Output Transistors
4) Test using Echowars 6 way test. If ok, use them.
I went ahead and pulled the outputs. I marked everything before removal so that everything can be put back exactly as it was. I do not have any diodes attached to the heat sinks in my SX-1010, which is nice as I've read they can be easily damaged.
I did the 6-way check on all eight outputs.
Here are my results:
Black-C/Red-E
2SA747A: (ol) (ol) (ol) (ol)
2SC1116A: (ol) (ol) (ol) (ol)
**************************************************
Black-E/Red-C
2SA747A: (ol) (ol) (ol) (ol)
2SC1116A: (ol) (ol) (ol) (ol)
**************************************************
Black-C/Red-B
2SA747A: (ol) (ol) (ol) (ol)
2SC1116A: (.544)(.542)(.542)(.537)
**************************************************
Black-B/Red-C
2SA747A: (.532)(.529)(.530)(.532)
2SC1116A: (ol) (ol) (ol) (ol)
**************************************************
Black-B/Red-E
2SA747A: (.543)(.547)(.541)(.543)
2SC1116A: (ol) (ol) (ol) (ol)
**************************************************
Black-E/Red-B
2SA747A: (ol) (ol) (ol) (ol)
2SC1116A: (.546)(.545)(.545)(.553)
If I am understanding the test procedure correctly, I think that this means the outputs are in good shape in this amp? Are their any other tests that I need to perform in order to declare these as good?