Need help 47lm7600ua

[mattstolte]

Ok got this lg tv its one of them smart 3d tvs. And im getting this half line in tv with no picture, when i disconnect lvds cables the line goes away, they have no tcon, unless tcons built in main or in panel, but i got another main board off ebay and replaced it and i get same thing, but i get sound on it but prior didnt have any sound whats options here? I hate to loose this tv all the lines go away when i unplu lvds

[mattstolte]

Re: Need help 47lm7600ua

Please tell me not panel

[tom66]

Re: Need help 47lm7600ua

I'm thinking bad panel from the image, sorry. Most faulty LED-LCD TVs now have bad panels, it's the most common fault from what I've seen. I basically don't pick up big screen LED-LCDs unless I can be sure the panel's good. You can try unplugging one half of the panel from T-con/Main and see if you get half a picture (repeat for each ribbon.)

[mattstolte]

Re: Need help 47lm7600ua

Tom I get no picture when I unplug any half of lvds cable

[tom66]

Re: Need help 47lm7600ua

Show us a picture of the back of the set so we can see the arrangement.

[mattstolte]

Re: Need help 47lm7600ua

i tried unplugging one at a time lvds cables and switching them up, still no picture on either side

[tom66]

Re: Need help 47lm7600ua

Please show us a picture of how the connectors and boards are laid out.

[mattstolte]

Re: Need help 47lm7600ua

[tom66]

Re: Need help 47lm7600ua

Hmm, yes it appears the T-con is on the main board. What you can try doing is removing the frame around the panel, check for over-heating tabs (COFs) - they will be too hot to touch if bad. Also check for liquid damage etc. I would be very surprised if the main board was causing this, especially given the frequency of bad panels we see now for modern LED-LCD TVs.