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SD-AT50
R-CH +
1
2
R-CH -
3
L-CH -
4
L-CH +
5
R-CH +
6
R-CH -
7
L-CH -
8
L-CH +
9
BI801
+
5
CENTER
-
4
+
3
2
SUBWOOFER
-
1
BI802
SP_RLY
CNP801
L-CH
3
4
R-CH
L-CH
8
2
6
GND
R-CH
7
5
CENTER
1
SUBWOOFER
BASS-SW
W_S_MUTE
AMP_STB
SYS_STOP
OFFSET
TIMING_CK
POWER
-B_CONT
SP__RLY
SP__RLY
RL802
SP_RLY
Q801
D801
RELAY
DRIVER
3 2
1
-
IC811
+
8
VDD
KIA4558F
+ VSS
4
-
PRE AMP.
5 6
7
3 2
1
-
IC812
+
8
VDD
KIA4558F
+
VSS
4
-
PRE AMP.
5 6
7
3
2
1
-
IC813
+
8
VDD
KIA4558F
+ VSS
4
-
PRE AMP.
5 6
7
Q859
Q828
BASS SW
DRIVER
Q829
D710
+B_CHECK
24 23 22 21 20 19 18 17
16
15
25
26
14
27
13
IC701
28
12
IX0564AW
POINT
RESET
29
SYSTEM
30
MICROCOMPUTER
31
32
11
10
RESET
9
Q701
1 2 3 4 5 6 7 8
RESET
Figure 16 BLOCK DIAGRAM (6/9)
RL801
VOLTAGE
REGULATOR
RL803
Q827
SWITHING
Q822
A_+12V
Q811
F_S_MUTE
Q819
BUFFER
Q812
Q813
S_S_MUTE
Q820
BUFFER
Q814
MUTE
DRIVER
BUFFER
C_S_MUTE
Q817
Q815
W_S_MUTE
Q816
Q818
BUFFER
PROTECT
OFFSET
A/D_RESET
D706
Q703
PROTECT
Q705
Q704
AMP_INT
IC702
PST9127
+3.3V(USWD)
RESET
1
2
3
– 16 –
SO801
SPEAKER
TERMINAL
2
R-CH +
1
R-CH -
L-CH -
3
4
L-CH +
R-CH +
10
R-CH -
9
L-CH -
11
12
L-CH +
6
5
8
+
CENTER
7
-
MOTOR
DRIVER
M1
M
FAN MOTOR
Q830
CNP803
FAN_LOCK
FAN
BI803
1
L-CH
MUTE
2
DRIVER
GND
3
MUTE
DRIVER
4
R-CH
L-CH
5
6
GND
MUTE
DRIVER
R-CH
7
8
CENTER
GND
9
10
SUB WOOFER
11
12
13
LED803
FRONT L-CH
LED805
FRONT R-CH
LED804
LED806
LED809
CENTER
LED808
SUB WOOFER
LED802
5
4
4
+15V
3
3
RL9
2
2
-15V
D9
1
1
DRIVER
BI901
Q919
RELAY
DRIVER
D_+7.5V
7
13
9
8
+3.7V(UCON)
12
4
A__+15V
11
A_-15V
1
-B
AMP_SOUT
5
AMP_SIN
6
AMP_CLK
2
AMP_STB
3
AMP_INT
10
P
CNP901
T
A
LED807
RLY_+12V
A_+12V
A_-12V
+15V
AC_DETECT
AMP_INT
+3.7V(UCON)
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