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LG HT353SD Service Manual

LG HT353SD
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1-1
[CONTENTS]
SECTION 1. GENERAL
• SERVICING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
• ESD PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
• SERVICE INFORMATION FOR EEPROM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
HOW TO UPDATE AUDIO MICOM & DVD PROGRAMS
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
• SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8
SECTION 2. ELECTRICAL PART
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
DETAILS AND WAVEFORMS ON SYSTEM TEST AND DEBUGGING . . . . . . . . . . . . . . .2-13
INTERNAL BLOCK DIAGRAM OF ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-25
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-45
OVERALL BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-47
CIRCUIT DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-49
PRINTED CIRCUIT DIARGAMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-69
SECTION 3. EXPLODED VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
CABINET AND MAIN FRAME SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
DECK MECHANISM EXPLODED VIEW(DP-12TV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3
PACKING ACCESSORY SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
SPEAKER SECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
SECTION 4. MECHANISM (DP-12TV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
SECTION 5. REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only

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LG HT353SD Specifications

General IconGeneral
RMS rated power300 W
Audio output channels5.1 channels
Audio formats supportedWMA
Center speaker RMS power45 W
Center speaker impedance4 Ω
Analog signal format systemNTSC, PAL
FM band range87.5 - 108 MHz
Disc types supportedCD, DVD-R, DVD-RW
Optical disc player typeDVD player
FM antennaYes
USB version2.0
SCART ports quantity1
Power consumption (standby)1 W
Power consumption (typical)50 W
Weight and Dimensions IconWeight and Dimensions
Subwoofer weight3500 g
Subwoofer dimensions (WxDxH)156 x 320 x 325 mm
Front speaker dimensions (WxDxH)99 x 87 x 114 mm
Center speaker dimensions (WxDxH)114 x 87 x 99 mm

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