Schematic Diagram - Yamaha AX-596 Service Manual

A B

SCHEMATIC DIAGRAM

1
PHONO EQ AMP
12.7
0
0
0
0
0
0
-12.8
2
12.9
13.0 13.8 13.5
0 0.1
0
-0.6 -0.6
0.6 0.6
0
0
0.1
-13.6 -13.0
-13.1
-13.6
CD BUFFER
-13.6
-13.0
-13.6 -13.0
0.1
0
3
0
0.6 0.6
-0.6
-0.6
0 0
0.1
13.1 13.8 12.9
13.5
4
CD/DVD DIRECT
AMP OFF
12.9
0
0
0
0
0 0
-13.0
12.9
0
0
0
0
5
0 0
-13.0
0 0
0
0 0 0 0 0
0 0
0 0
12.9
0
0
0
0
0 0 0 0 0 0
0 0
0
6
0 0
-13.0
INPUT SELECTOR
12.9
0
0
0
0
7
0 0
-13.0
8
PIN CONNECTION DIAGRAM OF TRANSISTORS, DIODES AND ICS.
2SD1915F 2SC1815 2SC4488
2SC1740S 2SA1015
DTC114ES 2SC1890A
DTC144ES
2SA933S
E
C B E E
C
B
9
C D E
11.8 12.4 13.0
CD/DVD DIRECT
AMP ON
0
0.7
0
0 0.7
0
0 0 0 0 0
0
0 0
0 0
0 0 0
0
0 0
0
0 0 0 0
11.8 9.9
0.7
MOTOR DRIVER
DIODES NJM2068LD LB1641 LC78211
NJM4558L
Anode
10
8
B Cathode
C
30
1
1
1
F G
4
13.7
0
0 0
VOLUME AMP
0
0
0
-13.8
SYSTEM
CONTROL
4.8
9.9
1.0
0.4
0.6
0
0.5 0.6
0
0 0
4.9 4.4
0.4
NJM2068LD / NJM4558LD LC78211
L1 1
2
L2
3
L3
4
1 2 3 4 5 6 7 8 L4
LCOM1 5
6
L5
L6 7
8
LCOM2
L7 9
M34748E8SP
10
L8
11
21 LCOM3
19
V LEVEL SHIFTER
DD
15 16
V SS
LATCH
12
V EE
18
RES
SHIFT REGISTER
42 17
S
1
H I
K
CD/DVD DIRECT AMP &
PURE DIRECT OFF
To MAIN (1)
see page 17
TONE CONTROL AMP
PROTECTION
14.6
14.5
4.9
14.6
4.8 14.6
To MAIN (1)
0
-0.1
0
see page 17
0.7
0
To/From MAIN (1)
see page 17
5.5
4.9 5.5 13.6
5.5
5.5 6.1
4.8 5.5
5.5
-14.6
6.1
2
0
4.8
13.7 13.8
3 0
0 13.1 1
0
1.7
7.3 6.6
0
0
RESET 0
14.5
14.6
13.9
0
4.8
0
0 4.4
4.4
4.8
4.4
LB1641
30 R1
29
R2 3 2 8 10 9 7
28
R3
27
R4
26 RCOM1
VZ
25 4
R5
24 R6
23
RCOM2
22 R7
# All voltage are measured with a 10MΩ /V DC electric volt meter.
21
R8 # Components having special characteristics are marked s and must be replaced
20 RCOM3 IN 1 5 INPUT LOGIC IN 2
6 with parts having specifications equal to those originally installed.
GND
1 # Schematic diagram is subject to change without notice.
14
ZZ D1
15
ZZ CL
13
CE
ZZ
J K L
AX-596
13.4
0.1
0
0.1
0.1
0
0.1
-14.5
PHONES
A B
SPEAKERS
14.1
0
0
0
G
0
0 0 1
-14.2
0
0
-14.6
0
0
MUTING
Point 1 and 2
Emitter of Q322
Base of Q316
With the POWER switch Disconnect the power cord
turned ON, connect the from the AC outlet.
power cord to the AC outlet.
Point 3
Pin 20 of IC308
16