Service manual
– 31 –
CD-C449W/K449W
7
8 9 10 11 12
Figure 31 SCHEMATIC DIAGRAM (10/15)
52
XD01
LD01
2.2µH
CD06
0.001
SWD01
VOL JOG
CD07
0.001
CD08
0.001
SWD02
JOG
CD02
100/10
RD36
1K
RD40
1K
RD39
1K
RD41
1K
RD42
1K
RD44
1K
RD38
1K
RD37
1K
RD43
1K
RD35
1K
RD34 820
RD33
1K
RD32
1K
RD31
1K
ICD01
IX0234AW
LF DRIVER AND
CONTROLLER
RD64
10K
RD65
10K
RD60
10K
RD61
10K
RD45
1K
LEDD25
LEDD26
LEDD27
LEDD28
LEDD23
LEDD24
RD70
820
RD71
820
RD72
820
QD12
KRC107 M
QD11
KRC107 M
QD10
KRC107 M
RD28
1K
RD30
47K
FLD01
FL DISPLAY
RD27
1K
RD66
8.2K
RD62
8.2K
RD67
2.2K
D01
1K
RD26
1K
SWD53
DISC
SKIP
SWD52
DISC3
SWD51
DISC2
SWD50
DISC1
RE56
3.9K
RE55
2.2K
RE54
1.8K
SWD54
OPEN/CLOSE
RE57
5.6K
CD01
0.022
REMOCON
VDD
VSS
JOG DOWN
JOG UP
VDD
–29(VP)
XCOUT
XCIN
VOL JOG DOWN
VOL JOG UP
P30
P31
P32
P33
P34
P35
P36
P37
INT0
/RES
P74
P75
VSS1
CF1
CF2
VDD1
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
INT1
INT2
INT3
S0
VDD3
S1
S3
S2
31
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
VP
S16
S17
S18
S19
50
5153545556575859606162636465666768697071727374757677
7
8
81
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
SCK1
PG0
S45
S44
S43
S42
S41
S40
VDD4
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
S22
S21
S20
RESET
VDD
DISC2
DISC1
DISC3
DISC 3
DISC 2
DISC 1
DISC 1
DISC 2
DISC 3
G12
G12
G11
G10
G9
G8
G7
G6
G5
G4
G3
G2
G1
S27
S26
S25
S23
S22
S21
S20
S19
S18
S17
S16
S15
S14
S13
S12
S11
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
S19
S27
S26
S25
S24
S23
S22
S21
S20
S18
S17
S16
S15
S14
S13
S12
S11
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
F1
NC
NC
KEY4
KEY1
KEY2
KEY3
KEY5
KEY6
TUN-SET
AUD-SET
R PLAY
FL-SET
DISK 1
DISK 2
DISK 3
U
AL-G
U
AL-R
N
T-G
-
R
-
G
N
T-R
R
MAL-G
R
MAL-R
R
EO-G
R
EO-R
S24
LEDD23~LEDD28
LMKD515B
1G
2G
8G
7G
6G
5G
4G
3G
9G
10G
11G
12G
NC
NC
F2
F2
REW
3
4
5
6
7
8
9
100
50
2 3 4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47
+B
+B
+B
1
2
3
1
2
3
1
2
3
+B
FWD01
1 6
6 1
SWITCH PWB-C2
DISPLAY PWB-C1
SWD39
VIDEO/AUX1
SWD40
VIDEO/AUX2
SWD41
TAPE
1/2
SWD42
TUNER/BAND
SWD43
CD
RE42
1K
RE43
1.2K
RE44
1.8K
RE45
2.2K
RE53
1.2K
RE52
1K
SWD48
POWER
RE41
8.2K
RE51
8.2K
KEY5
KEY6
C
D05
0
.001
RE01
8.2K
RE11
8.2K
RE21
8.2K
RE31
8.2K
KEY1
KEY2
KEY3
KEY4
+B
SWD49
KARAOKE
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
JOG PWB-C4
(0V)
(0V)
(0.6V)
(10.8V)
(10.8V)
(–6V)
V
)
(10.8V)
(9.0V)
(0.4V)
(0V)
0
V)
1V)
(0.6V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(4V)
(4V)
(4V)
(4V)
(4V)
(4V)
(4V)
(4V)
(4V)
(4V)
(4V)
(3.5V)
(0V)
(0V)
(0V)
(0V)
(0.4V)
(1.7V)
(1.9V)
(0V)
0V
(0V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–29V)
(–26V)
(–30V)
(–21V)
(4.0V)
(–30V)
(–30V)
(–26V)
(–28V)
(–23V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(0V)
(–28V)
(–28V)
(–28V)
(–28V)
(–28V)
(–26V)
(–30V)
(–30V)
(–30V)
(–30V)
(–30V)
(–30V)
(–30V)
(–30V)
(–30V)
(4.1V)
(–21V)
CD-K449W
ONLY