Taking voltage measurements for troubleshooting

Hmm, this looks like it might just be a tough save regardless. Finding a suitable STK-1060 replacement might not be doable. I'll do some digging but my initial search did not turn up any exact replacements that seem reputable.

Also, I went back and reread the thread and noticed I left out a couple of tests.

No, just measure ohm over C513. If it has failed (shorted), you get the same problems. But..
C513 measured 0 ohms. I checked C613 and it shows OL. You were right on that one too.

I'll poke around a little more but it looks like this one might just be a goner. Oh well, I 'll keep it around for parts I suppose.

Appreciate all the help guys. I learned a ton~
 
Well I've been searching high and low and the only one I can find is
2SB716 --> KSA992 for Q507. It's the closest I can find. The only diff as mentioned is the collector dissipation rating of 500mW vs 750mW on the original. All the other ones I can find have even lower collector dissipation figures. Not even sure what this measurement tells me.

Anyway, that's the closest I can get other than finding some NOS stuff or questionable Chinese clones...Bummer.