Optical Pick-Up - Kenwood KDC-5027 Service Manual

F
QQ
3 7 63 1515 0
RFENV
C45 0.1
C44 1000P
1.25V
C43 2200P
20
1.70V IREF
19
R40
0V PLLF2
820
18
PLLF
R39 100K
17
0.87pp RFSW
16
ARF
15 2.45V
DSLF
14 0V
AVSS2
13
4.80V DVSS1
12
DVDD1
R38
0-4.8V
220K
11
DSLB
10 4.80V
0V LDON
9
BDO
8
OFT
7
2.40V NRFDET
6
FBAL
5
TBAL
4
PWM
CP4
4.7Kx4
3
2.35V PC
2
SPL
1
2.40V
TVD
CP3
2.40V
C48
TE
1.8Kx4
L 13942296513
6800P
C50
6800P
IC3
4ch BTL
DRIVER
2.35V
FCS
R47
2.2K
79
R33
SPDL
18K
2
www
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
R41
RF
47K
AMP
IC1
C42
0.047
2.50V
C41
1000P
VDET
C40
0.015
2.50V B/TE
R10
100K
9
8
C14
4700P
7
6
5
4
2
1
D3
R53 R52
4.7K 4.7K
Q6 Q5
R45
10K
D.GND
S.GND
TRK SLED
R51 R32
10K 10K
C51 C37
1500P 0.01
C49 C38
1500P 0.01
R48
10K
R34 C61
10K 2.2
S.7.5V
x ao
y
i
H
8
ARF
C2
2.2
R7 3.6K
RF
C7 R6
0.1 3.3K
C5
2P
0.91pp
R8 R11
27K 33K
C13 C16
270P 330P
R35
39K
4
D.5V
Q Q
Q5,6
3 6 7 1 3
CURRENT
AMP
SLED OUT
/LOAD
19
TRK IN
18
17
SLED IN
16
/EJECT
TRK OUT
FCS UP
15
SPDL-
14
12
FCS DOWN
13
SPDL+
KDC-3022, 322, 5023R (1/3)
u163
KDC-5024/V/Y/YV (1/3)
KDC-507, 5094RY (1/3)
.
I
KDC-5027/5027Y/508
2 9 9 4 2 8
R4
IOP+ IOP-
10
Q1
APC
D1
0.95pp
R15
4.7K
2.00V
CN1
4.80V
Vref 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
1 5 0 5 8 2 9 12 9 4 GND
3.84V
15 13 FCS+
3.81V
17 14 TRK+
3.81V
16 15 TRK-
3.84V
14 16 FCS-
DPU1
(X93- )
DM2 (X92- )
M
LOADING & SLED
MOTOR
DIGITAL LINE
SIGNAL LINE
GND LINE
B LINE
S4
X32-5390-00 NO
YES
X32-5390-01
IC1 : AN22002AA
IC2 : MN6627771KP
IC3 : BA5824FP
IC4 : NJM4580M1
Q1 : MCH6101
Q2 : 2SA1362(Y)
DM1 (X92- )
Q3 : DTC124EUA
M
Q4 : DTA143XUA
Q5 : 2SC4081
Q6 : 2SA1576A
SPINDLE
m
D1 : DAN202U
MOTOR
D2 : MA8051-L
D3 : DA204U
co
X32-5390-00 (2/2)
J
9 9
1
2
3
2 8 9 9
4
OPTICAL
PICKUP
5
6
7
17