Benq PE8700 User Manual 2

DLP PROJECTOR

SERVICE MANUAL

MODEL：PE8700

CAUTION

BEFORE SERVICING THE PROJECTOR,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

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 69

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 projector is

unplugged.

4. To reduce the risk of electric shock, do not disassemble this appliance. Take it to a

qualified technician when service or repair is required. Incorrect re-assembly can cause

electric shock when the appliance is subsequently used.

5. Do not place this product on an unstable cart, stand, or table. The product may fail,

sustaining serious damage.

2. Servicing Precautions

1. When replace the lamp, be sure to avoid burns your fingers because the lamp becomes

too hot.

2. Never touch the lamp bulb with a finger or anything else. Never drop it or give it a shock.

They may cause bursting of the bulb.

3. This projector is provided with a high voltage circuit for the lamp. Do not touch the

electric parts of power unit when turn on the projector.

4. Do not touch the exhaust fan during operation.

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 Light Leakage

1.4.1 Blue Edge Procedure: Test @ distance 3m with 100% white pattern

Criteria: Color coordinateΔx,Δy≦0.015 (compared with the

center)

1.4.2 Light Leakage out of

Active Area

1.4.3 Reflective Edge Condition: distance 3m or image of 100” wide

1.4.4 Blemish / Dust Test Pattern: Blue 90 with linear de-gamma / Gray 6

1.5 Color All Color Measurements must adhere to the assumptions in

X Y

1.5.1 100% Gray (White) .274 ± .04 .318 ± .04

1.5.4 Red .647 ± .04 .341 ± .04

1.5.5 Green .304 ± .04 .566 ± .04

< 1 lux @ diagonal 60”

Test Pattern: without connecting any source to projector

Criteria: No horizontal and vertical lines outside of the image

Criteria: Follow HD2 DMD image quality specifications

Appendix A

TBD --PPR final

1.5.6 Blue .129 ± .04 .080 ± .04

1.6 Color Uniformity20 x y

1.6.1 100% Gray (White)

1.6.2.1 L1->L9 ±.04 ±.04

1.6.2.2 E10->E13 ±.04 ±.04

1.7 Mirror Defects / Dot Defects Dark pixels<=2, bright pixels =0 (See Appendix D)

1.8 Image Distortion Pincushion 1.0%

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;

1.11 Screen Size for Testing

2). Distance 3.0m for Focus test. ( Tele @ the same Throw

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 Quality Specification described in

Appendix D)

2.2 Projection Lens Manual Zoom & Focus

2.2.2 F/#

2.8

2.2.3 Throw Ratio 100” Diagonal at 3m ( Wide )

2.2.4 Zoom Ratio 1.2 : 1

2.2.5 Focus and flare As following chart:

2.3 Lamp

2.3.1 Maker Ushio

2.3.2 Model NSH 210 MD

2.3.3 Type DC lamp

2.3.4 Lamp Wattage 210 watts

2.3.5 Lamp life 1000 Hours ( Typical )

2.4 Focus Distance 1.5 – 5m

2.5 Keystone Correction

2.5.1 Electronic ± 12°

2.6 Colors 24-bit color

2.7 Native Resolution

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/CB/CR

4.3 HDTV DTV Y/PB/PR , DTV RGBHV ,DTV DVI-I ( 480P, 1080i, 720P,

576P, 540P)

4.4 Image Inversion Mirror, Upside-down, Mirror Upside-down

4.5 Scaling Scaling from other resolutions to native by O-plus

chip

scaling

4.6 Aspect ratio ANAMORPHIC, 4x3, LETTER BOX, VIRTUAL WIDE.

5.0 Interface Connectors

5.1 RGB Input DVI x 1 (include 5.2.5)

5.2 Video Input

5.2.1 Composite

RCA x 1

5.2.2 S-Video S-Video x 1

5.2.3 Component RCA x 3

5.2.4 Progressive component

BNC x 5

and DTV RGBHV

5.2.5 Digital Video DVI x 1 with HDCP

5.3 RS232C Input

Telephone jack

6.0 Electrical

6.1 RGB

6.1.1 Input

6.1.1.1 Amplitude 0.7 ± 0.1 VPP at 75Ω termination, positive bright

6.1.1.2 Input

75Ω

Impedance

6.1.1.3 Synch TTL compatible

6.1.2 Computer

Compatibility

The unit should be compatible with normal computer formats

ranging from VGA to XGA.

6.1.3 Video Compatibility Don’t use BUBUKAU DVD for test equipment.

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

8.0 Audible Noise Level

IEC

34 dB (

Max) @ 25℃ sea level

9.0 Thermal

9.1 Surface Metal

9.2 Surface Plastic

9.3 Exhaust Air

9.4 Screws, Terminals

60°C

65°C

80°C

70°C

10.0 Contamination

10.1 Prevention Optical system is closed

10.2 Dust in Optical Path No noticeable dust

11.0 Included Accessories

11.1 Cables Power Cord Set (US, UK, Euro) x 1, VGA Cable (1.8m) x 1,

Projector Common Cable x 1

11.2 Printed Matter User’s manual

11.3 Remote Control IR Remote x 1, AAA Batteries x 2

12.0 User Interface

12.0 Backlight

12.1 Operator Panel YES

12.2 Indicators Power Status LED, Lamp Status LED

12.3 Remote Control Front IR receiver , Rear IR receiver

12.4 Onscreen Menu Should be in 3 languages (English, French, Spanish )

12.8 User’s Manual Should be in 3 languages (English, French, Spanish )

13.0 Reliability

13.1 General Failure Def. See Appendix B

13.2 MTBF 20000 hours except for DMD chip , lamp , fans and color wheel.

14.0 Environmental

14.1 Operating 10 – 35°C, 20 – 90%RH, without condensation

14.2 Storage -10 – 70°C, 20 – 90%RH, without condensation

14.3 Altitude

14.4 Shock

0 – 6000 feet above sea level, ambient 30 ℃

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

15.1 Safety Requirements UL compliance: UL6500 (2th Version)

CSA compliance: E60065-00

TUV compliance: IEC60065:2001

CCC: GB8898; GB13837; GB17625.1: 1998

15.1 EMI Requirements 1. CE Mark compliance: EMC: 89/336/EEC

EN 55013:1990+A12 :1994+A13 :1996+A14 :1999

EN 61000-3-2:1995+A1 :1998+A2 :1998+A14 :2000

EN 61000-3-3:1995+A1 :2001

EN 55020:1994+A1 :1996+A12/A13/A14 :1999

IEC 61000-4-2/2001

16.0 Packaging

16.1 Packaging Form Must adhere to attached file

16.1.1 Dimensions 537 x 520 x 260 mm

16.1.2 Weight TBD

16.1.3 Palletization 1140 x 1050 x 120 mm

16.1.4 Carton Labeling Must adhere to attached file

16.2 Vibration Must adhere to Appendix B

16.3 Drop Test Must adhere to Appendix B

IEC 61000-4-3/2001

IEC 61000-4-4/1995+A1:2000+A2:2001

2. FCC

FCC Part 15B

3. C-Tick

ASIN2S 1053:1996

4. VCCI

VCCI/2002(15

Edition)

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 stabilize without further adjustment for a

minimum of 10 minutes, at nominal ambient room temperature of 25°C,

before making measurements.

2. Measurements shall take place in a light proof room, where the only source of

illumination is the projector. Less than 1% of the light on the screen shall be

from any source other than the projector.

3. All measurements shall be made on flat screens that do not provide any

advantage to the performance of the unit

4. All measurements shall be made at standard color temperature setting, 100%

white image (per ANSI IT7.228-1997), except where noted

 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 projected image; H: height of projected image

A (Area) = W * H (in meters)

987654321

ANSI Lumens = )()(

LLLLLLLLL

mAlux

∗

 A2. BRIGHTNESS UNIFORMITY

Unit: %

Brightness: Default

Contrast: Default

Uniformity =

EEEEMIN

1/20w

)13,12,11,10(

987654321

LLLLLLLLL

++++++++

E10

E12

E11

E13

 A3. BRIGHTNESS DIFFERENCE

Unit: %

Brightness: Default

Contrast: Default

Brightness Difference=

−

1/20h

))13,12,11,10()13,12,11,10((

EEEEMINEEEEMAX

987654321

LLLLLLLLL

++++++++

 A4. ANSI CONTRAST

Unit: Contrast : 1

Brightness: Default

Contrast: Default

Contrast Ratio shall be determined from illuminance values obtained from a

black-and-white ”chessboard” pattern consisting of 16 equal rectangles. The

white rectangles shall be at 100% gray and the black rectangles at 0% gray.

Illuminance measurements shall be made at the center of each of the rectangles.

Contrast Ratio = Average lux value of the white rectangles/Average lux value

of the black rectangles

−

 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, with H3 at the half image width, as

shown above for both zoom settings. For each the distortion is defined as:

3*221

distTV

=−

HHH

%100*

3*2

All should be within the absolute specification tolerance.

 A8. THROW RATIO

Unit: Ratio : 1

Brightness: Default

Contrast: Default

Throw ratio = projection distance / the width of the projected image

−

 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 (except in the case of color uniformity

measurements) of a screen which is entirely of the color being measured and

at default brightness and contrast

settings.

 A12. COLOR UNIFORMITY

Unit: x, y

Difference between any two points out of Lx and Ex should not exceed the

specification for the given color.

 A13. OPTICAL KEYSTONE (FIXED)

Unit: %

Brightness: Default

Contrast: Default

Measure the dimensions W1, W2 and W3 at the half image height, as shown

above. The distortion is defined as:

distTV

−

=− & %100*

%100*

distTV

=−

331W

332W

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

Dynamic Testing Specification

Package Drop 76cm, 1 drop per orientation, all 6 primary surfaces, plus a selected

corners, and three selected edges, total of 10 drops

Package Vibration

Shock, non-operating 50g, 20ms half-sine, all primary axis, 1 shock per orientation, total of 3

Security Lock 150N break away force

Fragility

Atmospherics

Temperature/Humidity,

operating

Random , 0.01g2/Hz, 5~100Hz, all primary axis, 20 min per orientation,

total of 60min

Sine, 0.5g, 5~200Hz, 1 octave/min, 15 min dwell on each resonant

frequency, all primary axis, one sweep (30min minimum) per orientation,

total of 90+min

shocks

Shock, 50g, 20ms half-sine, all primary axis, 1 shock per orientation, total

of 3 shocks

Accelerate Life Test (operating), 65 Thermal shock(bare board), -65~125

Input Voltage, 90~264V Input RGB signal, 0.7V±0.1

10~35oC/10~80RH, 48hr

C, 72hr

C, 48hr

Temperature/Humidity,

non-operating

Altitude, operation

Safety/EMC

UL/cUL

TUV Rheinland

Fcc/CE/C-Tick

-10~70oC/10~80RH, 48hr

0~6000ft@30oC, 4hr

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 requiring operator intervention.

3.Failure violating external laws, regulatory agency standards, and government

directives.

4.Failure resulting in a safety, potential safety, issue.

3.2 EUT: Equipment under Test

3.3 Q: Peak Acceleration Response divided by acceleration input peak

4.Test Order

Atmospherics, Dynamic, and Safety test sets require separate units and can be

processed in parallel. EUT testing shall be performed serially within each set.

Set 1 (3 units) Set 2 (3 units) Set 3 Dynamics: Atmospherics: Safety/EMC:

Package Drop Temperature/Humidity, Operating EFT

Package Vibration Temperature/Humidity,

ESD

Non-operating

Shock Altitude, Operating EMI-Radiated

Bench Drop Aging EMI-Conducted

EMI-Susceptibility

Appendix C Drawings and Attachments

Drawing 1: Top view of BENQ PE8700 video projector

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 image under specified conditions of

inspection (see Table 1). It is caused by a particle, scratch, or other artifact located in the

image illumination path.

2.2 Dark pixel

A dark pixel is a single pixel or mirror that is non-functional (stuck) in the OFF position.

2.3 Bright pixel

A bright pixel is a single pixel or mirror that is non-functional (stuck) in the ON position.

2.4 Unstable pixel

An unstable pixel is a single pixel or mirror that does not operate in sequence with

parameters loaded into memory. The unstable pixel appears to be flickering

asynchronously with the image.

2.5 Adjacent pixels

Adjacent pixels are defined as sharing a common border or common point.

2.6 Border defects

Border defects are bright blemishes (see 2.1) or bright pixel defects (see 2.3) in the

non-active area that may be visible in front projection mode.

2.7 Blue test screen

This screen is used to test for major dark blemishes and dark pixels. All areas of the screen

are colored at a specific blue level, based on MS Paint 0-255 RGB scale:

Major Dark Blemish

Blue Value 90

Red Value 0

Green Value 0

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

Green Value 10

2.10 White 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 255

Red Value 255

Green Value 255

2.11 black 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 0

Green Value 0

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 algorithms “Blue Noise STM” and “Boundary Dispersion” shall be

set to “off”.

· Projector shall be used in front projection mode using a customer-specified screen, and

OEM optical system.

· The diagonal size of the projected image shall be 52 inches (132cm).

· The projected image shall be inspected from a 60 inches (1.52 meter) minimum viewing

distance.

· Projector will be properly focused on the DMD array as shown on the screen.

· Testing time is limited to 20seconds per screen.

· Refer to Table 1 for acceptance criteria, in specified order:

TEST ORDER 1 Major Dark Blemish Blue 90 No dark blemishes visible on Blue 90 2 Dark Pixel Blue 90

3 Border Defects Gray 10 No border defects visible

4 Major Light Blemish Gray 6 No light blemishes visible on Gray 6

TEST SCREEN ACCEPTANCE CRITERIA

0 dark pixels allowed in Zone A Zoned Screen (see below figure 1)

<=2 dark pixels allowed in Zone B

No adjacent dark pixels

5 Light Pixel Gray 6 No light pixels visible on Gray 6

6 Minor Blemishes White or Black

7 Unstable Pixel Red Ramp

Screen(or any other

TABLE 1. Image Quality Specification

Total of Dark and Light Blemishes ≦

(See Test 4 , 5)

No unstable pixels

Notes:

1. The acceptance basis for all cosmetic DMD defects will be the projected image tests

referenced in Table 1.

2. Projected blemish numbers include the shadow of the artifact in addititon to the artifact

itself.(Count=4)

4. The projected image shall not contain any blemish more than 15 cm long, measured on

a 1.32m diagonal screen.

Appendix E Supporting Timings

Table 1: Support Timings by DVI-I Input (Analog or Digital PC signals)

Resolution Vert. Freq

(Hz)

1 VGA 640 x 400 70.089 31.470 25.167 D/A -/+

2 VGA 640 x 480 59.590 31.470 25.167 D/A -/-

3 VGA 640 x 480 85.008 43.269 36.0 D/A -/-

4 SVGA 800 x 600 60.317 37.879 40.0 D/A +/+

5 SVGA 800 x 600 75.000 46.875 49.5 D/A +/+

6 SVGA 800 x 600 85.061 53.674 56.25 D/A +/+

7 XGA 1024 x 768 60.004 48.363 65.0 D/A -/-

8 XGA 1024 x 768 75.029 60.023 78.75 D/A +/+

9 XGA 1024 x 768 84.997 68.677 94.5 D/A +/+

Table 2: Support Timing by DVI-I Input

Index Format

name

Line

Rate

Pixel

Rate

Frame

Rate

Line

active

Hori. Freq

(kHz)

Line

total

Frame

active

Pixel freq

(MHz)

Frame

total

Digital (D)/

Analog (A)

H back

porch

H sync

width

Polarity

V back

porch

V sync

width

(kHz)

1 480p59 31.469 27 59.94 720 858 480 525 59 63 30 6

2 576p50 31.25 27 50 720 864 576 625 68 64 39 5

3 720p50 37.5 74.25 50 1280 1980 720 750 260 40 20 5

4 720p59 44.955 74.176 59.94 1280 1650 720 750 260 40 20 5

5 720p60 45 74.25 60 1280 1650 720 750 260 40 20 5

6 1080i25 28.125 74.25 25 1920 2640 1080 1125 148 44 15 5

7 1080i29 33.716 74.176 29.97 1920 2200 1080 1125 192 44 15 5

8 1080i30 33.75 74.25 30 1920 2200 1080 1125 192 44 15 5

(MHz)

(HZ)

(pixel)

(line)

(pixel)

(line)

Table 3: EDTV and HDTV Timing supported by component (YPBPR) and RGBHV Input

Index Format

name

1 480i 15.734 13.5 59.94 720 858 480 525 59 63 30 6

2 576i 15.625 13.5 50 720 864 576 625 68 64 39 5

3 480p 31.469 27 59.94 720 858 480 525 59 63 30 6

4 576p 31.25 27 50 720 864 576 625 68 64 39 5

5 720p50 37.5 74.25 50 1280 1980 720 750 260 40 20 5

6 720p59 44.955 74.176 59.94 1280 1650 720 750 260 40 20 5

7 720p60 45 74.25 60 1280 1650 720 750 260 40 20 5

8 1080i25 28.125 74.25 25 1920 2640 1080 1125 148 44 15 5

9 1080i29 33.716 74.176 29.97 1920 2200 1080 1125 192 44 15 5

10 1080i30 33.75 74.25 30 1920 2200 1080 1125 192 44 15 5

Line

Rate

(kHz)

Pixel

Rate

(MHz)

Frame

Rate

(HZ)

Line

active

(pixel)

Line

total

(pixel)

Frame

active

(line)

Frame

total

(line)

H back

porch

(pixel)

H sync

width

(pixel)

V back

porch

(line)

V sync

width

(line)

Chapter 4 Spare Parts List

Projector PE8700 99.J5877.B21

NO Parts NO Description

1 55.J2003.001 IR BD HT480W MI

2 55.J5801.011 PCBA MAIN/BD FOR BENQ

3 55.J5824.001 PCBA DMD BOTTOM/BD HT720G

4 55.J1313.001 PCB 1L SENSOR-B BD SL700 X MI

5 65.J2004.001 COLOR WHEEL SIX SEGMENT UNAXI

6 55.J5802.001 PCBA DMD/BD HT720G

7 65.J5801.001 ASSY LENS ZOOM HT720G PROT

8 71.00HD2.A00 IC MUSTANG DMD PREMIUM CLGA

9 65.J3403.001 ASSY BALLAST210W/USHIO DX660

10 55.J2006.010 PCBA KEYPAD/BD HT720G BENQ

11 55.J5817.001 PCBA TRANSLATION/BD HT720G

12 60.J2020.021 ASSY CVR BASE HT720W/BENQ

13 60.J2023.022 ASSY L/C HT720W/BENQ

14 60.J2037.011 ASSY CVR FRONT HT720W/BENQ

15 60.J2038.011 ASSY CVR BACK CONTOR HT720W

16 60.J2112.001 ASSY CVR LENS HT720W BENQ

17 55.J2013.001 PCBA THERMAL SENSOR/B HT480W

18 55.J2021.001 PCB FPC/BD FOR HT480W

19 55.J5810.011 PCBA CONNECTOR/BD FOR BENQ

20 55.J2005.001 PCBA POWER BD HT480W MI

21 55.J5811.001 PCBA PFC/BD HT720G

22 44.J2003.021 CTN AB 455X500X228 HT720G/BEN

23 47.J2008.001 CUSHION FRONT EPE HT480W

24 47.J5804.001 CUSHION REAR EPE HT720G BENQ

25 50.J2103.501 CABLE RGA/DVI-A (WHDDC) 1.8M

26 50.L2508.501 SIGNAL/C DUAL DVI-D/DVI-D 200

27 60.J2028.R01 ASSY AV CABLE RUNCO CL-500

28 98.J2032.B01 HT480W BENQ REMOTE CONTROL

29 60.J2104.CG1 ASSY CSD LAMP MODULE PE8700

5. Black Diagram

RGB DVI

RGB PC

RGB/YPbPr

BNC

YCbCr

YPbPr

S-video

Video

YCbC r

RS232 RJ11

IR (TOP)

12V Trigger O/P

IR (fron t) IR Board

Conntctor Board Main Board

Sil169

(U17)

MUX

(U2,U3,U4)

IR Board

MUX

(U5)

RS232

Download

(U14)

(U12)

12V

(Q2,Q3)

Board

ADC AD9883

(U7)

Video Decoder

SAA7118

(U10)

SDRAM

(U3)

Keyboard

De-inter lace

SII504

(U2)

MCU503

(U4)

Video Port

Scaler

RM1-A

(U5)

CPU RDC8820

(U10)

Fan

Driver

(U1,U3)

Translatio n Board

Protec tion

Circuit

(U4)

Reset IC

(U18)

SDRAM

(U19,U20,

U21)

SRAM

(U9)

Frash (U12)

RS232

Hardware

Monito r

(U14)

DMD Board

HD2

DMD

Color

Cheel

Blaster Lamp

400V

PFC

Board

Power

Board

3.3V

12V

Therm al

Sensor

Fans

Therm al

Break

6. Packaging Description

7. Appearance Description

8. Alignment Procedure

1. DMD Bias Voltage Alignment

Equipment:

- None

Procedure:

1. Watch DMD chip Label

2. Switch the DIP switch on DMD board according to the character on the DMD chip

B C D E

1 of SW H1 1 0 1 0

2 of SW H2 1 1 0 0

0: Left; 1:Right

2.Color Wheel Delay Alignment

Equipment:

- Battery Biased Silicon PIN Detector

- Oscilloscope

- Probe

OSD Default value used for color delay alignment

Item Value Item Value USER>DVI-A> Factory>DLP>

Brightness 0 Brightness 0

Contrast 30 Contrast 49 Color 60 CW delay 20

Tint 15 User>Setup>Whit

Sharpness 0 Red Gamma 66 Filter 2 Green Gamma 66

Color Temp 0 Blue Gamma 66

R gain 512

G gain 512 B gain 512

R Offset 0

G Offset 0

B Offset 0

The default values let optical engine to get maximum contrast and brightness.

Procedure:

1. Probe impedance matches 50 ohm

2. Change Timing and pattern of pattern generator :

Timing : 800x600@60Hz (H:37.879Khz,V:60.317Hz)

pattern : full white

3. Adjust user & factory OSD values to default.

4. Open Factory OSD, and select color wheel delay item.

5. The image will become white.

6. Put the detector on the screen that white image was projected.

7. Watch the oscilloscope and notice the square waveform

8. Use the “” and “” key to increment or decrement the color wheel delay value

9. No matter the waveform is square or not, let the waveform was lagged first

Lag Exact

10. Then increment or decrement the value to let the waveform to be square

11. Do not adjust too much, let the signal get ahead, if it happens, go back to step 7 and do

it again.

Ahead

12. Select “Save Setting” at “Factory OSD>Factory>”.

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