Yamaha disklavier MX-100A, Руководство по обслуживанию

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This sensor system is used to obtain the key information listed below:
Detection contents
Which key is (Key Assign)?
When i s (Note On Timing)?
How strong is (Touch Data)?
How long is (Note Off Timing)?
Detection method
OR of K and M1 (see Note 1)
M2
Time from M1 to M2 (see Note 2)
AND for K and M1 (see Note 3)
Note 1: OR···Time during which either key sensor K or hammer sensor M1 has its light blocked by the
shutter.
Note 2: When the time from M1 to M2 is:
Long···Hammer has passed slowly = Low sound volume
Short···Hammer has passed quickly=High sound volume
Note 3: AND···Time when the light for both K and M1 has been transmitted (shutter has returned).
2. Pedal Sensor Unit:
The damper and soft pedal sensor unit is constructed from the following equipment:
Contact···Leaf switch
Detection element···LSI KAPP (YM2019)
These components are used to detect the ON-OFF timing for each pedal.
The pedal sensor detects the ups and downs of the pedal lever hook and is set so that the switch goes
on when the damper is 1 mm from the string.
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