Sharp SD-AT50H, Service Manual

Page: 16 / 76

SD-AT50H
– 16 –
Figure 16 BLOCK DIAGRAM (6/9)
D706
LED805
LED803
LED804
LED806
LED802
LED807
LED809
LED808
CNP901
RL9
BI901
D9
2 1
32
31
30
29
28
27
26
25
16
15
14
13
12
11
10
9
XL701 2 MHz
BI802
BI801
CNP801
RL801
RL802
SO801
SPEAKER
TERMINAL
D801
RL803
CNP803
IC813
KIA4558F
PRE AMP.
8
4
IC811
KIA4558F
PRE AMP.
8
4
IC812
KIA4558F
PRE AMP.
8
4
BI803
D710
24 23 22 21 20 19 18 17
1 2 3 4 5 6 7 8
3
1 2 3
5 6 7
3 2 1
5 6 7
3 2 1
5 6 7
PROTECT
A_-15V
RLY_+12V
P
AC_DETECT
AMP_INT AMP_INT
T
A
+3.7V(UCON)
+15V
A__+15V
DRIVER
-15V
AMP_CLK
AMP_STB
AMP_SOUT
AMP_INT
AMP_SIN
D_+7.5V
-B
+15V
SYS_STOP
AC_DETECT
S_S_MUTE F_S_MUTE FAN_LOCK PROTECT FAN C_S_MUTE
RESET
+3.7V(UCON)
+3.3V(USWD)
+B_CHECK
OFFSET
SYS_STOP
W_S_MUTE
AMP_STB
TIMING_CK
-B_CONT
POWER
AMP_SIN AMP_CLK AC_DETECT A/D_RESET BASS-SW SP_RLY AMP_SOUT
A_+12V
A_-12V
SP__RLY
SP_RLY
SP_RLY
SP__RLY
FAN
FAN_LOCK
BASS-SW
PROTECT
OFFSET
A/D_RESET
W_S_MUTE
C_S_MUTE
S_S_MUTE
F_S_MUTE
PROTECT
A_+12V
BASS SW
DRIVER
RESET
IC702
PST9127
RESET
RELAY
DRIVER
RELAY
DRIVER
VOLTAGE
REGULATOR
MOTOR
DRIVER
SWITHING
BUFFER
BUFFER
BUFFER
BUFFER
MUTE
DRIVER
MUTE
DRIVER
MUTE
DRIVER
MUTE
DRIVER
MUTE
DRIVER
M1
FAN MOTOR
Q701
SUBWOOFER
SUBWOOFER
Q705 Q704
Q703
FRONT R-CH
FRONT L-CH
Q829
Q828
Q859
Q818
VDD
-
+ VSS
+
-
Q815
Q816
Q817
Q820
Q814
Q813
+
VDD
-
VSS +
-
Q819
Q812
Q811
Q827
Q830
M
Q822
Q801
-
-
+
+ VSS
VDD
POINT
RESET
L-CH +
L-CH -
R-CH -
R-CH +
R-CH -
L-CH -
L-CH +
FRONT
SURROND
CENTER
+
+
-
-
CENTER
L-CH
R-CH
L-CH
R-CH
GND
FRONT
SURROND
R-CH -
L-CH -
L-CH +
SURROND
FRONT
L-CH -
R-CH -
L-CH +
R-CH +
CENTER
+
-
GND
R-CH
L-CH
L-CH
CENTER
R-CH
GND
GND
R-CH +
SUB WOOFER
R-CH +
SURROND FRONT
CENTER
SUB WOOFER
Q919
13
11
12
8
1
2
3
4
5
9
7
2
6
5
4
10
3
1
4
3
2
1
1
3
4
5
2
6
8
9
7
4
2
3
1
5
2
6
3
4
8
7
5
1
2
1
3
4
10
9
11
12
6
8
7
5
1
2
3
4
5
6
7
8
9
10
11
12
13
IC701
IX0564AW
SYSTEM
MICROCOMPUTER
+
–
SP6
SUBWOOFER
TO 1-BIT AMP.
SECTION
TO 1-BIT AMP.
SECTION
TO MAIN SECTION
TO 1-BIT AMP.
SECTION
TO 1-BIT AMP.
SECTION
TO MAIN SECTION