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アンプ Yamaha AX-496のPDF サービスマニュアルをオンラインで閲覧またはダウンロードできます。Yamaha AX-496 42 ページ。 Stereo amplifier
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A
B
SCHEMATIC DIAGRAM
1
PHONO EQ AMP
12.5
0
5
8
0
7
0
6
2
0
2
1
0
0
3
4
-12.5
14.2
0
5
8
7
0
0
6
CD BUFFER
3
0
2
1
0
0
3
4
-14.1
4
0
0
0
CD/DVD DIRECT
AMP OFF
0
5
0 0 0
0
0
0
0
0
0
0 0 0
6
INPUT SELECTOR
16.4
16.4
7
-14.5
0
8
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
2SD1915F
2SA1145
2SC4488
2SC1740S
2SA970
DTC144ES
2SC2705
2SA933S
2SC1815
2SA1015
2SC2240
2SA893A
2SC1890A
E
E
E
C B
C
B
9
C
D
E
-0.8 4.8
5.5
0
5.5
15.3
CD/DVD DIRECT AMP ON
0.7
0.7
0
0
0
0
0 0
0
0
0
0
0
0
0
0
0
0
0.2
0
0
0 0 0
9.1
0
0
-9.1
0
0
MOTOR DRIVER
0
0
2SA1358
2SA1695
S4VB20
DIODES
2SC4466
Anode
–
~
~
+
B
Cathode
C
B
C
B C
E
E
F
G
AX-396
14.3
0
0
0
0
0
0
-14.2
VOLUME AMP
CD/DVD DIRECT
AMP OFF
9.8
9.3
SYSTEM
0
CONTROL
0.9
0
0.6
0
0
NJM2068LD
1
2
3
4
5
6
7
8
NJM2068LD
LB1641
TC4053BP
LC78211
10
8
8
16
30
1
1
1
1
H
I
To MAIN (1)
see page 29
0
0
0
0
PROTECTION
14.6
4.7
-1.3
-4.9
14.6
0
4.8
0
-1.0
To MAIN (1)
see page 29
0.7
0
0.7
To/From MAIN (3)
0
see page 29
0
5.4
11.4
4.7
5.4
6.0
4.8
5.4
2
6.0
3
4.7
0
1
0
11.3
11.4
10.7
1.7
0
0
7.1
6.4
6.4
0
0
0
RESET
4.7
4.8
LC78211
LB1641
3
2
8
10
9
7
4
VZ
IN 1
INPUT LOGIC
IN 2
5
6
GND
1
M37478M4-408SP
All voltage are measured with a 10MW/V DC electric volt meter.
Components having special characteristics are marked s and must be replaced
21
with parts having specifications equal to those originally installed.
15
Schematic diagram is subject to change without notice.
42
1
J
K
L
AX-396
TONE CONTROL AMP
14.4
0
14.4
0
5
8
7
6
0
0
0
0
2
0
1
3
4
-14.3
0
-14.3
Point 1 and 2
Emitter of Q108
Collector of Q104
Point 3
Pin 20 of IC101
TC4053BP
28