Sharp CD-C449W Service Manual page 36

CD-C449W/K449W
A
FWP01
TO MAIN PWB
P27 12-E
B
CFWP01
C
D
E
F
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.
1
FM SIGNAL
CV11
2.2/50
CV15
470P
OUT1(L-CH)
1
FR
RELAY1 2
GND(A) 3
4
FAN CONT
5
OUT2(R-CH)
CV16
6
SP LEVEL
470P
GND(M) 7
H/P SW 8
+12V(M) 9
FAN SW 10
11
NC
12
PROT
13
POSISTOR
14
AMP
POWER PWB-D
–B
+B
+4.6V(D)
GND(D)
BI901
1 2 3 4 5 6 7 8 9 10 11
CNS901 1 2 3 4 5 6 7 8 9 10 11
TO MAIN PWB
P27 12-F
CNPP01
2
Figure 34 SCHEMATIC DIAGRAM (13/15)
CV13
RV17
2.2/50
1K
0V
ICV01
14
CV17
POWER AMP.
47P
STK407-09
0V
13
CV21
RV23
15P
1K
RV36
22K
RV21
56K
QV16
RV19
41.4V
KTC3199 GR
270
0V
0.67V
CV19
100/50
0V
RV37
47K
RV20
270
RV38
10K
CV20
100/50
RV22
56K
RV33
RV24
CV22
10K
1K
15P
0V
15
0V
11
CV12
CV18
RV18
2.2/50
47P POWER AMP.
1K
0V
10
CV14
2.2/50
+12V(M)
Q903
2SD468 C
R905
+B
4.8V 11.8V
22
Fusible
5.46V
C906
0.022
R906
ZD902
100
MTZJ5.6A
C905
47/25
+B +12V(A)
D901
1SS133
2
–0.62V
1
1.35V
3
Q907
0V KRA102 M
Q909
2SD2012
+7.3V(CD)
7.8V 18.1V
8V
D905 R912
C911
1SS133
0.022
C910
47/25
CD GND(D)
GND(M)
3 4
– 34 –
QV13
KTC3200 GR
0V
RV27
10K
CV25
0.022
RV29
0.2(1W)
0V
7
3
42.1V
RV69
9
0.2(1W)
41.1V
RV35
2.2K
RV25 Fusible
100(1/2W)
CV23
47/63
CV24
47/63
RV26
RV71
100(1/2W)
820
Fusible
CV27
1000/6.3
RV63
120K
12
RV70
8
0.2(1W)
2
1
–42V
ICV01
0V
6
RV30
0.2(1W)
CV26
5
0.022
4
0.2V
0V
RV28
10K
0V
KTC3200 GR
Q913
2SB1375
–11.9V –41.4V
–12.4V
R918
100
C901
0.022
C920
47/25
Q902
2SD2012
12.5V
18.8V
13.2V Q901
R903
KTC3199 GR
47(1/6)
13.2V 18.8V
R904
1.5K
13.8V
C904
R902
47/25
C903 1K
47/25
Q906
2SD2012
12.5V 18.8V
Q905
KTC3199 GR
13.2V
18.8V
R910
1
150
13.8V
C909
0.022
2
R909
1K
C908
R908
47/25
33K
D904 D903
1N4004S 1N4004S
F999
Q908
T500mA L 250V
KTC3199 GR
8V
18.1V
47
8.4V
R911
560(1/6)
ZD904
MTZJ8.2C
5
3.9V
DV13
1SS133
0V
DV15
1SS133
3.9V
0V
QV18
KTC3199 GR
0V
3.9V
0
QV19
KTC3199 GR
0V
CV2
47/5
CV30 CV29
3300/63 3300/63
0V
3.9V
DV14
1SS133
QV14
CNPV12
1 2 3 4 5 6 7
CNS903 1 2 3 4 5 6 7
1 2 3 4 5 6 7
BI903
R901
68(3W)
–12.47V
1
Q914
–12.45V
KRC107 M
2
3
ZD901
MTZJ130A
GND
(1/4W)
R907
560(1/4)
1.35V
3
C919
4700/25
6