LG TV Developed Fault

chickendipperbabe

Bigphil1474 wrote: »

Would be interested to know the outcome of this. I have an LG 42LA740V which has a rare intermittent fault along the same lines. When you turn it on a strip of about 3 inches wide top to bottom of screen is discoloured lighter to the rest of the screen. Happened again yesterday. I had had the tv on for a couple of hours watching a movie, no problem. A while later turned it on and this problem appeared - turned the tv off, unplugged it etc. and no change. Went to the pub for a couple of hours and came back and it was fine, and fine again this morning. It's probably been 4 months since it last happened. I do have extended warranty for another 6 months, so if it is an inherent fault, would like to know how you got on. Thanks

Your fault is basically the same as the OP's, just different symptoms. Google Tab bond failure, the problem lies with the bonded connections on the panel. Quite rare seeing it on an LG Panel but not uncommon. Its an un-reparable fault requiring a replacement panel. I would check there hasn't been any moisture allowed to run down the front of the screen, maybe overzealous with cleaning solution, kids with a water pistol etc as these days this the main cause but it can happen on its own.

Manufacturers now usually mount their panels upside down (with the electronics at the bottom) for better heat dissipation but the drawback is any liquid running down the screen hits these bonded connections & boards and electrolysis kicks in. I run a company selling/leasing/repairing commercial AV equipment and have seen this hundreds of times.

Al_Ross

95 % of the time this problem is caused by poor manufacture of the screen i.e an inherant fault ,the only way to know if liquid hs been poured down the front would be a complete dismantle of course.
I have previously read on this forum tthat Currys will try and dismiss this fault as accidental damage,so get your own indendant report, do not go to them for one.

akkers

Do some research on google and if you can find enough people who have had a similar paroblem with LG TVs then you could argue that this a a design fault and has to be fixed by the manufacturer.