Yamaha Clavinova CLP-970 Service Manual page 31

INSPECTION
1. AUX OUT and PHONES
1-1 Apply a 1 kHz, - 20 dBm sine wave to the AUX IN L / L + R. Confirm that the output meets the following specifications :
AUX OUT L / L + R : - 9 dBm +/- 2 dB
AUX OUT R :
PHONES L :
PHONES R :
1-2 Apply a 1 kHz, - 20 dBm sine wave to the AUX IN R. Confirm that the output meets the following specifications :
AUX OUT L / L + R : R ch less than - 50 dBm
AUX OUT R :
PHONES L :
PHONES R :
2. Noise Level
Confirm that the PHONES L and R output noise level is less than - 90 dBm when no sound is produced.
Note : 0 dBm = 0.775 V
Table 1
SWITCH
SW NO.
1 DEMO
2 TRANSPOSE
3 TRANSPOSE
4 SONG SELECT
5 SONG SELECT
6 SONG BALANCE
7 SONG BALANCE
8 TRACK 1
9 TRACK 2
10 EXTRA TRACKS
11 STOP
12 START/PAUSE
13 REC
14 FILE
15 SONG SETTING
16 METRONOME START/STOP
17 METRONOME SETTING
18 TEMPO DOWN
19 TEMPO UP
20 LCD A -
21 LCD A +
22 LCD C -
23 LCD C +
CLP-970/CLP-970M/CLP-970C/CLP-970A/CLP-970AM/CLP-970AC
L / L + R less than - 50 dBm
- 12 dBm +/- 2 dB
L / L + R less than - 40 dBm
- 9 dBm +/- 2 dB
R ch less than - 40 dBm
- 12 dBm +/- 2 dB
NOTE LED
G1
G#1
A1
A#1
B1
C2
C#2
D2 O
D#2 O
E2 O
F2
F#2 O
G2 O
G#2
A2
A#2 O
B2
C3
C#3
D3
D#3
E3
F3
SWITCH
SW NO.
24 LCD B -
25 LCD B +
26 LCD D -
27 LCD D +
28 EXIT
29 PIANO
30 E. PIANO/BASS
31 HARPSICHORD
32 MALLET
33 ORGAN
34 STRINGS/CHOIR
35 SPLIT POINT
36 PIANO/E. PIANO
37 HARPSI/MALLET
38 ORGAN/STRINGS
39 BASS
40 VOICE SETTING
41 REVERB
42 CHORUS
43 BRILLIANCE
44 BRILLIANCE
45 MIDI SETTING
46 OTHER SETTING
NOTE LED
F#3
G3
G#3
A3
A#3
B3 O
C4 O
C#4 O
D4 O
D#4 O
E4 O
F4
F#4 O
G4 O
G#4 O
A4 O
A#4
B4 O
C5 O
C#5
D5
D#5
E5
31