Replacing The Batteries - Shimano FlightDeck SC-7900 Service Instructions Manual

out pairing operations for any other unit which
has not yet been paired.
* Do not press the set button (exit▼) until
pairing has been completed for all units.
(6) Repeat steps (3) and (4) for each unit until all units have been paired.
(SM-EW79F-E/I)
* The st-R and st-L (ST wireless units) are optional.
* The ST wireless units will start operating once bot the left and right
units have finished being paired. They will not operate only by
themselves.
(7) Once pairing has been completed for all units, press the set button
(exit▼) to exit the pairing operation.
* If multiple SC-7900 users carry out pairing simultaneously, the units
for other users may become paired with your own system.
In order to make sure that pairing is carried out correctly, do not
carry out pairing near any other users who are also carrying out
pairing, or near any other devices which may operate wirelessly.
* After pairing has been completed, each user should check to make
sure that pairing has been carried out correctly.

5. Replacing the Batteries

Insert so that the + side is facing upward as shown in the illustration, and
then close the battery cap.
■ Main unit
Battery used: CR2450 (x1)
In order to increase the operating life of the battery, it is
recommended that you set the main unit to sleep mode after use so
that it consumes less power. (For details on sleep mode, refer to
page 19.)
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(SM-SC79)
CAUTION:
• Always be sure to set the main unit to sleep mode
before replacing the main unit battery.
• If you replace the battery without setting the
main unit to sleep mode first, the main unit will
start up in initialization mode.
* For details on initialization mode,
refer to page 20.
• If the low battery indicator appears in the main
unit display, replace the battery with a new one
straight away.
• If carrying out pairing between the main unit and the other units,
batteries must be inserted into the other units too.
* Refer to page 11 for details on pairing.
The batteries for units other than the main unit should be inserted
when the units are being paired.
■ Speed sensor
Battery used: CR1632 (x1)
CAUTION:
• If the speed is not being displayed correctly in the
main unit display, repeat the pairing operation. If
this still does not solve the problem, replace the
speed sensor battery with a new one.
• When replacing the sensor unit battery, remove
the old battery, and then wait until about 10
seconds have passed before inserting the new
battery.
■ Heart rate sensor unit
Battery used: CR2032 (x1)
The heart rate sensor unit will operate and battery
power will be consumed if the electrodes are
touched, even if it is not fitted to your body.
In order to avoid battery power being consumed
unnecessarily, remove the heart rate sensor unit and
set the main unit to sleep mode immediately after
use.
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