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LH-T6740A
User Manuals: LG LH-T6740A DVD/CD Receiver
Manuals and User Guides for LG LH-T6740A DVD/CD Receiver. We have
1
LG LH-T6740A DVD/CD Receiver manual available for free PDF download: Service Manual
LG LH-T6740A Service Manual (58 pages)
DVD/CD RECEIVER
Brand:
LG
| Category:
Receiver
| Size: 6.63 MB
Table of Contents
Service Manual
1
Table of Contents
2
General
3
Servicing Precautions
3
Notes for Transport and Storage
3
Repair Notes
3
Notes Regarding Compact Disc Player Repairs
4
Preparations
4
ESD Precautions
5
Electrostatically Sensitive Devices
5
Graphic Symbols
5
Specifications
6
Audio Part
8
Electrical Troubleshooting Guide
8
Power Check Flow
8
Audio Com Circuit
9
Front Circuit
10
Block Diagram
12
Front Schematic Diagram
13
Micom Schematic Diagram
14
I/O Schematic Diagram
15
DSP Schematic Diagram
16
AMP Schematic Diagram
17
SMP S-Wide Schematic Diagram
18
Power Schematic Diagram
19
Wiring Diagrams
20
Printed Circuit Diagrams
21
Main PC Board
21
Front PC Board
23
Power PC Board
24
DVD Parts
26
System Operation Flow
27
Test and Debug Flow
28
DVD Part Electrical Troubleshooting Guide
34
Details and Waveforms O System Test and Debugging
34
System 27Mhz Clock, Reset, Flash R/W Signal
34
MT1379 Main Clock Is at 27Mhz
34
MT1336 Reset Is High Active
34
RS232 Waveform During Procedure
35
Flash R/W Enable Signal During Download
35
SDRAM Clock
36
Tray Open/Close Signal
36
SLED Control Related Signal
37
Lens Control Related Signal
37
Laser Power Control Related Signal
38
Disc Type Judgement Waveform
38
Focus on Waveform
40
Spindle Control Waveform
41
Tracking Control Related Signal
42
MT1389 Audio Optical and Coaxial Input
43
MT1389 Video Output Waveform
43
MT1389 Audio Output to PWM IC
44
Composite Video Signal
44
Audio Output from PWM IC
45
Overall Block Diagram
46
SERVO Block Diagram
47
MPEG and MEMORY Block Diagram
48
VIDEO and AUDIO Block Diagram
49
DVD Part Schematic Diagrams
50
Servo Schematic Diagram
51
Cabinet and Main Frame Section
52
Section 4. Exploded Views
52
Deck Mechanism Exploded View
53
Section 5. Speaker Part
54
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