LG 60PB5600 - No go.

[Turnip]

Hi folks,
Have one in where Red Led flashes and relay clicks, but it doesn't fire up. Q402/4/5/6 on the Y-Sus board appear S/C. Gather they're IGBTs of some sort, so ordered the Ebay kit.

Wonder if anything else needs to be considered, as unlike Panasonic, the board earths appear good as don't rely on contact with dubious soldered pads - Any thoughts ?  - Chris.