Question about Televison & Video
Toshiba 46xf355db upon start up there is a fuzy picture as if the screen cant hold all the lines together, after about 10 minutes the picture is fine or if you turn the tv on and off a few times it fixes the problem quicker. However once it is working there is still a couple of vertical lines on either side, after a longer period of time the lines on the right side vanish and everything is ok bar one line on the left. How can I tell if it is the screen thats at fault, inverter board, pcb, main board? many thanks
I believe that tv is about 10 years old. The best solution and probably most cost effective is to replace it.
Posted on May 17, 2017
the way how you described it looks like the screen is cracked but problem can also be in VPB (video process board).But without the model name its very hard to tell you more
Posted on Feb 19, 2008
I think your TV have a trouble inside lcd panel
the controller board contains driver IC. Deffective driver IC can cause of line display.
Three reasons why one vertical line accross screen can happen in LCD;
1.The missing signal from the controller IC to
2. LCD driver IC itself defective
3. Dry contact in the tape carrier package.
Use masking or electrical tape to mark it where the line was located. press it if the line back to normal but when release your hand came back i think it was intermittent. Open the LCD panel
Place the rubber on the top of TCP
Gently close back the top casing
Posted on Aug 21, 2009
I have this same problem with my 52 inch toshiba regza , The repair shop has said the cost of repair is as much as it is to replace the TV. I am past the one year warranty, but less than 2 year ownership, so Toshiba won't fix the known issue. Solution is don't buy a Toshiba
Posted on Feb 05, 2010
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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