Sanwa KDP10 Instruction Manual page 9

4-3 Checking ON/OFF of the Power
Turn ON-OFF the power to check if the buzzer and LED are
working correctly.
* Refrain from using the product when a failure has been found.
1) Turn the power ON
Press the power slide switch (ON) and identify that the
power indicator is red.
A buzz is heard nine times and the LED starts flashing.
* When the power is turned ON, and a buzz is heard for approx. 4
seconds and the LED flashes slowly, it indicates that the batteries
needs to be replaced.
"5-2 Replacing the Batteries"
2) Turn the power OFF
Press the power slide switch (OFF) and identify that the
power indicator is black.
Power slide
switch
Black
Power OFF
LED
Power
indicator
— 8 —
Red
Power slide
switch
Power ON