Naughty Fish Doesn't Work - Help Please

[mickey.bellinello]

Hi to all!

Here I am again. In the latest episodes I had problems mainly caused by "fake chips" etc... this time the situation is different (I think).

I built a naughty fish using the suggested components. For the Vactrol I used the Xvive replica as wrote.

The situation is this:

The pedal works but no envelope at all. I tried the lp/hp/bp switch and the audio change, same thing with lo-hi. The up/down switch seems to do nothing (no sonic changes), the gain works and the peak change almost nothing (I assume it works because at o position the sound changes a bit).

I saw that the top led (which indicates the envelope situation) is always off, it turns on and stay always on when i move the range switch to the right (RANGE UP). If I play etc (at all gain settings) when it is off it remains off and when it is on it remains on.

I also noticed a lot of volume boost when the gain pot is turned right.

Don't know how it is possibile. I double check'd the soldering points etc but no issue.

For C4 I used a nichion muse capacitor (non polarized) but I don't think this is the problem.

The Measurement I made are those:

IC1:

Pin1 2.5mv
Pin2 2.5mv
Pin3 0.2mv
Pin4 -8.98
Pin5 2.8mv
Pin6 6mv
Pin7 6mv
Pin8 9.44

IC2LEFT:

Pin1 .64
Pin2 3.3mv
Pin3 0.1mv
Pin4 -8.94
Pin5 -6.32
Pin6 -4,94
Pin7 -6,82
Pin8 9,45

IC2RIGHT:

Pin1 1,11
Pin2 3,2mv
Pin3 0,1mv
Pin4 -8,98
Pin5 3,73
Pin6 .38
Pin7 7.84
Pin8 9,44

IC3:

Pin1 4mv
Pin2 6,3mv
Pin3 0,2mv
Pin4 -8,98
Pin5 0,3mv
Pin6 4,1mv
Pin7 5,8mv
Pin8 9,44v

IC4:

Pin1 1,39
Pin2 5,11
Pin3 0,4mv
Pin4 -4,06
Pin5 -8,98
Pin6 2,57
Pin7 1,45
Pin8 9,44

VACT1
Led- 6,10
Led+ 7,84
photores up 6,3mv
Photores down 6,3mv

VACT2
Led- 6,11
Led+ 7,84
photores up 4,1mv
Photores down 4,1 mv

Here's some shots:


(the pots aren't touching the pcb/I removed the insulation to taking some shots)
Any ideas?

Thanks

[mickey.bellinello]

First Update,

I double checked everything... I found that r16 and r22 are 330K instead of 330ohm (received wrong resistors). I'll take a look if I have some right resistor and I'll update you

[SirEgno]

You found the problem.
330k are too large.
In my naughty fish I used 1k2 for R16 and I think is a value near the limit here.

[mickey.bellinello]

You found the problem.
330k are too large.
In my naughty fish I used 1k2 for R16 and I think is a value near the limit here.

Made a try...and now all works! Even this time ... problem caused by a wrong component!
Next time I'll pay more attention even if the part is inside a bag with labeled value etc...

Thanks to all!

[WormBoy]

I always measure every resistor and cap with the DMM before soldering. I am not in hurry, I hate debugging, I don't trust suppliers to not make errors, and I am too colour blind to read resistor codes. 

[mickey.bellinello]

I always measure every resistor and cap with the DMM before soldering. I am not in hurry, I hate debugging, I don't trust suppliers to not make errors,  and I am too colour blind to read resistor codes. 

You're right, I must do the same when I built something...
I found that the resistor was wrong because I see too much orange...