8
N3, N2, N1, NU1
Key sensor measurement (keyboard measurement or key sensor calibration) (N3, N2, N1, NU1)
[Setup]
1) Check that the cables and power cords are connected
2) Turn off the power
3)
Wear
headphones
4) Startup the maintenance mode
While in this state, check on the headphones that sound is emitted in “C chord” for 2 seconds each time showing the
maintenance mode has started.
* In the NU1, no alarm tone is generated but “AG1” is displayed on the LED screen.
5) Let stand idle for 30 seconds to 1 minute (aging for sensor calibration)
[Key sensor measurement]
6)
Measure the “rest value” and “end value” on all keys from 1key to 88key in the following measurement sequence.
[Key sensor measurement start-up method]
Key sensor measurement consists of 2 types. One type is “All key measurement” that rewrites all key measurement values; and the other
type “1 key measurement” that rewrites measurement values only for a speci
fi
c key.
[All key measurement mode]
* The operating guide tones in the NU1 are generated electronically, and an operating guide appears on the panel LED screen.
* If measurement fails, then the 78[D4] and 76[C4] keys are trilled and the tone for the applicable error key is generated (*NU1: key
no. displayed).
Measure the “rest value”
Measure the “end value”
Key sensor measurement mode operating procedures
All key
measurement mode
N3, N2, N1
10[F#0]+12[G#0]+14[A#0]+[POWER ON](release key after about 7 seconds)
NU1
[DEMO/SONG]+[+]+[PLAY/STOP]+[POWER ON]
1 key
measurement mode
N3, N2, N1
9[F0]+11[G0]+[POWER ON] (release key after about 7 seconds)
NU1
[DEMO/SONG]+[PIANO/VOICE]+[PLAY/STOP]+ [POWER ON]
Content
Task Description
(N3,N2,N1)
Operating guide tones
(N3,N2,N1)
Task Description
(NU1)
Screen display
(NU1)
1
Refer to start-up methods Start measurement mode
Chord; 1 time/2 seconds
Start measurement mode
Displays "AG1"
2
Do not touch anything
(sensor aging)
Let stand 30 seconds to
1 minute
Let stand 1 minute to
2 minutes
Displays "AG1"
3
Start measurement
Depress damper pedal 1 time
Chord: Change to 2 taps
Not necessary (Auto)
Change to display "rSt"
4
Measure the “rest value”
Set in state where all keys are
not up and are depressed
Chord: 2 taps
Set in state where all keys are
not up and are depressed
Displays "rSt"
5
Load data into RAM
Depress damper pedal 1 time
Chord: Change to 3 taps
Push the [PLAY/STOP] button Change to display "En"
6
Measure the “end value”
Play keys 1 – 88 to the end
value
Chord: 3 taps
Play keys 1 – 88 to the end
value
Displays "En"
7
Load data into RAM
Depress damper pedal 1 time
Chord: Change to 1 time/
2
seconds
Push the [PLAY/STOP] button Change to display
"n_y"
8
Save data and write into
Flash memory
Depress soft pedal 1 time
76[C] tone, sounds at
consecutive taps
Push the [PLAY/STOP] button Displays "PAS"
9
End measurement
Power OFF
Power OFF
