Poynt terminal blank screen diagnostic. Possible causes: cable strain, power supply issues, firmware corruption. External troubleshooting steps provided.
Check the device purchase date and Poynt's warranty policy.
Document any incidents that may have contributed to the failure.
If yes, investigate potential power supply or environmental factors affecting multiple devices.
The Poynt terminal's display backlight is typically powered by a dedicated voltage rail derived from the main power supply. Failure can stem from insufficient voltage reaching the backlight driver IC, a fault within the driver IC itself, or a corrupted display firmware segment. Signal attenuation in the display cable or ESD damage to the display panel are also potential factors.
The Poynt Terminal displays a blank screen. The backlight is not illuminated, indicating a complete lack of display output.
Avoid using excessive force when connecting or disconnecting cables. Do NOT attempt to open the terminal's casing, as this will void the warranty and potentially damage the device's anti-tamper mechanisms. ESD can damage electronic components; ground yourself before handling any cables.
Ensure the power cable is routed to avoid strain or sharp bends.,Regularly clean the terminal screen with a soft, dry cloth to prevent static buildup, particularly during dry winter months.,Consider using a surge protector to protect the terminal from power fluctuations.,Implement proper grounding techniques in the checkout area to minimize ESD risks.
In some cases, a momentary power surge can corrupt the display controller's memory. If the screen remains blank after a reboot, try leaving the terminal unplugged for an extended period (e.g., overnight) to allow any residual charge to dissipate completely. Then, attempt a reboot.