VDO Cyclecomputing C4 Instruction Manual page 38

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to have it checked.
Press any key. The text "BIKE CHECK" will disappear again
After further 50 km/mi the Service-Interval-Indicator symbol (wrench) will also disappear.
6. Sleep-Mode
Your VDO-Computer features a sleep mode function to save battery power. During Sleep
C1
Mode the major portion of your display is shut down to save battery power. Only the clock,
C2
C3
the Service-Interval-Indicator (if applicable) and the TIMER symbol (if activated) are displayed.
C4
a. The computer will go into Sleep-Mode when no speed impulses have been processed for
5 minutes and no key has been pressed during that time.
b. Sleep-Mode is cancelled once speed impulses are processed (you start riding) or any key
is pressed.
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