Stink Bear
Active Member
Looking for advice / help. The original problem was a weak and garbled right channel. I removed the pre-amp jumpers and cross jumped, the problem stayed on the right side. I then swapped output transistors and completely lost the left channel. I cross jumped again and still got output from the right channel. I would guess I took out a transistor.
I did some searching for the transistors ( 2SC793Y), it looks like old ones are available, I don't know about new ones.
I also did some searching for a replacement main amp unit thinking that I might just replace the whole thing. I haven't found one yet.
So I thought I would ask some people more knowledgeable than I for recommendations on continuing to try to troubleshoot / repair what I have, or keep trying to find a replacement main amp unit.
I have limited ability to read and understand schematics. I have multi-meters. I also have an O-scope, I haven't touched one since tech school in 83 and didn't use one much then, but I think I'm still capable of learning if someone wants to help.
Any advice / help would be appreciated.
Thanks,
Brett
I did some searching for the transistors ( 2SC793Y), it looks like old ones are available, I don't know about new ones.
I also did some searching for a replacement main amp unit thinking that I might just replace the whole thing. I haven't found one yet.
So I thought I would ask some people more knowledgeable than I for recommendations on continuing to try to troubleshoot / repair what I have, or keep trying to find a replacement main amp unit.
I have limited ability to read and understand schematics. I have multi-meters. I also have an O-scope, I haven't touched one since tech school in 83 and didn't use one much then, but I think I'm still capable of learning if someone wants to help.
Any advice / help would be appreciated.
Thanks,
Brett