I am working on a Samsung Plasma. Something like HP-T42XX. (don't have it handy)
Sound, no pic. Vs, Va Ve okay, Vsc comes up for a split sec then goes to about -20. Removed both Y drive boards, no change. If I disconnect the ribbon between the Y-main and the Logic, Vsc comes up to spec voltage. I will try to find a good logic pwb to try.
I have been able to swap out the Y-main with a (hopefully) good one so I'm less inclined to suspect it.
Thanks for any ideas!
