Kenwood KDC-1022 Service Manual page 15

F
QQ
3 7 63 1515 0
RFENV
1.25V
20
1.70V IREF
19
0V PLLF2
18
PLLF
R39 100K
17
0.87pp RFSW
16
ARF
15 2.45V
DSLF
0V
14
AVSS2
13
4.80V DVSS1
12
DVDD1
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
3
2.35V PC
2
SPL
1
2.40V
TVD
CP3
2.40V
TE
L 13942296513
C48
1.8Kx4
6800P
C50
6800P
IC3
4CH BTL
DRIVER
2.35V
FCS
www
79
SPDL
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
R41
47K
C45 0.1
C44 1000P
IC1
C43 2200P
R40 C42
820 0.047
C41
1000P
VDET
R38 C40
0.015
2.50V B/TE
R10
100K
9
8
C14
4700P
7
6
5
4
CP4
4.7Kx4
2
1
D3
R53 R52
4.7K 4.7K
Q6 Q5
R45
10K
D.GND
TRK SLED
R51 R32
10K 10K
C51 C37
1500P 0.01
C49 C38
1500P 0.01
R47
2.2K R48
10K
R33 R34 C61
18K 10K 2.2
x ao
y
i
H
8
ARF
R7 3.6K
RF
C7
0.1
2.50V
0.91pp
R8 R11
27K 33K
C13 C16
270P 330P
R35
39K
4
IC1
RF AMPLIFIER
ADAPTED FOR CD-RW
D.5V
Q Q
3 6 7 1 3
Q5,6
VREF
BUFFER
S.GND
SLED OUT
/LOAD
18
TRK IN
17
16
SLED IN
15
/EJECT
TRK OUT
FCS UP
14
SPDL-
13
11
FCS DOWN
12
u163
SPDL+
S.7.5V
.
I
KDC-1022/122P
2 9 9 4 2 8
C2
2.2
R4
IOP+ IOP-
10
Q1
R6
3.3K
C5
2P
APC
D1
0.95pp
R15
4.7K
2.00V
4.80V
Vref
2.50V
0V
R1
91
0V
0.17V
2.69V
CD
2.50V
E
2.69V
A
2.69V
B
1 5 0 5 8 2 9 9 4 2.69V
F
2.50V
3.84V
14
3.81V
16
3.81V
15
3.84V
13
IC1 : AN22002AA
IC2 : MN6627771KP
IC3 : BA5824FP
DM2 (X92- )
Q1 : MCH6101
M
Q2 : 2SA1362(Y)
Q3 : DTC124EUA or
UN5212
Q4 : DTA143XUA
LOADING & SLED
Q5 : 2SC4081
MOTOR
Q6 : 2SA1576A
D1 : DAN202U
D2 : MA8051-L
D3 : DA204U
SIGNAL LINE
GND LINE
B LINE
S4
X32-5380-00 NO
X32-5380-01 YES
DM1 (X92- )
m
M
co
SPINDLE
MOTOR
X32-5380-00 (2/2)
J
9 9
1
2
3
CN1
1
VCC
2 VC
3 GND
4 LD
5 VR
6 PD
7 C+D
8 E
9 A
10 B
2 8 9 9
11 F
12 GND
4
13 FCS+
14 TRK+
15 TRK-
16 FCS-
5
6
7
15