moondogtn
Well-Known Member
Ok....so, I decided to go ahead and try to finish up this little project. All was working before I decided to go ahead and replaced the remainder of transitors on power amp board. Q1-Q8, used list I provived initially.....and during alignment noticed voltage was off (showed 24 VDC) on Q11 case. Upon further investigation, I notice 2sc2690 I had installed in Q5 was backward. I removed and installed correctly, voltage was now correct on both channels but no sound (very faint) out of right channel, actually there is sound but very faint??? I went ahead and went through alignment. VR1 and VR2 set to 28.5 which is half of my collector voltage on Q9. and Q10 respectively. I also checked dc offset and set to 17mV. Still nothing out of right side. There is some sound but very, very, faint. So, I went through and checked things again. Still am not finding anything blatantly wrong. I checked volages on Q5 and Q6 and they seem fine as well? Any ideas? I may have lost a component or???
Bill
Bill