Diagnostic report for a TD payment terminal affected by liquid damage. Focuses on safe handling and external troubleshooting without internal access.
Specify whether the touchscreen, card reader, network connection, or other functions are failing.
Describe any visible stains, corrosion, or residue.
Note the timeframe of disconnection to assess potential internal damage.
Liquid intrusion can cause short circuits, corrosion, and component failure. Coffee, in particular, contains sugars and acids that can accelerate corrosion. The terminal's power supply, communication ports (Ethernet/Serial), and touchscreen controller are all susceptible. Signal attenuation due to contaminants can disrupt EMV chip reading.
Liquid spills near electronic equipment can create electrical shock hazards. Ensure the terminal is disconnected from power (Safe Handling) before any cleaning or inspection. Do not attempt to repair the terminal internally, as this can void the warranty and pose a safety risk. PCI-PTS devices have tamper-evident features; opening them will render them unusable.
Keep beverages away from the terminal.,Use a protective cover or shield to prevent accidental spills.,Train staff on proper handling and cleaning procedures.,Implement a regular cleaning schedule for the terminal exterior using a dry, lint-free cloth.,Ensure proper cable management to prevent strain on connectors.
Check the power adapter's output voltage with a multimeter *after* disconnecting it from the terminal if the terminal fails to power on after drying. A faulty power adapter can mimic liquid damage symptoms. Use a known-good power adapter (with the same voltage/amperage) if available, for testing purposes.