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LH-T252SC
LG LH-T252SC User Manual
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WIRELESS DVD RECEIVER
SER
VICE MANUAL
MODEL
: LH-W551TB
LHS-55TBC, LHS-55TBS,
LHS-55TBW
,
ACC55T
, ACC55R
MODEL
: LH-W551TB LHS-55TBC, LHS-55TBS, LHS-55TBW
, ACC55T
, ACC55R
SERVICE MANUAL
2
Table of Contents
Default Chapter
1
Service Manual
1
Table of Contents
2
Servicing Precautions
3
Notes Regarding Handling of the Pick-Up
3
Section 1. General
3
Notes Regarding Compact Disc Player Repairs
4
Electrostatically Sensitive Devices (ESD) Precautions
5
Specifications
6
Audio Troubleshooting Guide
7
Section 2. Audio Part
7
Wiring Diagram (Audio)
10
Block Diagram (Audio)
11
Schematic Diagrams (Audio)
12
Schematic Diagrams
14
Printed Circuit Boards Diagrams
19
Electrical Troubleshooting Guide
24
System Operation Flow
24
Section 3. DVD & Amp Part
24
Test & Debug Flow
25
AUDIO Μ-COM Circuit (DVD & AMP)
31
Details and Waveforms on System Test and Debugging
32
DVD Part Schematic Diagrams
46
Section 4. Exploded Views
52
Packing Accessory Section
54
Speaker Section
56
Center Speaker
56
Front/Rear Speaker
57
Sub Woofer Speaker
58
Transmitter (TX) Elecical
61
TX Module Block Diagram
61
TX Sub Block Diagram
62
TX Module Schematic Daigram
63
TX Sub Schematic Diagram
66
TX Module Printed Circuit Diagrams
67
TX Printed Circuit Diagram
69
Receiver (RX) Electrical
70
RX Module Block Diagram
70
RX Module Schematic Diagram
71
RX Amp Schematic Diagram
74
RX Module + Amp Schematic Diagram
77
RX SMPS (Power) Schematic Diagram
78
RX Module Printed Circuit Diagrams
79
Amp Printed Circuit Diagrams
81
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LG LH-T252SC Specifications
General
Number of channels
5.1
DVD Player
Yes
USB Port
Yes
HDMI Output
Yes
Bluetooth
No
Type
Home Theater System
Disc formats
DVD, WMA, MP3
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