m62481fp Mitsumi Electronics, Corp., m62481fp Datasheet - Page 61

• Manufacturer Part Number: m62481fp
• Description: Pickup Servo System With Automatic Adjustment
• Manufacturer: Mitsumi Electronics, Corp.

Focus offset
Method II
D-62481-87I
( FE Amp, FS Amp, Focus offset ADJ, Focus gain ADJ )
Focus Servo System1
B
A
a
JP1/SG
( Note ) Resistors and Capacitors without value are externals.
a
OSF
b
B
A
54
24
38
53
JP1 Input
Circuit
Focus Offset
Voltage
0.1P
B
A
60k
0.1P
60k
FG SIG
-A
-B
Foucs Search
Circuit
12p
47k
47k
230k
12p
39
CFSR
Buffer
36p
Buffer
BW WIDE
BW WIDE
36p
30k
PICKUP SERVO SYSTEM WITH AUTOMATIC ADJUSTMENT
(
30k
MITSUBISHI
60
ELECTRIC
A-B
Focus
Balance1
/ 88 )
Focus offset Method I
Focus Balance2
FG RET
Focus gain1
31
FZC Shock
Circuit
MITSUBISHI SOUND PROCESSOR LSI
FG2
FG2
b
FE2 OUT
pin
FE1
-IN
30
32
37
Focus gain
judgment
Focus
(offset)
gain3
FS -IN
FS
FE1
FZC OFF
36
Focus offset
Method I
FE1
100k
M62481FP
Focus
Actuator
FS HOLD
18k
Focus
gain2
FE2
+IN
100k
29
2k
47p
FS OUT
35
ADJ FO1
ADJ FO2
Focus offset
Method II
220k
1k
FS ON
34
FG1
FG1
V
ADJ FBAL
33
REF
Focus
offset
judgment
FE2 -IN
22k
FS OFF
FE2
=1/2Vcc
COMP IN
32
pin 31
44
FG2
FE2
OUT