BenQ MP512 - SVGA DLP Projector User manual

1
Applicable Country & Regions:
All Regions
Product Service Manual – Level 2
Service Manual for BenQ:
Projector/MP512
<9H.Y1277.000>
Version: 00a
Date:2008/06/12
Notice:
For RO to input specific “Legal Requirement” in specific NS regarding to responsibility and liability
statements.
Please check BenQ’s eSupport web site, http://esupport.benq.com, to ensure that you have the most
recent version of this manual.
First Edition (Jun 2008)
© Copyright BenQ Corporation 2007. All Right Reserved.

2
Content Index
Abbreviations & Acronyms………………………………………………………….…...3
About This Manual………………………………………………………………….…...4
Trademark…………………………………………………………………………...4
Introduction……………………………………………………………………………...4
Important Service Information………………………………………….……….....4
RoHS (2002/95/EC) Requirements – Applied to all countries require RoHS………4
Safety Notice............................................................................................................…...5
Compliance Statement……………………………………………………….……..5
General Descriptions…………………………………………………………………….5
Related Service Information……………………………………………………………..5
Service Web Site…………………………………………………………………….5
Product Overview………………………………………………………………………..6
Specifications……………………………………………………………………….6
Packing……………………………………………………………………………17
Customer Acceptance……………………………………………………………..23
Level 1 Cosmetic / Appearance / Alignment Service……..……………………..………26
Operational Inspection Criteria.................................................................................26
Software/Firmware Upgrade Process…………………………………………......30
Adjustment / Alignment Procedure………………………………………………36
Level 2 Circuit Board and Standard Parts Replacement…..…………………………….43
Product Exploded View……….………………………………………………..…43
Module 1 – Total Exploded View...……..………..……….…………………43
Module 2 – ASSY UPPER CASE……………………………………………45
Module 3 – ASSY LOWER CASE………………..……………………….....46
Module 4 – ASSY FRONT CASE…….……………………………...……….47
Product Disassembly/Assembly…………………..…………………………48
Module Assembly Key Point – Optical Engine...……..…………………53
Module Assembly Key Point – Mechanical…………..…….……………70
Block Diagram……………………………………………….…………………...80
Troubleshooting………………………………………………………………......82
Appendix 1 – Screw List / Torque…………………….…..…………………………….90
Appendix 2 – Code List: IR / RS232 / DDC Table………...…………………..………...92

3
Abbreviations & Acronyms
A
A/D
A
nalog to Digital
B
BenQ BenQ Corporation
D
DLP Digital Light Processing / Texas Instruments®
DMD Digital Micro mirror Device
DVI Digital Video Interface
DVI-I Digital Video Interface-Integrated
P
POM Pond of Mirrors
R
RS232 Interface Between Data terminal Equipment and
Data Communications Equipment Employing
Serial Binary Data Interchange
S
SVGA Super Video Graphics Array, A screen resolution
of 800 x 600 pixels.
SXGA Super XGA. A screen resolution of 1280x1024
pixels.
V
VGA
V
ideo Graphics Array. A screen resolution of
640x480 pixels.
X
XGA
A
screen resolution of 1024x768 pixels.

4
About This Manual
This manual contains information about maintenance and service of BenQ products. Use this
manual to perform diagnostics tests, troubleshoot problems, and align the BenQ product.
Important
Only trained service personnel who are familiar with this BenQ Product shall perform
service or maintenance to it. Before performing any maintenance or service, the
engineer MUST read the “Important Safety Information”
Trademark
The following terms are trademarks of BenQ Corporation:
BenQ
Other companies, products, or service names may be the trademarks of their respective companies.
Introduction
This section contains general service information, please read through carefully. It should be stored
for easy access place.
Important Service Information
RoHS (2002/95/EC) Requirements – Applied to all countries require RoHS.
The RoHS (Restriction of Hazardous Substance in Electrical and Electronic Equipment Directive) is a
legal requirement by EU (European Union) for the global electronics industry which sold in EU and
some counties also require this requirement. Any electrical and electronics products launched in
the market after June 2006 should meet this RoHS requirements. Products launched in the market
before June 2006 are not required to compliant with RoHS parts. If the original parts are not RoHS
complaints, the replacement parts can be non ROHS complaints, but if the original parts are RoHS
compliant, the replacement parts MUST be RoHS complaints.
If the product service or maintenance require replacing any parts, please confirming the RoHS
requirement before replace them.

5
Safety Notice
1Make sure your working environment is dry and clean, and meets all government safety
requirements.
2Ensure that other persons are safe while you are servicing the product.
3DO NOT perform any action that may cause a hazard to the customer or make the product
unsafe.
4Use proper safety devices to ensure your personal safety.
5Always use approved tools and test equipment for servicing.
6Never assume the product’s power is disconnected from the mains power supply. Check that it is
disconnected before opening the product’s cabinet.
7Modules containing electrical components are sensitive to electrostatic discharge (ESD). Follow
ESD safety procedures while handling these parts.
8Some products contain more than one battery. Do not disassemble any battery, or expose it to
high temperatures such as throwing into fire or it may explode.
9Refer to government requirements for battery recycling or disposal.
Compliance Statement
Caution: This Optical Storage Product contains a Laser device. Refer to the product specifications
and your local Laser Safety Compliance Requirements.
General Descriptions
This Service Manual contains general information. There are 2 levels of service:
Level 1: Cosmetic / Appearance / Alignment Service
Level 2: Circuit Board or Standard Parts Replacement
Related Service Information
Service Web Site
BenQ Global Service Website: http://support.benq.com/front/benqmain.asp
eSupport Website: http://esupport.benq.com/v2

6
Product Overview
Specifications:
1.0 Optical Performance
2.0 Image Quality
3.0 Mechanical Specification
4.0 Packaging
5.0 Thermal Specification
6.0 Environmental
7.0 Regulatory
8.0 Reliability
9.0 Power Requirements
10.0 Panel Specification
11.0 Compatibility
12.0 Image Interface
13.0 Control Interface
14.0 User Interface

7
1.0 Optical Performance Tested under 60” (diagonal) ima
g
e size with Wide projection lens
position unless other specified.
1.1 ANSI Brightness Minimum 1760 Lumens
1.2 Brightness Uniformity
1.2.1 ANSI Uniformity Minimum 55%
1.2.2 JBMA Uniformit
y
Minimum 70%
1.2.3 Uppe
r
-Down
unbalance 0.5~2
1.2.4 Left-Right
unbalance 0.6~1.67
1.3 Contrast Ratio
1.3.1 ANSI Contrast Minimum 150:1
1.3.2 FOFO Contrast Minimum 1200:1
1.3.3 Dynamic C/
R
Minimum 1450:1
1.4 Light Leakage
1.4.1 Light Leakage in Active
Area
<0.5 lux compared to center point within 60” (Diagonal at 2.4m)
image size. Note: This light leakage in Active area is only
described as the spot light with obvious shape. It is not included
the uniformity difference of the projector for black pattern.
1.4.2 Light Leakage out of
Active Area
(Except DMD Defect)
<0.65 lux with 50”~80“(Diagonal at 2m) image size
1.5 Color Reference meter: BenQ YM5A/Measurement Center Integral
sphere
X Y
1.5.1 White 0.313±0.04 0.350±0.04
1.5.2 Red 0.640±0.04 0.345±0.04
1.5.3 Green 0.345±0.04 0.533±0.04
1.5.4 Blue 0.144±0.04 0.075±0.04
1.6 Color Uniformity X Y
1.6.1 White 0.040 0.040
1.6.2 Red 0.040 0.040
1.6.3 Green 0.040 0.040
1.6.4 Blue 0.040 0.040
1.7 Color Gamut typical 55% compare NTSC
2.0 Image Quality
2.1 Throw Ratio 50”±5% Diagonal at 2m
2.2 Zoom Ratio (tolerance
applied) 1(Fixed)
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
2.5.1 Visible Range 1~8 m
2.5.2 Clearly Focus Range 1.5~6 m(Spec. defined as item 2.6)
2.6 Focus
2.6.1 区Pattern (1)If pattern can be uniformly focused, pass!
(2)If not, check 2.6.2
2.6.2 Defocus and Flare Defocus: R<=3.0; G<=3.0; B<=3.0 pixel
Flare: R<=4.0; G<=4.0; B<=4.0 pixel

8
Slight flare is not counted as flare.
2.6.3 Focus unbalance Adjust focus from near to far until one corner clear, difference less
than 50 cm
2.7 Lateral Color
Center of
49”diagonal area All other area
R
-G <2/3 <1
G-B <2/3 <1
R
-B <1 <1
2.8 Image Quality
2.8.1 DMD Image Qualit
y
2.8.2 Image Imperfection
2.8.3 Image Shadow or Blur
setups
1. 50” (Diagonal at 2m) image size.
2. Default preset mode “ Dynamic”
3. Full white pattern to check the image.
Let the projector on the desk (don’t move it up/down or left/
right) and just inspect the pattern.
4. Compare to the limit sample of OOB. (Right side blur sample
→MP611 S/N: 245747-00013; Bottom side blur sample →
MP611 S/N: PDM8601819SU0) If blur or shadow worse than
OOB, than NG
3.0 Mechanical Specification
3.1 Dimensions 255 x 214 x 90 mm (L x W x H)
3.2 Weight <2500g
3.3 Security Slot Kensington compatible slot 150N break away force
3.5 Lens Cover Lens Cover (Refer to C109)
3.6 Feet Fast adjustable foot in front, Adjustable foot and Fixed foot in
rear. foot Tilt:0-6∘,right/left: +2.2∘/-0.5∘
4.0 Packaging Detail refer to C309 (Packing Description)
4.1 Outside Dimensions 325 x 165 x 297mm (L x W x H)
4.2 Weight <3700g
4.3 Transportation
40 feet container 3528 sets, 20 feet container 1708 sets
By air(A pallet ) 48 sets (C pallet ) 56 sets
(B pallet ) 40 sets
5.0 Thermal Specification Mechanical component temperature at ambience 0~40℃
5.1 Surface held or touched
for short periods
Normal surface:
Metal < 60°C; Plastic<85°C
Bottom surface: @ 25°C
Metal < 55°C; Plastic<70°C
5.2 Surface which may be
touched
Metal Plastic
<70°C <95°C
5.3 Exhaust Air <95°C
6.0 Environmental
6.1 Temperature Operating 0~40°C, without condensation
Storage -20~60°C, without condensation
6.2 Humidity Operatin
g
10~90%RH, without condensation
Storage 10~90%RH, without condensation
6.3 Audible Noise Level Typical Normal mode: 31dBA @ 25°C
Eco mode: 26dBA @ 25°C

9
Maximum Normal mode: 33dBA @ 25°C
Eco mode: 28dBA @ 25°C
6.4 Altitude
Operating:
Without high altitude mode 0°C~35°C @ 0~1499m above sea
level
With high altitude mode 0°C~30°C @ 1500~3000m above sea
level
Non-operating:
30℃@0~12,200m above sea level
7.0 Regulatory
Safety cTUVus, TUV-GS, CCC, CB Report, PSE, GOST-R,
PSB, SASO, eK, TUV-Argentina, CE, NOM
EMC FCC Class B requirements, C-Tick, VCCI, CE
ESD Qisda ESD Specification
8.0 Reliability
8.1 MTBF 40000 hours except DMD chip, Color wheel, Lamp, Fan and
Ballast
8.2 Lamp Lifetime Normal : 3000 hours (50% brightness maintenance)
Eco: 4000 hours
9.0 Power Requirements Adhere to Appendix B
9.1 Power Supply (Normal) VAC 100
–
240 (50/60Hz),
9.2 Power consumption Typical
280W Max.
Standb
y
5W Max.
9.3 Power Connector IEC-06
10.0 Panel Specification
10.1 Type 0.55” SVGA LVDS Type-X DMD
10.2 Pixels H: 800 X V: 600
10.3 Color Depth 24 Bits (16770000 colors)
11.0 Compatibility Appendix
A
11.1 PC PC Compatible 640X480 Æ1024X768, compressed 1280X1024;
Composite-Sync; Sync-on-Green; Interlace Mode (8514A);
11.2 Video NTSC/ NTSC4.43/ PAL (Including PAL-M, PAL-N)/ SECAM/
PAL60/
11.3 YpbPr NTSC (480i)/ 480p/ PAL (576i)/ 576p, HDTV (720p/ 1080i)
11.4 DDC EDID 1.3
12.0 Image Interface Adhere to Appendix
A
12.1 Analog RGB Input
15 pin D-Sub (Female) x 1
G(Y): Video amplitude 0.7/1.0 Vp-p : Impedance 75
RB(CbCr): Video amplitude 0.7 Vp-p : Impedance 75
HD/VD/CS: TTL Level
12.2 Video Input RCA jack (Yellow)
Video amplitude 1.0 V
p
-
p
: Impedance 75Ω
12.3 S-Video Input
4 pin Mini-Din (Female)
Y: Luminance amplitude 1.0 Vp-p : Impedance 75Ω
C: Chroma amplitude 0.286 V
p
-
p
: Impedance 75Ω
12.4 YPbPr Input 15 pin D-Sub (Female) x 1
Y: Luminance amplitude 1.0 Vp-p: Impedance 75Ω
PbPr/CbCr: Chroma amplitude 0.7 V
p
-
p
: Impedance 75Ω

10
12.5 Analog RGB Output 15 pin D-Sub (Female) x 1
G(Y): Video amplitude 0.7/1.0 Vp-p : Impedance 75
RB(CbCr): Video amplitude 0.7 Vp-p : Impedance 75
HD/VD/CS: TTL Level
13.0 Control Interface
13.1 IR Receiver IR Receiver x1 (Front) Angle: ±30°Distance 0~8m
13.2 Serial Connector RS232 9pin, command table adhere to Appendix A
14.0 User Interface Adhere to Appendix A
14.1 Operator Keypad
10 Keys:
Power ; Source ; Auto ; Blank ; Menu/Exit ; Left/Q?; Right/Panel
Key lock ; Up(Keystone+) ; Down(Keystone-) ; Mode
14.2 Indicators 3 LEDs:
Power On/Off Status; Lamp Status; Temperature Status
14.3 Electric Keystone
vertical keystone and adjustable range ±25°