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Kenwood DVF-3020 Service Manual page 4

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OPTICAL PICK UP UNIT
PHOTO DETECTOR
B1
B2
A1
A2
HEAD
AMP
A4
A3
B4
B3
LASER DIODE
Q5201
LD DRIVE
IC6303
(EEPROM)
D
5
C
6
Q
2
IC6201
(CPU)
55
70
72
52
60
50
76
71
IC7001
(ODC)
112
113
114
115
RF SIGNAL
IC5202
IC2001
(FEP)
(DSC)
VIN6
91
VIN5
92
VIN1
RDTN
94
47
40
VIN2
RDTP
95
48
41
VIN3
RDCKN
96
49
42
VIN4
RDCKP
97
50
43
TE
28
91
TRACKING
BALANCE
TBAL
3
9
20
FE
4
13
93
FOCUS
BALANCE
FBAL
12
98
LDONB
1
3
AMP
LDONA
2
2
JIT OUT
64
81
BDO
65
44
OFTR
66
107
INTERFACE
SEN
19
SCK
20
STD1
21
STNBY
X TRON
22
23
128
CPSEN
33
CPCEN
34
CPUIRQ
35
SBT1
36
SBO1
37
SBI1
38
DAT0
60
DAT1
61
DAT2
62
DAT3
63
SPINDLE MOTOR DRIVE SIGNAL
STEPPING MOTOR DRIVE SIGNAL
TRSDRV-A
104
TRSDRV-B
105
TRAKING DRIVE
102
FOCUS DRIVE
103
TRV-SW
11
ECR
121
EC
120
FG
111
IC2501-24
5.0Vp-p(20usec./div.)
QR2501
FGC
1
3
4
AMP
SS
14
1
5
QR2503
BRK
16
AMP
QR2502
TRAY SET1
7
3
4
AMP
TRAY SET2
8
1
5
TRAY OPEN
13
TRAY CLOSE
12
IC2501-25(UP),IC2501-27(DOWN)
OPEN 2.5Vp-p
(0.5sec./DIV.)
TRACKING ERROR SIGNAL
FOCUS ERROR SIGNAL
STEPPING MOTOR UNIT
IC2511
STEPPING MOTOR
(MOTOR DRIVE)
VO3-
18
VO3+
17
26
OPIN4-
VO4-
16
VO4+
15
23
OPIN3-
OPTICAL PICK UP UNIT
IC2511-11,12,13,14
7.2Vp-p(20usec./div.)
ACTUATOR
3
OPIN1-
ACT F+
VO1+
14
ACT F-
VO1-
13
6
OPIN2-
ACT T+
VO2+
12
ACT T-
VO2-
11
SPINDLE MOTOR UNIT
TRV-SW
IC2501
(SPINDLE MOTOR DRIVE)
H3-
H3-
7
H3+
H3+
6
H2-
10
ECR
H2-
5
H2+
11
EC
H2+
4
16
FG
H1-
H1-
3
H1+
H1+
2
M1
15
FGC
A1
28
M2
9
SS
A2
26
M3
A3
23
12
BRK
LOADING MOTOR UNIT
19
RIN
18
FIN
LOAD M+
OUT1
27
LOAD M-
OUT2
25
TRAY OPEN
TRAY CLOSE
IC2501-25(UP),IC2501-27(DOWN)
CLOSE 2.5Vp-p
(0.5sec./DIV.)
FOCUS
COIL
TRACKING
COIL
TRAVERSE SWITCH
HALL3
HALL2
HALL1
M2601
LOADING
MOTOR
S2601

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