09-12-2014, 03:07 PM
Two go to the chassis to power the voltage for the tone arm bulb, and 2 go to the screw tabs next to the phono imput where the pre-amp plugs in. Hopefully that helps. If you do not know which "2". just keep switching them until you find the 2 that light up the bulb(assuming your bulb is good), and then you will have the other 2 for the amp. If the bulb is shot, pm me as I may have an original and I definitely have another bulb that works just as good.