^ Ah, good to know. It must be the LED then. I poked around on Reichelt but it appears the original link above was for a green LED (picture is orange but text says green) whereas this link gives the orange one.
http://www.reichelt.de/LEDs-Special-…
I went and checked some more things. I pressed the trigger buttons 1 and 2 so both LEDs would receive power. LED 1 is receiving 5v while LED 2 is receiving 2v. So hoho, there's the problem it would seem. I checked RR2 which LED 1 is connected to…