Sharp CD-PC672 Service Manual page 27

CD-PC672
FM SIGNAL
A
B
C
D
–15V
15
A_GND
14
FRONT_L
13
FRONT_R
12
REAR
11
CENTER
10
SUB_WOOFER
9
POWER
8
A_GND
7
CD_GND
E
6
CD_+B
5
D_GND(micom)
4
A_12V
3
M_12V
2
M_GND
1
CNP803
VLOAD
7
VF1
6
VF2
5
SP_RLY
4
AC_RELAY_CORL
F
3
SW_5V
2
UN_SW_5V
1
CNP806
G
POWER PWB-C1
H
1
IC901
3 Ch
STK4084B POWER AMP.
1 2 3 4
C904
C907
10/35 10/35
C901
R905
1/50
1K
C903
1/50
R907 1K
C906
1/50
R957
DS1SS133
1K
Q904
C976
KTC3199 GR
22/25
R956
5.6K
R963
680(2W)
–B
2 1
BI801
+B
+B
IC806
AN78L05
CONSTANT
VOLTAGE
REGULATOR
D821
DS1SS133
3
2
VF1
VF2
VLOAD
2 3
Figure 30 SCHEMATIC DIAGRAM (11/12)
Ch1
5 6 7 8 9
10 11
R912
100
C911
100/50
C912
100/50
R913
100
R909
1K
C908
0.001
D901
R959
3.9K
CENTER
A_GND
REAR
2 1
C909
C910
2200/50
2200/50
R910
R911
22K
22K
+B1
-B
IC804
KIA7812P
VOLTAGE
REGULATOR
3 1
2
C820
0.1
(ML)
IC805
1 3 1
KIA7806P
2
VOLTAGE
REGULATOR
C827
0.1
(ML)
4
– 30 –
Ch2
Ch3
12 13 14 15 16 17 18 19
C926
C915
C923
C929
47P 47P
47P
15P
C916
15P
R917
R930
R918 R927
56K
56K
470 470
C917
47/50
C918
47/50
C928
C922
C920
47/35
0.0015 1/50
R926 R928
1K 180
C921 R925
R929
1/50
1K
180
C919
C927
0.0015
47/35
BI801
C801
2200/50
+B2
R813
3.3
C819
(1/2W)
0.1
(ML)
5
20
R931
1K
R961
39K
Q
3
2
K
1
R
1
C
10
R
1
D803
1N4004S
D8
1N
D8
D804
1N40
1N4004S
R812
10
K
6