Have this 55" Panny and, after replacing the SC board (twice, with two different boards), the SU and the SD, it is still showing the 7 blink SOS.
Question is: Being fairly convinced that these three boards are now in working order, is there anything else on these Panasonics that could and would cause the 7 blink code to appear?
There are no shorts on the SU and SD boards, and as far as I could test it the SC (or, Y-SUS) board appeared to be in working order.
Note: Did find this from a post here back in 2016, but both of the fuses on the PSU seem to be in working order:
Looks like your repair kit is missing the micro sized ic and transistor. That could be responsible for it.
ALSO check the power supply secondary fuse. It can fail together with the SC. If they are blown, it could also trigger the 7 blinks code.
Unless there is another fuse on the PSU that he is calling the secondary?? Is there something else I should be checking on the Power Supply (or elsewhere) on the set in order to eliiminate this 7 blink code? I'm getting an initial jump of 197V coming out of the PSU and heading over to the SC (before the 7 blink code kicks in and the voltage then slowly descends), so I don't think anything is faulty with this particular Power Supply Unit.
~ kca
Question is: Being fairly convinced that these three boards are now in working order, is there anything else on these Panasonics that could and would cause the 7 blink code to appear?
There are no shorts on the SU and SD boards, and as far as I could test it the SC (or, Y-SUS) board appeared to be in working order.
Note: Did find this from a post here back in 2016, but both of the fuses on the PSU seem to be in working order:
Looks like your repair kit is missing the micro sized ic and transistor. That could be responsible for it.
ALSO check the power supply secondary fuse. It can fail together with the SC. If they are blown, it could also trigger the 7 blinks code.
Unless there is another fuse on the PSU that he is calling the secondary?? Is there something else I should be checking on the Power Supply (or elsewhere) on the set in order to eliiminate this 7 blink code? I'm getting an initial jump of 197V coming out of the PSU and heading over to the SC (before the 7 blink code kicks in and the voltage then slowly descends), so I don't think anything is faulty with this particular Power Supply Unit.
~ kca
I am new to this forum but not new to forum world. I come from Automotive end of side which is my main passion in life. Give the automotive nature, I love fixing and restoring things and I have in the past fixed many simple electronics, soldering, etc.. but this is a bit more involved so I found this forum, and I am very glad I did.
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