Optoma EzPro 710 User manual

~PREFACE~
This manual is prepared for the maintenance service forDMD Projec-
tor series. Maintenance procedures described in this manual are intended to
isolate faulty parts and replace them in the field. It also aims to serve as a guide
in procuring replacement parts for this product.
This manual is copyrighted and all rights are reserved. This product may
not, in whole or in part, be copied, photocopied, translated or reduced to any
electronic or machine readable form without prior written consent except for
copies retained by the purchaser for backup purpose.
This manual includes system overview, major system assembly, com-
ponents’ description, and the “Troubleshooting” makes explanations on how to
detect errors. It also includes a flow chart for checking or correcting faults.
No Warranty or representation, either expressed or implied, is made
with respect to this documentation, its quality, performance, merchant-
ability or fitness for particular purpose.
No event will the vendor be liable for direct, indirect, special, inci-
dental or consequential damages arising out of the user or inability to use
this product or documentation.
PNOTICE
The information found in this manual is subject to change without prior
notice. Any subsequent changes made to the data herein will be incorporated
in future edition .
Model Name: EzPro 710
All Rights Reserved
Manual Version 1.0
Document #814-G04-01A

✽Table of Contents ✽
1. Introduction 1-1
1.1 ProductHighlight 1-1
1.2 Mechanical Specification 1-2
2. Fundamental Principle 2-1
2.1 Operating of Projector 2-1
2.2 User Control and Indicators 2-3
2.3 Optics of Projector 2-5
2.4 System 2-7
3. Mechanical Construction 3-1
3.1 Package Overview 3-1
3.2 Exploded Overview 3-3
3.3 Spare Parts Lists of Recommadation 3-9
4. Procedure of Disassembly 4-1
4.1 Disassemble Lamp Module 4-1
4.2 Disassemble the Main Body Unit 4-2
4.3 Dissassemble the DC-Dc Board 4-3
4.4 Disasemble Control Panel Module 4-4
4.5 Disassemble Engine and Electronic Module 4-5
4.6 Disassemble Main Board and DMDModule 4-6
4.7 Disassemble Lamp holder Module 4-6
4.8 Disassemble Ballast Module 4-8

5. Functions of Boards 5-1
5.1 Main Board 5-1
5.2 DC-DC Power Supply 5-7
5.3 KeyPad Board 5-10
5.4 DMD Module 5-11
6. Function Test & Alignment Procedure 6-1
6.1 Product 6-1
6.2 Test Equipment 6-1
6.3 Test Condition 6-1
6.4 Test Display Modes& Pattern 6-2
6.5 Function Test andAlignment Procedure 6-5
6.6 Hi-Pot &Grounding Test 6-7
6.7 Cleaning 6-7
6.8 EP 710 Display Specification Test Procedure 6-8
7. Troubleshooting Procedure 7-1
7.1 Equipment Needed 7-1
7.2 Main Procedure 7-1
8. Specification 8-1
8.1 DMD Specification 8-1
8.2 Lamp Specification 8-3
9. Appendix 9-1
9.1 Compatibility Modes 9-1
9.2 The SeriesNumber SystemDefinition 9-2

EzPro 710 1-1
Service Manual
EzPro710
Service Manual
One panel 0.9”DMDprojection system with 600ANSI
lumens,90 uniformity.
120-Watt Compact UHP Lamp.( user replaceable)
High efficiency cooling system with system acoustic
less than 42dB.
Light weight less than 5 lbs.
Manual focus projection lens.
True 1024*768 resolution,True Colors.
With up, down, left, and right screen reverse.
Build-in full screenNTSC/PAL/SECAM video capability
with composite and S-video terminals.
XGA/SVGA/VGA/MAC/PC98/FM Towns compatibility
with XGAcompression/pan.
Auto image re-sizing to 1024*768 full screen.
Auto detection of computer signal input.
AutoImage.(Auto-tracking/frequency/contrast/brightness/
position adjustment)
Powerful enlarge and freeze function
Automatically saves adjustments for future use
On-screen menu with more than 6 languages.
On Screen lamp life timer.
OneD-sub PC-data input.
Built-in one speaker with 3 Watt amplifier.
Self protect( 45 seconds) timer for hot re-strike of
UHPlamp.
Wireless remote controller.
1.1 Product Highlight
Chapter 1
Introduction
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EzPro 710 1-2
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1.2 Mechanical Specification
Light Valve
Contrast Radio
Lamp
Displayable Color
Projection Lens
Projection Screen Size
Computer Compatibility
Single ChipDMDTechnology
400:1(FullOn/FullOff)
200:1(ANSI Contrast)
120W User Replaceable UHP Lamp
16.7 M colors
F2.88 f=30.7mm
30’ (1m)~300’(10m) Diagonal
IBM &VESA VGA 640*350,70/85Hz
640*480,70/85Hz
720*400,70/85Hz
640*480,60/72/75/85Hz
800*600,56/60/72/75/85Hz
VESAXGA 1024*768,60/70/75/85Hz
Apple Macintosh LC 13” 1280*1024 compressed 60/75Hz
Apple Macintosh II 13” 640*480,67Hz
Apple Macintosh 16” 640*480,67Hz
Apple Macintosh 19” 832*624,75Hz
NEC PC-98 series 1024*768,75Hz
640*400,56Hz
640*480,60/70Hz
Fujitsu FM Towns 640*400,55Hz
640*480,60Hz
Video Compatibility
H.Frequency
V. Frequency
MultimediaAudio
NTSC/NTSC 4.43/PAL/SECAM compatibility
Composite video& S-Video capability
30kHz~90kHzhorizontal scan
50Hz~85Hzverticalrefresh
One internal speaker with 3 watt output

EzPro 710 1-3
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EzPro710
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Dimensions(W*H*D)
Environmental
Power Supply
Power Consumption
I/O Connectors
AC input 90~264VAuto-Switching Power Supply
<185W
Power:AC Power Input Socket
Computer Input:One 15-pinD-sub Computer Input
Video Input: One Composite Video RCA Input
One S-Video Input
Audio Input: One Phone Jack forAudio Input
Audio Output: One Phone Jack forAudio Line Input
5 lbs./2.3 kgs
3.54*8.58*9.9 inches/90*218*252 mm
Temperature
-Operating: 10 C to + 40 C
-Storge: -20 C to + 60 C
Maximum Humidity
-Operating: 10 C to + 40 C -- 80% RH, ono-condensing
-Storage: -20 C + 60 C -- 80%RH, non-condensing
Acoustic noise level
-42dB typical/45dB maximum
Lamp life
-2000 hours typital
Altitude
-Operating 10,000ft
-Storge 40,000ft
MTSF
-Operating more than 10,000 hours
FCC Class B, CE Mark classAB VCCI-1
UL, CUL, TUV, BCIQ
Regulation

EzPro 710 2-1
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EzPro710
Service Manual
Chapter 2
Fundamental Principle
2.1 Operating of Projector
Language —— Select display from six languages in their native spelling.
The current language is highlighted. Select another language to display all
menufunctionsin that language.
Display
Brightness and Contrast
-----Adjust the displayed image brightness and contrast
Color
----- Adjust color balance to compensate for ambient conditions
using three submenus:
7100oK ——The factory default
Custom Color —— Modify the color temperature balance.
Saturation —— Magnify the color intensity.
Keystone
----Adjust image distortion caused by tilting the projector. The
only adjustment direction allowed is to narrow the top width
of the image.
Image
Freeze
----To freeze the display of the current image.
Note:
a. Press the Freeze key again to unfreeze the display.
b. The “ Freeze Screen” should have an icon to indicate
the curent display has been frozon
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2.1.1 Fuctions in the On-Screen Menu

EzPro 710 2-2
Service Manual
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Service Manual
Track To adjust Phase of Sampling Clock
To avoid A/D converter to capture trasition of input signal
Frequency
To adjust total number of pixel clock in one line period.
Auto Image
For automatic tracking/frequnecy/position adjustment,
enable in “on” state, and disable in “off” state.( Data only)
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Audio Adjust the tone & Volume
Projection Select the project method & picture in picture fuction.
Lamp Warning & Reset
When lamp’s life end, it will show a warning message.
When replace a new lamp, reset the lamp hour.
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2.1.2 Service Manu
Use to enter Service Manu
Color wheel ------Adjust the index to charge the color combination
BurnIn -------------Supply burnin function
Luminance masure ---- Supply luminance measure function
Color Bar --------- Supply R,G,B picture
Lamp hours ------ lamp hours can be adjusted here
Focus --------------Supply text to adjust focus
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EzPro 710 2-3
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2.2 User Control and Indicators
There are two ways for you to control the functions: Remote Control and
Panel Control.
Remote Control Panel Control
Power / Standby
Power the lamp on and off when the main power switch is turned on.
Menu
Press to open the on-screen display (OSD) menus and to switch
amoung different menus. To exit OSD, select the “ Exit Menu” icon and press
“Enter” button. The projector saves any changes you made automatically.
Source
Press “Source” to choose between video and computer sources.
Reset
When you press “Reset” button, the OSDmenus shows message “Reset All
Yes/NO ? ”. Select “Yes” to confirm or select “ No” to cancel.This function
will reset all user adjustable parameters to factory default settings.

EzPro 710 2-4
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EzPro710
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Enter
Press “Enter” for confirming your selection.
Four Directional Select Keys
Use or to select items. Use or to make adjustments
for your selection.
Volume
To increase the volume, press
To decrease the volume, press
To mute the volume, press
Resync
Automatically synchronizes the projector to the input source.
Freeze
Press “freeze” button to still the screen image.
PIP (Picture in Picture)
Display video source image on a small screen. (Computer mode only).
Please refer to “Page 20” for detail informations.
Zoom In (Computer mode only)
Magnifies an image up to a factor of 32 on the projection screen.
When the “Zoom” icon displayed, you can use four directional select keys
to change the vertical or horizontal positioning of the image.
Zoom Out (Computer mode only)
Diminishes the zoom in image.
When the “Zoom” icon displayed, you can use four directional select keys to
change the vertical or horizontal positioning of the image.
Keystone
Adjusts image distortion caused by tilting the projector.