TH-42px80u c1 Board Replacement – I own a Panasonic TH-42px80u plasma television and recently I had an issue of a red vertical line showing up on the right side of the screen as shown in the image below.
![Red Line Panasonic TV](http://randomnuggets.com/wp-content/uploads/2014/12/IMG_3349-300x225.jpg)
After looking through the service manual, I realized it is probably the c1 board. There are 2 boards for the vertical and 2 board for the horizontal part of the image and the c1 & c2 boards control the vertical sections of the screen and since the line was vertical and on the right side of the screen, in my case is was the c1 board.
![IMG_0001](http://randomnuggets.com/wp-content/uploads/2014/12/IMG_0001-300x225.png)
![A-board](http://randomnuggets.com/wp-content/uploads/2014/12/IMG_3352-e1419359455346.jpg)
Disassembling the TV to get to the board was not that bad. The first time I did it, it took about 1.5 hours because I was taking my time, and carefully inspecting everything.. The second time I did it it took 1 hour to disassemble and reassemble total. Why did I do it twice? My first replacement c1 board had a broken connector which I did not realize until I has the old one out and about to put the new one in. So instead of leaving it all apart I put it back together until I could get the replacement. The service manual does a good job of waling you through the disassembling the TV so I won’t repeat it here except to give some advice and a details that I wish were not in the manual.
Recommendations
- There are many different types of screws, so keep them straight, I used labeled baggies for each screw batch.
- Take a picture of the wire runs before removing them from the clips, you may not need them, but if your unsure of a connector or how the wire was clamped down, it will help.
- Many of the connectors on the A-board you just have to squeeze and pull, but not all so look carefully.
- The connectors on the c1 board lift up as indicated in the photos below.
Anyway, after replacing the C1 board, the TV has been working fine now.. A $30 fix.
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Thanks, I have the same issue on the opposite side of the screen, so I will be replacing the c2 board..