Verifone V200t unresponsive keypad after syrup spill. Technical diagnosis, safe cleaning procedures, and preventative measures for retail environment.
Isopropyl alcohol (90% or higher) is recommended. Avoid using excessive moisture.
Allow the device to air dry completely, for at least 1 hour, before reconnecting to power.
Contact Verifone support for further assistance. Do NOT attempt to open the device.
The V200t keypad relies on a matrix of conductive pathways. Syrup residue can create insulating layers or short circuits between these pathways, disrupting signal transmission. Signal integrity is further compromised by potential corrosion from the sugar content. The V200t's firmware relies on polling the keypad matrix at a specific baud rate. Interference disrupts this process. Environmental factors like humidity can exacerbate these issues.
Potential hazards include electrical shock if the device is not disconnected from the power supply before cleaning. Improper cleaning methods or excessive moisture can damage the device. Static discharge can damage the device's internal components. Do NOT attempt to open the device as it contains anti-tamper mechanisms which, if triggered, will render the device unusable.
Implement a spill-proof barrier or shield around the terminal.,Train staff on proper cleaning procedures for spills near electronic equipment.,Regularly inspect and clean the keypad to prevent the buildup of grime and debris.,Ensure the terminal's cable is properly routed and secured to prevent strain.,Provide staff with antistatic wrist straps, especially during dry winter months, to mitigate ESD events.
Try using compressed air (from a safe distance) to dislodge any remaining syrup particles from around the keys before using isopropyl alcohol. Avoid direct spraying into connector ports. Check the connector pins for damage with a magnifying glass.