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LG GSA-4168B manuals

Owner’s manuals and user’s guides for Hardware LG GSA-4168B.
We providing 1 pdf manuals LG GSA-4168B for download free by document types: User Manual


Lg : GSA-4168B User Manual (86 pages)


Brand: Lg | Category: Hardware | Size: 0.99 MB |

 

Table of contents

S E RVICE MANUAL

1

TABLE OF CONTENTS

2

INTRODUCTION

3

FEATURES

4

4. Performance

5

5. Audio

5

SPECIFICATIONS

6

3. DRIVE PERFORMANCE

7

LOCATION OF CUSTOMER CONTROLS

10

Rear Panel

11

DISASSEMBLY

12

2-2. Pick-up

13

PBM00 (MAIN C.B.A)

14

PBF00 (FRONT C.B.A)

14

(LightScribe only)

14

EXPLODED VIEW

14

GLOSSARY

15

1. Recording Layer

16

2. Disc Specification

16

3. Disc Materials

17

Focusing

18

Groove Land Mirror

18

Melting/

19

Heating/

19

1) Layout of CD-ROM disc

20

2) Layout of CD-R/RW disc

20

HF Signal

21

Incident recording pulse

22

Reflected recording pulse

22

Sampled timing B

22

Laser beam

25

T > 4

27

Lead-out Zone

30

3) Layout of DVD+RW disc

31

Diameter 120 mm

31

Disc Center

31

LightScribe Media

32

3. MD Assy For LightScribe

34

Optical Encoder Unit

34

4. Optical Encoder Assy

35

DVD & CD DATA PROCESSING

36

IC2(LDD)

40

2. Pick up Pin Assignment

41

Pick-Up module

42

Photo Diode

42

Tracking

42

Infrared Iaser

42

IC101 (R2S35002))

43

IC301 (R8J32007)

43

2. Focus Circuit

45

3-2-1. Tracking Servo

48

3-2-2. Sled Servo

48

4. Spindle Circuit

49

R2S35002

51

(TOP VIEW)

51

Block Diagram

52

• Pin Functions

53

R8J32007

56

Top View

56

1.2 Block Diagram

57

1.3 Pin Table

58

1.4 Pin Functions

59

Pin Function

66

Pin Layout

66

Input/Output circuit diagram

68

TROUBLESHOOTING GUIDE

69

Adjust for DVD-RAM (PID Amp)

71

Adjust for DVD-ROM, CD-R/RW

71

1. Laser Power Initial Adjust

75

IC301 DSP (R8J32007)

81

BLOCK DIAGRAM

86
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