Beetle POS reboots during polymer bill payment. Troubleshooting guide focusing on validator issues, cable strain, ESD, and power supply stability.
This helps determine if the PSU is adequate for the system's demands.
Too many devices can overload the power supply.
Incorrect calibration could cause excessive solenoid activity.
The bill validator operates on 24V DC logic, communicating with the POS mainboard via serial communication (likely RS-232 or USB emulation). The validator's solenoids control bill acceptance/rejection. The POS touchscreen relies on stable voltage, and a power dip from validator solenoid activation or ESD can trigger a reboot. Baud rate mismatch or signal attenuation can also cause communication errors.
Beetle POS system experiences an unexpected reboot specifically when a customer attempts payment using a polymer-based banknote.
High voltage is present within the POS system's power supply. Do not attempt to open the POS terminal's casing. Handle the system with care to avoid electrostatic discharge (ESD). Ensure hands are dry when handling the equipment. Always unplug the system from the wall outlet before inspecting cables or performing any maintenance. PCI-PTS devices have anti-tamper sensors; opening them will cause permanent damage.
Regularly inspect the bill validator's cables for signs of wear and tear. Ensure proper cable management to prevent strain.,Clean the bill validator's exterior surfaces periodically to prevent dust buildup. Refer to the manufacturer's instructions for approved cleaning methods.,Consider using a UPS (Uninterruptible Power Supply) to provide a stable power source and protect against voltage fluctuations.,Implement ESD control measures, such as grounding mats and anti-static wrist straps, especially during dry winter months.,Keep the touchscreen clean using a manufacturer-approved cleaning solution to prevent erratic behaviour and ensure accurate input. Touchscreen issues can sometimes mimic other hardware failures.,Check for and install any available POS and bill validator firmware updates.
A failing or under-rated power supply is a common cause of intermittent POS issues. If the problem persists, monitor the 24V DC rail supplying the bill validator with a multimeter during bill insertion. Significant voltage drops (e.g., below 23V) confirm a PSU issue. Also, try using a USB isolator between the bill validator and the POS to mitigate potential ESD issues through the data connection. Alternatively, try a different power outlet on a different circuit.