Table Of Contents - LG 47LB1DA 1080p LCD Training Manual

TABLE OF CONTENTS

OVERVIEW ............................................................................................................. 5
INTRODUCTION .................................................................................................... 5
XD ENGINE .......................................................................................................... 5
COMPUTER CONNECTION ........................................................................................ 5
SERIAL NUMBER STRUCTURE .................................................................................. 6
LOCK SYSTEM ...................................................................................................... 6
SET PASSWORD .................................................................................................... 7
MOUNTING INTERFACE .......................................................................................... 7
SERVICE MENU .................................................................................................... 8
SERVICE REMOTE ................................................................................................. 9
THEORY ............................................................................................................... 11
LIQUID CRYSTAL DISPLAY .................................................................................... 11
LIQUID CRYSTAL PANEL ....................................................................................... 12
CIRCUIT DESCRIPTIONS ......................................................................................... 13
POWER SUPPLY .................................................................................................. 13
POWER SUPPLY SPECS ......................................................................................... 14
VIDEO .............................................................................................................. 15
AUDIO ............................................................................................................. 16
I2C FLOWCHART ................................................................................................ 18
TROUBLESHOOTING ............................................................................................... 20
TEST POINTS ..................................................................................................... 20
POWER SUPPLY RESISTANCE READINGS ................................................................... 21
LED INDICATORS ................................................................................................ 22
NO POWER ........................................................................................................ 23
POWER SUPPLY SCHEMATIC .................................................................................. 25
POWER SUPPLY - DEEP SLEEP MODE ....................................................................... 26
POWER SUPPLY - RUN 160VDC & REGULATED 383VDC ............................................... 27
POWER SUPPLY - AC DETECT & RELAY CONTROL ........................................................ 28
POWER SUPPLY - 24VDC & 19VDC SUPPLY .............................................................. 29
POWER SUPPLY - 6VDC & 12VDC SUPPLY ................................................................ 30
DEFECTIVE COMPONENT ....................................................................................... 31
DEFECTIVE HDMI ............................................................................................... 32
DEFECTIVE RF .................................................................................................... 33
DEFECTIVE RF 2 ................................................................................................. 34
DEFECTIVE RF 3 ................................................................................................. 35
DEFECTIVE DIGITAL ............................................................................................ 36
NO AUDIO - COMPOSITE & COMPONENT .................................................................. 37
NO AUDIO - HDMI .............................................................................................. 37
NO AUDIO - RF .................................................................................................. 38
NO AUDIO - DIGITAL ........................................................................................... 38
NO AUDIO - GENERAL .......................................................................................... 39
CABLECARD ....................................................................................................... 40
DISSASEMBLY ....................................................................................................... 43
EXPLODED VIEW ................................................................................................. 43
BACK CABINET REMOVAL ...................................................................................... 44
BOARD DESCRIPTIONS ......................................................................................... 45
FRAME REMOVAL ................................................................................................ 47
Directview LCD Training
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