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Panasonic Plasma TC-P46C2 - 7 Blink Light Error Code, Is this a reliable way to troubleshoot the set?


\015 The front light blinks 7 times while all boards are hooked to the power supply. I found a service manual online for this TV and it lists this blinking as an issue with the SN board. My biggest concern is that when I disconnect all the power outputs on the power supply, it still goes into safety mode, but the light then blinks 10 times. The service manual list this as a problem with the A Board, P Board, SN Board, or SS Board.\012\012I have reviewed the service manual and it does not have a troubleshooting procedure to determine which board exactly is bad. The codes tell me it is the SN board, but it seems as though the power board would be bad if I disconnect the other boards from it and it still goes into safety mode. My other issue is that I cannot get good voltage readings from the power supply because it always immediately goes into safety mode when I turn it on which appears to disconnect it's outputs.\012\012All this leads me to multiple questions:\012\0121.) Is there a procedure that will tell me which board is bad? The closest thing I have found so far is look at the lights and replace whichever board it indicates. This does not seem like the most reliable troubleshooting procedure and I do not want to just throw expensive parts at the TV until it works or I cut my losses.\012\0122.) Is it possible that multiple boards are bad and will need replacement? I do not want to replace one board and have multiple be bad, which then will possibly damage the new board that was just replaced.\012\0123.) Once the board is isolated, is it possible to repair it on a component level? All the boards with exception of the power supply appear to be double sided, so I am going to guess that only the power supply can be repaired by replace components with a soldering iron, but I am also not an expert, only a hobbiest.\012\0124.) Is it possible for the capacitors on the power board to be bad, even though they are not swollen or have exploded? All the caps on every board appear to be perfect. I know they cannot be tested unless they have been pulled from the board, so visual is all I can do at the moment.\012\012I will really appreciate any information I get back about this issue. I have read multiple threads about similar issues, but noone seems to go into detail. They ussually just say replace the one of the boards or check the capacitors on the power board. Again, any light that can be shed on this is greatly appreciated!\012\012Thank You!\015

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