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KLV-20G400A
KLV-20G400A
TABLE OF CONTENTS
SECTION TITLE
PAGE
Specifi cations .........................................................................................................................................................................................................4
Warnings and Cautions ..........................................................................................................................................................................................5
Safety-Related Component Warning ......................................................................................................................................................................6
Safety Check-Out ...................................................................................................................................................................................................8
Self-Diagnostic Function .........................................................................................................................................................................................9
SECTION 1: DISASSEMBLY ....................................................................................................................................................................................... 10
1-1. Rear Cover Removal
....................................................................................................................................................................................10
1-2. Function Key Removal .................................................................................................................................................................................10
1-3. H3 Board Removal
.......................................................................................................................................................................................11
1-4. H2 Board, IR Lens, and LED Lens Removal ................................................................................................................................................11
1-5. A Board and G Board Removal ....................................................................................................................................................................12
1-6. Stand Removal
.............................................................................................................................................................................................13
1-7. Speakers, LCD Panel, and Main Bracket Removal .....................................................................................................................................13
Wire Dressing .......................................................................................................................................................................................................14
Overall
View
.................................................................................................................................................................................................14
SECTION 2: SERVICE ADJUSTMENTS ..................................................................................................................................................................... 15
2-1. Resetting to Factory Defaults after Board Replacement ..............................................................................................................................15
SECTION 3: DIAGRAMS ............................................................................................................................................................................................. 16
3-1. Circuit Boards Location ................................................................................................................................................................................16
3-2. Printed Wiring Boards and Schematic Diagrams Information ......................................................................................................................16
3-3. Block Diagram
..............................................................................................................................................................................................18
3-4. Connector Diagram ......................................................................................................................................................................................19
3-5. Frame Diagram ............................................................................................................................................................................................20
3-6. Schematics and Supporting Information ......................................................................................................................................................21
A Board Schematic Diagram (1 of 11) .......................................................................................................................................................... 21
A Board Schematic Diagram (2 of 11) .......................................................................................................................................................... 22
A Board Schematic Diagram (3 of 11) .......................................................................................................................................................... 23
A Board Schematic Diagram (4 of 11) .......................................................................................................................................................... 24
A Board Schematic Diagram (5 of 11) .......................................................................................................................................................... 25
A Board Schematic Diagram (6 of 11) .......................................................................................................................................................... 26
A Board Schematic Diagram (7 of 11) .......................................................................................................................................................... 27
A Board Schematic Diagram (8 of 11) .......................................................................................................................................................... 28
A Board Schematic Diagram (9 of 11) .......................................................................................................................................................... 29
A Board Schematic Diagram (10 of 11) ........................................................................................................................................................ 30
A Board Schematic Diagram (11 of 11) ........................................................................................................................................................ 31
H1 Board Schematic Diagram ...................................................................................................................................................................... 34
H2 Board Schematic Diagram ...................................................................................................................................................................... 35
H3 Board Schematic Diagram ...................................................................................................................................................................... 36
SECTION 4: EXPLODED VIEWS ................................................................................................................................................................................ 37
4-1. Rear Cover Assembly and Stand Assembly ................................................................................................................................................37
4-2. Chassis ........................................................................................................................................................................................................38
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