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Honeydripper problem solving

Started by KMRO, April 13, 2019, 04:53:16 PM

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KMRO

I finished the honeydripper and I'm struggling. 

The LED comes on, but no sound through pedal either with the footswitch engaged or not.

Here are some photos:
https://imgur.com/m0bfxoB
https://imgur.com/eYzA8Lz
https://imgur.com/GGkm952
https://imgur.com/kBEblsl

I'm curious if I wired the input/output jacks incorrectly?  Is Jack 1 input?  I've been using a stereo jack for inputs.  Do I need to do something with the ring connection?

Did I miss a ground opportunity?  I've been running a wire from the output sleeve to the enclosure (visible in pic 1). 

Any suggestions or help would be appreciated. 

KMRO

Examined this pretty closely today.  Went over every soldering joint with a magnifying glass and carefully re-did everything that seemed suspect.  I also didn't feel that confident with the ground, so I drilled a hole and ran a bolt through the side of the enclosure.  Now I'm grounding jack 2 with a solid connection.  Still get LED when I hit the switch, but no sound. 

I guess that is not totally true, I get a very quiet sound that changes subtly when the 4-way switch is turned.  Which makes me think that there is something simple afoot. 

KMRO

I continue to try to trouble shoot this project, but I'm planning on buying another copy of the PCB and starting again.  This was a good chance to learn how to use the multimeter. 

Power at DC plug: 9.45
Ground at board: 0
9v at board: 9.45

Below are my IC readings.  If any of the reading seemed divergent from the expected readings in the build guide, I noted the expected reading in parentheses. 
IC1: 4558
1 - 5.1
2 - 5.1
3 - 5.1
4 - 0
5 - 5.1
6 - 5.1
7 - 5.1
8 - 17.36

IC 2:LM324
1 - 5.1
2 - 5.1
3 - 5.1
4 - 17.3
5 - 5.1
6 - 5.1
7 - 5.1
8 - 5.3
9 - 5.1
10 - 5.1
11 - 0
12 -5.1
13 - 5.1
14 - 5.27

IC 3: LM324
1 - 5.1
2 - 5.1
3 - 5.1
4 - 17.4
5 - 4.94
6 - 5.1
7 - 4.8 (divergent 38mV)
8 - .57 (divergent 5.25)
9 - 2.83
10 - 2.83
11 - 0
12 - 2.83
13 - 2.83
14 - 2.4 (divergent 35 mV)

IC4: 13700
1 - .57 (divergent 35mV)
2 - 1.39
3 - 5.1
4 - 5.1
5 - 5.1
6 - 0
7 - .12
8 - 2.17
9 skip
10 skip
11 5.1 (divergent 17.52)
12 - 5.1
13 - 5.1
14 - 17.3
15 - skip
16 2.2 (divergent .44)

IC5: 1054
1 - 2.3
2 - 4.9
3 - 0
4 - 0 (divergent 28 mV)
5 - 9.1 (divergent 0)
6 - 1.3 (divergent 2.43)
7 - 2.4
8 - 0 (divergent 9.18)

Thanks for the consideration. 

KMRO

Fixed it!  This is the greatest moment of my middle-aged life.  I built the wolfshirt and had no volume despite getting an LED and a sense that I had built it correctly.  Sadness.

So I replaced the stereo jack with a regular switchcraft style mono jack and the wolfshirt worked.  I wondered if the same fix would solve the honeydripper and tadaaaa . . . wah wizardry.  My suspicion is that the stereo jack wouldn't trigger audio in from a mono cable or something like that. 

I know that none of you care, but the ability to trouble-shoot my own stuff is a great feeling.  And having two working pedals tonight instead of another failure project is really joyous.  Now I just gotta figure out why the wolfshirt won't give me a clean signal when off . . .

Cheers to ya!

selfdestroyer

Quote from: KMRO on May 09, 2019, 03:38:11 AM
I know that none of you care, but the ability to trouble-shoot my own stuff is a great feeling.  And having two working pedals tonight instead of another failure project is really joyous.

It is a great feeling... and we do care :]

jimilee

It makes you feeling amazing. Makes it more frustrated when you can't figure out the next one.
I had the same type of problem with transistors.


Sent from my iPhone using Tapatalk
Pedal building is like the opposite of sex.  All the fun stuff happens before you get in the box.

KMRO

I didn't mean to sound petulant.  I was just thinking about future people who are struggling with the Honey Dripper, searching this thread and finding that I had used the wrong jacks which wouldn't help them.  Shout out to all the week-day soldering peeps tho!  And to madbean, the founder of the feast.

Leevibe

Congrats! I feel relief and maybe a hint of surprise every time a circuit works.