Hi, been lurking amongst some of the other threads but so far haven't had any luck.

I picked up a couple of non working 42" plasmas, and LG 42PX3RV and Hitachi 42PMA300A, both with the usual sound but no picture. Gave up on the Hitachi as decided not worth the time or money to fix a low res set in my opinion, but would be good if could get the LG up and running.

When I got the LG most of the fuses were missing, from PS, ZSUS and YSUS.
After replacing them none have blown, but if YSUS is connected, the unit powers on for a few seconds with green led, then...