There a 4 modes: TIME, DATE, COUNTUP, COUNTDOWN. Button A cycles between these 4
modes.
In the TIME mode the hours and minutes are displayed (hH:MM), with a blinking ':'.
The B button starts time editing. The C button starts alarm editing.
While editing time all digits are blinking except one.
Button B selects the next digit.
Button C changes the digit's value.
Button A cancels editing.
When the last digit is selected and button B is pressed, the time is set and the
TIME mode is selected.
While editing alarm all digits are blinking except one. Additionally, a green
LED is blinking.
Button B selects the next digit.
Button C changes the digit's value.
Button A cancels editing.
When the last digit is selected and button B is pressed, the alarm is set and the
TIME mode is selected.
To remove an alarm go into the alarm edit and just go through all the digits
without changing any values.
The green LED indicates an active alarm.
At alarmtime "ong" is blinking. Additionally, a 4kHz sound is beeping or not.
Pressing any button turns the alarm off.
In the DATE mode the date is displayed (dD.MM) for 3 seconds and the year (20YY)
for 1 second.
The B button starts date editing. The C button starts year editing.
While editing date all digits are blinking except one (or two).
Button B selects the next digit.
Button C changes the digit's value.
Button A cancels editing.
When the last digit is selected and button B is pressed, the date is set and the
DATE mode is selected.
While editing year all digits are blinking except one.
Button B selects the next digit.
Button C changes the digit's value.
Button A cancels editing.
When the last digit is selected and button B is pressed, the year is set and the
DATE mode is selected.
In the COUNTUP mode the counted time is displayed (mM:SS)
Button B starts and stops the counter.
Button C resets the counter
In the COUNTDOWN mode the counted time is displayed (mM:SS). But before that, the
start point must be selected.
While editing the counter point all digits are blinking except one. Additionally,
the LEDs in the ':' are blinking downwards.
Button B selects the next digit.
Button C changes the digit's value.
Button A cancels editing.
When the last digit is selected and button B is pressed, the counter is set and
the COUNTUP mode is selected.
Button B starts and stops the counter.
Button C starts counter editing
When 0:00 is reached "o:ng" is displayed. Additionally, a 4kHz sound is beeping
or not.
When the A button is pressed while turning the device on, the CALIBRATION mode
is entered. Only use it if the clock runs too slow or too fast. It adjust's the
clock's speed. It's a hexadecimal value, from -0xff to +0xff. -0x00 and +0x00
mean the same. The default value is 0. If the internal battery is replaced, the
calibration maybe reset to a random value. Set it then.
The value (-XX or XX) is displayed.
Button B starts editing.
Button A selects TIME mode.
Button C does nothing.
While editing the calibration point all digits are blinking except one. The '-'
is also a "digit".
Button B selects the next digit.
Button C changes the digit's value.
Button A cancels editing and selects TIME mode.
When the last digit is selected and button B is pressed, the counter is set and
the CALIBRATION mode is selected.