mr.muddles
Super Member
Yes, the service manual from hifiengine.what you wrote is correct ( BCE) but the drawing in the square is wrong ! is it coming from original SM ??
Yes, the service manual from hifiengine.what you wrote is correct ( BCE) but the drawing in the square is wrong ! is it coming from original SM ??
How do you want me to test the transistors ? with the right tool (not ohm meter . It will not tell you if the TR is leaking .....Diode meter may be used but it will tell you if the TR is shorted nothing else
out of circuit if you want to be sure : yes always
with a diode test ? not good enough for me
Do you have some new TR ?
I just have half an hour for you tonight (it is late here)
I rechecked this one and it looks good now...I'm not sure about TR530..
red/+ on B
C = OL
E .5879
black/- on B
C = OL
E = OL
Is it shorted between the base and collector?
I had 14 V from TP2 to TP3
I think something is wrong...
When I touch TR527 it makes like a small rice crispy sound... a small faint pop
I too just recently got a c2a with similar symptoms, right channel has 37V on testpoints and on stereo right ch has no output (luckily since it would've fried my speakers) and on mono both channels play. I've measured few transistors as of now and at least TR520 or 522 is open. I pulled both and mixed them up. Is it safe to power with these two removed?