service information for eeprom ic setting - Jordans Manuals
service information for eeprom ic setting - Jordans Manuals
service information for eeprom ic setting - Jordans Manuals
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DESCRIPTION OF CIRCUIT<br />
2. FOCUS/TRACKING/SLED SERVO CIRCUIT<br />
2-1. FOCUS, TRACKING & SLED SERVO PROCESS<br />
Focus, Tracking, Sled Servo<br />
P<strong>ic</strong>k-up<br />
E<br />
F<br />
A,B,C,D<br />
E,F,G,H<br />
A,B,C,D<br />
Focus Error<br />
Detector<br />
FE<br />
B A<br />
C D<br />
G<br />
H<br />
A,B,C,D<br />
E,F,G,H<br />
Focus Error<br />
Detector<br />
IC121 AN22113A<br />
TE<br />
Tracking Focusing<br />
Actuator<br />
53 54 51 52<br />
LIC201<br />
Servo Control<br />
MN103SA6G<br />
A/D<br />
T- T+ F- F+<br />
TE<br />
FE<br />
LEVEL SHIFT<br />
LEVEL SHIFT<br />
LIC301 BD7956FS<br />
5<br />
4<br />
29<br />
FDRV<br />
60<br />
64<br />
TDRV<br />
D<br />
A<br />
C<br />
PARALLEL<br />
DIGITAL<br />
COMPENSATOR<br />
30<br />
STEP2<br />
SLED<br />
COMPENSATOR<br />
Log<strong>ic</strong><br />
37 38 40 39<br />
A+ A- B- B+<br />
STEP1<br />
66<br />
67<br />
A/D<br />
SDRV<br />
M<br />
Stepping Motor<br />
4-35
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