Samsung LE40R74BD Clicking Relay (VIDEO INCLUDED)

[jamiem1987]

Hi guys, I've got a Samsung LE40R74BD in for repair, the fault is the relay clicking and the set is not powering up.

Heres a youtube video showing the fault..  http://www.youtube.com/watch?v=4mx7WJqq1wk

I've checked all the capacitors and changed the ones that read low as this usually causes this fault but this hasnt sorted it.

I've got another signals and digital pcb board from another set I've swapped over to rule these out, also tried powering up with the inverters disconnected as I thought this might be holding it off but it seems not.

Basically i've narrowed it down the psu board, which is BN44-00134A, aside from the caps which I've changed I'm not familiar with any other faults with this set,

Anyone any ideas?