Shimano Nexus Service Instructions Manual page 14

Other
• Auto Light (When the lamp mode is set to AUTO)
function
When the surrounding area becomes dark the lamp automatically comes on.
Brighter or dimmer light in the surrounding area is detected by a light sensor window on
the computer unit (AI-8S40), and the lamp is automatically turned off or on.
Regularly clean the light sensor window so it will not be covered by mud or dirt, and do
not place seals or other objects over the light sensor window.
• When the speed has dropped to zero and the backlight and the charging indicator switch
off 5 seconds later, the power save function will start operating 1 minute after that. The
display turns off at this time.
To return to normal mode, press the display select switch on the FLIGHT DECK, or rotate
the front wheel.
• Buzzer operation
The buzzer operates in the following ways to convey information.
1
2
3
4
*1 Gear shifting operations are cancelled under the following conditions:
• When a request is made to shift to a non-existing gear
For example, if the shifting up switch is pressed when the chain is on the smallest
sprocket
• If the battery charge is low
(Derailleurs: 0~1 blocks [varies by situation]. Suspension: 3 blocks or less.)
• If there is a problem with the rear derailleur
• If the suspension select switch is pressed while suspension mode is in the process of
changing
Normally gear shifting and suspension adjustment will be possible if the above limiting
conditions are resolved.
Rear gear range of AUTO mode
Shifting Mode
Condition Type of sound
Before gear
1 short beep
shifting starts
Switch request Two short
cancelled beeps
When normal
1 long beep
operation starts
When shifting
1 long beep
fails
Rear Gear
L 8 gears (1 – 8)
D 8 gears (1 – 8)
Ds 7 gears (2 – 8)
Light sensor window
Remarks
Gear shifting starts immediately after the buzzer sounds.
A gear shifting request or other request was cancelled because
the pedals were not rotating. (See *1)
Sounds when the flight deck changes from parking mode to
normal mode.
A rumbling sound is emitted when shifting fails.
Indicator Display
Example: 1st gear
Example: 8th gear
Example: 2nd gear