Yamaha b1-Silent Manuel de maintenance - Page 8
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Damper Pedal Sensor Measurement
In prior Silent series models, the damper pedal sensing point was adjusted with VR on the tone
generator board, on this series however, it is adjusted using the half point position measurement.
Damper Pedal Sensor Measurement Procedures
Measurement/Check
No.
Item
Start measurement
mode
Check pedal movement
1
Half point setting
2
Half point setting
3
Check pedal end of
4
pedal stroke
Write the setting value
5
Unit Block Diagram
DC IN12V
AC
Switch Box
Adaptor
POWER
REVERB PHONES A
Operation
Switch the Power ON while
holding the 82F#, 84G#, and
86A# keys. (Release the keys
after 2 sec.)
Slightly depress the damper.
Further depress the damper
pedal. → Starts after damper
wood moves 1mm.
Press the 86A# key (the highest
black key) once.
Further depress the damper
pedal.
Press the 88C key (the highest
pitch) once.
Key Sensor Unit
KEY PDL
PHONES B
VOLUME
Produces buzzer sound (*1).
Produces buzzer sound (*2).
Produces buzzer sound (*3).
Plays 76C consecutively.
(If the writing operation fails 78D
and 76C will play sequentially.)
3P
2P
Soft Pedal Sensor
Damper Pedal Sensor
8
Notification
KS Sheet