Yamaha NS-P270, Руководство по обслуживанию

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A B C D E F G H
1
2
3
4
5
6
NS-P270/NS-P276
10
0
0
0
0
0
0 0
0
-11.6
0
0
0
0
0
0
0 0
0.2
11.7
1.9
1.3
1.3
0.1
-32.0
-1.1 -33.0
32.9
0.2
11.7
11.7
-11.0
0
0
0
0
0
0
-1.0 0
0
0
0
11.7
-11.0
0
0
0
0.1
-1.5
0
0.1
11.7
-11.7
0.1
0.1
0.1
0.1 0.1
0.1
0.1 0.1
0.1
0.1
-9.9
1.3 1.3
0.3
1.3
1.3
0.8
0.8
0.8
0.1
0.1
0.1
0.1 0.1
-11.6
-12.2
-12.2
0.1
12.3
+12.3
11.7 31.3
-31.5
32.9 -33.0
AC48.9 V
-31.6
0
INPUT
MAIN (2)
MAIN (3)
POWER
U, C, A, B, G models
R, T, K, L models
MAIN (1)
DRIVER
VOLUME
POWER INDICATOR
IC4 : STK404-050
Power Amp
1 1 2 3 4 5 6 7 8 9 10
R1
R4
R5
C1
C2
D1 TR3
TR5
R3 R6
TR4
SUB
R2
TR1 TR2
TR6
TR7
TR8
IC1, 2, 7 : KIA4558P
Dual OP-Amp
– +
OUT
1
–IN
1
–V
CC
+V
CC
OUT
2
1
2
3
4 5
+IN
1
–IN
2
+IN
2
– +
6
7
8
■
SW-P270 SCHEMATIC DIAGRAM
* All voltages are measured with a 10M
Ω
/V DC electronic volt meter.
* Components having special characteristics are marked
Z
and must be replaced with parts having
specifications equal to those originally installed.
* Schematic diagram is subject to change without notice.