis from a TH50PX77U which looks similar and followed the troubleshooting guide but with two diagnosis'. I disconnected... -
Re: Panasonic TH-50PX75U Plasma 10 blinks?
Would be great if kevinm34232 could update whether he fixed this in the end i also have a suspected P board problem. 10 red flashes before touching the power button.Leave a comment:
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