I'm currently doing the switch/LED replacement, double preset and looper mods on my DL4. Everything works fine with the exception of the double preset mod.
In double preset mode, if i change the delay time, the delay is a weird, warbly, digital interference sound. It's basically the same sound you get when you're turning the delay time knob...but it never goes away.
I've plugged in an expression pedal and it seems to do the same thing...however, for the expression pedal to work i have to have my double preset mod button turned on.
Any ideas on what i did wrong?
Here are a few pics (all white wires is the double preset switch, red wires is the looper mod switch) Switches are DPDT with LEDS. Power and ground for the looper mod switch are coming from the double preset switch.