Sony kdl-42w705b t-con ?

[jonny78]

Hi Guys looking for some help with this tv SONY KDL-42W705B...ive done alot of searching around and im undecided as to wether this is a bad tcon or bad panel ?? Alot of people saying tcon but dont want to waste money... attached is pictures of the tv and symptoms!

any help greatly appreciated..thanks guys!

[dskall]

Re: Sony kdl-42w705b t-con ?

Looks like screen burn in

[diif]

Re: Sony kdl-42w705b t-con ?

Take the back of the TV and there will be two cables going from the tcon to the panel that connects to the screen. Disconnect one at a time and power on the TV. See if there is a working picture on one of the sides that isn't black.

[dskall]

Re: Sony kdl-42w705b t-con ?

So your getting no images on screen or is that test screen?

[jonny78]

Re: Sony kdl-42w705b t-con ?

Take the back of the TV and there will be two cables going from the tcon to the panel that connects to the screen. Disconnect one at a time and power on the TV. See if there is a working picture on one of the sides that isn't black.

hi..ive done this and yes the side that isnt black is showing a perfect picture when i disconect one of the cables to the tcon board...ive read somewhere that this means that its a bad panel ??

[jonny78]

Re: Sony kdl-42w705b t-con ?

im hoping this hasnt got a bad panel as i picked this tv up for free! or could even do one of those temporary tab bonding fixes if it has indeed got a bad panel!

[attainteddragon]

Re: Sony kdl-42w705b t-con ?

if you have a good picture with one side disconnected and a messed up picture when you do the other half, then unfortunately you have a bad panel.

if you can correct the picture by squeezing the bezel or twisting it slightly, then you may be able to do a successful tab patch. outcome of patching tabs is various. i have had some fail as the temp rises and some are still going years later.