Epson PowerLite 5000 Service Manual Page 69
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EPSON PowerLite 5000 Service Manual
3-3
Projector Lens Unit
The projector lens unit is aligned (position and mounting torque) in the factory. If the
alignment is modified, pixel divergence will occur, creating unclear images.
Electrical Corrections: Driver Board
Some parts in the mechanical section of the optical system require adjustments as
mentioned above. In the control circuit (driver board), the output driver for the display
signal is slightly different from the output driver of other devices. The mechanical
section of the optical system (e.g., light valves) must be electrically corrected. To
obtain the best images, mechanical adjustments and electric corrections must be
made. For this reason, some correction values are written to flash ROM on the driver
board before shipping. Because this factory correction is necessary to match the
optical system with the electrical system, the driver board and the optical block
(consisting of the optical head/light guide unit) make one set.
At factory shipment, the following correction data is stored in the flash ROM on the
driver board for the specified optical engine.
Gamma adjustment data
Flicker adjustment data
Ghost contrast adjustment data
Sub contrast adjustment data
A special device and skilled engineer are necessary for writing correction values,
therefore the data cannot be adjusted in the field.
3.1.5 Cautions For Field Maintenance
Observe the following procedures when you repair the projector. Otherwise,
display quality is not guaranteed, and EPSON repair service will no longer be
available.
• Do not disassemble the optical block or loosen any screws.
• If either the optical block or the driver board needs replacement, replace them as
a set. Also, when you send them back for repair, send them back as a set
(optical engine).
• Because the optical block and driver board make one set, you should never
change its combination (that is, use only the new driver board with the older
parts).
- Service Manual 1
- PowerLite 5000 2
- VCCI COMPLIANCE STATEMENT 3
- REVISIONS 3
- COPYRIGHT INFORMATION 3
- TRADEMARK INFORMATION 3
- INTRODUCTION 4
- PRECAUTIONS 5
- Contents 7
- CHAPTER 4 TROUBLESHOOTING 9
- APPENDIX A 9
- 1.1 PRODUCT FEATURES 10
- 1.2 PARTS OF THE PROJECTOR 11
- Figure 1-3 12
- Figure 1-4 12
- Figure 1-5 13
- Figure 1-6 13
- Figure 1-8 14
- Figure 1-9 15
- 1.3 CONNECTIONS 16
- Power Book 18
- Table 1-1 18
- Video Devices 19
- Audio Devices 19
- 1.4 MAIN COMPONENTS 20
- FR board 21
- CN board 21
- Receptor boards 21
- Speakers 22
- Inlet unit 22
- Filter unit 22
- Power supply unit 23
- Lamp inner housing 23
- Control panel 23
- Optical engine 24
- Top side view 24
- Bottom side view 24
- 1.5 SPECIFICATIONS 25
- POWER SUPPLY 26
- 1.6 INTERFACE SPECIFICATIONS 27
- 1.6.5 S-Video 28
- 1.6.6 Video-In 29
- 1.6.7 Audio In L/R 29
- 1.6.8 Mouse / Com 1/2 30
- 2.1 HARDWARE 31
- Figure 2-2 33
- FC board 34
- Figure 2-3 34
- Figure 2-4 35
- 2.2 POWER SUPPLY UNIT 36
- Functional Outline 37
- Figure 2-7 38
- 2.3 MAIN BOARD 39
- • Lamp power 40
- • Backup Power 40
- 2.4 DRIVER BOARD 42
- Figure 2-11 44
- 2.5 CONTROL PANEL 45
- 2.6 AU BOARD 46
- 2.7 FR BOARD 48
- Figure 2-16 49
- 2.8 CN BOARD 50
- Figure 2-19 51
- Figure 2-20 51
- Figure 2-21 52
- 2.10 SPEAKER UNIT 53
- 2.11 LIGHT GUIDE BLOCK 54
- • Lens Arrays A and B 55
- 2.12 LAMP INNER HOUSING 56
- Light source lamp 57
- Fuse board (FU board) 58
- 2.13 SENSORS/SWITCHES 59
- 2.13.1 Filter Cover Switch 60
- 2.13.2 Interlock Switch 61
- 2.13.3 Safety Switch 61
- 2.13.5 LV Thermistor 62
- 2.13.4 Lamp Thermistor 62
- 2.13.6 PBS Thermistor 63
- 2.14 BOARD CONNECTIONS 64
- Figure 2-37 65
- Figure 2-38 65
- AC InIet 66
- Power Supply Connector 66
- Connector Board 66
- 3.1.1 Preparatory Procedures 67
- 3.1.4 Mechanical Adjustments 68
- Driver Board 69
- 3.1.6 Precautions 70
- Figure 3-1 71
- Figure 3-2 72
- Figure 3-3 72
- Figure 3-4 73
- Figure 3-5 74
- Figure 3-6 74
- Figure 3-7 75
- Figure 3-8 75
- Figure 3-9 76
- Figure 3-10 76
- Figure 3-11 77
- Figure 3-12 77
- Figure 3-13 78
- Figure 3-14 78
- Caution: 79
- 3.2.8 Removing the Main Board 80
- Figure 3-18 81
- 3.2.9 Removing the AU Board 82
- Figure 3-20 83
- Figure 3-21 84
- 3.2.11 Removing the FR Board 85
- Figure 3-24 86
- Figure 3-25 86
- Figure 3-26 87
- Figure 3-27 88
- Figure 3-28 88
- Figure 3-29 89
- Figure 3-30 90
- Figure 3-31 90
- Figure 3-32 91
- Figure 3-33 92
- Figure 3-34 92
- 3.2.20 Removing the CN Board 93
- Figure 3-37 94
- 3.2.22 Removing the FC Board 95
- Figure 4-1 97
- Figure 4-2 98
- Figure 4-3 99
- Power ON/OFF 100
- Continued from page 4-5 101
- Go to start 101
- Display/Picture 102
- Figure 4-7 103
- Audio Output 104
- Control Panel 105
- Remote Control 106
- Mouse/COM 107
- Figure 4-12 108
- A.1 Parts List 109
- A.2 Exploded Diagrams 112
- Figure A-2 113
- Figure A-3 114
- Figure A-4 115
- Figure A-5 116
- Figure A-6 117
- Figure A-7 118
- Figure A-8 119
- Figure A-10 120
- Figure A-11 121
- Figure A-12 122
- Figure A-13 123
- Figure A-14 124
- Figure A-15 126
- Figure A-16 127
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