MPA-101 100-Watt (320-2039) Replacing the Fuse Faxback Doc. # 14625 PA Amplifier Caution: Be sure you unplug the amplifier before you replace the fuse with an identical 3-amp, 250-volt fuse, such as Cat. No. 270-1009. Follow these steps to replace the amplifier's fuse. 1. Insert a Phillips screwdriver into the slot on the fuse holder cap, then rotate it counterclockwise. 2. Remove the fuse holder. 3. Replace the fuse. 4. Replace the fuse holder. (SP/all-04/20/95)