Kenwood DPX-4020 Service Manual page 15

A B
(X32-5010-00)
1
0V 51
CSEL
52
TEST1
53
TEST2
54
IOSEL
2
5.0V 55
NRST
56
BCLK
57
LRCK
58
SRDATA
59
S2 : 12cm DISC SUBC
60
DET.SWITCH
SBCK
S1 : LOAD DET. 61
DQSY
SWITCH
62
CN2
DEMPH
0V 63
D.OUT 22 TX
64
S2
PSEL
65
SW2 21 MSEL
S1
5.0V 66
SSEL
20 X1 67
SW1
3 DVDD1
16.93MHz
68
X1
CP1 100
CLK 19 94
69
X2
DATA 18 93
70
DVSS
71
MECHA 17
5.0V XSUB1
72
NC 16 XSUB2
73
BU+5V 15 BU5V DVDD2
74
NC
75
D.5V SW
NC
D.GND 14
Q4
BU5V
R47
10K
4.8V
4
CP3 100
13 87
MUTE R
MUTE L 12 86
CP2 100
MRST 11 89
MSTOP 10 91
MOTOR SW
to BU5V
MAIN
Q5
UNIT
D2
CN1
A.8V SW
5
Q3
A.+8V 9 A8V
8.0V
2.5V
IC6
(1/2)
R107
8
6
330
7
Lch 8 5
ACTIVE
FILTER
A.GND 7
R108
3
330 2.5V
1
6
Rch 6 2
4
IC6
(2/2)
LO/EJ 5
MOTOR 4
S.7.5V 3 A7.5V
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
!
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.
C D
D5V
BU5V
C25 C29
0.015 0.1
1.8V
4.8V
0V
5V
0V
IC2
CD SIGNAL
PROCESSOR
bult in u-COM.
5V
5.0V 0V
0V
R52 C46 R54
100K 0.047 100K
C85
D3
0.1
BU5V
Q2
PON SW
R328
200
A8V
R125
20K
R121 R117
2.5V 20K 20K
R102
3.3K
2.5V
2.5V
R122 R118
20K 20K
R126
20K
A7.5V
S3
DOWN & LIMIT
SWITCH
E F
D5V
BU5V
C23
1000P
0V
R36 C26
25 150 1
PLLF
R34
68K
24 1.4V
IREF
RF
AMP
23 2.5V
IC1
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
12 2.5V
FE 12
11 3.0V
TE
TBAL 11
10 2.5V
FBAL 10
9 5.0V
AVDD3
8 0V
15
AVSS3
7
NC
6
NC
5
R218
LDON
4 0V 47K
47
VDET 4
3 0V
RFDET 3
2 0V
OFT 2
1 0V
BDO 1
92
D5V
GAIN
CONTROL SW
D4
TVD
R72
R76 6.2K 1K
2.0V
5.0V
4.0V
4ch BTL
2.5V
DRIVER 4.0V
IC4
C45
0.015
ECS
R77 R78
56K 24K 8.0V
A7.5V
G H
D5V
ARF
D5V
RF
R11 C5 R12
6.8K 33P 4.3K
C7 C6
0.1 3P
5.0V
0.8Vpp
2.5V
0.1V
IOP-
1.2Vp-p 0.8Vp-p
0V or 5.0V
IOP+
2.5V
D1
TE
R17 R19
36K 33K
R18 C16 C18
3.9K 220P 470P
FE
C14
4700P
D5V
LOAD
(X92- )
SLED+
C43
0.015 DM2
M
12
TRK+
11
2
LOADING & SLED
1 EJECT
SLED- MOTOR
TRK-
IC1 : AN22000AA
IC2 : MN662774KG1
IC4 : BA5917AFP
FCS+
IC6 : NJM4565MD
4.0V
27
4.0V
Q1 : MCH6101
26
(X92- )
SPDL-
Q2,5 : DTC124EUA
FCS- DM1 Q3 : DTA143XUA
Q4 : 2SA1362(Y)
M
18
D1,2,4 : DAN202U
17
D3 : DA204U
SPINDLE
D5 : MA8051-L
MOTOR
SPDL+
+B
I J
D5V
C4
10u6.3
+
APC
Q1
(X92- )
PU1
(T25-0215-05)
OPTICAL
PICKUP
CN1
31 1 D
32 2 B
29 3 C
30 4 A
5 GND
6 6 LD
1 7 PD
R5 150
8 VR
9 VC
D5V 10 VCC
27 11 F
28 12 E
27 13 FCS+
2 14 TRK+
1 15 TRK-
26 16 FCS-
SIGNAL LINE
+B LINE
DPX-4020