Hello all. I have been trying to fix this TV that I purchased, and it has been nothing but a headache. The original symptoms were no power at all to the set. I used the Panasonic Training Guide combined with the service manual, as well as various posts from this forum concerning similar models to determine that the A Board was at fault. I sent the A board to ModusLink for repair, and when I reinstalled it, the relays starting clicking and I tried to power on the set. The TV went into locked mode with 14 blinks, which indicated either the P or A board was at fault.
Initially, I could not find any defects on the P board, so I went looking at the SN and SS boards and concluded that the SN board was shorted, so I purchased replacement boards for both. Those didn't work either, so I examined the P board once more and found that 2 diodes were broken, and one was shorted out. Now that I have found a real issue, my question is: How do I determine what kind of diodes to order? I have attached pictures of the board in question. D525 and D528 were broken, and D104 is the one that is shorted.
Initially, I could not find any defects on the P board, so I went looking at the SN and SS boards and concluded that the SN board was shorted, so I purchased replacement boards for both. Those didn't work either, so I examined the P board once more and found that 2 diodes were broken, and one was shorted out. Now that I have found a real issue, my question is: How do I determine what kind of diodes to order? I have attached pictures of the board in question. D525 and D528 were broken, and D104 is the one that is shorted.
Comment