Andromeda build not working

[Wthamrick2]

Finished an Andromeda kit (my 4th pedal build) and it's not functioning. Bypass works fine. LED lights up when clicking foot switch, and hiss increases when turning up either the Level or Drive knobs. But no output other than that hiss when engaged.

Here's the build info.

https://aionfx.com/app/files/docs/andromeda_kit_documentation.pdf

Ideas on what I should start checking? Thanks in advance.

[idy]

So the output is hooked up to your foot switch/out jack.
Maybe the input is not.
I would, power off, confirm continuity from input jack to input of pcb.
After that I would make a single tracer (cap attached to a cable) and start...tracing signal.

[tootsMcgee]

Finished an Andromeda kit (my 4th pedal build) and it's not functioning. Bypass works fine. LED lights up when clicking foot switch, and hiss increases when turning up either the Level or Drive knobs. But no output other than that hiss when engaged.

Here's the build info.

https://aionfx.com/app/files/docs/andromeda_kit_documentation.pdf

Ideas on what I should start checking? Thanks in advance.

Welcome!

Hiss but no output sounds kinda like there's no signal reaching the opamp.

Level knob is near the end so that's working...go backwards...drive/gain knob is hanging off the first opamp. Does the Bass knob change the character at all of the hiss? How much does the Drive knob change the hiss?

I'd check around Q1 and make sure all those components are soldered correctly, and in the case of Q1 make sure it's not backwards...

Do you have an audio probe available?

You could also check to make sure the footswitch isn't grounded out...I did that once by bridging solder joints on accident and it was very very very annoying to unsolder and fix.

[Wthamrick2]

Finished an Andromeda kit (my 4th pedal build) and it's not functioning. Bypass works fine. LED lights up when clicking foot switch, and hiss increases when turning up either the Level or Drive knobs. But no output other than that hiss when engaged.

Here's the build info.

https://aionfx.com/app/files/docs/andromeda_kit_documentation.pdf

Ideas on what I should start checking? Thanks in advance.

Welcome!

Hiss but no output sounds kinda like there's no signal reaching the opamp.

Level knob is near the end so that's working...go backwards...drive/gain knob is hanging off the first opamp. Does the Bass knob change the character at all of the hiss? How much does the Drive knob change the hiss?

I'd check around Q1 and make sure all those components are soldered correctly, and in the case of Q1 make sure it's not backwards...

Do you have an audio probe available?

You could also check to make sure the footswitch isn't grounded out...I did that once by bridging solder joints on accident and it was very very very annoying to unsolder and fix.

Thanks, I'll start checking these.

[Wthamrick2]

So the output is hooked up to your foot switch/out jack.
Maybe the input is not.
I would, power off, confirm continuity from input jack to input of pcb.
After that I would make a single tracer (cap attached to a cable) and start...tracing signal.

Thanks, makes sense. I'll see what I can find...

[Phend]

"You could also check to make sure the footswitch isn't grounded out...I did that once by bridging solder joints on accident and it was very very very annoying to unsolder and fix."

In such a case it is easier to bite the bullet and toss it out and start a new fresh footswitch.
Ah crap more scrap, but less heart burn.