I'm a newb here & I know some basic things about capacitors. But wondering specifically what this guy here is doing in this part of the circuit?
This is a schematic for the main board on the Sony STR-DH130.

Pretty sure this part of the circuit is part of the Protect system, to detect a voltage overload from the output transistors on the right audio channel.
Long story short, those two output transistors on the right channel shorted out (bringing the emitter resistor and an adjacent 100ohm resistor down with it). Anyway, when desoldering the emitter resistor, my dumb self also desoldered C761, a teeny... tiny SMD 220PF capacitor.
I also jacked up the trace from that capacitor to Q761 (the current detector).
After desoldering the output transistors, and even my SMD capacitor/trace mishap, the system will still start - and was not going into protect mode.
Fast forward to today, I installed a new emitter resistor, and also placed a jumper between R761 and Q761 EDIT: From the bottom of R761 to the base of Q761 (eventually once my SMD 220PF capacitors come in the mail, I'll get one of those bad boys in, too.)...
But afterwards (and checking my work with the multi-meter for any kind of weird solder bridges anywhere, everything checked out OK)
But now, the system will go into protect again after powering up.
So I'm wondering, is it because I still need to get this capacitor back in?
Thanks for the help!