Yamaha KMA-1000, Руководство по обслуживанию

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A B C D E F G H
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2
3
4
5
6
I J K L M N
7
8
9
10
49
KMA-1000/KMA-950
MAIN 1/2
L
4.6
4.6
-5.0
-5.5
4.6
0
4.6
0
0
0
0
-5.5
5.7
-4.5
-4.5
0
0
5.7
5.1
1.0
0
5.1
1.0
0
71.9
72.1
72.1
71.7
72.0
73.2
73.2
73.2
72.2
0
0
0
5.1
17.9
17.9
8.1
-4.0
-16.1
4.6
4.6
72.1
-4.5
-4.5
-72.2
-72.0
-72.0
-71.5
-71.5
-72.2
-72.0
5.2
-5.1
-5.5
4.6
4.6
0
0
0
0
-5.5
5.7
-4.5
-4.5
0
0
5.6
72.1
72.1
71.7
72.0
73.2
73.2
4.6
4.6
72.1
-4.5
-4.5
-72.2
-72.0
-72.0
-71.6
-72.0
-72.2
-72.0
0
0
0
0
0
17.3
17.3
17.3
9.7
4.7
4.7
0
0
72.3
-72.2
17.9
-16.7
5.1
0
0
0
0
5.3
0
12.0
16.7
0.7
0.7
1.1
1.1
0.4
-0.4
-1.0
-1.0
-70.7
0.7
71.2
71.1
71.7
71.7
-71.3
-71.3
-72.0 -72.1
-71.3
-71.3
-71.3
-71.4
-71.4
-71.4
-71.4
71.1
72.3
0
0
0
0
-4.5
0
0
0
0
4.6
71.9
0.7
0.7
1.1
1.1
0.4
-0.4
-1.0
-1.0
-70.7
0.7
71.7
71.1
71.7
71.7
-71.3
-71.3
-72.0 -72.1
-71.3
-71.3
-71.3
-71.4
-71.4
-71.4
-71.4
71.1
72.3
0
0
0
0
-4.5
0
0
0
0
AC28.9
AC9.0
CB401
CB402
CB408
W405
W406
CB409
CB410
CB411
CB412
CB403
IC401
W404
W402
W403
W401
IC402
POWER AMP
POWER SUPPLY
3 CH 1 3
CH 2
P
age 44
J2
to FUNCTION (1)_W1
Page 44 H7
to FUNCTION (1)_W2
Page 48 I2
to OPERATION (3)_CB562
to PO
WER
TRANSFORMER
Page 50 A4
to MAIN (2)_W551
to POWER TRANSFORMER
POWER CABLE
AC OUTLETS
SPEAKERS
R
L
to POWER TRANSFORMER
* 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.
Point
e
CH 1 : Emitter of Q433
CH 2 : Collector of Q431
↑
Power cable on
↑
Power cable off
↑
Power cable on
IC401, 402: LM61CIZ
Temperature sensor
KMA-950