Kenwood KDC-305RG Service Manual page 11

S T
(X32-5010-00)
0V 51
CSEL
52
TEST1
53
TEST2
54
IOSEL
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
X1 67
SW1 20
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 DVDD2
74
NC
75
D.5V SW
NC
D.GND 14
Q4
R47
10K
4.8V
CP3 100
MUTE R 13 87
MUTE L 12 86
CP2 100
MRST 11 89
MSTOP 10 91
MOTOR SW
to
MAIN
Q5
PON SW
UNIT
D2
CN1
A.8V SW
R328
Q3
200
A.+8V 9
8.0V
2.5V
IC6
(1/2)
R107
8 6 2.5V
330 7
Lch 8
5
ACTIVE
FILTER
2.5V
A.GND 7
R108 2.5V
3
330 2.5V
1
Rch 6 2
4
R122 R118
IC6
20K 20K
(2/2)
R126
20K
LO/EJ 5
MOTOR 4
S.7.5V 3
S.GND 2
SW3 1
CAUTION:For continued safety, replace safety critical components only
with manufacturer's recommended parts (refer to, parts list).
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.
U V
C25 C29
0.015 0.1
0V
PLLF
1.8V
IREF
4.8V
0V
5V
0V
DSLF
DRF
VREF
RFENV
IC2
CD SIGNAL
PROCESSOR
bult in u-COM.
TBAL
FBAL
AVDD3
AVSS3
LDON
5V VDET
5.0V 0V
RFDET
BDO
0V
R52 C46 R54
100K 0.047 100K
C85
D3
0.1
Q2
R125
20K
R121 R117
20K 20K
R102
3.3K
S3
DOWN & LIMIT
SWITCH
DC voltages are as measured with a high impedance voltmeter. Values may
Indicates
vary slightly due to variations between individual instruments or/and units.
W X
C23
ARF
1000P
R36 C26
25 150 1
R34
68K
24 1.4V
RF
AMP
23 2.5V
IC1
22 0V
21
ARF
20 2.5V
0V or 5.0V
19 2.5V
19
18
NC
17
NC
16
NC
15 2.5V
TE 15
14
NC
13
FE
NC
TE
12 2.5V
FE 12
11 3.0V R17
TE
11
36K
10 2.5V
10
9 5.0V
R18 C16
3.9K 220P
8 0V
15
7
NC
6
NC
5 C14
R218
4700P
4 0V 47K
47
4
3 0V
3
2 0V
OFT 2
1 0V
1
92
GAIN
CONTROL SW
D4
TVD
R72 C43
R76 6.2K 1K 0.015
2.0V
5.0V
TRK+
4.0V
4ch BTL
2.5V
2
DRIVER
4.0V
1
IC4
TRK-
FCS+
C45
4.0V
0.015
27
ECS
4.0V
26
FCS-
R77 R78
56K 24K 8.0V
CD MECHANISM
Y Z
RF
R11 C5 R12
6.8K 33P 4.3K
C4
10u6.3
+
C7 C6
APC
0.1 3P
5.0V
Q1
0.8Vpp
2.5V
0.1V
IOP-
1.2Vp-p 0.8Vp-p
IOP+
2.5V
D1
31
R19
33K
32
29
C18
470P
30
FE
6
1
R5 150
27
28
27
2
1
26
LOAD
(X92- )
SLED+
DM2
M
12
11
EJECT LOADING & SLED
SLED- MOTOR
IC1 : AN22000AA
IC2 : MN662774KG1
IC4 : BA5917AFP
IC6 : NJM4565MD
Q1 : MCH6101
(X92- )
SPDL- Q2,5 : DTC124EUA
DM1 Q3 : DTA143XUA
Q4 : 2SA1362(Y)
M
18
D1,2,4 : DAN202U
17
D3 : DA204U
SPINDLE
D5 : MA8051-L
MOTOR
SPDL+
SIGNAL LINE
B LINE
DXM-1062Y
KDC-305RG/3018R/3090R/A/G/YA/YG
AA
1
(X92- )
PU1
(T25-0215-05)
2
OPTICAL
PICKUP
CN1
1 D
2 B
3 C
4 A
5 GND
3
6 LD
7 PD
8 VR
9 VC
10 VCC
11 F
12 E
13 FCS+
14 TRK+
15 TRK-
16 FCS- 4
5
6
7