Yamaha AX-396 Panduan Servis - Halaman 22

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Halaman Cetak
Yamaha AX-396 Panduan Servis
A
B
AX-396
SCHEMATIC DIAGRAM
1
2
From FUNCTION (7)
3
see page 26
-15.2
4
To/From FUNCTION (1)
see page 26
5
0
-2.5
0
From FUNCTION (6)
see page 26
6
-2.5
0
0
7
8
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
2SD1915F
2SA1145
2SC4488
2SC1740S
2SA970
DTC144ES
2SC2705
2SA933S
2SC1815
2SA1015
2SC2240
2SA893A
2SC1890A
E
C B
E
C
B
9
29
C
D
E
24.5
15.3
31.2
0.1
34.0
15.9
0
0
15.9
-33.6
0
0
-15.8
-15.8
-31.0
POWER AMP
50.0
49.5
49.5
46.3
49.0
1.1
1.1
0.5
1.1
-0.5
-1.1
0.6
0.6
0
0
-44.8
-44.6
-0.6
-44.8
-44.6
-1.1
-1.1
-46.2
-44.0
-44.8
-44.6
-44.8
-44.8
-44.6
-44.8
-45.5
-44.2
-45.6
-45.4
-44.8
-45.0
-44.8
-44.8
-44.8
-45.0
-46.3
-44.4
-1.1
-1.1
-44.8
-44.8
-0.6
-44.8
-44.8
0
0
0.6
0.6
-1.1
-0.5
1.1
0.5
1.1
1.1
45.1
46.4
45.7
45.4
46.4
2SA1695
2SA1358
S4VB20
DIODES
2SC4466
Anode
–
~
~
+
B
Cathode
C
B
E
C
E
B C
E
F
G
AX-396
11.5
11.5
13.7
13.7
12.1
13.7
6.6
0.1
12.7
0.7
0
0
12.7
0
IMPEDANCE SELECTOR
RELAY DRIVER
POWER SUPPLY
37.9
0
24.5
37.2
AC72.0(AC59.6)
46.5(38.5)
0.1
37.2
0.1
0.1
0.7
0.7
0
0
0
0
0
0
-46.4
(-38.4)
46.3
46.3
46.5
46.2
0.5
0
0
0
0
0
-0.6
-46.2
0
0
0
0
-46.3
-0.6
0
0
0
0
0.5
46.1
46.4
All voltage are measured with a 10MW/V DC electric volt meter.
Components having special characteristics are marked s and must be replaced
with parts having specifications equal to those originally installed.
Schematic diagram is subject to change without notice.
H
I
POWER
AC13.8
6.6
POWER SUPPLY
J
K
L
= used