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rcartier If you look at the picture of the product, you will see a black jumper in the SW socket... It should have been installed already. it serves as a permanently ON setting. If that jumper is missing from your device, then you either have to install a switch connected to those pins, or you can use a jumper from an old computer hard drive. (Jumpers like that one were used to identify which was Master and which was Slave when 2 hard drives were used in older Windows systems. if you don't have an old drive, ask anyone you know who has an old computer in the closet.) If you use an external switch, you can either remove the socket or solder your wires from the back of the PCB. Hope this helps!
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