13
KDC-4551UB/455UW/4651URY
KDC-U449/U5049
X32-6430-00 (1/1), X34-691x-xx (1/4)
A
B
C
D
E
1
2
3
4
5
6
7
CAUTION :
For continued safety, re place safe ty
critical com po nents only with manufacturer’s rec om-
mend ed parts (refer to parts list).
Indicates safety critical com po nents. To reduce the
risk of electric shock, leakage-cur rent or re sis tance
mea sure ments shall be carried out (ex posed parts are
ac cept ably in su lat ed from the supply cir cuit) be fore
the ap pli ance is returned to the customer.
• DC voltages are as measured with a high imped-
ance volt me ter. Val ues may vary slight ly due to
vari a tions between in di vid u al in stru ments or/and
units.
1
1
1
1
2
2
2
3
3
3
4
4
4
3
4.6V
1.6V
3.2V
4.7V
1.6V
1.6V
0V
0V
7.1V
5.0V
5.0V
3.5V
3.0V
3.2V
3.2V
3.5V
7.2V
3.2V
3.0V
3.3V
3.3V
2.2V
0V
3.2V
0V
1.6V
1.9V
1.6V
1.9V
1.9V
1.9V
1.6V
0V
0V
1.5V
0V
1.6V
1.6V
0
1.6V
2.0V
1.6V
3.2V
1.5V
1.6V
0V
1.6V
1.5V
0V
3.3V
1.5V
0V
3.3V
1.5V
1.6V
1.5V
1.7V
1.0V
1.6V
0V
0V
0V
3.0V
1.9V
2.4V
1.6V
0.7V
0V
0V
0V
1.6V
(X32- ) (B/2)
CD PLAYER UNIT (X32-6430-00) (A/2)
OPTICAL PICKUP
IC501
IC540
IC530
IC531
IC532
ELECTRIC UNIT (X34-69xx-xx)
DPU1 (X92-)
CN102
SPINDLE
MOTOR
MOTOR
FEED
LOAD
MOTOR
SW4
REST
SW1
SW2
SW3
TRACKING
COIL
COIL
FOCUS
CN502
D502
D540
DM1 (X92- )
DM2 (X92- )
DM3 (X92- )
CN101
Q540
BTL
SERVO
CD 3.3
CD 1.5
CD 1.5
M
M
M
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
VF2
VCC
VT2
LD
GND
VT1
VC
MD
VR
VF1
GND
TRK-
TRK+
FOCUS+
FOCUS-
VT1
VC
MD
TR-
TR+
FO+
FO-
SL1
SP+
SP-
FE-
FE+
LO-
LO+
REST
SW1
SW2
SW3
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
VT1
VC
MD
TR-
TR+
FO-
FO+
FE+
FE-
SP-
SP+
LO-
LO+
REST
SW1
SW2
SW3
SL2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
VF2
VCC
VT2
LD
GND
VT1
VC
MD
VR
VF1
GND
TRK-
TRK+
FOCUS+
FOCUS-
5
4
3
2
1
6
7
8
9
10
0.1
1
0.1
1
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
VF1
SW3
VCC
SW2
VF2
SW1
VT2
PSW
VT1
VREF
MD
MGND
LOADING-
SPINDLE-
FEED+
FEED-
GND
LD
GND
TRACKING-
T
FOCUS-
FOCUS+
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
S-GND
VCONT
MUTE1
MUTE234
VIN4-
VIN4
VREF-IN
VREF-OUT
REG-OUT
REG-IN
VIN+OP
VIN-OP
VO-OP
VIN3
VIN3-
VIN2
VIN2-
VIN2+
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
FWD
REV
VCC2
VLO-
VLO+
VO4+
VO4-
VO3+
VO3-
VO2-
VO2+
VO1-
VO1+
VCCP1
VCCS
VIN1+
VIN1-
VIN1
66
65
100
R502
R503
100
LO-
LO+
SP+
SP-
FE+
FE-
FO+
FO-
TR-
TR+
0
R515
R514
R504
R508
8.2K
51K
0
GND
37
0.1
100u10
C514
C513
C512
470P
C511
470P
R513
R510
8.2
K
R516
R505 22K
R511
0
0
R507
0
R509
11K
8.2K
R512
R517
8.2K
R506
6.8K
0
R520
10K
C504
0.1
26
29
31
27
68K
R519
33K
R501
0.1
C503
R518 100
38
GND
80
79
78
77
76
75
74
73
72
71
70
69
68
21
22
23
24
25
26
27
28
29
30
31
32
33
34
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
VCOF
PVREF
LPFO
LPFN
TMAX
PDO
VDDM1
SRAMSTB
VSS-1
VDD-1
TEST
RST
FSMONIT
RFZI
RFRP
TEI
AVDD3
FOO
TRO
VSS-3
FMO
FMOS
DMO
VDD1-3
PIO8
VCOI
RVDD3
SLCO
RFI
RFRPI
RFEQO
DCOFC
AGCI
RFO
RVSS3
FNI2
FNI1
FPI2
FPI1
TPI
TNI
VRO
AVSS3
MDI
LDO
VF1
VF2
VT2
VT1
CD MD
R543
0
R541
0
R545
2.2M
C551
R547
R549
1K
C550 10
R548 100K
R550
4.7K
C548
68P
C549
0.1
1
C546
0.015
C547
C545 0.1
C544 3300P
C543
0.01
0.1
C542
C540
0.1
R540
220
2200P
C541
0.1
4.7
26
27
29
31
0.033
C552
C554
390P
C553
680P
C555
C556
0.068
0.047
C557
0
C
0.01
C574
C573 0.1
R574 15K
C572 0.015
R573 330K
C571 47P
C570 0.1
C569 0.1
52
C568 0.1
C567 1
R572 100K
55
R571 10K
GND
CTRL
2
1
VOU
VI
GND
CTRL
2
1
VOU
VI
1
2
CTRL
GND
VI
VOU
LO-
LO+
SP+
SP-
FE+
FE-
FO+
FO-
TR-
TR+
VT1
VF2
VT2
VF1
CD MD
R577
10K
C576
R575
3.3K
R576
10K
49
50
51
48
68
R1 130
B1
0
VREF
VREF
VREF
CD8V
D3.3V
D3.3V
D3.3V
D3.3V
D3.3V
LD
LD
R551
0
R552
0
C558 0.1
1K
44
10K
R534
1500P
4700P
BU1.5V
MGND
+