FL8370
KB9223
M/M-97-P006
1997. 10. 17
BLOCK DIAGRAM
Figure 1. Block diagram
73
74
65
66
63
67
68
79
69
70
71
78
76
75
32
33
77
2
4
RF Amp
59
Focus Error Amp
FE-BIAS Adjustment
Tracking Error Amp
E/F Balance & Gain
Control
APC Amp
LDON
Center Voltage Amp.
RF Level AGC
Equalizer
EFM
Comparator
Defect Detection
Circuit
54
22
30
29
31
38
37
36
35
51
52
58
26
28
27
Micom Data
Interface Logic
60
47
48
57
49
50
53
55
62
61
43
44
42
46
45
23
24
25
6
39
1
40
5
15
16
13
14
19
17
12
11
9
10
Focus Phase
Compensation
& Offset cancel circuit
Tracking Phase
Compensation Block
& Jump Pulse GEN.
Sled Servo Amplifier
& Sled Kick GEN.
Spindle Servo LPF
( Double Speed )
Mirror Detection
Circuit
FOK Detection
Circuit
MICOM TO SERVO CONTROL
AUTO SEQUENCER
ADJUSTMENT-FREE CONTROL
Built-in Post Filter Amp ( L&R )
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
D
C
C
1
G
C
1
O
G
C
1
I
C
H
1
O
C
H
1
I
M
U
T
E
I
R
R
C
C
H
2
O
C
H
2
I
G
C
2
I
G
C
2
O
FDFCT
FE-
FEO
TDFCT
TE-
TEO
TE2
LPFT
SLO
SL-
SL+
SPDLO
SPDL-
SMDP
SMON
SMEF
FSET
MIRROR
MCP
FOK
TG2
TGU
F
E
1
T
E
1
M
L
T
T
Z
C
F
E
2
F
L
B
F
G
D
F
S
3
3
&
W
D
C
H
T
R
C
N
T
L
O
C
K
IS
T
A
T
R
E
S
E
T
M
D
A
T
A
M
C
K
A
T
S
C
F
R
S
H
DCC2
FEBIAS
EQC
19
Содержание FL 8370
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Страница 42: ...Motor driver IC BA6209 BA6209N FL8370 42 ...
Страница 43: ...Motor driver IC BA6209 BA6209N Measurement circuit FL8370 43 ...
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