Yamaha AvantGard N2 Onderhoudshandboek - Pagina 9

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[1 key measurement mode]

Content

1 Refer to start-up methods Start measurement mode

Do not touch anything

(sensor aging)

Make measurement key

setting and start measurement

Set measurement key

Measure the "rest value"

5 Load data into RAM

Measure the "end value"

7 Load data into RAM

Save data and write into

Flash memory

9 End measurement

* 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).

Sensor test mode

Deﬁ nition of term

· REST

: Position when the keyboard is not pressed.

· END

: Position when the keyboard is lightly pressed to the bottom of the key.

· K1/K2/K3/K4 : Four threshold values between the REST position and END position when a key is pressed. While the value

of the END is 10 mm, the threshold values are K1 = 2.7 mm, K2 = 4.5 mm, K3 = 6.3 mm and K4 = 8.1 mm.

· M1/M2

: Two threshold values between the REST position and END position when a hammer is in motion. The

distance between the M1 and M2 is 10 mm while that between the M2 and END is 1 mm.

[Key sensor test mode (N3, N2, N1, NU1)]

Startup method

N3, N2, N1: [A-1]+[B-1]+[C0]+Power ON

NU1:

[METRONOME]+[RECORD]+[PLAY/STOP]+Power ON

Select Test mode No. 27 with [+]/[-] and execute [PLAY/STOP]

Checking method

Check that the K1 through K4 key positions detected by the key sensor are

heard as a sine wave (A5) tone on the headphones.

[Hammer sensor test mode (N3, N2, N1)]

Startup method

N3, N2, N1: [A-1] + [B-1] +Power ON

Check that the M1 ON and M2 ON positions detected by the hammer sensor

are heard as a sine wave (A5) tone on the headphones.

* The NU1 has no hammer sensor unit.

Task Description

(N3,N2,N1)

Chord; 2 taps

Let stand 30 seconds to

1 minute

Play only keys measured

Change measurement key

tone to 2 taps

Not necessary (Auto)

Set in state where all keys

2 tap measurement key

are not up and are depressed

tone

Depress damper pedal 1 time Change to 3 taps

Play measurement key to the

3 taps

end value

Depress damper pedal 1 time Change to 1 time/2 second tone Push the [PLAY/STOP] button Change to display "n_y"

Depress soft pedal 1 time

76[C] tone, sounds at

consecutive taps

Power OFF

release keys after 7 seconds

Operating guide tones

(N3,N2,N1)

Start measurement mode

Let stand 1 minute to

2 minutes

Play only keys measured

Push the [PLAY/STOP] button Change to display "rSt"

Set in state where all keys

are not up and are depressed

Push the [PLAY/STOP] button Change to display "En"

Play measurement key to the

end value

Push the [PLAY/STOP] button Displays "PAS"

Power OFF

K1 (2.7 mm)

K2 (4.5 mm)

K3 (6.3 mm)

K4 (8.1 mm)

END

N3, N2, N1, NU1

Task Description

Screen display

(NU1)

Displays "1Ky"

Displays key no.

Displays "rSt"

Displays "En"

REST

(10 mm)

END

Continuous

sound

10 mm

Continuous

sound

REST

(NU1)

Continuous

sound

Discontinuous

sound

Continuous

sound

Short-cycle

discontinuous

sound