Inspections - Yamaha Clavinova CLP-955 Service Manual

CLP-955

INSPECTIONS

1. Checking PHONES and AUX OUT
1- 1 With 1 kHz, - 20 dBm sine wave in AUX IN L / L +R, check that AUX OUT output is as follows with no
signals on AUX R.
AUX OUT L / L +R - 10 dBm +/- 2 dB
AUX OUT R - 60 dBm or less
PHONES L - 14 dBm +/- 2 dB
PHONES R - 40 dBm or less
1- 2 With 1 kHz, - 20 dBm sine wave in AUX IN R, check that AUX OUT output is as follows with no signals on
AUX L / L +R.
AUX OUT L / L +R - 60 dBm or less
AUX OUT R - 10 dBm +/- 2 dB
PHONES L - 40 dBm or less
PHONES R - 14 dBm +/- 2 dB
2. Noise Level
If no sounds are produced, check that output is –90 dBm or less at PHONES terminals L and R.
(Minimize MIC VOLUME.)
NOTE: 0 dBm is equal to 0.775 V
TABLE 1
ORDER SWITCH
01 DEMO
02 TRANSPOSE
03 FUNCTION
04 METRONOME
05 TEMPO,tFUNCTION
06 TEMPO,sFUNCTION
07 –/NO
08 +/YES
09 PRESET SONG
10 TRACK 1
11 TRACK 2
12 START/STOP
13 REC
14 GRAND PIANO 1
15 GRAND PIANO 2
32
NOTE LED ORDER
C3 16
C#3 17
D3 18
D#3 19
E3 20
F3 21
F#3 22
G3 23
G#3 24
A3 25
A#3 26
B3 27
C4 28
C#4 29
D4
SWITCH NOTE
E. PIANO 1
E. PIANO 2
HARPSICHORD
VIBRAPHONE
CHURCH ORGAN
JAZZ ORGAN
STRINGS
CHOIR
WOOD BASS
E.BASS
SPLIT
REBARB
EFFECT
TOUCH
LED
D#4
E4
F4
F#4
G4
G#4
A4
A#4
B4
C5
C#5
D5
D#5
E5