Lg 42LM615T and 47LE5900

[mintminty59]

Just wanted to put the feelers out there, I have been seeing a lot of LG LCD TV;s recently with very serious failure of the buffer boards that connect the TCON to the LCD Panel (the 2 strip boards that run along the bottom). I think its a very poor design they glued the ribbon cables onto the PCB. The 2 panels in this case are perfect working order but I am unable to repair both TV due to the damage on the PCB boards. I have attached pics so you can see what I mean. On the 47 Inch the damage was that bad it actually melted the connector and ribbon cable completely.

[mintminty59]

Re: Lg 42LM615T and 47LE5900

Is there any possible way to get these going again

[Alastair E]

Re: Lg 42LM615T and 47LE5900

Thats probably why they put these things--At the bottom--so when someone cleans 'em with too much cleaner/tips summit on 'em, this fault happens....

They are in the business of Selling Tellies after all--Making 'em last--to them, Aint economic good sense!

Ive seen lots of similar stuff with these new/sub 3 year old things, Made to Fail, cheap parts, stressed to the limits--what do you expect!

Planned Obsolescence in action....

I very much doubt anything can be done with those, may be worth cleaning the deposits off though, re-testing....

[mintminty59]

Re: Lg 42LM615T and 47LE5900

Thanks Alastair looks like we both in swansea. I am determined to find a way to get these going as there good sets when working. Sadly I think the PCB are toast Damage just to great to salvage them. On the 47 Inch it actually burned the ribbon cable in half inside the conector.

I am more upset about they glued the LCD panel ribbons on instead of using a connector so you can not replace the 2 boards

[truep]

Re: Lg 42LM615T and 47LE5900

Yep, it's damage caused by liquid, usually someone trying to clean the screen. They don't follow the manual as to how to clean the screen.

[mintminty59]

Re: Lg 42LM615T and 47LE5900

That might be the case, but I thikn there is more to it than that. To me it looks like a heavy build up of flux and the parts have corroded or reacted with metal case around the panel. The Ribbon cable actually burned in half and burned the connector. LG seem to think its a potential problem as they have escelated my concerns. That small bit of damage has rendered the units write offs. To me its an abvious design flaw.