Debugging Queen of Bone

[revisionist]

This is my first pedal. I'm also still rather new to soldering (a few speakers and an amp under my belt).


1.What does it do, not do, and sound like?
   LEDs turn on and off with foot switches.
   No sound out to amp on bypass
   SOMETIMES it will put out noise that almost seems like interference if both switches are on,
        but never anything from the guitar
2.Name of the circuit
   Queen of Bone 2 (bought the PCB and use youtube video)
3.Source of the circuit (URL of schematic or project)
   https://www.rullywow.com/product/queenofbone2/
4.Any modifications to the circuit?
   No Mods
5.Any parts substitutions?
   No substitutions
6.Positive ground to negative ground conversion?
   No
7.Turn your meter on, set it to the 10V or 20V scale. Remove the battery from the battery clip. Probe the battery terminals with the meter leads before putting it in the clip. What is the out of circuit battery voltage?
   I have not tested it using a 9 volt battery. I'm not sure how.
7a.Now insert the battery into the clip. If your effect is wired so that a plug must be in the input or output jack to turn the battery power on, insert one end of a cord into that jack. Connect the negative/black meter lead to signal ground by clipping the negative/black lead to the outer sleeve of the input or output jack, whichever does not have a plug in it. With the negative lead on signal ground, measure the following:
Voltage at the circuit board end of the red battery lead = Dunno how to do this.
Voltage at the circuit board end of the black battery lead = Dunno how to do this.

Now, using the original schematic as a reference for which part is which (that is, which transistor is Q1, Q2, etc. and which IC is IC1, IC2, C1, and so on) measure and list the voltage on each pin of every transistor and IC. Just keep the black lead on ground, and touch the pointed end of the red probe to each one in turn. Report the voltages as follows:



IC1
   1    8.52
   2    8.71
   3    8.65
   5    8.66
   6    9.00
   7    8.41
   8    16.52

IC2
   1    8.46
   2    8.60
   3    7.77
   5    8.49
   6    9.1
   7    8.55
   8    16.53
   
IC3
   1    -3.0
   2    4.48
   3    5.55
   4    9.08
   5    9.08
   6    5.55
   7    0
   8    -2.98

D1   
   A    8.92
   K    8.56

D2   A    8.27
   K    8.37

D3   A    8.43
   K    7.96

D4   A    8.00
   K    8.88

D5   A    8.57
   K    8.45

D6   A    8.55
   K    8.31

D7   A    9.01
   K    8.71

D8   A    8.46
   K    8.4

D9   A    8.41
   K    8.39

D10   A    8.04
   K    8.93

D11   A    8.59
   K    8.08

D12   A    8.51
   K    8.41

D13   A    9.08
   K    13.83

D14   A    13/83
   K    16.53

D15   A    8.91
   K    9.08

LED1
   A    0
   K    2.88

LED2
   A    0
   K    2.62


All help appreciated!
JT

[Slowpoke101]

Welcome to the forum. Hopefully you will enjoy being here.

Your voltages are a bit odd. IC3 pin 3 should be at 0V (zero volts), but it isn't. But other voltages are correct.
From your description of the fault you most likely have a wiring error.
Is there any possibility that you can upload some pictures show both sides of the circuit boards and your wiring?

[revisionist]

I'll take some pictures and upload them tonight. Thank you!

[revisionist]

I just wanted to let you know I got it working. I had to reflow several points and rewire my out 1/4 mono jack but it's working like a charm, though Pin 3 on IC3 is still no 0. Dunno what's up with that.

[fozzy]

Is there a reason why dip switches are used and not external toggles?

[antonis]

 

Other than cost..??

[fozzy]

Yes, besides cost. If you want to change those settings, it seems very time consuming to open up the back each time. Maybe I'm over thinking, and most players only change occasionally?

Thanks,

[antonis]

If you want to change those settings, it seems very time consuming to open up the back each time.

Same time consuming like doing it with internal trimmers..

What is inside an enclosure has to be kept out of sneaky fingers..!