scott2000
Well-known member
I was under the impression after some reading online that around 500mvdc at the junction of the bases of Q8 and Q9 would get me in the ballpark but I'm not sure if I was probing correctly.. Is this a good place to check? Would 500mv be correct???
Also,
Are the 36 ohm emitter resistors for q10 where I should be measuring across too??? Or the .43 ohm emitter resistors?
What voltages should I look for?? Around 20mv???
All this with no input signal?????
Once again, I appreciate ANY direction...
I've touched Q10 from probing and smoke came from somewhere on board and nasty hum almost blew my speaker....... Everything on the board is checking out fine now...???..... Need to find out what blew????Didn't see exactly where smoke came from....... :-\
There's some kind of thermal sensor on the heat sink..... it's open so I am guessing that's not good .....
Also,
Are the 36 ohm emitter resistors for q10 where I should be measuring across too??? Or the .43 ohm emitter resistors?
What voltages should I look for?? Around 20mv???
All this with no input signal?????
Once again, I appreciate ANY direction...
I've touched Q10 from probing and smoke came from somewhere on board and nasty hum almost blew my speaker....... Everything on the board is checking out fine now...???..... Need to find out what blew????Didn't see exactly where smoke came from....... :-\
There's some kind of thermal sensor on the heat sink..... it's open so I am guessing that's not good .....