I recently bought an IJ and I'm working on getting a jackpot light board setup. A previous owner was kind enough to have cut-out the shapes for the board, so I thought I'd just need to install the lights again.
However, when I went to install the board last night, I found that something was already plugged into J135. It was only using a single connector instead of the three for the jackpot board. It was wrapped around another single wire that was plugged into J136, which the manual says is for a coin door lamp. I tried following these two wires, but they started to get wrapped up in even more bundles and before long, it just gets lost in the bundle going down to the playfield. Does anyone know what this might have been running to? I'd have to check again, but I think it was a red and grey wire. The manual said there is supposed to be another red/grey wire in J133, but I'm pretty that one is present in the correct location
I have the old J135 wire unplugged for now and I haven't noticed anything different, so it's a mystery to me for now.