Voac Hydraulics Joystick 1 is an industrial hydraulic joystick controller used to translate operator input into proportional valve or actuator signals in heavy‑equipment and process automation systems. Common failure modes for this class of devices include power supply degradation, contact wear on the potentiometer or switch contacts, and insulation breakdown between signal lines due to vibration or thermal cycling. Initial troubleshooting should verify that the unit receives its rated input voltage and ground reference; inspect all wiring harnesses for loose connections, corrosion, or broken traces; then check the joystick’s output signals with a multimeter or oscilloscope to confirm proper voltage swing and proportionality.[oss-gpt-20b]