Amplified Design International, Inc. WHITE GREY 1. SEPERATE THE CONNECTION OF THE RED AND GRAY WIRES COMING FROM THE TRANSFOMER (RED AND GRAY WIRES TIED TOGETHER FOR 220VAC OPERATION). 2. CONNECT RED WIRE FROM TRANSFORMER TO "P2" ON THE POWER SUPPLY PCB. (PURPLE WIRE FROM TRANSFORMER IS ALSO CONNECTED TO "P2" TERMINAL). 3. CONNECT GRAY WIRE FROM TRANSFORMER TO POWER CORD WHITE WIRE (POWER CORD WHITE WIRE IS ALSO CONNECTED TO WHITE WIRE FROM TRANSFORMER). 4. INSTALL A 5 AMP FUSE FOR THE MODEL 400A INSTALL A 10 AMP FUSE FOR THE MODEL 600A, 600LX NOTE: WHEN THE OPERATION IS COMPLETED 2 WIRES (RED & PURPLE) WILL BE CONNECTED TO "P2", AND 2 WIRES (GRAY & WHITE) WILL BE CONNECTED TO THE AC POWER CORD WHITE WIRE.