Hello. I am hoping the very smart helpful people of this forum can help me repair my TV. Here is the history of the what I have done so far.
I was given the TV by a friend who was going to throw it away because it did not work.
The TV definitely had a bad TNPA5349 board that was shorted across the power input. I sent it to a repair service on ebay and was told it was rare case and not repairable.
I then bought a refurbished TNPA5349. Before installing it I checked for a shorted power input and it was good. I installed it and powered on the TV. I could hear the relays click. The green LED's are lit on both boards. However, the front LED stays solid RED and I never see a picture on the TV.
I went through the troubleshooting manual in detail and checked the various power supply outputs to be as expected. The manual pointed to a bad A (logic) board. I purchased 2 different A (logic) boards from 2 different sellers. Both sellers informed me they were pulled from TV's with cracked screens. Sadly, both of the logic boards I purchased behave the same way. I still have the solid RED (NO BLINK) LED.
Can anyone help me determine if I have 3 bad logic boards or something else is my issue? How can I determine if the panel is bad? Please help. I would greatly appreciate it.
I was given the TV by a friend who was going to throw it away because it did not work.
The TV definitely had a bad TNPA5349 board that was shorted across the power input. I sent it to a repair service on ebay and was told it was rare case and not repairable.
I then bought a refurbished TNPA5349. Before installing it I checked for a shorted power input and it was good. I installed it and powered on the TV. I could hear the relays click. The green LED's are lit on both boards. However, the front LED stays solid RED and I never see a picture on the TV.
I went through the troubleshooting manual in detail and checked the various power supply outputs to be as expected. The manual pointed to a bad A (logic) board. I purchased 2 different A (logic) boards from 2 different sellers. Both sellers informed me they were pulled from TV's with cracked screens. Sadly, both of the logic boards I purchased behave the same way. I still have the solid RED (NO BLINK) LED.
Can anyone help me determine if I have 3 bad logic boards or something else is my issue? How can I determine if the panel is bad? Please help. I would greatly appreciate it.
Comment