Nako Na-617a User Manual Updated -

Ensure the battery is inserted with the correct polarity. If it still fails, replace the battery with a fresh one.

Press to toggle between adjusting the hours and minutes. Press D (Start) to set the desired alarm time. Press M (Mode) to save and exit. Enabling/Disabling the Alarm

The seconds will start flashing. Press D (START/DATE) to reset the seconds to zero.

If the device freezes, removing the battery for 10-15 seconds and reinserting it can act as a hard reset. Nako Na-617a User Manual

Secure the back casing tightly to preserve defensive dust and humidity resistance.

Nako NA-617A is a compact, battery-powered digital clock designed primarily for use in vehicles (cars, lorries) or as a small desk accessory. It features an LCD display that shows the time, date, and includes alarm and stopwatch functions. Core Features & Specifications

Occasionally wipe the unit with a dry, soft cloth. Avoid using water or strong chemical cleaners to maintain the matte finish. 7. Troubleshooting Ensure the battery is inserted with the correct polarity

Press the button three times until the seconds digits start flashing. Press the START button to reset the seconds to zero.

Use the START button to change the value, and use the SET button to cycle between the Month, Day, and Day of the Week.

If the screen characters begin fading, or if the clock begins losing time, it is time to replace the internal coin cell battery. Press D (Start) to set the desired alarm time

Disclaimer: The operational instructions above are based on common manufacturer configurations for this model, but some variants may have slight differences.

A: An error code (e.g., "ERR") is not a standard message for a basic clock. If you see a code, it is likely a generic indicator that the internal processor has encountered an error. The best solution is to perform a reset. If you are using a 12V power source, unplug the device, wait a minute, and plug it back in. If using batteries, remove them, wait, and reinsert them. This should clear any minor software glitch.