[Solved, fixed, et al] Naughtyfish not behaving....

[Willybomb]

Gudday all.

I've got a Naughtyfish populated here, and it all seems to work except for the actual effect.  I can hear plenty of signal and the tonality changes with the switch flips and knob turns, but there's just no mutron going on.  The best I can get is a trebly sort of cocked wah sound.

I'm using a pair of Xvive VTL5C3 that I got off ebay after I got the same results with my LED/LDR home rolled ones earlier.

I've gone around and resoldered what I thought might be dodgy and cleared up some possible bridges a couple of times to no result.

It's a shame because I have a sweet enclosure already made up for it (it's been mounted already, but removed when the new vactrols didn't work).

Voltages are:

Power supply: 9.27v

IC1:
4.9mv
4.9mv
.3mv
-8.56v
4.8mv
14.2mv
2.6mv
8.94v

IC2:
8.65v
3.43v
3.45v
-8.54v
-8.54v
4.06v
3.43v
8.99v

IC3:
2.7mv
1.9mv
0.4mv
-8.56v
0.4mv
2.7mv
14.6mv
8.99v

IC4:
1.2v
4.9v
0.5mv
-3.8v
-8.54v
2.54v
1.4v
9v

[madbean]

IC2 seems to be a problem area. I'd take that one out and measure voltages in the socket, specifically pins 1, 2 and 3 to see what you get.
Couple of your switch lugs are tack soldered which might be okay, but I'd maybe reflow with more solder or check for continuity between the existing solder and the pads around them.
Soldering on the bottom looks pretty good.

[Willybomb]

Thanks.

I took the chip out and got these:
-3.14
-2.81
~ 0.02mv fluctuating
-8.57
-3.42
-1.63
0.3mv
8.99v

I put the chip back in and got:
-0.24
0.17
0.17
-8.04
-7.94
-0.42
4mv
8.95

Which is different again to what I've been getting. I didn't change anything between this and my iriginal post as far as controls go.

[Willybomb]

Ok, so I've chucked a 4558 that I had lying around in IC2, and it's now working as it should. 

Thanks for the help,

Willy.