LM270WQ1 (SD) (B3) Controller board
I have troubleshooted this display and pinpointed the part pictured as the problem, I've confirmed it by replacing with a known good part and it restores the display to working however I am struggling to find a replacement part, where can I pick up a Controller board? does anyone have one spare even a faulty display with scratches, cracks or marks would do as this is a seperete piece
LG P/N 68700-0382A LG P/N 6870C-0382A
or alternatively is there a component on these that is prone to going I could replace?
So I repaired today and all is working well, it's not difficult, out with the old and in with the new, probably the most awkward part is getting the LG panel off the housing, be very careful not to pull on the connected cables or you run the risk of pulling of the surface mounted connectors
So the back of the panel the area you are working on is at the top underneath that raised metal cover, there's lots of silver tape and black tape here and no matter how careful you are you will tear it (I did anyhow!)
There's only 4 screws holding this on, one of which is covered by black tape
Fold the cover away from you and let it stand up, the board is now held in place by the 2 conectors at the top with zif connectors, the LVDS cable and the 2 push out connectors, take care taking these out, the board should just lift away when these have been removed
Part number to check which revision you have to order the replacement part
Old at the top, replacement part below
Assemble in reverse order then you should be back working again
Any questions please ask and I will do my best to help :)
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