14
Rev 9 2022
Maintenance & Repair Fuses
There are two fuses located in the 555e series machine. One fuse is accessible and located on the connector plate,
outside of the machine above the power connector. Another fuse is located on the controller board just aer the power
connector and below the transformer.
Tools needed:
• Flat head screwdriver
• Phillips head screwdriver
To change the fuse on the connector plate (part number ST-2341K)
1. Unscrew the fuse holder (Figure 16-1) (at head screwdriver)
2. Remove old fuse and discard
3. Replace fuse with new one
To change the fuse on the controller board (part number ST-2128)
1. Remove the le side cover (Philips head screwdriver) by removing 5 screws (Figure 16-2)
2. Unplug keypad ribbon(Figure 16-3)
3. Remove old fuse with at head screwdriver and discard (Figure 16-4)
4. Replace fuse with new one
5. Plug keypad back in
6. Replace le side cover
Figure 16-1
Figure 16-2 Figure 16-3 Figure 16-4
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