Toshiba 46xf355db upon start up there is a fuzy picture and lines

SOURCE: 42' plasma daewoo tv with vertical color lines.

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

SOURCE: Vertical green lines on screen

IF THE LINES ARE ON LEFT SIDE ITS THE LEFT BUFFER BOARD AND VICE VERSA THEY ARE ON THE BOTTOM OF YOUR TV HOPE THIS HELPS YOU OUT

SOURCE: red vertical line down right side of the screen

hi

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
LCD driver.
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


Use robber

Place the rubber on the top of TCP

Gently close back the top casing


Good luck...

SOURCE: Vertical red line on Toshiba REGZA 52HL167 tv.

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

SOURCE: Vertical colored lines on left half of screen.

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.