15Appendix C: Changing the VX3500 Voltage1151151152301: Insert a small screwdriv-er into the slot beneath thefuse sled and gently pressin and up. The fuse sled willpop out approximately 3/8"inch.2: Remove fuse sled.3: Use a small pair ofneedlenose pliers togently pull out themains jumper.4: Use the needlenose pliers to reversethe mains jumper so that the othervoltage value is facing outwards, thenreinsert the mains jumper. Finally,reinsert the fuse sled by gently pushingit back in until you hear a click.Note that the fuse sled carries two fuses—one for 115 volt operation (actually 105 - 120 volts) and another for 230 voltoperation (actually 220 - 240 volts). The position of the two fuses in the sled as well as the fuse ratings must bemaintained for adequate protection. Fuse ratings for the Model 2000 are: 5 amp for 115 VAC and 2.5 amp for 230VAC. Fuse ratings for the Model 3500 are: 8 amp for 115 VAC and 4 amp for 230 VAC.Following are step-by-step instructions for changing the mains voltage of the Model 2000/3500.WARNING: Before carrying out this operation, remove the power cord!