Kenwood KDC-Z727 Service Manual page 17

A B
(X32-5030-01)
Q Q
3 7 6 3 1 5 1 5 0
1
C33
0.1
0V
2 5.0V
S2 :
12cm DISC
DET.SWITCH
S1 :
LOAD DET.
SWITCH
CN2
0V
D.OUT 22
S2
SW2 21
S1
5.0V
SW1 20
5.0V
3 CP1 100
X1
CLK 19 94
16.93MHz
DATA 18 93
MECHA 17
Q4
NC 16
D.5V
SW
R47
10K
BU+5V 15 +5V +5V
T E
L 1 3 9 4 2 2 9 6 5 1 3
4
Q5
D.GND 14
MOTOR
SW
CP3 100
MUTE R 13 87
MUTE L 12 86
to
CP2 100
CN5
MRST 11 89
(X25- )
D2
Q2
MSTOP 10 91
5
P ON SW
A.8V SW
Q3
A.+8V 9
8.0V
R125
20K
3.8V R121
R107
8 20K
6
330 7
Lch 8 5
IC6
ACTIVE
(1/2)
FILTER 3.2V
6 A.GND 7
IC6
3.2V
(2/2)
R108
3
330 3.8V 1
Rch 6 2
4
R122
20K
w w w R126
20K
LO/EJ 5
MOTOR 4
S.7.5V 3 +7.5V .
S.GND 2
SW3 1
7
CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts
list).
Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be
!
C D
+5V
+5V
C25 C29
0.015 0.1
51
CSEL
52
TEST1
53
TEST2
54
4.8V
IOSEL
55 0V
5V
NRST
56 0V
BCLK
57
LRCK
58
SRDATA
59
SUBC
60
SBCK
61
DQSY
62
DEMPH
63 IC2
TX
CD SIGNAL
PROCESSOR
64
PSEL bult in u-COM.
65
MSEL
66
SSEL
67
DVDD1
68
X1
69
X2
70
DVSS
71
XSUB1
72
XSUB2
73
DVDD2
74
NC
75
NC
0V
R52 C46 R54
100K 0.047 100K
C85
D3
0.1
+5V +5V
S3
DOWN & LIMIT
SWITCH
5V AVR
5.0V
IC5
+8V IN OUT
GND
C55
0.1
0V
R117
20K
+5V
R118
20K
C72
470P
x a o
y
i +7.5V
E F
+5V
8
+5V
0V
R36 C26
25 150 1
PLLF
R34
1.8V
68K
24
IREF RF
C24
AMP
1.4V
0.022
IC1
23 2.5V
DSLF
22 0V
DRF
21
ARF
20 2.5V
VREF
19 2.5V
RFENV 19
18
NC
17
NC
16
NC
15 2.5V
TE 15
14
NC
13
FE
NC
2.5V
12
FE 12
11 3.0V
TBAL 11 TE
10 2.5V
FBAL 10
9 5.0V
AVDD3
8 0V
15
AVSS3
7
NC
6
NC
5
R218
LDON
47K
4 0V
47
VDET 4
5V 3 0V
RFDET 3
0V
2 0V
OFT 2
1 0V
BDO 1
Q Q
3 7 6 3
92
D4
TVD
R76 6.2K
2.0V
5.0V
+5V
4ch BTL
DRIVER
IC4
C45
0.015
ECS
R77
u 1 6 3
56K R78 24K
8.0V
C41
2.2
.
carried out (exposed parts are acceptably insulated from the supply circuit)
before the appliance is returned to the customer.
• DC voltages are as measured with a high impedance voltmeter. Values
may vary slightly due to variations between individual instruments or/and units.
G H
+5V
2 4
9 9 8
C23 ARF
1000P
+5V +5V
R12
9.1K
RF
R11
10K
Q1
C7 C6 APC
0.1 2P
0.1V
2.5V 5.0V
0V or 5.0V
0.8Vp-p
1.2Vp-p
2.5V
TE
R17 R19
43K 51K
R18 C16 C18
3.9K 150P 220P
FE
C14
4700P
1 5 1 5 0 8 9 2 4
+5V +5V
LOAD
SLED+
R72 C43
1K 0.015 DM2 (X92- )
M
12
TRK+ 11
4.0V
2.5V
2
4.0V
EJECT LOADING & SLED
1
SLED- MOTOR
TRK-
FCS+
4.0V
27
4.0V
26
SPDL-
FCS- DM1 (X92- )
m
M
18
17
c o
SPINDLE
MOTOR
SPDL+
I J
2
9 9
Q1
DPU1 (X92-)
IOP-
OPTICAL
PICKUP
IOP+
D1
C3
4.7
CN1
31 1 D
32 2 B
29 3 C
30 4 A
5 GND
6 6 LD
1 7 PD
R5 360
8 VR
9 VC
9 8 2 9 9
+5V 10 VCC
27 11 F
28 12 E
27 13 FCS+
2 14 TRK+
1 15 TRK-
26 16 FCS-
IC1 : AN22000AA
IC2 : MN662773KF1
IC4 : BA5917AFP
IC5 : TA78L05F
IC6 : NJM4565MD
Q1 : MCH6101
Q2,5 : DTC124EUA
Q3,4 : 2SA1362(Y)
D1,2,4 : DAN202U
D3 : DA204U
SIGNAL LINE
B LINE
+B
KDC-Z727,Z727