Their are 2 left channel output transistors that are bad 1- 2sc3264 and 1- 2sa1295 , also output assembly has 1- 2sc2275 bad. The other outputs assembly transistors are good. Is there a source for these? Also how do I test R105 in pic. It has 3 legs and what reading is acceptable, it is a .22/5Wx2. thanks