Hi I have a LG50PC5D
The 4A Secondary side fuse was blowing, replaced 2 shorted MOSFET,s
Replaced some of the cap's, don't think any were gone, but changed them anyway
Now when plugging in the Red Light on the front comes on, PSU Clicks once and then shuts off.
If the YSUS board is disconnected it continually cycles, clicking
AC DETECT in cycles between 5V and 0V
STBY pin is steady 5V
I read a post from TOM66 about disabling the AC DETECT, the indication was that this was done by bypassing the optocouplers.
Can anyone please provide more...

Re: LG 50" PK540 Plasma Clicking, not turning on.

Hi I have a LG50PC5D
The 4A Secondary side fuse was blowing, replaced 2 shorted MOSFET,s
Replaced some of the cap's, don't think any were gone, but changed them anyway
Now when plugging in the Red Light on the front comes on, PSU Clicks once and then shuts off.
If the YSUS board is disconnected it continually cycles, clicking
AC DETECT in cycles between 5V and 0V
STBY pin is steady 5V
I read a post from TOM66 about disabling the AC DETECT, the indication was that this was done...