Panasoic TH-50PC77U blinks 7 times

[hitomi]

Hi, I have a HDTV model TH-50PC77U and blinks 7times.
As I researched, it means "SC Floating Voltage SOS" and it could be caused by SC, SU, SD, D or P board failure.
I found a Troubleshooting book for TH-50PZ (http://www.scribd.com/doc/46124232/T...11DU-Chasisbut) but no luck for my model.

Can anyone give me tips?

Thank you.

[rayrod81]

Re: Panasoic TH-50PC77U blinks 7 times

7 blinks means a bad SC board or buffers most of the time on this generation of panasonics. The 2 I have seen recently had the 7 blinks. One had a bad SC or Y-sustain and the other had a bad lower buffer.

[cadiman]

Re: Panasoic TH-50PC77U blinks 7 times

I don`t see any power supplies on ebay (CLUE).

You might want to check mosfets after bridge rectifier (110vac in ). I have seen these fail on panasonic.

Also on secondary of power supply see if you have 3300uf 85v caps (2) These fail.
Some will be bloated and some will not. Power supply will shut down in either case.