- 3 -
IC BLOCK DIAGRAM & DESCRIPTION
IC101A FAN8038B (Power & Driver)
LDON
FS1-
FS4
TM1-
TM6
BAL1-
BAL5
PS1-
PS4
GA1-
GA5
RF-
RFO
PD1
PD2
F
E
EI
PD
LD
VR
EQO
IRF
ASY
EFM
RFI
DCB
FDFCT
FE-
FEO
TDFCT
TE-
TEO
TE2
LPFT
SLO
SL-
SL+
SPDLO
SPDL-
SMDP
SMEF
FSET
MIRROR
MCP
FOK
TG2
TGU
DCC2
FEBIAS
EQC
72
73
64
65
62
66
67
78
68
69
70
77
75
74
31
32
76
1
3
4
14
15
12
13
18
16
11
10
8
9
39
80
38
5
24
23
22
44
45
41
43
42
60
61
54
52
49
48
56
47
46
59
2
26
27
25
57
51
50
34
35
36
37
30
28
29
21
53
58
DCC1
GC1O
GC1I
CH1O
CH1I
MUTEI
RRC
CH2O
CH2I
GC2I
GC2O
FRSH
FS3
FGD
FLB
FE2
TZC
ATSC
MCK
MDATA
MLT
RESET
ISTAT
LOCK
TRCNT
WDCH
TE1
FE1
RF Amp
Focus Error Amp
FE-BIAS Adjustment
Tracking Error Amp
E/F Balance & Gain
Control
APC Amp
Center Voltage Amp.
RF Level AGC
& Equalizer
EFM
Comparator
Defect Detection
Circuit
MICOM Data
Interface Logic
Focus Phase
Compensation
& Offset cancel
circuit
MICOM TO SERVO CONTROL
AUTO SEQUENCER
Tracking Phase
Compensation Block
& Jump Pulse GEN.
Sled Servo Amplifier
& Sled Kick GEN.
Spindle Servo LPF
( Double Speed )
Mirror Detection
Circuit
FOK Detection
Circuit
Built-in Post Filter Amp ( L&R )
ADJUSTMENT-FREE CONTROL
SMON
IC201A SIL9223B02 (RF AMP. & Servo Signal Processor)
