Yamaha YDP-131 Service Manual page 36

YDP-131/YDP-131C
No. Key
48 C7 Test Mode Exit
Table 2 Switch test order
Order Switch name
1 DEMO/SONG
2 PIANO/VOICE
3 SELECT
4 REC
5 PLAY
6 METRONOME
36
Test item
To end the test program and reset to the normal mode (for restarting).
LED to light up Note No.
C3
D3
E3
REC F3
PLAY G3
A3
Test function and judgment criteria