FuzzDog Exploder Instruction Manual page 7

Wire it up
BOARD
INPUT
IN
BOARD
BOARD
GND
Wiring shown above will disconnect the battery when you remove the jack plug
from the input, and also when a DC plug is inserted.
The Board GND connections don't all have to directly attach to the board. You
can run a couple of wires from the DC connector, one to the board, another to
the IN jack, then daisy chain that over to the OUT jack.
It doesn't matter how they all connect, as long as they do.
This circuit is standard, Negative GND. Your power supply should be Tip
Negative / Sleeve Positive. That's the same as your standard pedals (Boss etc),
and you can safely daisy-chain your supply to this pedal.
(if using a daughterboard please refer to the relevant document)
BOARD
GND
BOARD
GND
+
9V
BATTERY
BOARD
GND
BOARD
OUT
+
L
E
L
D
E
D
OUT
BOARD
9V