1. Safety Precautions
2
1.1 General Guidelines
2
1.2 Touch-Current Check
2
2. Prevention of Electro Static Discharge(ESD) to
Electrostatically Sensitive(ES) Devices
3
3. Chasis Board Layout
4
4. Servicing method
5
4.1 Removing the tilt base
5
4.2 Removing the rear cover
5
4.3 Removing the Switch Unit
6
4.4 Removing the
E
-Board
6
4.5 Removing the
C
-Board
6
4.6 Removing the
IR/LED unit
6
4.7 Removing the D-Board
7
4.8 Removing the Speaker Unit
7
4.9 Removing the
Shield pcb assy
7
4.10 Removing the Shield
case
7
4.11 Removing the
A-Board, B-Board
8
4.12 Removing the
LCD panel
8
5. Service Mode Function
9
5.1 How to enter SERVICE 1
9
1
Design and Specifications are subject to change without notice.
Weight and Dimensions shown are approximate.
WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.
6. Conductor Views
10
6.1 MAIN PCB(TOP)
10
6.2 MAIN PCB(BOTTOM)
11
7. Block and Schematic Diagrams
12
7.1 Schematic Diagram Notes
12
7.2
Signal
Block Diagram
13
7.3 Power
S
c
hematic
Diagram
14
7.4 VCTI
Schematic
Diagram
15
7.5
Memory AMP Schematic Diagram
16
7.6
AD9883 Schematic Diagram
17
7.7
Deinterlace Schematic Diagram
18
7.8
Image Processor Schematic Diagram
19
7.9
LVDS, KEY, Input Schematic Diagram
20
8. Parts Location & Mechenical Replacement
Parts List
2
1
8.1 Part Location
2
1
8.2 Packing Exploded View
2
2
9. Service Parts List
2
3
Contents
and 2
Содержание TX-20LB5F
Страница 12: ...11 Conductor Views 6 2 MAIN PCB BOTTOM ...
Страница 15: ...14 Block and Schematic Diagrams 7 3 Power Schematic Diagram ...
Страница 16: ...15 Block and Schematic Diagrams 7 4 VCTI Schematic Diagram ...
Страница 17: ...16 Block and Schematic Diagrams 7 5 Memory AMP Schematic Diagram ...
Страница 18: ...17 Block and Schematic Diagrams 7 6 AD9883 Schematic Diagram ...
Страница 19: ...18 Block and Schematic Diagrams 7 7 Deinterlace Schematic Diagram ...
Страница 20: ...19 Block and Schematic Diagrams 7 8 Image Processor Schematic Diagram ...
Страница 21: ...20 Block and Schematic Diagrams 7 9 LVDS Key Input Schematic Diagram ...
Страница 23: ...22 Parts Location Mechanical Replacement Parts List 8 2 Packing Exploded View ...
