Panasonic TX-22LT2F, Service Manual

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22lt2f.html
Table Of Contents
COVER
1 Safety Precautions
1.1 General Guidelines
1.2 Touch-Current Check
2 Prevention of Electro Static Discharge (ESD) to Electrostatically Sensitive (ES) Devices
3 About lead free solder (PbF)
4 Self Check
5 Chasis Board Layout
6 Servicing method
6.1 Removing tilt base
6.2 Removing rear panel
6.3 Removing speaker unit
6.4 Removing chassis
6.5 Removing A-Board
6.6 Removing B-Board (with tuner assembly)
6.7 Removing DG-Board
6.8 Removing H1-Board and H2-Board
6.9 Removing P1-Board
6.10 Removing P2-Board
6.11 Removing K-Board
6.12 Removing V-Board
6.13 A-Board servicing
7 Service Mode Function
7.1 How to enter SERVICE 1
7.2 How to enter SERVICE 2
7.3 Option Description
8 Conductor Views
8.1 A-Board
8.2 B, H1, H2, K, P1 and P2-Board
8.3 DG-Board
9 Block and Schematic Diagrams
9.1 Schematic Diagram Notes
9.2 Power Block Diagram
9.3 Signal Block Diagram
9.4 Interconnection Schematic Diagram
9.5 A-Board (1 of 7) and H1-Board Schematic Diagram
9.6 A-Board (2 of 7) and H2-Board Schematic Diagram
9.7 A-Board (3 of 7) Schematic Diagram
9.8 A-Board (4 of 7), B-Board, K-Board and V-Board Schematic Diagram
9.9 A-Board (5 of 7), P1-Board and P2-Board Schematic Diagram
9.10 A-Board (6 of 7) and P1-Board Schematic Diagram
9.11 A-Board (7 of 7) Schematic Diagram
9.12 DG-Board (1 of 7) Schematic Diagram
9.13 DG-Board (2 of 7) Schematic Diagram
9.14 DG-Board (3 of 7) Schematic Diagram
9.15 DG-Board (4 of 7) Schematic Diagram
9.16 DG-Board (5 of 7) Schematic Diagram
9.17 DG-Board (6 of 7) Schematic Diagram
9.18 DG-Board (7 of 7) Schematic Diagram
10 Parts Location & Mechanical Replacement Parts List
Service Manual
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ORDER NO. ITD0203006C2
22” Diagonal LCD TV
●
TX-22LT2F
LH4 Chassis
Specifications
Power Source
AC 100~240V, 50/ 60Hz
Power Consumption
Average use: 67W
Stand-by condition: 5W
TV set: DC 15V, 4.1 A max.
LCD
22-inch(558mm), 16:9 aspect ratio LCD panel
Screen Size
19.17-inch (486.7mm)(W) x 10.77-inch (273.6mm)(H) x
22-inch (558mm)(Diagonal)
Sound
Speaker
Tweeter (4 x 7cm 2pcs, 8
Ω
), Woofer (Ø 5cm 2pcs, 4
Ω
)
Audio Output
9W (2.5W+ 2.5W+ 4.0W (Woofer)), 10% THD
Headphones
M3(3.5 mm) Jack x 1 8
Ω
impedance
FEATURES
Aero-Hammer ® Double Woofer System (2Way 4Speaker System)
file:///C|/Documents and Settings/eDOK/
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