2 TV 's power surge maybeHave a LG 47LB650V and a LG 50LB650V. next to each other ( I know I'm a geek ) Story so far.....47" powered up and the 50" in...
Answer to: 2 TV 's power surge maybeSorted. no signs of damage on either power board. no popped caps, no popped anything in fact. Turns out both TV's had a main board failure not a power board failure. Quoted £190 (US $245 ) from LG for a replacement board (EACH). Bought replacement boards for both from a well known international auction site (Eb**) for a total cost of just over £40 (US $52). Took longer to update them to latest software versions than it did to fit them.
Answer to: LCD connector issue and replacementAnother thing to consider is the backlight for the 3gs is "powered" by a coil on the logicboard have a search for 'Part 6R8 Coil' for info