Here is the manual.
http://cartoys.com/cartoy/pdfs/cdm9801_manual.pdf1 In the Clock priority mode, press and hold the
DISP button for at least 3 seconds while the
time is displayed. The time indication will blink.
2 Turn the Rotary encoder to adjust the hours
while the time indication is blinking.
3 When the hour has been adjusted, press the
Rotary encoder.
4 Turn the Rotary encoder to adjust the minutes
while the time indication is blinking. The time is
automatically set 5 seconds after the minute
adjustment. The time can also be manually set by
pressing the Rotary encoder.
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