Table Of Contents - JVC LT-32EX19/AT Service Manual

Table of Contents

Table Of Contents1
Specification2
Precaution6
Safety Precautions6
Alternate Check Method6
Leakage Current Check6
Installation7
Heat Dissipation7
Notes On Handling7
Handling Lcd Panel7
How To Check The Operating Time8
Optical Filter8
Self Check Mode Screen8
How To Reset The Operating Time8
Specific Service Instructions9
Features9
Main Difference List9
Hdmi Input9
How To Identify Models10
Technical Information11
Lcd Panel11
Specifications11
Pixel Fault11
Main Cpu Pin Function12
Disassembly14
Caution At Disassembly14
Removing The Rear Cover14
Removing The Speaker14
Disassembly Procedure16
Removing The Control Pwb16
Removing The Inverter Pwb16
Removing The Lcd Control Pwb17
Removing The Back Light Unit17
Memory Ic Replacement18
Memory Ic Replacement Procedure18
Service Mode Screen18
User Setting18
System Constant Setting19
Button Operation19
Remote Control Direct Operation19
Remote Control Menu Operation19
Replacement Of Chip Component23
Soldering Iron23
How To Install Chip Parts23
How To Remove Chip Parts23
Adjustment24
Adjustment Preparation24
Preset Setting Before Adjustments24
Measuring Instrument And Fixtures24
How To Enter The Adjustment Mode25
Description Of Status Display25
Signal System25
Zoom Mode25
Vsm Preset Mode26
How To Enter The Vsm Preset Mode26
Initial Setting Values In The Service Mode26
Adjustment Procedure27
Video Circuit27
Troubleshooting28
Self Check Feature28
How To Enter The Self Check Mode28
How To Exit The Self Check Mode28
Details29
Method Of Display When A Raster Is Not Output29
Explanation Of Operation29
Standard Circuit Diagram32
Note On Using Circuit Diagrams32
Specified Voltage And Waveform Values32
Note For Repairing Service32
Using P.w. Board33
Semiconductor Shapes33
Transistor33
Wiring Diagram34
Block Diagram35
Circuit Diagrams36
Analog Pwb Circuit Diagram36
Digital Pwb Ass'y37
Digital Pwb Circuit Diagram37
Power Pwb Circuit Diagram40
Sw Pwb Circuit Diagram41
Led Pwb Circuit Diagram42
Remote Pwb Circuit Diagram43
Pattern Diagrams44
Analog Pwb Pattern44
Digital Pwb Pattern45
Power Pwb Pattern47
Sw Pwb Pattern47
Led Pwb Pattern47
Remote Pwb Pattern48
Voltage Charts48
Waveforms49
Analog Pwb49
Printed Wiring Board Parts60
Analog P.w. Board Ass'y60
Remote P.w. Board Ass'y61
Led P.w. Board Ass'y61
Power P.w. Board Ass'y61
Sw P.w. Board Ass'y61
Digital P.w. Board Ass'y62
Parts List67
Abbreviations Of Resistors, Capacitors And Tolerances67
Using P.w. Board & Remote Control Unit69
Exploded View Parts List -169
Exploded View -170
Exploded View Parts List -271
Exploded View -271
Analog P.w. Board Ass'y (Sfu-1601A-H2)72
Printed Wiring Board Parts List [Lt-32Ex19/At]72
Led P.w. Board Ass'y (Sfu-8601A-H2)73
Power P.w. Board Ass'y (Sfu-9601A-H2)73
Remote P.w. Board Ass'y (Sfu-7602A-H2)73
Digital P.w. Board Ass'y (Sfu0D601A-H2)74
Sw P.w. Board Ass'y (Sfu-7601A-H2)78
Digital P.w. Board Ass'y (Sfu0D608A-H2)78
Analogl P.w. Board Ass'y (Sfu-1603A-H2)82
Digital P.w. Board Ass'y (Sfu0D609A-H2)83
Printed Wiring Board Parts List [Lt-32Ex19/Sat]87
Digital P.w. Board Ass'y (Sfu0D610A-H2)87
Remote Control Unit Parts List (Rm-C2020-1C)90
Packing91
Packing Parts List92
Revision Information93
Schematic Diagram101
Printed Circuit Board102