Yamaha YDO-323 Service Manual page 28

YDP-323
Table 1 Test items
No. Key
1 C3 ROM version check
# # # # # #
A -1 C 0 D 0 F 0 G 0 A 0 C
A-1 B-1 C0 D0 E0 F0 G0 A0 B0 C1 D1
1 3 6 8
0 2 4 5 7 9 0 2
Integer of the First decimal place
Master ROM version of the Master
2 C#3 Master ROM check 1
3 D3 Slave ROM check 1
4 D#3 RAM check 1
5 E3 Flash ROM check 1
28
Test item
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)
Press keys C0–A0 to check the integer of the Master ROM version.
Press keys C1–A1 to check the first decimal place of the Master ROM version.
Press keys C2–A2 to check the second decimal place of the Master ROM version.
Press keys C3–A3 to check the integer of the Slave ROM version.
Press keys C4–A4 to check the first decimal place of the Slave ROM version.
Press keys C5–A5 to check the second decimal place of the Slave ROM version.
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.
# # # # # # # # #
1 D 1 F 1 G 1 A 1 C 2 D 2 F 2 G 2 A
E1 F1 G1 A1 B1 C2 D2 E2 F2 G2 A2
1 3 6 8 1 3 6 8
4 5 7 9 0 2 4 5 7 9
Second decimal place
of the Master
ROM version ROM version
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).
To check the connection condition of RAM 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 erase, write, read functions for specific bank of Flash ROM (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).
It takes 6 seconds before checking is completed.
Test function and judgment criteria
Example) When the current version is Ver.1.01
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 C#2 key is pressed, the sine wave of C4 sounds, indicating 1 for the
second decimal place.
In this way, the version 1.01 is confirmed.
(The sine wave of C2 sounds when any key other than C#0, C1 and C#2 is pressed.)
# # # # # # # #
2 C 3 D 3 F 3 G 3 A 3 C 4 D 4
B2 C3 D3 E3 F3 G3 A3 B3 C4 D4 E4 F4 G4 A4
1 3 6 8 1 3
0 2 4 5 7 9 0 2 4 5 7 9
Integer of the First decimal place
Slave ROM version of the Slave
ROM version
# # # # # # # # #
F 4 G 4 A 4 C 5 D 5 F 5 G 5 A 5 C
B4 C5 D5 E5 F5 G5 A5 B5 C6 D6
6 8 1 3 6 8
0 2 4 5 7 9
Second decimal place
of the Slave
ROM version
# # # #
6 D 6 F 6 G 6 A 6
E6 F6 G6 A6 B6 C7
Fig. 3