Question about Sylvania LC370SL8 37 in. LCD Television
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Posted on Jan 02, 2017
SOURCE: Thin blue line
I am a Sharp Servicing Technician. You posted this before. Ive got the same model TV as you do LC46D62U. I think the line you are experiencing is simply the broadcast. I notice it on some HD shows that broadcast the side bars. (Always on the Ellen Degeneres Show). Ive taken some picture.
1) Here's the line on the left that i experience
2) Later on in the broadcast, it goes away.
One way to check if its a TV problem or not. When the line shows up again, hit the MENU button on the remote. If the line appears to be "behind" the menu, then it is simply the broadcast.
If the line appears to be "on top" of the menu or shows right through the menu, then it is a TV problem.
Im thinking the reason it takes hours for hte line to appear is because it only shows up on certain shows or certain HD broadcasts.
Posted on Mar 28, 2008
This line would either indicate a horizontal problem cropping up or a power supply problem
I would suggest getting a service tech to look at it to determine where your problem is coming from but most likely it will be the power supply /deflection board that is the problem but I can't know for sure, it will have to be checked.
A lot of sets have had damages after a long hot summer a/c flipping off and on and current demand being peeked from the utilities storms or quick power loss off and on can cause problems like this to occur
Please let me know if you have any other questions, thanks
Posted on May 14, 2008
They go away after 10 minutes of what? **** She Wrote? Dancing with the Stars? Or simply being powered On? You have some cold solder joints on one of the PCB boards. Once they heat up they work perfectly. The only way to fix this is to have them reflowed by a tech with a soldering tool or have the board replaced. Good luck! Cheers
Posted on Dec 29, 2009
I had this problem on a 37" Viewsonic LCD. Pulled it apart and through a process of elimination, I traced the problem back to a small board with several flat white ribbon cables coming out of it. The board was near the top center of the screen and under a ton of other equipment requiring almost a total disassembly.
This small board was clean but I noticed one of the rubber standoffs had slipped down and was making contact with one of the outputs running to the LCD. It also happened to be the output running to the section of the screen with the problem.
I postulated that the sticky glue on the rubber standoff may have just enough conductivity to cause a problem. Moved it so that it was no longer touching anything electrical and then reassembled the TV.
Afterwards, I turned it on and was pleased to see the problem has gone away! If you're having the vertical line problem, then maybe this could be your problem too, especially if you have a Viewsonic since it could be a manufacturing defect.
Posted on Mar 22, 2010
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