Optical Pick-Up - Kenwood KDC-3025 Service Manual

F
RFENV
R41
47K
C45 0.1
C44 1000P
1.25V
C43 2200P
20
1.70V IREF
19
R40 C42
0V PLLF2
820 0.047
18
PLLF
R39 100K
17
C41
0.87pp RFSW
1000P
16
ARF
15 2.45V
DSLF
14 0V
AVSS2
13
4.80V DVSS1
12
DVDD1
R38 C40
0-4.8V
220K 0.015
11
DSLB
10 4.80V
0V LDON
9
BDO 9
8
OFT 8
7
2.40V NRFDET 7
6
FBAL 6
5
TBAL 5
4
PWM 4
CP4
4.7Kx4
3
2.35V PC
2
SPL 2
1
2.40V
TVD 1
CP3
2.40V
C48
1.8Kx4
6800P
C50
6800P
R45
10K
TRK
R51
10K
C51
1500P
IC3
4ch BTL
DRIVER
2.35V
C49
1500P
FCS
R47
2.2K R48
79
10K
R33
SPDL
18K
2
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.
G
C3
1
RF
AMP
IC1
2.50V
VDET
R8 R11
27K 33K
2.50V B/TE
R10 C13 C16
100K 270P 330P
C14 R35
4700P 39K
D3
R53 R52
D.5V
4.7K 4.7K
Q6 Q5
Q5,6
CURRENT
AMP
D.GND
S.GND
SLED
R32
10K TRK IN
C37
0.01
TRK OUT
FCS UP
C38
0.01
FCS DOWN
R34 C61
10K 2.2
S.7.5V
H
KDC-3025/325/5026/G
ARF
C2
2.2
IOP+
R7 3.6K
RF
C7 R6
0.1 3.3K
C5
2P
0.95pp
0.91pp
4
Vref
SLED OUT
/LOAD
DM2 (X92- )
M
19
18
17
SLED IN
LOADING & SLED
16
/EJECT
MOTOR
S4
X32-5390-00 NO
YES
X32-5390-01
15
SPDL-
DM1 (X92- )
14
M
12
13
SPINDLE
SPDL+
MOTOR
KDC-3022, 322, 5023R (1/3)
KDC-5024/V/Y/YV (1/3)
KDC-507, 5094RY (1/3)
I J
R4
IOP-
10
Q1
APC
D1
R15
4.7K
2.00V
CN1
4.80V
1 VCC
2.50V
2 VC
0V
3 GND
R1
4 LD
91
0V
5 VR
0.17V
6 PD
2.69V
CD 7 C+D
2.50V
E 8 E
2.69V
A 9 A
2.69V
B 10 B
2.69V
F 11 F
0V
12 GND
3.84V
15 13 FCS+
3.81V
17 14 TRK+
3.81V
16 15 TRK-
3.84V
14 16 FCS-
DPU1
(X93- )
OPTICAL
PICKUP
DIGITAL LINE
SIGNAL LINE
GND LINE
B LINE
IC1 : AN22002AA
IC2 : MN6627771KP
IC3 : BA5824FP
IC4 : NJM4580M1
Q1 : MCH6101
Q2 : 2SA1362(Y)
Q3 : DTC124EUA
Q4 : DTA143XUA
Q5 : 2SC4081
Q6 : 2SA1576A
D1 : DAN202U
D2 : MA8051-L
D3 : DA204U
X32-5390-00 (2/2)
1
2
3
4
5
6
7
17