Baja Sagittarian - switch pop  [SOLVED]

Forum dedicated to helping people debug and troubleshoot non-functional pedals or builds. Please use an clear and informative title, indicating circuit and basic problem. Don't forget to mark the issue as fixed if this is the case.
Post Reply
User avatar
DjPsychic
Breadboard Brother
Information
Posts: 147
Joined: 07 Feb 2020, 21:35
Has thanked: 85 times
Been thanked: 48 times

Post by DjPsychic »

Hey all,

I've got an older Baja Sagittarian made by "Mojo Pedals" that has a pretty bad switch pop. Would soldering a pull down resistor between the switch and PCB input wire work?

Thanks :)
IMG_7825.jpg
IMG_7826.PNG

User avatar
Manfred
Tube Twister
Information
Posts: 1936
Joined: 04 Apr 2009, 23:42
Has thanked: 1668 times
Been thanked: 1344 times

Post by Manfred »

To test, unsolder the wire from the switch terminal to the LED cathode to see if the pop is coming from the LED.

User avatar
jimilee
Information
Posts: 29
Joined: 02 Mar 2013, 03:18
Has thanked: 50 times
Been thanked: 1 time

Post by jimilee »

You can use a 1M resistor (pulldown resistor) across the input tip and ground.

User avatar
Intripped
Cap Cooler
Information
Posts: 670
Joined: 25 Aug 2009, 01:03
Location: Italy
Has thanked: 985 times
Been thanked: 305 times

Post by Intripped »

jimilee wrote: 27 Nov 2022, 04:46 You can use a 1M resistor (pulldown resistor) across the input tip and ground.
It works, but in this way the 1M resistor is always connected to guitar signal, even in bypass.
You should put that resistor directly on the PCB, across the IN pad and ground.
Or, on the 3pdt switch, across the pin connected to IN of PCB, and ground (pay attention, 3pdts are quite delicate and you don't want to apply too much heat on the pins. The risk of melting is high)

Post Reply