e-licktronic Forum

Hi, i only hear a verry low trigger signal on the Handclap. Changed the BA6110 - no results.
Q38 was damaged. I have changed this and now it overheat all BA6110 i put in. On Pin4 of BA6110 and both collector of 2sa798 are -15v.



Maybe someone can help me, or have some idea


Output signal


Trig


Noise


Env


ACC


Q37 Emitter


R234




+/-15v are on the marked places ok

Not an expert but this helped me : http://hardware.freepage.de/raf909/ under the circuit analysis section you can see what does what in the clap section (but I guess you probably know all this already)

Im not an expert too, but i know this page

now... every new BA6110 is verry fast grilled. Without the BA6110 the Q38 only have on one leg -15v. On the place of BA6110 i have -15v on point 5 and +15v on point 9.
Without the IC, there is no other place for the pins of it with -15v. If i put in a Ba6110, i have the -15v on pin4 again. I wouldn´t kill one more of it

I will take some measurements of all points on the place for BA6110 tomorrow.

duplicated post

Measurements of place of BA6110 without the IC:

Pin1
Pin2
Pin3
Pin4
Pin5
Pin6
Pin7
Pin8
Pin9

The transistor on q38 works well. is not defect. If i put in a BA6110, there is on Pin4 -15V and the 6110 is killed in the same time.
Please, can anyone make reference measurements (Without the BA6110 please)?

Thx!

does your noise work?

my noise signal

That looks crazy low, where are you reading that? You should be probing pin 9 of the second 4006.

What does your snare sound like?

+ on pin 9 and - on pin 5 is how it's supposed to be

I read it on the point noise in the clap-part. I don't know how high it should be.
The snare works - only tone and snappy doesn't.