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DLP PROJECTOR
SERVICE MANUAL
MODEL PE8700
CAUTION
BEFORE SERVICING THE PROJECTOR,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
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Contents 1. Safety Precautions 2 2. Servicing Precautions 2 3. Engineering Specification 3 4. Spare Parts List 23 5. Block Diagram 24 6. Packing Description 25 7. Appearance Description 26 8. Alignment Procedure 28 9. Trouble Shooting Guide 39 10. Factory OSD Operation 49 11. Firmware upgrade procedure 56 12. RS232 Codes 58 13. Schematics
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1. Safety Precautions 1. Be sure to read this manual before servicing and save it for future reference. 2. The lamp becomes extremely hot during operation. Allow the projector to cool for approximately 45 minutes prior to removing the lamp assembly for replacement. Do not operate lamps beyond the rated lamp life. Excessive operation of lamps beyond the rated life could cause them to explode on rare occasions. 3. Never replace the lamp assembly or any electronic components unless the proj
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3. Engineering Specification Superscripts indicate the method in Appendix B used for a given measurement, unless otherwise noted. 1.0 Image Quality All tests must adhere to the assumptions in Appendix A 1.1 Brightness (In ‘optical test’ mode) 1.1.1 Typical 660 ANSI Lumens 1.1.2 Minimum 450 ANSI Lumens 1.2 Brightness Uniformity (In ‘optical test’ mode) 1.2.1 Typical 73 % 1.2.2 Minimum 60 % 1.3 Contrast Ratio (In ‘optical test’ mode) 1.3.1 Peak Contrast 1400:1 (Minimum) 1.4 Ligh
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Keystone 1.0% 1.9 Descriptive Image Quality There should be no streaks or jitter, good saturated colors, and crisp resolution. Must adhere to Appendix E 1.10 Lateral Color 1 Pixel 1). 52” Diagonal for OPT test; 2). Distance 3.0m for Focus test. ( Tele @ the same Throw 1.11 Screen Size for Testing Distance. ) Criteria: Pixel clear ( same as test chart ) 2.0 Optical 2.1 Optical Structure Single Chip 0.8” 12° tilt DMD ( HD2 ) from Texas Instruments (HD2 Front Projection Image Qual
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2.7.1 PC Mode 1280 x 720 pixels 1280 x 720 pixels 2.7.2 Video Mode 3.0 Mechanical & Cosmetic 3.1 Dimensions 400L x 347W x 116H 3.2 Weight 16.7 lbs (7581 g) 3.3 Security Slot Kensington compatible slot 150N break away force 3.4 Feet 4 adjustable feet 3.5 Lamp Replace Position Front 4.0 Compatibility Supporting timing: see appendix E 4.1 RGB PC Compatible VGA, SVGA, XGA 4.2 Video Signal Composite, S-Video, Y/C /C B R 4.3 HDTV DTV Y/P /P , DTV RGBH
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6.2 Control 6.2.1 IR Receivers 6.2.1.1 Location 2receiver, located on the front and rear of this projector 6.2.1.2 Range 8m ( front ) / 5m ( rear ) with 30 degree horizontal Angle and 15 degree vertical angle 7.0 Power Requirements 7.1 Power Supply VAC 100 – 240 Full range switch (50/60Hz), 3 Wire Grounded 7.2 Power Consumption 310W max. 7.3 Power Connector IEC 34 dB (Max) @ 25 sea level 8.0 Audible Noise Level 9.0 Thermal 9.1 Surface Metal 60 °C 9.2 Surface Plastic 65 °
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14.4.1 Straight Drop 50mm 14.4.2 Tilt Over Should be able to fall over from tilting without taking any damage. Must Adhere to Appendix B 14.5 Gas No corrosive, toxic, or combustible gas should be emitted 14.6 Electrostatic Discharge comply to the acceptance criteria as specified in EN 61000-4-2/1995 15.0 Regulatory UL, CE, FCC Class B. Must Adhere to Appendix B Section 10.0 th 15.1 Safety Requirements UL compliance: UL6500 (2 Version) CSA compliance: E60065-00 TUV compliance:
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Appendix A Optical Measurement This part of the Optical Test Instruction describes those measurements to be executed during the production of the optical engines. Content: A1 BRIGHTNESS A2 BRIGHTNESS UNIFORMITY A3 BRIGHTNESS DIFFERENCE A4 ANSI CONTRAST A5 PEAK CONTRAST A6 LIGHT LEAKAGE A7 IMAGE DISTORTION A8 THROW RATIO A9 ZOOM RATIO A10 FOCUS RANGE A11 COLOR A12 COLOR UNIFORMITY A13 OPTICAL KEYSTONE (FIXED) General requirements 1. The unit shall be allowed to stabili
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Practical consideration 1. When measuring contrast manually, operators should not wear white clothing since light reflected from white clothing can influence the measurement. 2. Unless otherwise specified the projection lens is set in the widest zoom position since zoom function can influence the measurement. 3. Measurement should be performed with Minolta Chromameter, Model CL-100, or equivalent. A1. BRIGHTNESS Unit: Lumen Brightness: Default Contrast: Default W: width of proje
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A2. BRIGHTNESS UNIFORMITY Unit: % Brightness: Default Contrast: Default MIN (E10,E11,E12,E13) Uniformity = L1 +L2 +L3 +L4 +L5 +L6 +L7 +L8 +L9 9 1/20w 1/20h E10 E11 L5 E12 E13 A3. BRIGHTNESS DIFFERENCE Unit: % Brightness: Default Contrast: Default Brightness Difference= (MAX (E10,E11,E12,E13) − MIN (E10,E11,E12,E13)) L1 + L2 + L3 + L4 + L5 + L6 + L7 + L8 + L9 9 A4. ANSI CONTRAST Unit: Contrast : 1 Brightness: Default Contrast: Default Contrast Ratio shall be determ
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A5. PEAK CONTRAST Unit: Contrast : 1 Brightness: Default Contrast: Default Contrast Ratio = Lux value at the center of a solid white screen/the lux value of a solid black screen A6. LIGHT LEAKAGE Unit: Lux Brightness: Default Contrast: Default Leakage = The maximum light leakage of a solid black screen outside the projected image A7. IMAGE DISTORTION Unit: % Brightness: Default Contrast: Default Measurement procedure: Measure the dimensions H1, H2 and H3, wi
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A9. ZOOM RATIO Unit: Ratio : 1 Brightness: Default Contrast: Default Zoom ratio = maximum / minimum image diagonal size at a fixed projection distance. A10. FOCUS RANGE Unit: m (Max~Min) Brightness: Default Contrast: Default The minimum/maximum focus distance is the minimum/maximum projection distance (front side projection lens and the image lane), expressed in meter, at which the image is still at its best for focus. A11. COLOR Unit: x, y Measurements at the center (exc
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Appendix B Design Verification Test Procedure 1.Purpose This standard establishes the environmental specification for projector related products, which defines the level of product performance and reliability in the field. It is not necessary the intent of these specification to simulate a typical user environment, but rather to provide for a level of product robustness that when applied over a wide range of manufacturing variability and environmental usage conditions. 2.Test Summary
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3.Definition 3.1 Failure Criteria: The product is expected to perform to its full potential without loss of function, performance, critical parametric changes, and other undesirable anomalies, over the applied boundaries of this specification. The following product failure are not allowed within the boundaries defined in this specification: 1.Failure including permanent damage, critical parametic changes (optical performance defined in Appendix A), and latent defects. 2.Failure requiri
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Appendix C Drawings and Attachments Drawing 1: Top view of BENQ PE8700 video projector 15
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16
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Appendix D HD2 Front Projection Image Quality Specification 1. SCOPE This document specifies the image quality requirements applicable to the HD2 Component Set for Front Projection image display. The HD2 Component Set provides digital imaging functionality based on Digital Micromirror Device (DMD) technology. 2. DEFINITIONS 2.1 Blemish A blemish is an obstruction (dark blemish), reflection, or refraction of light (light blemish) that is visible, but out of focus in the projected ima
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2.8 Gray 6 test screen This screen is used to test light blemishes and bright pixels. All areas of the screen are colored at a specific gray level, based on MS Paint 0-255 RGB scale: Major Light Blemish Blue Value 6 Red Value 6 Green Value 6 2.9 Gray 10 test screen This screen is used to test light blemishes and bright pixels. All areas of the screen are colored at a specific gray level, based on MS Paint 0-255 RGB scale: Major Light Blemish Blue Value 10 Red Value 10 Gr
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2.12 Red Ramp test screen This screen is used to test light border blemishes and bright pixels. All areas of the active area are colored at a specific gray level, based on MS Paint 0-255 RGB scale: Major Dark Blemish Blue Value 0 Red Value Start 0,end 255 Green Value 0 3. ACCEPTANCE REQUIREMENTS 3.1 Test Conditions (as tested in OEM projector) · Projector degamma correction shall be linear. Using HD Control “Curtain” Mode is equivalent. · Image noise reduction algorithm
