Service manual
CD-C449W/K449W
– 26 –
Figure 26 SCHEMATIC DIAGRAM (5/15)
A
B
C
D
E
F
G
H
1
23456
• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.
ICS01
SRS5250AS
SRS
CS14
100/16
CS15
100/16
CS16
0.047
(ML)
CS18
0.0047
RS29
33K
RS28
100K
RS27
3.9K
RS26
1.5K
RS30
4.7K
RS23
2.2K
RS13
4.7K
QS14
KRC107 M
CS12
2.2/50
CS11
2.2/50
RS14
100K
RS16
1K
RS15
1K
Q
S
2SK2
4
CS13
100/16
RS33
100K
RS34
100K
RS20
10K
RS22
10K
RS18
10K
QS11
KRC107 M
QS12
KRC107 M
QS13
KRC107 M
QS15
KTC3203 Y
CS22
4.7/50
RS12
1K
CS21
4.7/50
RS11
1K
RS32
1.5K
QS16
2SK246 G
R
DS03
1SS133
CS19
0.33/50
RS31
4.7K
CS17
0.47/50
(ML)
RS25
47K
RS24
22K
RP27
8.2K
4
3
2
1
RP22
100
RP21
100
8
5
6
7
RP18
8.2K
RP17
8.2K
CP19
0.082
(ML)
CP20
0.082
(ML)
CP15
0.082
(ML)
CP16
0.082
(ML)
ICP11
(1/2)
CP07
100P
CP08
100P
CP18
47P
CP17
47P
RP16
100K
RP15
100K
RP12
100
RP11
100
QP11
KTC3199 GR
QP12
KTC3199 GR
CP26
0.001
CP25
0.001
RP30
5.6K
RP29
5.6K
RP73
22K
RP28
8.2K
CP27
0.022
CP57
22/25
CP28
0.022
CP23
10/16
RP25
1K
CP24
10/16
RP26
1K
RP20
2.2K
RP19
2.2K
CR13
390P
CR14
390P
RR17
2.7K
RR18
2.7K
CR11
390P
CR12
390P
RR13
1.8K
RR14
1.8K
JR12
JR11
CR10
0.001
RR16
27K
RR15
27K
RR11
27K
RR12
27K
DR11
1SS133
DR12
1SS133
RP09
100K
RP10
100K
VCC
PN_IN
L_IN
R_IN
MODE
C_OUT
C_IN
CL3
CL4
CL2
CL1
Vref
L_OUT
CR1
SRS INH
TO MAIN SECTION
P25 12-C
GND(A)
SRS PASS
OUT(R)
OUT(L)
IN(R)
IN(L)
–
+
+
–
ICP11
(2/2)
R CH
L CH
INPUT
VIDEO/AUX-2
INPUT
VIDEO/AUX-1
GND(A)
GND(A)
VF1
VF1
VF2
VF2
–38(VP)
–38(VP)
0V
0V
3.7V
1
2
3
0V
0V
12.5V
12.5V
0V
0V
1.9V
0V
0V
12.6V
12.5V
1
2
3
1
2
3
1
2
3
5.9V
0V
5.9V
5.9V
5.9V
5.9V
5.9V
0V
5.9V
5.9V
5.9V
5.9V
11.9V
5.9V
5.9V
0V
0.7V
0V
0V
0V
0V
0.7V
11.8V
0V
0V
0V
0V
–11.2V
0V
0V
1234
5
6
7
8
9
10 11 12 13 14
1516
17
18192021
222324
25
26
27
28
5.9V
1
WTP02
1
WTP01
2
2
3
3
60
61
62
63
64
66
69
68
SRS B
67
SRS A
65
+12V(A)
+B
+B
+B
D
S
G
M
S-MUTE
+B
–B
ICP11
NJM4565M
BUFFER AMP.
43
S-MUTE
33
34
35
303132
272829
R-CH IN
GND(A)
L-CH IN
L-CH
L-CH
R-CH
R-CH
VIDEO-1
L-CH
R-CH
L-CH
R-CH
TO DISPLAY PWB
P30 1-B
FWD02
TO POWER PWB
P35 8-H
FW901
MAIN PWB-A(3/4)
11.9V
CR2
CR3
CR4
S_OUT
S_IN
C6
C5
C4
C3
C2
C1
PN_OUT
GND
R_OUT
VIDEO-2
TO MAIN SECTION
P25 7-H
TO MAIN
SECTION
P25 10-H