Schematics for PSPU-J704A for an LG tv?

[MarkZ]

Hi.

I have a LG 42PG6000-ZA.  (Manufactured 2008)

Sometimes it starts full up but lately it gets stuck more than not in blink mode (red/green on power on) and increasingly so.
It does so even when it hasn't been on for a day.
When it actually starts it works fine for hours (til I turn it off).

I exchanged 4 pieces of 3.3mF capacitors that was bulging on the PSU board, but no change.

Anyone has a manual for that model or an idea where to look next?

Thanks, Mark

Edit:
Changed the headline.