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°

11
Appendix A - Electrical Specification
1. Timing Table
The PC timing is as following:
Resolution Mode
Refresh rate
(Hz)
H-frequency
(kHz)
Clock
(MHz)
720 x 400 720x400_70 70.087 31.469 28.3221
640 x 480
VGA_60 59.940 31.469 25.175
VGA_72 72.809 37.861 31.500
VGA_75 75.000 37.500 31.500
VGA_85 85.008 43.269 36.000
800 x 600
SVGA_60 60.317 37.879 40.000
SVGA_72 72.188 48.077 50.000
SVGA_75 75.000 46.875 49.500
SVGA_85 85.061 53.674 56.250
1024 x 768
XGA_60 60.004 48.363 65.000
XGA_70 70.069 56.476 75.000
XGA_75 75.029 60.023 78.750
XGA_85 84.997 68.667 94.500
1280 x 1024 SXGA3_60 60.020 63.981 108.000
1280 x 800 SXGA_60 59.81 49.702 83.5
1280 x 960 1280 x 960_60 60.000 60.000 108
640x480@67Hz MAC13 66.667 35.000 30.240
832x624@75 MAC16 74.546 49.722 57.280
1024x768@75Hz MAC19 75.020 60.241 80.000
1152x870@75Hz MAC21 75.06 68.68 100.00
YPbPr support timing is as following:
Signal format fh(kHz) fv(Hz)
480i(525i)@60Hz 15.73 59.94
480p(525p)@60Hz 31.47 59.94
576i(625i)@50Hz 15.63 50.00
576p(625p)@50Hz 31.25 50.00
720p(750p)@60Hz 45.00 60.00
720p(750p)@50Hz 37.50 50.00
1080i(1125i)@60Hz 33.75 60.00
1080i(1125i)@50Hz 28.13 50.00
Video, S-Video support timing is as following:
Video mode fh(kHz) fv(Hz) fsc(MHz)
NTSC 15.73 60 3.58
PAL 15.63 50 4.43
SECAM 15.63 50 4.25 or 4.41
PAL-M 15.73 60 3.58
PAL-N 15.63 50 3.58
PAL-60 15.73 60 4.43
NTSC4.43 15.73 60 4.43

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2. Characteristics of inputs/outputs
Signal Parameter Min Type Max
RDATA
GDATA
BDATA
Impedance 75 Ohm
Amplitude 0.7
V
olts peak-to-peak
Black pedestal 0
V
olts
Pixel Clock 110 M Hz
GDATA_SOG Impedance 75 Ohm
Amplitude 1
V
olts peak-to-peak
Video amplitude 0.7
V
olts peak-to-peak
Sync amplitude 0.3
V
olts peak-to-peak
Black pedestal 0
V
olts
Pixel Clock 110 M Hz
HDATA Impedance 1 K ohm
Amplitude, low level 0 0.8 volt
Amplitude, high level 2.5 5
V
olt
Frequenc
y
31 82 K Hz
VDATA Impedance 1 K ohm
Amplitude, low level 0 0.8 volt
Amplitude, high level 2.5 5
V
olt
Frequenc
y
48 85 Hz
SDADATA Amplitude, low level 0 0.8 volt
Amplitude, high level 2.5 5
V
olt
SCLDATA Amplitude, low level 0 0.8 volt
Amplitude, high level 2.5 5
V
olt
RXD Amplitude -25 25
V
olt
TXD Amplitude -25 25
V
olt
CVBS
Luminance
Amplitude, total (video+ sync)
1
V
olts peak to peak
Amplitude, video 0.7
V
olts peak to peak
Amplitude, sync 0.3
V
olts peak to peak
Impedance 75 ohm
CVBS Chroma Amplitude 300 m Volts peak to peak
Impedance 75 ohm
3. Electrical Interface Character
Interface Definition
z15 pin definition of the mini D-sub male for DDC2B protocol
15
610
11 15
Pin Definition Pin Definition Pin
Definition Pin
Definition
1 Red video
(Pr)
2 Green Video
(Y)
3 Blue Video
(Pb)
4 NC
5 NC 6 Red Video Return 7 Green Video
Return
8 Blue Video
Return
9 NC 10
Sync. Return 11
Monitor ID
bit 0
12 Bi-directional
data (SDA)
13 Horizontal Sync 14
V
ertical Sync 15 Data clock
(SCL)

13
zVideo Input
zS-Video input
Pin Description
1 GND
2
GND
3 Luminance
4 Chroma
zControl Port
Pin Definition
1 Composite video
input
Pin Description Pin Description
1 NC 2 R
X
3 T
X
4 NC
5 GND 6 NC
7 RTSZ 8 CTSZ
9 NC
2
4
1
3
Composite input
1

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Local Keyboard Description (Detailed description refer to SW Specification)
Key Name Detailed Description
Power Use this button to turn your Data Projector on and off (standby mode).
Source To select input sources as Computer, Video, S-Video, YpbPr
Auto Toggle auto-tracking image function
Blank Press “Blank” key first to blank the screen
Mode/Enter (1) When there is no OSD menu, this bottom is Mode hot key; user would press
this bottom to choose one of preset modes
(2) When there is confirm message, user could press this key to confirm
Menu/Exit Press this key to open/exit the OSD menu
Right/Panel Key
Lock
(1) When user press the bottom once, it will enter “Panel Key Lock” settin
g
(2) When panel key is locked, user could press this key for 3 seconds to release
Panel Key Lock
(3) When there is OSD menu, user can press this key to move to right item
Left/Q? (1) When user presses the bottom once, it would show main "Information"
menu; and then user could press ▲▼ to choose questions group.
(2) If there is OSD menu, user can press this key to move to the left item
Up (1) Move item bar. (2) Move to page level. (3) Keystone+.
Down (1) Move item bar. (2) Move to page level. (3) Keystone-.
Remote Control Keys Description (Detailed description refer to SW Specification)
I
R
-Key Name Detailed Description
Power Use this button to turn your Data Projector on and off (standby mode).
Source To select input sources as Computer, YPbPr , Video, S-Video
Menu/Exit (1) OSD pop-up. (2) Move next item
4/ Panel Key Lock (1) When user press the bottom once, it will enter “Panel Key Lock” settin
g
(2) When panel key is locked, user could press this key for 3 seconds to release
Panel Key Lock
(3) When there is OSD menu, user can press this key to move to right item
3/ Q? (1) When user presses the bottom once, it would show main "Information"
menu; and then user could press ▲▼ to choose questions group.
(2) If there is OSD menu, user can press this key to move to the left item
5(1) Move item bar. (2) Move to page level. (3) Keystone+.
6(1) Move item bar. (2) Move to page level. (3) Keystone-.
Auto Toggle auto-tracking image function
Mode/Enter (1) When there is no OSD menu, this bottom is Mode hot key; user would press
this bottom to choose one of preset modes
(2) When there is confirm message, user could press this key to confirm
Freeze This button will freeze a picture. Press again to resume motion.
Blank Press “Blank” key first to blank the screen.
Timer Call out the “Presentation Timer” setup OSD and user can set timer to remind
presenter.
Digital Zoom in By press this key, the center of picture can be magnified gradually.
Digital Zoom out By press this key, the size of the magnified image will be reduced.
External Status indicator
LED Name Detailed Description
Power LED Display the power on/off sequence status
Lamp Status LED Display the Lamp status (Lamp fail, Lamp spoil etc.)
Temperature Status LED Display the Thermal status (Fan Fail, Over Temperature, etc.)

15
4. Functionality
The Following functionality will be supported: (Detailed description refer to SW Specification)
Functionality Data (Computer)
V
ideo/S-
V
ideo YPbPr/YCbCr
Volume NO NO NO
Mute NO NO NO
Preset Mode
Y
ES
Y
ES YES
Brightness
Y
ES
Y
ES YES
Contrast
Y
ES
Y
ES YES
Color NO
Y
ES YES
Tint NO
Y
ES NO
Sharpness NO
Y
ES YES
Color Temp
Y
ES
Y
ES YES
H. Position
Y
ES NO NO
V. Position
Y
ES NO NO
H. Phase
Y
ES NO NO
H. Size
Y
ES NO NO
Keystone
Y
ES
Y
ES YES
Language
Y
ES
Y
ES YES
Auto
Y
ES NO NO
Image Ratio
Y
ES
Y
ES YES
Auto Off
Y
ES
Y
ES YES
Mirror
Y
ES
Y
ES YES
Source
Y
ES
Y
ES YES
Freeze
Y
ES
Y
ES YES
Blank
Y
ES
Y
ES YES
Lamp Reset
Y
ES
Y
ES YES
OSD Timer
Y
ES
Y
ES YES
Source Scan
Y
ES
Y
ES YES
Keystone Hold
Y
ES
Y
ES YES
Mirror Hold
Y
ES
Y
ES YES
Blank Time
Y
ES
Y
ES YES
Information
Y
ES
Y
ES YES
Reset
Y
ES
Y
ES YES
External Message indicator (Detailed description refer to SW Specification)
Message Occasion
PC/Composite Video /S-Video /Analog YPbPr
Searching The system does not detect the signal
Out of range The signal is over the specification
Order replacement lamp
Lamp > 3000 Hours Lamp Hour ≧3000 hours
Replace lamp soon
Lamp > 3950 Hours Lamp Hour ≧3950 hours
Replace lamp Now
Lamp > 4000 Hours
Lamp usage time exceeded
Lamp Hour ≧4000 hours.
The warning message will be displayed when the
projector is turned on (last for 30
Seconds)
Lamp-usage time exceeded
Replace lamp (refer to user's manual)
Then reset lamp timer.
Then the projector will show left message (last
for 40 seconds)

16
Appendix B - Power Supply Specification
1. Input Power Specification
Specification Description
Input Voltage Range The unit shall meet all the operating requirements with the range 90
~ 264 VAC
Frequency Range The unit shall meet all the operating requirements with an input
frequency range 50 Hz ~ 60 Hz
Power Consumption Normal operation: 280W (Max)
standby mode: < 5W
Regulation Efficiency 80 % (typical) measuring at 115Vac and full load
2. Output Power Requirement
The power supply can provide DC output as below：
NO. Voltage Regulation Load Current Range
Ripple & Noise
1 +12 V ±10 % 0.15 A ~ 2.5 A 300 mV
3. Lamp Power specifications
Specification Description
Applicable Lamp 189W, AC operation
Starting pulse from Ignitor

17
Packing
【NOTE】The updated Service BOM is on SPO system. Please check it to order service parts.

18
CTN LBL PRINTING (For BQA):
CTN LBL PRINTING (For BQE):

19
CTN LBL PRINTING (For BQP):

20
CTN LBL PRINTING (For BQC)