Service Manual
Model No.: LET40T3
1
CONTENTS
Chapter 1.General Information
1-1. Document Information
.......................................................................3
1-2. General Guidelines
..............................................................................3
1-3. Important Notice
...................................................................................3
1-3-1. Follow the regulations and warnings
..................................................... 3
1-3-2. Be careful to the electrical shock
........................................................... 3
1-3-3. Electro static discharge (ESD)
............................................................... 3
1-3-4. About lead free solder (PbF)
.................................................................. 4
1-3-5. Use the genewing parts (specified parts)
.............................................. 4
1-3-6. Safety check after repairment
................................................................ 4
1-3-7. Ordering Spare Parts
............................................................................. 6
1-3-8. Photo used in this manual
..................................................................... 6
1-4. How to Read this Service Manual
.................................................. 7
1-4-1. Using icons:
........................................................................................... 7
Chapter 2. Specificatio
n
2-1. Specification list
...................................................................................8
2-2. External pictures (four faces)
..........................................................9
Chapter 3. Disassemble and Assemble
3-1. Remove the Stand
.............................................................................10
3-2. Remove the Power Cord
................................................................ 11
3-3. Remove the Back Cover
.................................................................. 11
3-4. Remove the Mainboard
................................................................... 11
3-5. Remove the speaker
........................................................................ 11
3-6. Remove the Keypad
.........................................................................12
3-7. Remove the Remote Control Board
........................................... 12
3-8. Remove the Stand backstop
.........................................................12
3-9. Remove the indicator light
............................................................12
Chapter 4. Location of Controls and Components
4-1. Board Location
...................................................................................13
4-2. Main Board
..........................................................................................13
4-2-1. Function Description:
........................................................................... 14
4-2-2. Connector definition
............................................................................. 14
4-3. Power Supply Board
.........................................................................14
