Panasonic Viera TX-20LA60F, Service Manual

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2
TX-20LA6
TX-20LA60
CONTENTS
Page
1. Safety Precautions ----------------------------------------------- 3
1.1. General Guidelines -------------------------------------- 3
1.2. Touch-Current Check ------------------------------------ 3
2. Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices ------------------ 4
3 About lead free solder (PbF) --------------------------------- 5
4. Self Check ---------------------------------------------------------- 6
5. Chasis Board Layout -------------------------------------------- 7
6. Before servicing -------------------------------------------------- 8
6.1. Wire dressing ---------------------------------------------- 8
7. Disassembly for service --------------------------------------- 9
7.1. Stand ass´y ------------------------------------------------ 9
7.2. Back cover ------------------------------------------------- 9
7.3. CTRL ass´y -----------------------------------------------10
7.4. Power Swith ass´y --------------------------------------10
7.5. LED ass´y -------------------------------------------------10
7.6. Headphone ass’y ----------------------------------------10
7.7. Speaker (left and right) --------------------------------- 11
7.8. TTL ass’y --------------------------------------------------- 11
7.9. Power Module -------------------------------------------- 11
7.10. Main ass´y ----------------------------------------------- 11
7.11.Panel LCD -------------------------------------------------12
Page
8
.
Service Mode Function ----------------------------------------13
8.1. How to enter SERVICE --------------------------------13
8.2. How to exit SERVICE ----------------------------------13
8.3. Option Description --------------------------------------14
9. Conduct Views ---------------------------------------------------15
9.1. Foil Side ---------------------------------------------------15
9.2. Component Side -----------------------------------------17
10. Block and Schematic Diagrams --------------------------19
10.1. Schematic Diagram Notes ---------------------------19
10.2. Block Diagram ------------------------------------------20
10.3. Schematic Diagram -----------------------------------21
11. Parts Location & Replacement Parts List -------------28
11.1. Different Part List ---------------------------------------28
11.2. Exploded View ------------------------------------------29
11.3. Stand Assy Exploded View --------------------------30
11.4. Packing Exploded Views -----------------------------30
11.5. Electrical Replacement Parts List ------------------31