BenQ PB8220 - XGA DLP Projector User manual

PB8220
SERVICE MANUAL
CONTENT
Chapter 1：Engineering Specification 1
1. Appendix A Optical Measurement 5
2. Appendix B Design Verification Test Procedure 8
3. AppendixC DMDImageQuality 10
4. Appendix D Electrical Specification 14
5. Appendix E Power Supply Specification 20
Chapter 2：SparePartsList 21
Chapter 3：Product description and operation 23
1. Shipping Content 23
2. Product Description 24
3. Remote Control Description 26
4.Installation 28
5.Operation 31
6.PackingDescription 37
7.AppearanceDescription 39
8. Lamp Replacement 42
9. Shutdown 45
10. RS232 Codes 46
Chapter 4：CircuitOperationTheory 49
Chapter 5：AlignmentProcedure 61
Chapter 6：Trouble Shooting 80
Chapter 7：Schematics and Assy drawing 92

Chapter 1 Engineering Specification
1.0 Optical Performance Tested under 60” (diagonal) image size unless other
specified. Measurement Details refer to Appendix A.
1.1 ANSI Brightness 1600 Lumens (Minimum)
1.2 Brightness Uniformity 54% (Minimum)
1.3 Contrast Ratio
1.3.1 ANSI Contrast 130:1 (Minimum)
1.3.2 FOFO Contrast 800:1 (Minimum)
1.4 Light Leakage
1.4.1 Light Leakage in Active Area <2 lux within 60” (diagonal) image size
1.4.2 Light Leakage out of Active
Area
<2 lux between of 60” (diagonal) image size and 80”
(diagonal) area
1.5 Color X y
1.5.1 White .305±.040 .325±.040
1.5.4 Red .650±.040 .335±.040
1.5.5 Green .345±.040 .515±.040
1.5.6 Blue .137±.040 .070±.040
1.6 Color Uniformity X y
1.6.1 White < .04 < .04
1.6.2 Red < .04 < .04
1.6.3 Green < .04 < .04
1.6.4 Blue < .04 < .04
2.0 Image Quality
2.1 Throw Ratio 60” ±5% Diagonal at 2m
2.2 Zoom Ratio 1.2:1
2.3 Distortion
2.3.1 Keystone Distortion <1.0%
2.3.2 Vertical TV Distortion <1.0%
2.4 Projection Offset 120% ±5%
2.5 Focus Range 1.5~8m
2.6 Focus 2m
Test Pattern: X pattern
Observation: 2m from observer to screen
Criteria: letter visible all over screen
(Clear level specified by limit sample)
Focus condition: uniformly focused by observer
1.5m and 8m
Criteria: letter visible at center of screen
1

2.7 Lateral Color <2/3 Pixel
2.8 DMD Image Quality See Appendix D
3.0 Mechanical Specification
3.1 Dimensions Follow C109
3.2 Weight 3.2 kg
3.3 Security Slot Kensington compatible slot 150N break away force
3.5 Lens Cover Detached Lens Cover
3.6 Feet Adjustable rear foot
4.0 Packaging Detail refer to C309 (Packing Description)
4.1 Outside Dimensions 460 x 455 x 292mm (L x W x H)
4.2 Weight 7.1 Kg (Including Accessories, Projector)
4.3 Palletization 20 by Air; 728 / 40’ container, or 336/20’ container by sea
5.0 Thermal Specification Maximum temperature 10°~ 40°C
Metal Plastic5.1 Handles, knobs, grips, etc. and surface
Held or touched for short periods only
60°C 85°C
(Bottom Surface) (55°C) (70°C)
Metal Plastic5.2 External surface or equipment which
may be touched
70°C 95°C
5.3 Exhaust Air 80°C
6.0 Environmental
Operating 10-40°C, without condensation 6.1 Temperature
Storage -10 - 60°C, without condensation
Operating 10 - 90%RH, without condensation6.2 Humidity
Storage 10 - 90%RH, without condensation
Typical Normal Mode: 34dBA at @ 25°C
ECO Mode: 32dBA at @ 25°C
6.3 Audible Noise Level
Maximum Normal Mode: 35dBA at @ 25°C
ECO Mode: 33dBA at @ 25°C
6.4 Altitude 0 – 6000 feet above sea level
6.5 Shock Non-operating, 20 ms /50 G
6.6 Drop 76cm, 1 orientation, 6 primary surfaces, 2 selected
corners, and 3 selected edges, total 11 drops
Random 0.015G2/Hz, 5 ~100 Hz6.7 Vibration
Sine 0.5G, 5 ~200Hz
7.0 Regulatory Safety UL Approved (UL 1950, CSA950),
TUV-GS, CCC, CB Report, R-Mark
2

EMC FCC Class B requirements, BSMI,
VCCI, C-Tick
Directive 73/23/EEC;CE Marks
Directive 89/336/EEC;
ESD Refer to Appendix X
8.0 Reliability
8.1 MTBF 20000 hours except for DMD chip, Color wheel, Lamp
and Fan
8.2 Lamp Lifetime 2000 hours (50% brightness maintenance)
9.0 Power Requirements Adhere to Appendix F
9.1 Power Supply (Normal) VAC 100 – 240 Auto-switch (50/60Hz), 3 Wire Grounded
Typical 340W9.2 Power Consumption
Standby 15W
9.3 Power Connector IEC-06
10.0 Panel Specification
10.1 Type Single Chip 0.7” XGA 12°tilt DDR DMD
10.2 Pixels H: 1024 X V: 768
10.3 Color Depth 24 Bits (16770000 colors)
11.0 Compatibility
PC Compatible 640X400 Æ1024X768, compressed
1280X1024; Composite-Sync; Sync-on-Green; Interlace
Mode (8514A);
Detailed Support Timing Specification refer to Appendix
E.1
H-Sync 24 ~ 88
KHz
V-Sync 48 ~ 100 Hz
11.1 PC
PC Frequency
Limitation
Pixel Clock 140 MHz
11.2 Video NTSC/ NTSC4.43/ PAL (Including PAL-M, PAL-N)/
SECAM/ PAL60/
11.3 YPbPrNTSC (480i)/ 480p/ PAL (625i)/ 720p, HDTV (1080i/
1035i)
11.4 DDC DDC 2B
12.0 Image Interface Adhere to Appendix E.2
12.1 Analog RGB Input 15 pin D-Sub (Female) x 1
RGB: Video amplitude 1.0 Vp-p : Impedance 75Ω
HD/VD/CS: TTL Level
12.2 Video Input RCA jack (Yellow)
Video amplitude 1.0 Vp-p : Impedance 75Ω
3

12.3 S-Video Input 4 pin Mini-Din (Female)
Y: Luminance amplitude 1.0 Vp-p : Impedance 75Ω
C: Chroma amplitude 0.268 Vp-p : Impedance 75Ω
12.4 YPbPr Input RCA jack (Green/Red/Blue) x 1
Y: Luminance amplitude 1.0 Vp-p: Impedance 75Ω
PbPr/CbCr: Chroma amplitude 0.7 Vp-p : Impedance 75Ω
12.5 Analog RGB Output 15 pin D-Sub (Female) x 1
RGB: Video amplitude 1.0Vp-p : Impedance 75Ω
HD/VD/CS: TTL Level
13.0 Control Interface
13.1 IR Receiver IR Receiver x2 (Front, Rear)
13.2 Serial Connector 8 pin Mini-Din (Female) x 1
RS-232 Standard
13.3 USB Connector B type USB terminal for mouse port
14.0 User Interface Adhere to Appendix E.3
14.1 Operator Keypad Refer to C001
14.2 Indicators Refer to C001
14.3 Remote Control Refer to C001
14.4 On Screen Display Refer to C001
14.5 Electric Keystone ±7°(except 1080i/1035i)
15.0 Audio
15.1 PC Audio Input Φ3.5mm stereo mini jack
350m Vrms 10 KΩor more
15.2 RCA Audio Input RCA jack (White/Red) X 1
350m Vrms 10 KΩor more
15.3 Speaker 4Ω3W x 1
4

Appendix A Optical Measurement
1.Scope:
This document describes critical optical related test definitions and Instructions for data or video
projectors. The other general terminologies are specified in ANSI IT7.228-1997.
2.General Requirements
1. The unit under test should be allowed to stabilize without further
adjustment for a minimum of 5 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 lux 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
3.Practical Requirements
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. ANSI BRIGHTNESS
ANSI Lumens = (L1+L2+L3+L4+L5+L6+L7+L8+L9)/9 (lux) x A(m^2)
A (Area) = W * H (m^2)
W: width of projected image (m)
H: height of projected image (m)
L11
L13 L12
L10
L1 L2
L4
L7
L5
L8 L9
L3
L6
Note: L10, L11, L12, L13 are located at 10% of the distance from corner itself to L5
5

A2. BRIGHTNESS UNIFORMITY
Brightness Uniformity = Minimum (L10,L11,L12,L13)/ Average (L1,L2,L3,L4,L5,L6,L7,L8,L9)
A3. JBMA UNIFORMITY
JBMA Uniformity = Average (L1,L3,L7,L9)/ L5
A4. ANSI CONTRAST
ANSI Contrast = Average lux value of the white rectangles/Average lux value of the black
rectangles
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.
A5. FOFO CONTRAST
FOFO Contrast = Lux value at the center of a solid white screen/the lux value at the center of a
solid black screen
A6. JBMA CONTRAST
JBMA Contrast = Average (L1,L2,L3,L4,L5,L6,L7,L8,L9) under solid white / Average
(L1,L2,L3,L4,L5,L6,L7,L8,L9) under solid black
A7. LIGHT LEAKAGE
Leakage = The maximum light leakage under a solid black pattern in or outside of the projected
image
A8. IMAGE DISTORTION
Keystone = (W2-W1)/ (W1+W2) x 100%
Vertical TV dist = (H1+H2-2xH3)/2H2 x100%
Horizontal TV dist = (W1+W2-2xW3)/2W1 x100%
W1: image width at image bottom
W2: image width at image top
W3: image width at the half image height.
H1: image height at image left
H2: image height at image right
H3: image height at half image
Note:
1. Keystone and Vertical TV Distortion are recommended for Front Projection Display
2. Vertical and Horizontal TV Distortion are recommended for Rear Projection Display
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A9. THROW RATIO
Throw ratio = projection distance / the width of the projected image
A10. ZOOM RATIO
Zoom ratio = maximum / minimum image diagonal size at a fixed projection distance
A11. FOCUS RANGE
The minimum/maximum focus distance is the minimum/maximum projection distance (The
distance between the outermost element of projection lens and screen), expressed in meter, at
which the image is still at its acceptable focus level.(acceptable focus level is specified by
FOCUS LIMIT SAMPLE approved by customer)
A12. COLOR
Color is expressed as (x, y) in 1931CIE chromaticity values
Note: Color is measured at the center of the screen that is entirely the measured color under
default brightness and contrast settings.
A13. ANSI COLOR
ANSI Color is expressed as (u, v) in 1976 CIE chromaticity values
Note: Color is measured at the center of the screen that is entirely the measured color under
default brightness and contrast settings.
A14. COLOR UNIFORMITY
Color Uniformity is the maximum color difference (△x, △y) between any two points out of
L1~L13
A15. ANSI COLOR UNIFORMITY
ANSI Color Uniformity: △u’v’= [(u’1-u’0)^2+(v’1-v’0)^2]^1/2
(u’0,v’0): the average color of L1~L13
(u’1,v’1): the spot with maximum deviation from (u’0,v’0)
A16. PROJECTION OFFSET
Projection Offset= Image height above projection lens optical axis / Total image height x 100%
Note: Optical engine should be kept horizontal attitude
7

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, which is recommended for product assurance testing reference.
2. Test Summary
Dynamic Testing Specification
Package Drop 76cm, 1 drop per orientation, all 6 primary surfaces, plus a minimum o
f
two selected corners, and three selected edges, total of 11 drops
Package Vibration 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
Shock,
non-operating
50g, 20ms half-sine, all primary axis, 1 shock per orientation, total of 3
shocks
Security Lock 150N break away force
Atmospherics
Temperature/Humi
dity, operating
0~35oC/10~90RH, 48hr
Temperature/Humi
dity, non-operating
-10~60oC/10~90RH, 48hr
Altitude, operation 0~6,000ft @30oC, 2hr
8

3.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, Non-operating ESD
Shock Altitude, Operating EMI-Radiated
EMI-Conducted
EMI-Susceptibility
4. Noise Testing Standard
(1) Desk high is 75 cm
(2) Projector have to closed to the edge of
desk
(3) Noise meter high is 150 cm & title 30
degree
(4) The distance between noise meter and
projector is 100 cm
(5) Measured four surfaces and calculated
the noise value by log average.
(6) We have designed excel files to calculate
this value. (Avg_Noise.xls)
9