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OPTICAL PICKUP
SEMICONDUCTOR
LASER
LASER
POWER DRIVE
+B
PHOTO DETECTOR
E
E
D
C
A
B
D
C
F
F
TRACKING
FOCUS
COIL
COIL
T+
T-
F+
F-
IC702
MN662790RSC
SERVO PROCESSOR/
DIGITAL SIGNAL
PROCESSOR/
DIGITAL FILTER/
D/A CONVERTER
IC703
AN8739SBE2
FOCUS COIL/
TRACKING COIL/
TRAVERSE MOTOR/
SPINDLE MOTOR DRIVE
RESET
SIGNAL
GEN.
18
D4+
FOCUS
17
COIL
D4-
DRIVE
16
D3+
TRACKING
COIL
15
D3-
DRIVE
12
D1+
TRAVERSE
_ M
TRAVERSE
MOTOR
11
D1-
MOTOR
DRIVE
D2+
14
SPINDLE
_ M
SPINDLE
MOTOR
13
D2-
MOTOR
DRIVE
IC701
AN8885SBE1
SERVO AMP
LPD
6
Q701
LD
7
-
+
+B
PDA
4
PDB
5
PDE
1
PDF
2
13
47
44
ARF
DSL
SYNCHRONIZING
PROTECTION
BDO
39
BDO
38
/RF DET
/RFDET
34
RF ENV
ENV
FE
FE
32
TE
33
TE
36
OFT
OFTR
TRCRS
37
35
VDET
29
VREF
+B
TBAL
31
TBAL
FBAL
FBAL
30
PLLF2
41
WVEL
43
42
DSLF2
LDON
40
LDON
/RST
1
27 28
26
IN3
IN4
25
IN1
6
IN2
3
PC2
4
8
9
RFEQ1
RFEQ2
AMP
GCA
BCA
GCA
BCA
AMP
AMP
GCA
BCA
AMP
GCA
BCA
21
20
27
28
48
PHASE
FREQUENCY
COMPARATOR
COMPARATOR
VCO
EFM DATA
DEMODULATOR
SYNCHRONING
16K
SERVO
INTERPOLATION
SRAM
INPUT
PROTECTION
PORT
PEAK
RAM
DETECTOR/
ADDRESS
AUTO CUE
GENERATOR
SUB-CODE
CLV
DEMODULATOR
SERVO
CRCC
CHECK
SERVO
CPU
CRCC
CHECK
D/A
SERVO OUTPUT
CONVERTER
PORT
22
25
26
21
24
23
10 11
12
18
+B
12
10
OFTR
OFTR
BDO
CEA
3TENV
ENV
NRFDET
/RFDET
FEN
FEOUT
SUBTRACTOR
-
+
VREF
TEN
TEOUT
SUBTRACTOR
-
+
VREF
BAND
GAP
VREF
-
+
VCC
16
18
DIGITAL AUDIO
SYNDROME
INTERFACE
CALCULATION
CIRC
DECODER
INTERPOLATION/
SOFT MUTING/
DIGITAL
S/P
ATTENUATION
CONVERTER
DIGITAL DE-EMPHASIS
DIGITAL FILTER
MICROCOMPUTER
INTERFACE
13
14
15
17
8
7
RF
BDO
17
OFTR
11
+B
19
ENV
/RFDET
15
25
24
FE
22
23
TE
+B
26
+B
TX
6
DMUTE
16
X2OUT
59
X701
X1IN
58
TIMING
SMCK
19
GENERATOR/
PITCH
CONTROL
RSEL
76
+B
29
VREF
+B
OUTL
73
+
CD SIGNAL
-
OUTR
75
+
RCH
-
SUBC
55
SBCK
56
/CLDCK
62
9
E
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