Yamaha N-100, Руководство по обслуживанию

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36
N-100
Table 1 Test items
No. Key Test item Test function and judgment criteria
1 C3 To check the Master ROM version using C0 — A2 keys.
To check the Slave ROM version using C3 — A5 keys.
Press keys in the specified range and find the key where the sine wave sounds. Check the
version by the scale of that key. (See Fig. 3)
When the number corresponding to the pressed key agrees with the current version, an
OK (sine wave of C4) sound is generated and when disagrees, an NG (sine wave of C2)
sound is generated.
For the Key-to-number correspondence, refer to Fig. 3.
Example) When the current version is Ver.1.00
When the C#0 key is pressed. the sine wave of C4 sounds, indicating 1 for the integer.
When the C1 key is pressed, the sine wave of C4 sounds, indicating 0 for the first
decimal place.
When the C2 key is pressed, the sine wave of C4 sounds, indicating 0 for the second
decimal place.
In this way, the version 1.00 is confirmed.
(The sine wave of C2 sounds when any key other than C#0, C1 and C2 is pressed.)
ROM version check
To check the ROM checksum connected to the CPU bus (Simplified check).
For the OK test result, the sine wave of C4 sounds (for 1 second).
For NG, the sine wave of C2 sounds (continuously until any key is pressed).
To check the ROM checksum connected to the CPU bus (Simplified check).
For the OK test result, the sine wave of C4 sounds (for 1 second).
For NG, the sine wave of C2 sounds (continuously until any key is pressed).
The sine wave sounds from the low range in the key range (A0 — E3) capable of sounding
while the sound production channel of the sound source is changed one after another.
(The sound stops after sounding of all 32 channels.)
Check that no abnormal sound or noise is generated.
When a key is pressed after Auto Scaling, the sine wave sounds. (Single sound, priority
on first-come)
Press the [DEMO] button to end this test.
The sine wave sounds from the low range in the key range (F3 — C6) capable of sounding
while the sound production channel of the sound source is changed one after another.
(The sound stops after sounding of all 32 channels.)
Check that no abnormal sound or noise is generated.
When a key is pressed after Auto Scaling, the sine wave sounds. (Single sound, priority
on first-come)
Press the [DEMO] button to end this test.
2
3
9
10
C#3
D3
F3
F#3
Master ROM check 1
Slave ROM check 1
TG1 check
(Auto Scaling)
TG2 check
(Auto Scaling)
C0 D0
C#0 D#0
E0 F0 G0 A0
F#0 G#0 A#0
B0 C1 D1
C#1 D#1
E1 F1 G1 A1
F#1 G#1 A#1
B1 C2 D2
C#2 D#2
E2 F2 G2 A2
F#2 G#2 A#2
B2 C3 D3
C#3 D#3
E3 F3 G3 A3
F#3 G#3 A#3
B3 C4 D4
C#4 D#4
E4 F4 G4 A4
F#4 G#4 A#4
B4 C5 D5
C#5 D#5
E5 F5 G5 A5
F#5 G#5 A#5
B5 C6 D6
C#6 D#6
E6 F6 G6 A6
F#6 G#6 A#6
B6 C7
B-1 A-1
A#-1
0 2
1 3
4 5 7 9
6 8
Integer of the
Master ROM version
: In the case of the above example
0 2
1 3
4 5 7 9
6 8
First decimal place
of the Master
ROM version
0 2
1 3
4 5 7 9
6 8
Second decimal place
of the Master
ROM version
0 2
1 3
4 5 7 9
6 8
Integer of the
Slave ROM version
0 2
1 3
4 5 7 9
6 8
First decimal place
of the Slave
ROM version
0 2
1 3
4 5 7 9
6 8
Second decimal place
of the Slave
ROM version
(Fig. 3)