Yamaha Silent Piano SG Series Maintenance Handbook page 10

[Damper pedal sensor measurement]
While the damper sensor detection position has been adjusted with VR on the sound sheet for the
existing Silent series, this series applies half point position measurement for adjustment.
Damper pedal sensor measurement procedure
Measurement/ confirmation item
No.
Start-up
Confirm pedal rest position
1
2 Half point position
Register Half point position
3
Confirm pedal stroke end.
4
Writing the setting value
5
Complete
6
(*1) A buzzer (continuous tone) is sounded.
(*2) A buzzer (intermittent tone) is sounded.
(*3) A buzzer (quick intermittent tone) is sounded.
(*4) When the writing is finished, the tone 76C will be sounded every second. (If the writing is not
finished successfully, the tone 78D and the tone 76C will be sounded alternately.)
2)Test mode
[How to start up the test mode]
Turn on the power switch while pressing the keys, and release the keys in two seconds.
The test mode will not start up if you press keys too short or too long.
・Key sensor test 1A+3B+4C
Press a white key slowly and confirm the buzzer is sounded.
K1 Buzzer sound 1 Key position is 2.7 mm from rest position. (Continuous tone)
K2 Buzzer sound 2 Key position is 4.5 mm from rest position. (Intermittent tone)
K3 Buzzer sound 3 and 4 need to occur before key stroke ends.
82F#+84G#+86A#+ power ON
(release keys in 2 sec.)
Depress the damper pedal
slightly.
Depress the damper pedal
more until damper wood in the
middle section moves 1mm.
Press 86A# once, when
damper wood in the middle
section moves 1mm.
Depress the damper pedal
further to the end.
Press 88C once.
Power OFF
3 (continuous tone) 4 (quick intermittent tone)
Operation Measurement status notification
Buzzer sound (*1)
Buzzer sound (*2)
Buzzer sound (*3)
Check status (*4)
10