4-35
DESCRIPTION OF CIRCUIT
2. FOCUS/TRACKING/SLED SERVO CIRCUIT
2-1. FOCUS, TRACKING & SLED SERVO PROCESS
F
E
D
C
A
B
H
G
Pick-up
Focus Error
Detector
Focus Error
Detector
A,B,C,D
A,B,C,D
E,F,G,H
A,B,C,D
E,F,G,H
IC121 AN22113A
FE
TE
LIC201
Servo Control
MN103SA6G
TE
FE
A/D
D
A
C
SLED
COMPENSATOR
A/D
PARALLEL
DIGITAL
COMPENSATOR
SDRV
60
64
66
67
STEP2
STEP1
LIC301 BD7956FS
29
30
M
Stepping Motor
Logic
A+
37
38
40
39
A-
B-
B+
Tracking Focusing
Actuator
T-
T+
F-
F+
5
4
LEVEL SHIFT
FDRV
TDRV
LEVEL SHIFT
53
54
51
52
Focus, Tracking, Sled Servo
Summary of Contents for DR165
Page 57: ...3 64 3 65 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP SIDE ...
Page 58: ...3 66 3 67 2 MAIN P C BOARD BOTTOM SIDE ...
Page 59: ...3 68 3 69 3 I O P C BOARD TOP VIEW BOTTOM VIEW 4 JUNCTION P C BOARD TOP VIEW BOTTOM VIEW ...
Page 77: ...4 17 2 DISC SPECIFICATION 3 DISC MATERIALS 1 DVD ROM Single Layer Dual Layer ...
Page 102: ......
Page 103: ...4 42 4 43 CIRCUIT DIAGRAMS 1 DSP CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 104: ...4 44 4 45 2 RF CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 105: ...4 46 4 47 3 DRIVE CIRCUIT DIAGRAM A B C D E F G H I J K L M N O P Q R S T ...
Page 107: ...4 50 4 51 PRINTED CIRCUIT DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...