Inspections (検査 - Yamaha MSP5 Studio Service Manual

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I
INSPECTIONS (検査)
Measuring Voltage
Load
LEVEL VR
Tone-control SW
1. Electric performance (電気性能)
No.
(項目)
Output Power
1
(定格出力)
2
(利得)
TE
L 13942296513
Frequency Response
3
(周波数特性)
Tone-control
4
Characteristic
(トーンコントロール特性)
Noise Level
5
Residual Noise
www
(残留雑音)
MAX. Noise
6
.
DC Voltage
7
(NOTE): 0 dBu = 0.775 V
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[測定電圧]
[負荷]
[レベル VR]
[トーンコントロール SW]
ITEM
INPUT CONDITIONS
(入力条件)
INPUT1 400 Hz
INPUT1 10 KHz
GAIN
INPUT1 -6 dBu 400 Hz
VR: MAX
INPUT1 +4 dBu 400 Hz
VR: CENTER
INPUT2 -20 dBu 400 Hz
VR: MAX
INPUT2 -10 dBu 400 Hz
VR: CENTER
INPUT1
HIGH SW: 0
LOW SW: 0
LOW = -3
REF: 60 Hz
LOW = -1.5
REF: 60 Hz
LOW = +1.5
REF: 60 Hz
HIGH = -1.5
REF: 15 KHz
HIGH = +1.5
REF: 15 KHz
LEVEL VR = MIN.
HIGH SW: 0
LOW SW: 0
x
ao
y
LEVEL VR = MAX.
HIGH SW: 0
i
LOW SW: 0
No Signal
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8
AC100 V, 50/60 Hz (J)
AC120 V, 60 Hz (U, C, T)
AC240 V, 50 Hz (A)
AC230 V, 50 Hz (B)
AC230 V, 50 Hz (H)
AC220 V, 60 Hz (K)
AC230 V, 50 Hz (O)
LF 4 Ω
HF 6 Ω
MAX.
HIGH SW, LOW SW: 0 position.
OUTPUT CONDITIONS
LF: 24.2 dBu OUTPUT
HF: 24.2 dBu OUTPUT
LF SP-OUT
Q Q
3
6 7
1 3
REF: LF OUTPUT
20 Hz
1 KHz 1 W (WF)
REF: LF OUTPUT
60 Hz
1 KHz 1 W (WF)
REF: LF OUTPUT
400 Hz
1 KHz 1 W (WF)
REF: LF OUTPUT
2 KHz
1 KHz 1 W (WF)
REF: LF OUTPUT
4 KHz
1 KHz 1 W (WF)
REF: LF OUTPUT
20 KHz
1 KHz 1 W (WF)
REF: LF OUTPUT
LOW SW: 0
REF: HF OUTPUT
HIGH SW: 0
LF SP-OUT
DIN AUDIO Filter
HF SP-OUT
DIN AUDIO Filter
u163
LF SP-OUT
DIN AUDIO Filter
.
HF SP-OUT
LF-SP OUT
2 9
9 4
2 8
(出力条件)
1 5
0 5
8
2 9
9 4
LF SP-OUT
LF SP-OUT
LF SP-OUT
LF SP-OUT
HF SP-OUT
LF SP-OUT
HF SP-OUT
HF SP-OUT
m
co
MSP5 STUDIO
9 9
LIMIT
(限界値)
< 0.02 %
< 0.02 %
24.2 dBu ± 2 dB
24.2 dBu ± 2 dB
24.2 dBu ± 2 dB
24.2 dBu ± 2 dB
2 8
9 9
-15 ± 2 dB
-6 ± 1 dB
+1 ± 0.7 dB
0 ± 0.5 dB
-19 ± 3 dB
-14.5 ± 2 dB
-3.7 ± 1.2 dB
+1.5 ± 1 dB
-3 ± 1.5 dB
-1.5 ± 1 dB
+1.5 ± 1 dB
-1.5 ± 1 dB
+1.5 ± 1 dB
< -70 dBu
< -70 dBu
< -60 dBu
< ± 50 mV
13

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