Table Of Contents - LG 32LG40 Training Manual

Overview .................................................. 5
introduction ....................................................5
Basic Troubleshooting Steps ............................5
Caution............................................................5
Model Number Structure ...............................6
Serial number Structure ..................................6
Features ..........................................................7
32LG40 Dimensions ........................................8
42LG60 Dimensions ........................................8
remote Control ..............................................9
New Features .................................................9
Computer Connection ................................. 10
Service Menu ................................................ 10
Power Consumption .................................... 10
Service remote ............................................ 11
Check Firmware version ............................. 12
Update Firmware ......................................... 12
DiSaSSeMBLy - 32LG40 ............................ 13
Back Cover removal .................................... 13
Board Layout ................................................ 13
Power Supply removal ................................ 14
Main Board removal .................................... 14
LCD Driver removal ................................... 15
Ballast removal ............................................ 16
DvD Player removal ................................... 17
DvD Player removal ................................... 17
exploded view ............................................. 18
CirCUiT DeSCriPTiONS - 32LG40 ......... 19
Power Supply (SMPS) ................................... 19
Main (Digital) Board ..................................... 22
Ballast assembly ........................................... 30
LCD Driver (T-Con) .................................... 32
DvD Player .................................................. 34
Front Board .................................................. 35
invisible Speaker System ............................. 37
DiSaSSeMBLy - 42LG60 ............................ 39
introduction ................................................. 39
back cover removal ..................................... 39
Power Supply (SMPS) removal .................... 40
Main Board removal .................................... 40
control Board removal ................................ 41
LCD Driver Board removal ......................... 41
Speaker Box removal .................................. 42
exploded view ............................................. 43

Table of ConTenTs

CirCUiT DeSCriPTiONS - 42LG60 ......... 45
introduction ................................................. 45
Backlight Layout ........................................... 46
Power Supply Layout ................................... 47
Control Board Layout .................................. 49
LCD Driver (T-CON) Layout ...................... 51
Main board layout ........................................ 53
invisible Speaker SyStem Layout .................. 61
SCheMaTiCS ............................................ 63
32LG40 :: interconnect ................................ 63
32LG40 :: waveForms ................................. 64
32LG40 :: Main Board :: Main Micro ............ 65
32LG40 :: Main Board :: audio .................... 66
32LG40 :: Main Board :: Memory ................ 67
32LG40 :: Main Board :: BCM/USB .............. 68
32LG40 :: Main Board :: DCM ..................... 69
32LG40 :: Main Board :: LvDS/DvD ............ 70
32LG40 :: Main Board :: Tuner Power ......... 71
32LG40 :: Main Board :: Jackpacks ............... 72
32LG40 :: Main Board :: hDMi .................... 73
42LG60 :: interconnect ................................ 74
42LG60 :: waveforms .................................. 75
42LG60 :: Main Board :: BCM ..................... 76
42LG60 :: Main Board :: DDr Memory ...... 77
42LG60 :: Main Board :: Main Micro ........... 78
42LG60 :: Main Board :: audio Processor .. 79
42LG60 :: Main Board :: hDMi ................... 80
42LG60 :: Main Board :: interface ............... 81
42LG60 :: Main Board :: interface ............... 82
42LG60 :: Main Board :: regulators ............ 83
42LG60 :: Main Board :: LvDS/Tuner .......... 84
42LG60 :: Main Board :: audio Out ............ 85
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Fall 2008 LCD Training