How do I change the wiring from a FP410E(220v) to a FP410(110v)?
1) Remove jumper X113 from the main printed circuit board.
2) At selector switch S108, solder a jumper wire between holes 1 and 2.
3) At selector switch S108, solder a jumper wire between holes 3 and 4.
4) Replace the 50 mA fuse with a 100 mA slow blow fuse.
5) Replace the external AC power cord with the proper cord for 110 VAC operation.