D3lay not affected

[uptown_sniffer]

When playing guitar through the pedal the mix and level knobs affect the signal, but the others do not. The non-audible pots measurements change when they are rotated. There is no audible oscillation. The FV-1 seems to have normal voltages. Is there a signal path I can probe to solve this wacky mystery? Any perspective is appreciated. I am aware that I need to clean up the soldering and leads.

 

[swelchy]

is your 15pf a tantalum/polarized?.. better pics from other angles and the back of your board will be required for further advice.

 

[Locrian99]

is your 15pf a tantalum/polarized?.. better pics from other angles and the back of your board will be required for further advice.

I think thats an mlcc not a tant.

 

[swelchy]

I think thats an mlcc not a tant.

likely but suspect since he has a clock issue

 

[phi1]

I would use an audio probe to check for signal at the fav-1 input pin (pin1, top left) and output (28, top right).

 

[uptown_sniffer]

I would use an audio probe to check for signal at the fav-1 input pin (pin1, top left) and output (28, top right).

I get clean guitar at pins 1 and 2. Nothing audible after that.

 

[uptown_sniffer]

likely but suspect since he has a clock issue

How would I go about testing this?

 

[uptown_sniffer]

is your 15pf a tantalum/polarized?.. better pics from other angles and the back of your board will be required for further advice.

 

[phi1]

You can also access the programs built into the FV-1 by grounding pin13. you can do this by slidering a wire onto whichever side of R5 connects to pin13 and grounding that wire.

This would get you the patches 0, 1, and 2 listed here (depending on toggle switch position).

 

[swelchy]

your aware that all of the pcb's here are designed to have pcb mounted pots right?

 

[jwin615]

your aware that all of the pcb's here are designed to have pcb mounted pots right?

There been a definite frequency in the troubleshooting threads lately. Is this a Reddit trend or something? Wire surplus?
Anyway, OP:
Ground the eeprom pin as previously discussed. If it's still no dice/dry only, verify your oscillator is oscillating. Either with a scope or a DMM that will count frequency.
If you have 3.3v, no internal program output and a proper clock, your fv-1 is bad.
If internal programs work, your clock and fv-1 are good but there's an issue with your eeprom.
If nothing works, including your clock, your clock is bad.

 

[Guardians of the analog]

This is not to be mean, but most of the solder joints like cold and rough and it looks like the board is soaked in flux. The joints on the legs of the fv-1 look very suspect. I would reflow everything and clean the board