Calibration Mode - Yamaha Silent Piano SH Series Maintenance Handbook

5. Calibration Mode
Upright Piano
Grand Piano
Calibration mode is a program for adjusting the key sensor and damper pedal sensor to the optimum
conditions. Please confirm that the Keyboard adjustment and Pedal adjustment are appropriately done
before Calibration mode is executed.
The Calibration mode can be executed by pushing buttons on a control panel.
Please use headphones with appropriate volume level when you check the buzzer sound.
Measurement by calibration mode shall be required in the following cases:
・If the piano performance is not good enough in Silent mode.
・When replacing the key sensor rail, damper pedal sensor and Switch box.
・When adjusting the action mechanic or pedals.
■Key sensor measurement
For key sensor measurement, there are "All‐key measurement" to rewrite the measurement of all of
the keys, and "1‐key measurement" to rewrite only a designated key.
[Start‐up]
Mode
All‐key measurement
1‐key measurement Panel button
[Supplementary explanation]
Term
Aging Warming‐up the luminosity of key sensor LED to be stabilized after the system is switched ON.
The number assigned to each key corresponding with it's MIDI NOTE number.
* Keyboard No.
Keyboard number indicated on the display is the actual key number + 20.
Example; "32" on display means Key #12G#
REST
The keyboard is not pressed.
END
The keyboard is fully pressed.
[Key sensor measurement procedure]
Before starting‐up the measerment mode confirm that all keys are in the rest position.
All‐key measurement mode
№ Status
Start‐up
1 Aging
Rest value
2
registration
End value
3
registration
Methods
Panel button
Procedure
Refer to "Start‐up"
Wait for about 30 sec to 2 min
"AGI" is indicated and DP(.) blinks on the display while aging. It
will proceed to step 2 automatically after aging is terminated.
* Do not touch the keys during aging. If a key is moved, turn
the power OFF and re‐start in the All‐key measurement mode.
Confirm all keys are in the rest position.
Depress the damper pedal or push the [PLAY] button once to
register the rest value, then proceed to step 3.
* If the key is in the wrong position, correct to the rest
position, turn the power OFF and re‐start in the All‐key
measurement mode.
Lightly press each of the 88 keys one by one to the end
position. Depress the damper pedal or push the [PLAY] button
once to the register rest value, then proceed to step 4.
* Pressing the same key more than once has no effect on
measurement.
‐ 12 ‐
Operation
[REC] + [STOP] + POWER ON
[REC] + [QUIET] + POWER ON (Grand Piano)
[REC] + [PIANO] + POWER ON (Upright Piano)
Explanation
Buzzer sound Display
2/sec
intermittent
tone
3/sec
intermittent
tone