Marshall channel switch

[served]

Hi.

I am building a channelswitch pedal for marshall amp. I need a footswitch with one switch. It should switch channels.
It should have a LED. So I am thinking, there is on/off footswitch and mono cable. Current flows through the cable and switch and LED, if the switch is turned ON. If its is turned OFF, then the circuit is disconnected.

I am not sure I am correct.

Does anyone have a schematic?

[anchovie]

Which amp? If you can find a schematic for that, you can deduce what the footswitch needs to do based on how the amp circuit is hooked up to the F/S socket.

[served]

Amp is MG series. They all should have the same system?

[anti-idiot]

Are you talking about the NEW MG Series (Series 4) or the previous MG Series? The new ones uses a digital footswitch with incorporated tuner and memory bank. The previous line used analog FS (pretty much a cable with a stompswitch).

[served]

Its Marshall MG30FX So I think its not the Series 4 generation amp. But now I don't actually know if I can add LED. Will it work? It might not.

[anti-idiot]

MG30FX is the new series. The previous was MG30DFX. Sorry dude.

[served]

So? No footswitch for this one?

[served]

Hi!

I would like to thank anti-idiot for schematics. Really, thank you!

So I will post some pics and schemes of the build.

The footswitch part and electronics that are inside the amp.


How does the switch work?
If 2 wires are connected Lead-channel is turned on.
If 2 wires are disconnected, Clean channel is turned on.

LED could be connected series to the switch. I didn't do it, because I wanted it to be a sure thing, so I used DPDT switch. One part for LED the other for switching and used a battery.

So now. I used the right one on this schematic pic(uses DPDT switch and a battery). But you could use the left one also.


So happy DIYing.

This is how mine looks like.