- Quantum II Series DC Drive Repair
- Electrostat 6000 Series DC Drive Repair
- Spectrum Series DC Drive Repair
- Focus II DC Drive Repair
- Electrostat 123 & 125 Series DC Drive Repair
- Electrostat 2300RG Series DC Drive Repair
- ES220ARG Series DC Drive Repair
- Electrostat 200A Series DC Drive Repair
- Focus I DC Drive Repair
- Electrostat 2600RG Series DC Drive Repair
- Focus RG Series DC Drive Repair