Test Program - Yamaha N-100 Service Manual

TEST PROGRAM

1. Preparation
To execute the test, the following measuring instruments and jigs are required. (Input impedance of the measuring instruments
should be 1 MΩ or more.)
· Level meter (with JIS-C filter)
· MIDI cable
Set the [MASTER VOLUME] to the maximum level and the leave the pedals turned off.
Connect a measuring plug (stereo plug) to the [PHONES] jack. (33 Ω load)
2. To enter Test Program
Turn on the power with [C#2], [F2] and [G#2] keys pressed and held simultaneously. (Fig. 1)
Once the Test Program is started properly, the sine wave of A3 sounds. To stop the sound, press the [DEMO] button.
3. To proceed the test
Test items are listed in Table 1.
Press the corresponding key to select and execute each test. (See Fig. 2)
To enter the test item select mode after completing each test item, press the [DEMO] button.
A#-1 C#0 D#0 F#0 G#0 A#0 C#1 D#1
A-1 B-1 C0 D0 E0 F0 G0 A0 B0 C1 D1
4. Test result
Each test result is indicated by the sound.
When the test result is OK, the sine wave of C4 sounds.
When the test result is NG, the sine wave of C2 sounds.
F#1 G#1 A#1 C#2 D#2 F#2 G#2 A#2
E1 F1 G1 A1 B1 C2 D2 E2 F2 G2 A2 B2 C3 D3
C#2 F2 G#2
(Fig. 1)
C#3 D#3 F#3 G#3 A#3 C#4 D#4 F#4 G#4 A#4
E3 F3 G3 A3 B3 C4 D4 E4 F4 G4 A4
2 10 12 14 17 26 31 41
1 3 9 11 13 15 16 18 27 28 35 42
Test No.
(Fig. 2)
C#5 D#5 F#5 G#5 A#5 C#6 D#6 F#6 G#6 A#6
B4 C5 D5 E5 F5 G5 A5 B5 C6 D6 E6 F6 G6 A6
N-100
B6 C7
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