Question about Sony BRAVIA KDL-52W4100 52 in. LCD HDTV
It is a board problem
have it repaired under warranty or replaced under warranty
Posted on Jun 17, 2017
This is a software issue with both the TV manufacture and the cable box provider. This will only be fixed when the cable company and TV manufacture sit down and work out their problem. Some cable company has taken the first step by updating cable boxes with different software.
Posted on Dec 07, 2007
We had the same problem. Called Sony and they advised there was a "Software Mismatch" and suggest using a newer set top box. I'm just going to use the component. You would think they could resolve this with a firmware flash or something. Hope this helped.
Posted on Feb 27, 2008
http://forum.ecoustics.com/bbs/messages/2/176039.html <-- Check that out.
Also I have a Sony Bravia and it clicks while it is on as well. I read that forum and some people said to disconnect the cable box for 10 sec. and then some said it was the heat from the summer.. i don't know.. I just turned my tv off and then back on and it stoped. I read this is happening with all kinds of TVs....
Posted on May 23, 2008
Horizontal lines are relatively rare problem in LCD TVs.
The likely problematic areas are:
1) The LCD itself (the micro ICs embedded into the LCD panel structure); that doesn't sound likely based on what you say, but it's not completely impossible. The bad news is it's mostly uncurable.
2) The power board A-1511-322-D G5
Power boards may sometimes cause problems with display, although rarely causing horizontal lines.
I wouldn't start looking here either, but it is certainly a problem to consider.
3) Main board 1-876-561-13 R1506072C
Slightly more possible and yet not quite likely. A high operating temperature and bad SMD soldering process may cause some soldering contacts on the main board to behave differently when the board is cold versus when it heats up. It is very common and may have all kinds of different effects on the TV and the screen.
One way to check for that is with a regular dryer..the process is explained in many other solutions at fixya and around the net, so I wouldn't repeat it here...but it takes time and patience.
4) The most likely place to start with is the T-Con / LCD controller
I'd first replace that and see if the problem goes away.
5) There's a very minor chance that the LVDS cable that connects the main board with the T-Con does not make good contact initially and changes that as a result of getting hot. It's easy to just touch and move it lightly when the TV is still cold to see if it has an effect on the picture.
Sorry I couldn't just nail it for you, but that's the nature of the repair businss :-)
Posted on Mar 15, 2010
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