User's Manual

■ Main unit
Battery used: CR2450 (x1)
10 11
■ Bracket set for FLIGHT DECK
SM-EW79F-E (for ST-7970)
Bracket band
Rear derailleur
adjustment button
• Bracket
■ USB dongle SM-DL79
USB port cover
• Bracket band adapter
For 25.8 mm inner diameter
■ Bracket set for FLIGHT DECK
SM-EW79F-I (for ST-7971/SW-7971)
• Bracket
• Bracket fixing screws
18mm (x1)
15mm (x1)
12mm (x1)
• Bracket band
• Bracket band adapter
For 25.8 mm inner diameter
4. Replacing the Batteries
Insert so that the + side is facing upward as shown in the illustration, and
then close the battery cap.
CAUTION:
• Always be sure to operate the buttons to force
the main unit into 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.
• When replacing the battery of the main unit, remove the old battery
and then wait at least 10 seconds before inserting the new battery.
• 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 13 for details on pairing.
■ 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.
Open
Close
Open
Close
Adapter
Rear derailleur
adjustment button
• Bracket fixing screws
18mm (x1)
15mm (x1)
• Aero bar protective sticker
• Cable ties for securing
adapter (2 types x4)
The batteries for units other than the main unit should be inserted
when the units are being paired.
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.)