Service manual
CD-C449W/K449W
– 24 –
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• NOTES ON SCHEMATIC DIAGRAM can be found on page 17.
Figure 24 SCHEMATIC DIAGRAM (3/15)
QU02
KTC3199 GR
QU01
KTC3199 GR
RU95
2.2K
RU96
2.2K
RG10
47K
CG07
22/25
RF77 22K
RF76 1K
RF75 1K
RF73 100
RF71 1K
RF70 1K
RF69 1K
RF68 1K
RF63 1K
RF62 1K
RF03 1K
RF04 1K
RF05 1K
RF09 1K
RF10 1K
RF11 1K
RF12 1K
RF13 1K
RF14 1K
RF08 1K
RF07 1K
RF06 1K
RF81
1K
RF82 1K
RF79 1K
RF80
1K
ICF01
IX0235AW
SYSTEM CONTROL
MICROCOMPUTER
XF01
CG05
15P
CG06
15P
RF17 820
RG04
10K
RF28
1K
RF27
1K
RF25 1K
RF24
10K
RF23
1K
RF22 1K
RF21 1K
RF20 1K
RF19 1K
RF26 1K
RF29 1K
RG56 1K
RF01 1K
RF02 1K
RG38
100K
RG25
10K
RF30
1K
RG16
47K
RG19
47K
RG26
10K
RF67 1K
CH29
0.022
CH15
0.22/50
RH16
470K
DH11
1SS133
CH13
330P
RH14
560K
RH15
33K
CH18
0.22/50
RH24
470K
DH12
1SS133
RH20
1.5K
CH17
0.047
RH21
560K
RH22
33K
CH16
1/50
CH21
0.22/50
DH13
1SS133
RH29
470K
RH25
1.5K
CH20
0.015
RH26
560K
RH27
33K
CH19
0.47/50
CH24
0.22/50
DH14
1SS133
RH34
470K
RH30
1.5K
CH23
0.0047
RH31
560K
CH22
0.1
RH32
33K
CH27
0.22/50
DH15
1SS133
RH39
470K
RH35
1.5K
CH26
0.0012
RH36
560K
CH25
0.027
RH37
33K
ICH11
NJM4558M
MOTOR
DRIVER
RH11
22K
RH12
1K
CH10
47P
RH13
820K
RH17
1.5K
RG01
220K
DH16
1SS133
DH17
1SS133
DH18
1SS133
DH19
1SS133
DH20
1SS133
RF87
47K
RF91
47K
RF97 1K
RF98 1K
RF72 1K
RG11
10K
RG05
10K
RG23
10K
CH28
0.022
RG24 10K
RG08 10K
CH30
0.0056
RF94 1K
RF95 1K
RF96 1K
RG57 10K
RG58 10K
RG59 10K
RF53
47K
RF52
1K
CH12
10/16
GND(A)
+12V(A)
GND(A)
TA_FR SPEED
GND(CD2)
GND(CD1)
GND(D)
+7.3V(CD)
+12V(M)
+4.6V(D)
TUN L
TUN R
(4.0V)
PL6
PL5 (0V)
PL4 (0V)
PL0 (0V)
PL1 (0V)
PL2 (4.0V)
PL3 (4.0V)
PC2
(4.0V)
PC5
PC3
PC4 (4.0V)
(4.0V)
PC1
(4.0V)
PC0
PB7
(3.8V) PB6
PB5
(4.0V) PB4
(0V) PB3
(0V) PB2
(4.0V) PB1
(0V) PA6
(4.0V) PA5
(4.0V) PA4
PA3 (4.0V)
PA2 (4.0V)
(4.0V) PA7
PB0
PA1 (4.0V)
PA0
(4.0V)
VDD1
(4.0V)
CF2
(2.0V)
CF1
(1.7V)
VSS1
(0V)
P74
(0V)
P75
(0.4V)
P07
(0V)
P17
(4.0V)
P16
(0.6V)
P06 (0V)
P05 (0V)
P34
P35
P00
P01
P02 (8.8V)
P03 (4.0V)
P04
P30
P31
VSS3
VDD3
P32
P33 (4.0V)
SCK
(4.0V)
SO1
(0V)
SCK1
(4.0V)
SO0
(0V)
Si0
(4.0V)
AN0
(0.4V)
AN1
(0.4V)
AN2
(0.4V)
AN3
(0.4V)
AN4
(0.4V)
AN5
(0V)
AN6
(0V)
AN7
(0V)
INT1
(4.0V)
INT2
(4.0V)
INT3
(0V)
SI1
(0V)
INT0
(0V)
GND(
µ
+4V(µ-
C
RES(MAIN)
(4.0V)
(1/2)
8
4
1
3
2
+
–
7
(2/2)
5
6
–
+
16KHz
SPE-1
SPE-2
SPE-3
SPE-4
SPE-5
RWC
CD RES
–15V
+12V(A)
GND(A)
63Hz
250Hz
1KHz
4KHz
CG61
0.022
RF61
22K
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
10
11
12
13
14
2
3
4
5
6
7
8
9
1111
10
2
3
4
5
6
7
8
9
10
1
1
BIF13
(4.0V)
PF7
(3.8V)
PF6
(4.0V)
PF5
(4.0V)
PF4
(3.8V)
PF3
PF2
(3.8V)
PF1
(0V)
PF0
(4.0V)
PE7
(0V)
PE6
(4.0V)
PE5
(0V)
PE4
(4.0V)
PE3
PE2
PE1
PE0
(0V)
PD7
(3.6V)
PD6
PD5 (DI)
80
79 78
77
76
7
5
74
73
72
71
70
69
68
67
66
65
81
82
83
81
82
83
84
85
86
87
88
89
90
64
63
62
61
60
59
58
57
56
55
54 53
52
51
PD4
PD3
PD2
PD1
PD0
(8.0V)
PC7
(0V)
VSS2
(8.0V)
VDD2
PC6
(DO)
4SP2A/NA
50
49
48
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
33
32
31
30
29
28
27
26
25
24
23
22
2120
19
18
17
16
15
14
13
12
11
10
9
8
1
2
3
4
5
6
7
100
99
98
100
99
98
97
96
95
94
93
91
92
RF65 1K
RF64 1K
2
3
4
5
6
1
2
3
4
5
6
1
BIF11
CNSD01
+B
+B
+B
+B
+B
CNSF11
+12V(M)
GND(CD)
CD R-CH
CD L-CH
GND(Au)
DISC2NO
UP/DOWN
RWC
WRQ
RES
D2GND
CQCK
SQOUT
COIN
SLD+
SLD–
PUIN
OP/CL
DRF
+7.3V(CD)
CNP11
TO CD SERVO PWB
P23 11-C
CNP12
TO CD SERVO PWB
P23 8-H
CNSF12
BIF12
+B
+B
+B
–B
+B
+B+B
+B
+B
+B
+B
+B
REC L-CH
REC R-CH
PRE L-CH
PRE R-CH
+B
26
25
24
23
22
21
20
18
19
17
16
15
14
13
TA_T1/T2
GND(BIAS)
PB_MUT
TA_BIAS
+12V(A)
GND(A)
REC L-CH
REC R-CH
PRE L-CH
PRE R-CH
+B
1
2
3
4
5
6
7
8
9
10
11
12
M +12V
M_GND
TA_MOT_SW
TA_SOL
T2_A_FP
TA_CAM_SW
T1_RUN
T2_RUN
T2_B_FP
MECHA SECTION
P29 12-C
DECK SECTION
P29 12-D
HIGH_SP
REC_MUT
TA_PB-EQ
TA_R/P
+B
CL
(µCON SIDE DI)
GND(D)
+12V(A)
CE(CE1)
(µCON SIDE DO)
DO
DI
GND(A)
TUN MUTE
L-CH
R-CH
CNSF13
+B
CNP303
TO TUNER PWB
P33 11-H
1
CNPF01
2
3
4
5
6
7
8
9
10
TO DISPLAY PWB
P30 1-D
DATA1
+12V(M)
GND(D)
GND(D)
STB
SCK1
+4.6V(D)
COM1
RESET
VSS
VDD
VDD
CF2
CF1
VSS
RES
COM
DAT
SCK
STB
DS_RES
WRQ
CQCK
DRF
MIC_DET
SP_16K
TUN_SM
9K/10K
POSISTOR
T1_RUN
TAPE_SO
L
HIGH_SP
TA_BIAS
TA_R/P
PB_MUT
TA_T1/T2
REC_MU
T
VSS
VDD
FR SPEED
(
TA MOT
O
CAM_SW
T2_CRO
S
T1_CRO
S
T2_B-FP
S
T2_A-FP
S
SP LEVEL
PUIN
SYS_STOP
SP PROT
FRNT_RL
Y
FAN CON
T
T2_RUN
BEAT_C
U
SLD–
SLD+
COIN
SQOUT
CD MUTE
POWER
CENT MUTE
REAR MUTE
SYS MUTE
TUN_MUTE
B
ENA
CE
SD
DI
DO
PASS
CL
AMP
SP_4KHz
SP_1KHz
SP_250Hz
SP_63Hz
CENT/REAR RLY
H/P SW
S/N
SRS_A/NA
DOL_A/NA
S.W_ANA
CD UP/DOWN SW
CD DISC No.SW
CD OP/CL SW
RF92
47K
0V
0V
0V
0V
0V
0V
DG06
1SS133
SWF02
SPAN
SELECTOR
QG04
KTA1266 GR
CG08
0.001
10/100
9/50
CD-K449W
ONLY
CD-C449W
ONLY
CD-K449W
ONLY
0V
0V
0V
0V
0V
0V
12.5V
-11.9V
4.1V
3.8V
0V
T1_CRO2
T2_CRO2