Kraken doesn't kwak - FIXXED

[GrindCustoms]

When you say that you don't have Kwak happening, do you still heard some filtering happening?

In this circuit, the control that affects most of the effect is the Range pot, definitly the one that makes it kwak, if you hear that the signal is getting filtered, that means it's making it's way through.

I would verify if the Range pot is not DOA.

I'll take the voltage of both IC and Trannies in a couple.

Edit: Range pot it is!

[GrindCustoms]

Voltages:

DC Jack: 8.64

IC1 CA3080

1: 0
2: 4.57
3: 4.62
4: 0
5: 0.61
6: 8.66
7: 4.57
8: 0

IC2 LM1458

1: 4.3
2: 4.62
3: 4.62
4: 0
5: 4.62
6: 2.03
7: 4.56
8: 8.65

Q1

E: 3.97
B: 4.18
C: 8.61

Q2

E: 0.61
B: 4.43
C: 4.62

Q3

E: 4.64
B: 5.12
C: 8.67

[fixxe]

Voltages:

DC Jack: 8.64

IC1 CA3080

1: 0
2: 4.57
3: 4.62
4: 0
5: 0.61
6: 8.66
7: 4.57
8: 0

IC2 LM1458

1: 4.3
2: 4.62
3: 4.62
4: 0
5: 4.62
6: 2.03
7: 4.56
8: 8.65

Q1

E: 3.97
B: 4.18
C: 8.61

Q2

E: 0.61
B: 4.43
C: 4.62

Q3

E: 4.64
B: 5.12
C: 8.67

Thanks! Greatly appreciated.
So on IC1 your 6 is higher but that could be due to the hi/lo position your pedal is in. And my 7 is somehow higher than yours...
And on IC2 your 6 is lower. The transister orientation I don't know, but the voltages seem to be right.

The filter seems to do one sweep when I touch certain areas of the board with my finger. I think it was the ICs and somewhere else. I need to check that again.

Or did you somehow confirm now that my Range pot is broken?

[GrindCustoms]

The voltage can indeed vary with the postion of the switch but also with the component in their path and their tolerances, but if your voltage are similar to mine, you should be good.

I will not confirm that your range pot is broken, i don't have your circuit in front of me.

But i would check if he works correctly for sure.

[fixxe]

Should't the 7 on your IC1 have 8,6V too? Since it seems to be V+

Is there anything you can see where the fault (IC1 pin 6 and 7, IC2 pin6) could be by a quick overlook at the schematic, I'm not really good at reading those.

Here are the pins of IC2: http://circuits.datasheetdir.com/37/LM1458-pinout.jpg

[fixxe]

Anyone?
I forgot to say the hi/lo switch works.

[fixxe]

Y'all got sunshine over the weekend or what? 

[GrindCustoms]

Did you pushed your trouble shooting of this a bit further?

I did'nt really knew what i could do more to help you with it.

[fixxe]

Thanks, that's nice to ask of you. I tried a different CA3080 with the same results. I think I'm going to do a thorough audioprobing the next days to see if i get any further.
The hi/lo switch works, but the pots do nothing, maybe that gives you another idea?

[GrindCustoms]

Not sure because picture of your pcb top is not clear, but C8 look like you might have installed it the opposite way.

[fixxe]

C8 is right.
I did some further probing and I'm getting very quiet crackling on R9. Also R2 is silent, I don't know whats up with that.

[GrindCustoms]

When you audio probe, the idea is to follow the audio signal from it's starts until it stops or starts acting weird meaning there's an issue (duh)

R2 is in parrallel with C2 that are connected to VB than to the audio signal, this (someone might correct me if i'm wrong) set the input impedance of the audio signal so it's normal to me that you don't get any audio trace from it.

From my interpretation of the schem you should get audio from both ends of R9, got to mention that i'm still not understanding envellope filters concept that much yet, just tyring to help out using some basic logic.

Some more experienced member might need to chime in at this point, i've pretty much reach the limit of the help i can provide you about this matter. 

[fixxe]

It's more of a ticking on R9, or I dont know. But it has a certain frequency. I drew the way I probed so far.
Thanks for your input so far

[GrindCustoms]

You hear audio signal on the pos and neg side of C10? But soon as you probe the signal input side of R9 it does'nt do much?

Have you re-flowed your solder joints? And i'd like to know what you get on both lead of the C10.

[GrindCustoms]

I guess i'll find out how this thing works as we «fixxe» this