Sharp CD-C449W Service Manual page 28

CD-C449W/K449W
A
IN(L)
60
61
IN(R)
OUT(L) 62
OUT(R)
63
GND(A) 64
+B
+12V(A) 65
B
66
SRS PASS
SRS A 67
68
SRS B
69
SRS INH
C
D
TO POWER PWB
P35 8-H
FW901
E
TO DISPLAY PWB
P30 1-B
FWD02
F
G
H
• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.
1
RS20
QS13
KRC107 M
3
12.5V
2
0V
QS12
KRC107 M
1 0V
0V 12.5V
2
3
1
0V
2
0V
3
1.9V
QS11
1
KRC107 M
0V
MAIN PWB-A(3/4)
WTP01
VF1 1
–38(VP) 2
3
VF2
VF2 3
–38(VP)
2
VF1 1
WTP02
JR12
CR13
390P
L-CH
RR15
INPUT
27K
VIDEO/AUX-2
RR16
27K
R-CH
CR14
390P
JR11
CR11
390P
L-CH
RR11
INPUT
27K
VIDEO/AUX-1
RR12
27K
R-CH
CR12
390P
DR12
1SS133
TO MAIN SECTION
2
Figure 26 SCHEMATIC DIAGRAM (5/15)
3.7V 0V
3 2
QS14
1
0V
KRC107 M
CS21
4.7/50
+B
CS22
QS15 4.7/50
KTC3203 Y
12.6V 11.9V
RS22
10K 10K
RS23
2.2K
RS18
10K
CS14 CS15
100/16 100/16
CS16
0.047
(ML)
+B
RP11
100
L CH
RP15
100K
RP16
RP12
R CH
RR17
2.7K
RR18
2.7K
RR13
1.8K
RR14
1.8K
32 31 30 34
29 28 27 35 33
VIDEO-2
VIDEO-1
TO MAIN
P25 7-H
SECTION
P25 10-H
3 4
– 26 –
RS34
RS33
100K 100K
RS11
1K
RS12
1K
28 26 24 23 22
27 25
ICS01
SRS5250AS
SRS
1 2 3 4 5 6 7
11.9V
RS29
33K
RS28
100K
RS24 RS26
22K 1.5K
CS18
RS25
0.0047
47K
RS27
CS17
3.9K
0.47/50
(ML)
ICP11
NJM4565M
BUFFER AMP.
CP19
CP15
0.082 0.082
11.8V
(ML) (ML)
8
5 +
0V
ICP11
7
(1/2)
0V
6 –
RP17
0V
RP21
8.2K
100
RP19
2.2K
CP07
100P
CP08
100P
CP18 RP20
47P 2.2K
100K
RP22
RP18
100
8.2K
0V
–
2
0V
ICP11
1
(2/2)
100
0V
+
3
4
CP16 CP20
–11.2V
0.082 0.082
(ML) (ML)
5
M
CS12
CS11
2.2/50
2.2/50
CS13
100/16
RS16
1K
21 20 19 18 17 16 15
QS
2SK24
8 9 10 11 12 13 14
CS19
0.33/50
RS32
1.5K QS16
5.9V
2SK246 GR
D
G
RS30
4.7K
0V
5.9V
S
DS03
RS31
1SS133
4.7K
+B
CP27
CP23
0.022
10/16
QP11
RP25
KTC3199 GR
1K
0V
RP27 0.7V
8.2K
0V
RP29
5.6K
RP28
8.2K
RP30
0V
5.6K
0.7V
CP24
0V
QP12
10/16
KTC3199 GR
RP26
1K CP28
0.022
–B
RP73
22K
CP57
22/25
43
6