My Sony Bravia 46" has a 1" thick black line horizontally thru the middle of the screen. It separates the top and bottom. Has anyone seen this happen before?

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Mar 7, 2009 - 30 posts - ‎25 authors
Hi guys, Ive had this TV for about a year now - all of a sudden thin vertical lines havecovered my screen (show in link below) No matter what ...Missing: 40bx421

TV Repair Help for Vertical & Horizontal Lines on Your TV ...

? 2:47
https://www.youtube.com/watch?v=b0sI7LB4cZE
Apr 25, 2014 - Uploaded by ShopJimmy.com
TV Repair help with troubleshooting lines on your TV Screen. ... hi i have a sony bravia mdel # KDL46EX523. i have horizontal multi colored lines ... My TV has the following symptoms: - Horizontal lines from top to bottom of .... thick(like 1-1/12 inch) and a couple of green vertical lines next to the black one.Missing: kdl ‎40bx421

Flat Screen TV Has Lines Going Through Screen - Possible ...

Your LCD or Control Board is damaged. You can replace the LCD or the Board or have someone do it for you.

xbr 65x 850b sony ultra 4k tv smart ... what cause it to be black screen but you can hear the show playing

The fault is with its main power regulator section circuit itself. Check all the electrolytic capacitors there. Replace them. Replace the main filter capacitor too.

The T-con board is developing problems,just not dead yet.This board it sit at the middle of bottom of the LCD screen.That board is the cause.

Hello,
When you turn your tv on and there is no input signal does it have the lines?

The LCD Panel must be replaced to fix both problems. The cost in doing this would exceed the value of the set. I recommend not putting the money into it.
Skyassoc

Thats a pixel data problem, there's no data being sent to that row of pixels so they don't change color. This is a pixel address registry (PAR) issue and the PAR circuits need to be serviced its usually due to open or shorted SMT components on the PAR circuits. PAR also sends data, voltage, and control to each pixel, the green line you see are pixels that have voltage but because there's no data sent too them their all green because there's no control. If the pixels have voltage but no data or control they show up as green red, blue, yellow, or whit line vertically down the LCD panel. The vertical-horizontal section of PAR are controlled by 16 to 32 bit micro-controllers which may need replacing. If its under warranty take it back if not have your local repair center fix the tv for you...

Most likely the panel is bad. You have a year warranty on the panel. Please check your purchase date and contact a local Sony authorized repair facility.

Both sound like bad LCD panels. The following must be answered to confirm this:
Do the lines appear on all inputs/all signal sources?
Can they be seen in the OSD/menu?
If yes to both questions, it is likely that the LCD panel is bad