SOLVED Kentauride No Sound

[joelorigo]

I have an Effects Layouts Kentauride that I have finished but there is so sound in either bypass or effects. This is the first time I've had this specific issue; could someone tell me what is the first thing to do? (Photos included)

Bellow are links to the project and the build doc.

KENTAURIDE – Effects Layouts

http://effectslayouts.com/wp-content/uploads/2021/12/Kentauride-build-doc-v2.pdf

 

[joelorigo]

Quick audio probing question. If the schematic has one side of the component to ground, the signal should only be coming from one side? As in R1 in the attached schematic? And if the signal passes through, both sides of the probe should have signal? As in C1?

Also I think I have been doing it wrong all along. I dont think I had the TS side footswitch in the "on" in my previous test. I am using the probe and I have it "on" now and I am getting signal to R1, C1, R2, C2, etc.

 

[jimilee]

Wait, are we working on the klon side? That thing is buffered bypass. Have a look at the diagram in the BOM. You don’t have to have a Dpdt in which case you would want to wire it 1-4, 2-5, 3-6.

 

[joelorigo]

No the Klon side is ok, we are dealing with TS side.

 

[jimilee]

No the Klon side is ok, we are dealing with TS side.

Cool.

 

[jimilee]

Quick audio probing question. If the schematic has one side of the component to ground, the signal should only be coming from one side? As in R1 in the attached schematic? And if the signal passes through, both sides of the probe should have signal? As in C1?

Also I think I have been doing it wrong all along. I dont think I had the TS side footswitch in the "on" in my previous test. I am using the probe and I have it "on" now and I am getting signal to R1, C1, R2, C2, etc.

Yes and yes.
Also, happens to the best of us.

 

[joelorigo]

OK thank you, sorry for being such a noob everyone! At least now I understand a bit more about the audio probing process!

I have the TS side footswitch in the on position, I am probing and getting signal and jumping ahead based on the schematic and I have l found that I get signal on both sides of C9, but only one side of R16, the top side specifically. So there's problem there, no?

 

[music6000]

OK thank you, sorry for being such a noob everyone! At least now I understand a bit more about the audio probing process!

I have the TS side footswitch in the on position, I am probing and getting signal and jumping ahead based on the schematic and I have l found that I get signal on both sides of C9, but only one side of R16, the top side specifically. So there's problem there, no?

Have a look under the Pot & see if there is anything in that C9, R16 area ie stray solder blob, debris?

 

[joelorigo]

Have a look under the Pot & see if there is anything in that C9, R16 area ie stray solder blob, debris?View attachment 46533

Good morning!

I dont see any thing like that in the area. And there is no signal on either side of R17.

 

[music6000]

Good morning!

I dont see any thing like that in the area. And there is no signal on either side of R17.

So it stops on this Green Dot?

 

[joelorigo]

Yes. Should I re-flow that pad?

 

[music6000]

It would be a good idea.
Can you check for Continuity at that Green pad & R17 next to it?
Don't melt the Plastic Pot cover underneath!

 

[joelorigo]

It would be a good idea.
Can you check for Continuity at that Green pad & R17 next to it?
Don't melt the Plastic Pot cover underneath!

There is continuity between those 2 pads. Should there be?

 

[music6000]

There is continuity between those 2 pads. Should there be?

Yes, that's good, you can see the Trace in the picture above ^
Either you have a dud 470ohm resistor or that Solder is no good!

 

[joelorigo]

Yes, that's good, you can see the Trace in the picture above ^
Either you have a dud 470ohm resistor or that Solder is no good!

Oh I see. I just re-flowed the pad and still the same. I guess I should try replacing the resistor?

 

[music6000]

Oh I see. I just re-flowed the pad and still the same. I guess I should try replacing the resistor?

Can you test Continuity to see if that Green pad is going to Ground when pedal is ''ON''
Power Unplugged

 

[joelorigo]

Can you test Continuity to see if that Green pad is going to Ground when pedal is ''ON''
Power Unplugged

I have replaced the resistor. Still only getting signal at the top pad with the audio probe. Ugh, I thought that would be it. I mean I was HOPING that would be it.

There is continuity between that pad and ground when pedal is on, power unplugged. Should there be?

 

[music6000]

I have replaced the resistor. Still only getting signal at the top pad with the audio probe. Ugh, I thought that would be it. I mean I was HOPING that would be it.

There is continuity between that pad and ground when pedal is on, power unplugged. Should there be?

Is there continuity between R17 Bottom & Top pads with power unplugged?

 

[joelorigo]

Is there continuity between R17 Bottom & Top pads with power unplugged?

Yes

 

[music6000]

Can you do a continuity test from R16 or R17 Bottom pads to Footswitch Pin 7?

 

[joelorigo]

Can you do a continuity test from R16 or R17 Bottom pads to Footswitch Pin 7?

There is continuity between pin 7 and both pads of R17, and pin 7 and the bottom pad of R16.