BenQ SX930 User manual

1
Applicable Country & Regions:
All Regions
Product Service Manual – Level 2
Service Manual for BenQ:
Projector/SX930
<9H.JEG77.15X>
Version: 00a
Date:2015/09/22
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 (Sep., 2015)
© Copyright BenQ Corporation 2015 All Right Reserved.

2
Content Index
1. Abbreviations & Acronyms ............................................................. 4
2. About This Manual ............................................................................ 5
2.1 Trademark .................................................................................................................... 5
2.2 Introduction ................................................................................................................. 5
2.3 Important Service Information ..................................................................................... 5
2.4 Safety Notice ............................................................................................................... 6
2.5 Compliance Statement ................................................................................................. 6
2.6 General Descriptions ................................................................................................... 6
2.7 Related Service Information ......................................................................................... 6
3. Product Overview ............................................................................ 7
3.1 Specification Overview ................................................................................................ 8
3.2 Packing ....................................................................................................................... 28
3.3 Customer Acceptance................................................................................................ 35
4. Level 1 Cosmetic / Appearance / Alignment Service .............. 38
4.1 Cosmetic / Appearance Inspection Criteria................................................................ 38
4.2 OPERATIONAL INSPECTION CRITERIA ................................................................. 41
4.3 Software/Firmware Upgrade Process ......................................................................... 47
4.4 Factory Menu ............................................................................................................. 71
4.5 RS-232 connection ..................................................................................................... 76
4.6 Adjustment / Alignment Procedure............................................................................. 80
5. Level 2 Circuit Board and Standard Parts Replacement ....... 84
5.1 Product Exploded View .............................................................................................. 84
Module 2 – ASSY UPPER CASE ....................................................................................... 86
5.2 Product Disassembly / Assembly ................................................................................ 88
5.3 Module Assembly Key Point - Optical Engine ........................................................... 103
5.4 Module Assembly Key Point - Mechanical ................................................................. 117
5.5 Block Diagram ......................................................................................................... 133
5.6 Trouble shooting ...................................................................................................... 134
Appendix 2 - Code List: IR / RS232 / DDC Data ........................ 147
Appendix 3 – Ceiling Mount Drawing .......................................... 156
Appendix 4 - Optical Measurement ............................................. 157
Appendix 6 - Design Verification Test Procedure ...................... 168
Appendix 7 - Thermal and Noise Test Procedure ...................... 171

3
Update History
Revision
Chapter
Changes
Date
Rev. 00a
Initial version
2015/9/21

4
1. Abbreviations & Acronyms
A
A/D Analog to Digital
B
BenQ BenQ Corporation
C
C/W Color Wheel
CM Concave Mirror
D
DLP Digital Light Processing / Texas Instruments®
DMD Digital Micro mirror Device
DVI Digital Video Interface
DVI-I Digital Video Interface-Integrated
P
PL Projection Lens
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
Video Graphics Array. A screen resolution of
640x480 pixels.
X
XGA A screen resolution of 1024x768 pixels.

5
2. 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”
2.1 Trademark
The following terms are trademarks of BenQ Corporation:
BenQ
Other companies, products, or service names may be the trademarks of their respective companies.
2.2 Introduction
This section contains general service information, please read through carefully. It should be stored
for easy access place.
2.3 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.

6
2.4 Safety Notice
1 Make sure your working environment is dry and clean, and meets all government safety
requirements.
2 Ensure that other persons are safe while you are servicing the product.
3 DO NOT perform any action that may cause a hazard to the customer or make the product
unsafe.
4 Use proper safety devices to ensure your personal safety.
5 Always use approved tools and test equipment for servicing.
6 Never assume the product’s power is disconnected from the mains power supply. Check that it
is disconnected before opening the product’s cabinet.
7 Modules containing electrical components are sensitive to electrostatic discharge (ESD). Follow
ESD safety procedures while handling these parts.
8 Some 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.
9 Refer to government requirements for battery recycling or disposal.
2.5 Compliance Statement
Caution: This Optical Storage Product contains a Laser device. Refer to the product specifications
and your local Laser Safety Compliance Requirements.
2.6 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
2.7 Related Service Information
Service Web Site
eSupport Website:
BenQer: http://esupport.benq.com/v2
ASP: http://esupport.benq.com/

7
3. Product Overview
The projector consists of DLP projector controller, Lamp controller, Power supply system, and
System cooling controller. The DLP controller captures digital PC data and video data and then
converts them into the DMD display device. The Lamp controller dominates the lamp’s power and
synchronizes its frequency with color display sequence. The Power supply unit controls the AC line
power factor and converts primary voltage to secondary low voltages for digital board. The System
cooling controller drives the airflow to quench the lamp’s heat and electrical component’s heat.
 Specification Overview
 Panel Information
 Projection Lens Specification
 Optical Specification
 Lamp Specification
 Mechanical Specification
 Packaging
 Thermal Specification
 Power Requirements
 Compatibility
 User Interface
 Regulatory
 Reliability
 Other Feature
 Input / Output Connectors
 Input Terminals
 Output Terminals
 Control Terminals and Interface
 Accessories
 Environmental
 Electrical Specification
 Power Supply Specification
 UI Specification

8
3.1 Specification Overview
 Specification Overview
SX930
Version: 02
Item
Specification
1.Panel / Driver IC Information
1.1 Panel Type
0.7"XGA 2xLVDS 14° Type DMD
1.2 Package Type
Type A
1.3 Size
0.7”
1.4 Pixels
1024(H) x 768(V)
1.5 Color Depth
30 Bits (
1.07 Billion Colors
)
1.6 Driver Type
DDP 4421
-
HV
1.7 Panel Pixel Quality
Follow TI spec. (Refer to Appendix
4
)
1.8 Image Imperfection
Follow TI spec. (Refer to Appendix
4
)
1.9 LAN Drive Type
Display : NA
Control : A-top
2.
Projection Lens Geometry Specification
Note: Projection Size for measurement as below: with mark ”*”
1. DMD Aspect ratio(16:9) ->projection size: 95 inch( diagonal) image size
2. DMD Aspect ratio(16:10) ->projection size: 87 inch( diagonal) image size
3. DMD Aspect ratio(4:3) >projection size: 78 inch diagonal) image size
2.1 F/#
Wide
Tele
2.1
2.63
2.2 Focal Length
Wide:
Tele:
21.7 mm
34.64 mm
2.3 Zoom Ratio
1.6 ±2%
2.4 Throw Ratio
1.5~2.4 (Wide 78” ±3% @ 2.38m)
2.5 True Zoom
NA
2.6 H,V Offset*
2.6.1 Offset H(%)*
0% ± 2.5%
Appendix A.15)
2.6.2 Offset V(%)*
default 107.5% ± 2.5%
(Mode
B, Appendix A.15)
2.6.3 Lens Shift(%)*
Vertical shift: +5%@ at default 107.5%±2.5%
"+": lens shift upward
"-": lens shift downward
2.7 Focus Range (m)
W: 1.86 ~ 9.32m T: 2.98 ~ 14.91 m
2.7.1 Screen Size (inch)
60” ~ 300” (Check by E pattern,
Appendix Pattern 6)
2.8 TV Distortion
Wide & Tele <1%
2.9 Keystone Distortion
Wide & Tele <1%
2.10 Screen Distortion*
|A,B| <=5mm, |C|<=5.0 mm @ 78" at 107.5% V offset
2.11 Focus Quality*
2.11.1 区Pattern*
(1) The pattern can be uniformly focused
–
then pass!
(2) If it’s difficult to judge, then check 2.11.2
Defocus/Flare judge criteria refer to Appendix A16/17
2.11.2
R
G
B
Defocus (Maximum) *
2.5
2.5
2.5
Flare (Maximum) *
3.5
3.5
3.5
2.12 Lateral Color*
Center Zone
All other area
R
-
G
<2/3
pixel
<1.0 pixel

9
B
-
G
<2/3 pixel
<1.0 pixel
R
-
B
<1.0 pixel
<1.0 pixel
2.13 DOF (Min. cm)
DOF 5 cm checked by E pattern. Refer to Appendix A24
"+" and"-" desinition
"+":move projector backward to far away the screen and until
focus limit. Record the
backward distance(+) for the rear
depth of focus.(後景深)
"-
":move projector forward to close to the screen and until
focus limit. Record the backward distance(-
) for the front
depth of focus.(後景深)
2.14 Zoom Ring Torque
200~650g follow Qisda Lens spec
2.15
Focus Ring Torque
50~300g
follow Qisda Lens spec
2.16 Lens offset Position
115%
出貨
(SI Provide) *For Lens Shift Models.
2.17 Zoom&Focus shaking level
Follow limit sample (When needed)
2.18 Lens Shift Shaking(lock) Level
Lock level:5 Lens weight
2.19
Lens Shift Speed(sec)
(only for motorized len shift) N.A.
3.Optical Specification
Test under “ * ” (diagonal) image size with Wide projection lens position.(base on lens best design value)
Reference Meter: CL-200 Meter (SN head:81531011, body:82521013)
3.1 ANSI Brightness
Normal: Minimum 6300 lm (
environment
>
35
℃
, MKT>6000
lm )
Normal: Typ 6650 lm (For reference)
ECO: Typ 5320 lm (For reference)
Connect HDMI =Optical native(DMD-full-on)
If no HDMI Source, measure PC Input ≧
97% of Optical
Native (DMD-full-on)
3.2 ANSI (
-
) uniformity
Minimum
-
50%
3.3 ISO Uniformity
Minimum 65%
3.4 ANSI Contrast
Minimum 150:1
3.5 FOFO Contrast
Minimum 1500:1 (WCE2), Refer to appendix
4
-
A23
3.6FOFO Contrast with DB
N.A.
3.7 color wheel segment
70Y30W90C30B65G75
3.8
color wheel speed
Data model:50Hz 2X 60Hz 2X
3.9 Color Coordinate
(Confirm at PVT stage)
Color
x
y
Δ
(u’,v’)
White
0.319
±
0.02
0.353
±
0.02
±0.03
Red
0.637±0.04
0.357±0.04
±0.04
Green
0.339±0.04
0.570±0.04
±0.04
Blue
0.147±0.03
0.068±0.03
±0.04
3.10 Color Uniformity
(Confirm at PVT stage)
Color
△
uv
White
≦
0.02
Red
≦
0.03
Green
≦
0.02
Blue
≦
0.02
3.11 Color Gamut
(Compare to NTSC)
Data model: Typical 60%
3.12 Light Leakage in AA
△≦
0.5 lux compared with center point @ full black
pattern
within 60”.
This light-
leakage is only described as the spot light with
obvious shape. The uniformity difference of black pattern is

10
not included. (Except DMD Defect)
3.13 Light Leakage out of AA
≦
1 lux, @ full black pattern with 60”~80“
≦3 lux, @ out of full black pattern with diagonal 80~120”
≦20 lux, @ out of full black pattern with diagonal >120”
(Except DMD Defect and high zoom ex: D zoom /zoom5 /
B zoom )
3.14 Ghost
Ghost (Confirm at EVT2 stage)
3.15 Defect
(Color Band, Dark Corner,
Dark band)
Follow limited sample (When needed).
3.16 Preset mode setting
4.Lamp Specification
4.1 Lamp
USHIO NSH465W E22.7
4.2 Lamp Sync Type
AC Lamp
4.3 Lamp Flick
Follow limited sample (When needed).
4.4 Lamp Power
Normal Mode
440W
-
> 425W
ECO
Mode
360W
Image
-
care or equivalent
NA
5. Mechanical Specification
5.1
Color & Texture
specifications
Refer to ID document for details
5.2 Physical
Dimensions
(Width X
Depth X Height) 446*336*152(mm)
5.3 Net Weight
≦
8.5kg
5.4 Security Slot
Kensington compatible slot 20Kg break away force
5.5 Lens Cover
Detached lens cover
5.6 Adjustment Feet
Adjustable foot in front, rubber foot in rear.
Front/ Rear foot
Tilt: 0-4.5
∘
,
Right/Left: +4.0
∘
/-4.0
∘
5.7 Ceiling Mounting
Match BenQ’s c
eiling mount required.
Use the same mounting as current shipping projectors.
5.8 Screws
All color of screws should similar with the plastic color which
close it.
5.9 During PVT stage, limited sample
of color and texture should be
approved by BenQ industrial
designer and mechanical
engineer.
N/A
5.10 Packaging
Cushion Material
EPE
6. Thermal Specification
Mechanical component temperature at ambience 0~40℃
6.1 Surface held or touched for short
periods
Normal surface:
Metal< 60 ℃ Plastic< 85 ℃
Bottom surface @25℃
Metal< 55 ℃ Plastic< 70 ℃
6.2 Surface which my be touched
Metal
Plastic
< 70
℃
< 95
℃
6.3 Exhaust Air
< 95
℃
6.4 Audible Noise Level Typical
Normal mode: 39dBA @ 25°C(table center)
Eco mode: 36dBA @ 25°C(table center)