So I bought this tv a couple months ago and it had a problem with the LCD panel. I fixed the Tcon board and removed the side panel following these instructions: https://www.badcaps.net/forum/showthread.php?t=49281
It worked and I enjoyed my new 70" tv that I purchased for $60.
However two weeks ago I moved a couple blocks and the tv hasn't worked since the move.
I am completely stumped! Here's what I got:
- TV won't turn on whatsoever (tried remote and side button)
- Is there a standby light? I can't remember but if there is, it's not on
- I have standby voltage of ~3.5 Volts (shouldn't it be 3.3) leaving the power supply board.
- It doesn't look like the back lights are on
- After inspecting the cable from the buttons to the main board it seemed like it was kinked and broken (My original thought was it stopped working after the move because maybe I didn't install the cable properly and laying the tv on its back ruined the wire?)
- In testing I ran a jumper wire, with the cable still in, from the pin on the main board to the button board. (on the side of the supposedly broken wire inside the cable). Doing this caused the speaker to start popping a little for a sec until I moved and lost the connection.
- I think I accidently touched the wrong leads (pin 1 main board jumped to pin 2 on button board) the 2nd time around and it started lightly sparking on the buttons board. I realized what I was doing was probably dumb and stopped.
- I purchased a new cable to run from the main board to the buttons and am still having the same issues
- The whole time when the tv is plugged in, there is an electronic whining noise. It appears to be coming from somewhere on the power supply board, but I can't pin down the exact location. Whining noise becomes a lot quieter after unplugging the main board.
I need some help, my wife isn't to fond of buying another tv, especially not anything expensive after I impressed her with how cheap I got this one for. And I'm not ready to start replacing boards willy nilly yet because it seems like I can't find a main board that isn't cheaper than $150
Thank you!
It worked and I enjoyed my new 70" tv that I purchased for $60.
However two weeks ago I moved a couple blocks and the tv hasn't worked since the move.
I am completely stumped! Here's what I got:
- TV won't turn on whatsoever (tried remote and side button)
- Is there a standby light? I can't remember but if there is, it's not on
- I have standby voltage of ~3.5 Volts (shouldn't it be 3.3) leaving the power supply board.
- It doesn't look like the back lights are on
- After inspecting the cable from the buttons to the main board it seemed like it was kinked and broken (My original thought was it stopped working after the move because maybe I didn't install the cable properly and laying the tv on its back ruined the wire?)
- In testing I ran a jumper wire, with the cable still in, from the pin on the main board to the button board. (on the side of the supposedly broken wire inside the cable). Doing this caused the speaker to start popping a little for a sec until I moved and lost the connection.
- I think I accidently touched the wrong leads (pin 1 main board jumped to pin 2 on button board) the 2nd time around and it started lightly sparking on the buttons board. I realized what I was doing was probably dumb and stopped.
- I purchased a new cable to run from the main board to the buttons and am still having the same issues
- The whole time when the tv is plugged in, there is an electronic whining noise. It appears to be coming from somewhere on the power supply board, but I can't pin down the exact location. Whining noise becomes a lot quieter after unplugging the main board.
I need some help, my wife isn't to fond of buying another tv, especially not anything expensive after I impressed her with how cheap I got this one for. And I'm not ready to start replacing boards willy nilly yet because it seems like I can't find a main board that isn't cheaper than $150
Thank you!
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