Toshiba TLP-450U, Service Manual

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SECTION 1
PART REPLACEMENT AND ADJUSTMENT PROCEDURES
SECTION 2
SERVICING DIAGRAMS
SECTION 3
PARTS LIST
1 . SAFETY PRECAUTION ...................................................... 3 - 1
2 . NOTICE ..................................................................................... 3 - 1
3 . ABBREVIATIONS .................................................................. 3 - 1
3-1. Integrated Circuit (IC) .................................................... 3-1
3-2. Capacitor (Cap) ................................................................ 3-1
3-3. Resistor (Res) ..................................................................... 3-1
3-11. Input PC Board ............................................................... 1-6
3-12. Lens .................................................................................... 1-6
3-13. Mirror Box ....................................................................... 1-6
3-14. LCD Block and LCD Panel ........................................... 1-7
3-15. CAM SW PC Board (Only for TLP451/651) ............ 1-9
3-16. Arm Assembly (Only for TLP451/651) ...................... 1-9
3-17. Switch (Only for TLP451/651) .................................. 1-10
3-18. Camera PC Board (Only for TLP451/651) ............. 1-10
3-19. Lamp PC Board (TLP451/651) .................................. 1-10
4 . ELECTRICAL ADJUSTMENT ....................................... 1 - 1 1
4-1. LCD Drive Adjustment .................................................. 1-12
5 . LED DISPLAY ...................................................................... 1 - 1 6
1 . PART CONFIGURATION AND THEIR SYMBOLS 2 - 1
1-1. Replacing Subminiature “CHIP” Parts ....................... 2-1
1-2. Precoutions for Part Replacement ................................ 2-2
1-3. Solid Resistor Indication .................................................. 2-2
1-4. Capacitance Indication .................................................... 2-2
1-5. Inductor Indication ........................................................... 2-3
1-6. Waveform and Voltage Measurement .......................... 2-3
2 . EACH SIGNAL FLOW ........................................................ 2 - 4
2-1. Operation at RGB Signal Input ..................................... 2-4
2-2. Video Signal ....................................................................... 2-4
2-3. Operation at Y/Pb/Pr Signal and HDTV Signal Input2-5
2-4. Camera Input Operation ................................................ 2-5
2-5. Camera Overlay Signal ................................................... 2-5
3 . BLOCK DIAGRAMS ............................................................ 2 - 7
3-1. RGB Block Diagram ........................................................ 2-7
3-2. Input Block Diagram ........................................................ 2-8
3-3. Main Block Diagram ........................................................ 2-9
3-4. Digital Block Diagram ................................................... 2-11
4 . PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ................................................. 2 - 1 2
5 . CIRCUIT DIAGRAMS ...................................................... 2 - 1 5
5-1. Drive Circuit Diagram (for TLP650, TLP651) ........ 2-15
5-2. Drive Circuit Diagram (for TLP450, TLP451) ........ 2-19
5-3. Main Circuit Diagram (for TLP650, TLP651) ......... 2-23
5-4. Main Circuit Diagram (for TLP450, TLP451) ......... 2-27
5-5. Micon Circuit Diagram ................................................. 2-31
5-6. RGB Circuit Diagram .................................................... 2-35
5-7. Input Circuit Diagram ................................................... 2-39
5-8. Power Supply Circuit Diagram .................................... 2-42
5-9. Camera Interface Circuit Diagram ............................ 2-45
5-10. ............................................ FAN Control Circuit Diagram
2-47
6 . PC BOARDS ......................................................................... 2 - 4 9
6-1. Input PC Board ............................................................... 2-49
6-2. CAM Switch PC Board .................................................. 2-50
6-3. Main PC Board ............................................................... 2-51
6-4. RGB PC Board ................................................................ 2-55
6-5. LED PC Board ................................................................ 2-55
6-6. Sub Digital PC Board .................................................... 2-56
1 . LOCATION OF MAIN PARTS ......................................... 1 - 1
2 . LOCATION OF PC BOARDS ........................................... 1 - 1
3 . REPLACEMENT OF MECHANICAL PARTS ............ 1 - 2
3-1. Camera Arm Assembly (Only for TLP451/651) ........ 1-2
3-2. Lamp Assembly ................................................................. 1-2
3-3. Front Cover and Top Cover .......................................... 1-3
3-4. Main PC Board ................................................................. 1-3
3-5. RGB PC Board .................................................................. 1-3
3-6. Handle and Fan Assembly ............................................... 1-4
3-7. Power Supply Unit ............................................................ 1-4
3-8. Filter Assembly .................................................................. 1-5
3-9. Lamp House ....................................................................... 1-5
3-10.Optical Engine .................................................................. 1-5
CONTENTS
SAFETY PRECAUTIONS .............................................................. I
IMPORTANT PRECAUTIONS .................................................... I
IMPORTANT SAFETY INSTRUCTIONS .............................. II
4 . EXPLODED VIEWS .............................................................. 3 - 2
4-1. Packing Assembly ............................................................. 3-2
4-2. Remote Control Unit ........................................................ 3-2
4-3. Chassis Assembly ............................................................... 3-3
4-4. Arm Assembly (TLP451, TLP651) ................................ 3-4
5 . PARTS LIST ............................................................................. 3 - 5