Panel Switch-defeat + LEDs on all states solved!

[Blakkwater]

The other thread seems to have died, I keep getting an error 500.

So here's my solution.

I wanted to accomplish two things:
1) LEDs on the footswitch active on both "on" and "off" states. Ie clean channel green LED, dirty channel red LED.
2) Plugging in the footswitch cable renders the front panel switches inactive.

The keys to making this work are:
1) Unlike a lot of amps' footswitches where the switch "off" state means the LED on the footswitch is off, to have an LED on during an off state means you have to route the power separately from the grounding line of the relevant relay.
2) Let's say your amp functions are being controlled by a set of relays. Let's call this Set A. We are going to route the grounding lines for those relays to another set of relays, Set B. We'll need to route the grounding lines for Set B to the footswitch, and use either the footswitch cable or the jack on the footswitch itself to short the Set B grounding lines to ground. This way, when no footswitch is plugged into the amp, the ground lines for Set A are routed to the front panel switches. When the footswitch is plugged in, the short triggers the Set B relays such that the Set A ground lines are now routed to the DPDT switches on the footswitch, and the front panel switches are taken out of circuit.

I am going to use a 7pin XLR jack/cable to accomplish this so that I can run the following signals:
1- Shield
2- Master Vol 1/2 (set A)
3- Mid boost (set A)
4- Channel (set A)
5- V+ for LED's on footswitch
6- ground line for 2 relays (Set B)
7- ground

[acheld]

You'll certainly make Omron happy!   

Looks good.