I had to replace the green module in a RGB projector. Quite the undertaking in this particular box but, going from a 1 watt Viasho that died and replacing it with a 1 watt DHOM I had laying around. The existing wiring inside the case from the DZ(Stanwax) color correction board to the various modules was not color coded for red and black. It was just old grey ribbon cable. I don't see any printing on the correction board indicating positive or negative coming out. The DHOM does have a modulation leads with red and black for positive and negative so I need to wire those leads to the unmarked grey wires previously going to the Viasho. Am I going to damage anything if I accidentally put positive to negative and negative to positive to test and determine which way they go to send the signal to the driver? I don't "think" so but... better to measure twice and cut once.