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50PT200

LG 50PT200 User Manual

160 pages

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Training Manual

50PV450 50PV450 Plasma Plasma

DisplayDisplay

dvanced Single Scan Troubleshooting

50" Class Full HD 1080p Plasma TV

(49.9" diagonally)

Published May 13

, 2011

Troubleshooting2
LG Contact Information4
Preliminary Matters (the Fine Print)5
Important Safety Notice5
ESD Notice6
Basic Troubleshooting Steps8
600Hz Sub Field Driving13
Generic Plasma USB Automatic Software Download Instructions16
Manual Software Download17
Accessing the Service Menu19
Clear All21
Disassembly Section28
Removing the Back Cover29
Circuit Board Layout30
Disassembly Procedure for Circuit Board Removal32
Getting to the X Circuit Boards35
TCP (Tape Carrier Package) Generic Removal Precautions37
Circuit Operation, Troubleshooting and Circuit Alignment Section39
Panel Label Explanation41
Adjustment Notice42
Switch Mode Power Supply Section43
Switch Mode Power Supply Overview44
Power Supply Circuit Layout46
Power Supply Basic Operation47
Turn on Sequence Text49
Power Supply Static Test with Light Bulb Load51
Power Supply Static Test (Forcing on the SMPS in Stages)52
Test Conditions52
Set up and Set down Adjustments63
Adjustment Locations63
Set Up/Down Adjustments too High or Low64
Front Side94
Operating Voltages95
Control Board96
Power Supply Board96
Control Board Section105
Control Board Component Identification106
Control Board Temperature Sensor Location (Chocolate)108
Control Board TP Tips109
Checking the Crystal X1"Clock" on the Control Board110
Control Board Signal (Simplified Block Diagram)111
Control Board LVDS P31 Signals114
Control Board LVDS P31 Connector Voltages and Diode Check115
Control Board P2 Connector Pin ID and Voltages116
Control Board (EMI Filter) Explained117
TCP 3.3V B+ Check124
TCP Testing127
TCP Visual Observation. Damaged TCP128
Drive Connector131
Main Board Section135
Main Board Layout and Identification136
Main Board Tuner Explained142
Audio out147
Audio Amp147
Main Board149
Invisible Speaker System Section155
Speaker Connection155

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Specifications2 pages

Owner's Manual151 pages

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LG 50PT200 Specifications

General

Brand	LG
Model	50PT200
Category	Plasma TV
Language	English

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LG 50PT200 Specifications

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