As a few have already said, you'll probably find a shorted output transistor, whichever one is closest to your .22 resistors.
Blown output transistors are typical with an audio amp that was played too loud too long. Particularly if it was playing through low ohm speakers. Can you confirm whether the speakers were 16 or 8 or 4 ohm? Did either L or R channel have an additional speaker connected besides the main speaker? This should be avoided after you fix the unit.
You can do preliminary testing of the transistors without unsoldering them. Simple ohm readings will tell you a lot.
Warning: DO NOT use the lowest ohm setting. This could send overmuch current into a base terminal or other parts of your circuitry. (My analog meter has an internal 1.5V battery providing 60mA at the lowest ohm setting. My digital meter is different.) I don't know about your meter. Just stating this as a precaution.
Pull out the power plug. Turn on the amplifier. This should drain all capacitors. Wait 30 seconds. Check for voltage at the power supply capacitors. The idea is to avoid getting voltage at your meter.
Compare all transistor resistances across their three terminals. Put your leads across them using all six permutations. You're looking for the oddball. Probably a shorted one.
A normal transistor shows low ohms in 2 instances when it's off. Both instances are through the bias terminal. One way for NPN, the other way for PNP.