Small Clone isn't chorusing

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Small Clone isn't chorusing

Postby Kablam » 30 Jan 2015, 05:00

Hi, I built a small clone from tonepad with no mods and no replacements, my problem is that only passes the clean signal, 0 chorus.

soo, i started to measure voltages and look the squem and layout if I made some mistake and i think that the components are in the right position, if i move the pots it sound some kind of oscillation so the lfo is working i think, but i notice a couple of things:

- There's 8,5v at the end of the red lead, but next to the 47R there's only 5v? i looked some voltages of other people and i think that my problem starts here. if i remove that resistor the components recives the right voltage.
- Q2 voltage is strange: C =5 B=0 E=0? another problem
- Q3 is hot, is that normal?

Here's some pics of my pcb

Image

Image

Image

Image

Now the voltages:

Battery = 8,5v

next 47R= +-5,5v

CD4047

1= 2v
2= 0v
3= 2v
4= 2v
5= 2v
6= 2v
7= 0v
8= 0v
9= 0v
10= 0v
11= 1v
12= 0v
13= 2v
14= 2v

MN3007
1= 2v
2= 1v
3= 0v
4= 0v
5= 0v
6= 0v
7= 0v
8= 0v

4558
1= 2v
2= 2v
3= 2v
4= 0v
5= 2v
6= 2v
7= 2v
8= 5v

LM358
1= 0-1(fl)v
2= 2v
3= 2v
4= 0v
5= 1v
6= 1v
7= 1-3 (fl)v
8= 5v

Q1 (left to right)
0 3 1

Q2 (left to right)
5 0 0

Q3 (down to up)
5 3 2

so thats it, sorry for my english, it isn't my native language, but please give me a hand i'm a little piss off with this.

Bye!
Kablam
 
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