When tv is plugged in a relay clicks twice when I hit the power button standby light blinks 10 times and nothing happens no power no sound. Anyone have any ideas?
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Panasonic 50" tc-p50g20
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Re: Panasonic 50" tc-p50g20
Must be the week of 50" G20/25 issues, I think your the third one. SC boards fail in these, can cause SOS10 & SOS4.
Could try disconnecting SC2 at SC and see if it changes, there's a guide in a recent post 2010 G20/25 FHD Plasmas with plenty of steps to try. I'll check which one, just uploaded it again today.
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Re: Panasonic 50" tc-p50g20
GT25 4 & 10 Blink
VT25 3D 10blink
S2 10 blink, uses same SC board
5081 fault finding and repair I had fun doing this but the last board tested my patience.
G20 10 blink
There's more, just try a search, these came up on TNPA5081,
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Re: Panasonic 50" tc-p50g20
Originally posted by leo25 View PostI unplugged the ss board I believe and it stayed 10 blinks when I unplugged the board I believe u said it went to 7 blinks
let the power bleed off before reconnecting or measure it at the Vsus connectors otherwise the 200v that's sitting there may spike something.
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Re: Panasonic 50" tc-p50g20
yep, it's a 2.06Mb PDF download. If you don't have the internet then how do you access this website? I guess you're saying you have no PC or laptop to access it and open it?
anyway, hopefully you can get the idea of what to check from all the other posts. i guess this also means you have no copy of the service manual either.
Just disconnect SC2 on the Sc board and power it up and see what happens or grab a meter and check the resistance or a short across the 2 pins.
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Re: Panasonic 50" tc-p50g20
If you disconnected the Sc board, was it the 2 wire power cable from the PSU to the SC that was disconnected? That connector is SC2. There's only 2 connection going in, the white ribbon (SC20) P5V,P15v, data, SOS6,7 etc goes on that, Vsus (200v approx) goes in on SC2, it's the pins on the SC at SC2, cable removed, check that's there's no residual voltage at the pins, the caps on the Sc board may still be charged.
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