Optoma EP731 User manual

EP731 SERVICE MANUAL 0-1
Introduction Fundamental Principle Mechanical Construction Procedure of Disassembly Function of Boards Specifications
Troubleshooting Function Test and Alignment Procedure Firmware pgrading Procedure DDC Key-In Procedure Appendix
This manual is prepared for the maintenance service for EP731 Micro-portable SVGA DLP Projector.
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, components description, and
the Troubleshooting making 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, merchantability or fitness for particular purpose.
No event that the vendor will be liable for direct, indirect, special, incidental or consequential
damages arising out of the user or inability to use this product or documentation.
¡ NOTICE :
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 further edition.
Copyright 2003, May
All Rights Reserved
Manual Version 1.0
Document # 867-G04-01A
P/N : 36.86708.001
Preface

0-2 EP731 SERVICE MANUAL
Introduction Fundamental Principle Mechanical Construction Procedure of Disassembly Function of Boards Specifications
Troubleshooting Function Test and Alignment Procedure Firmware pgrading Procedure DDC Key-In Procedure Appendix
Introduction....................................................................................................................... 1-1
Technical Specifications................................................................................................................ 1-2
Fundamental Principle....................................................................................................... 2-1
Electronic Function Block Diagram................................................................................................ 2-2
Optics............................................................................................................................................. 2-6
Mechanical Construction.................................................................................................... 3-1
Package Overview.......................................................................................................................... 3-2
Exploded Overview........................................................................................................................ 3-4
Recommendation Spare Parts List................................................................................................ 3-17
Procedure of Disassembly.................................................................................................. 4-1
Disassemble Lamp Cover and Lamp Module.................................................................................4-3
Disassemble Top Cover and Keypad Board.................................................................................. 4-4
Disassemble Main Board and I/O Board........................................................................................ 4-5
Disassemble DC-DC Board, Fan Module and Ballast Module....................................................... 4-7
Disassemble Fan, Engine Module, DMD Board and Bottom Base Housing................................. 4-10
pecifications.................................................................................................................... 5-1
Lamp Specifications....................................................................................................................... 5-2
Lamp Driver Specifications............................................................................................................. 5-4
DC-DC Specifications..................................................................................................................... 5-6
Troubleshooting................................................................................................................. 6-1
Equipment Needed........................................................................................................................ 6-2
Main Procedure.............................................................................................................................. 6-2
Table of Contents (I)

EP731 SERVICE MANUAL 0-3
Introduction Fundamental Principle Mechanical Construction Procedure of Disassembly Function of Boards Specifications
Troubleshooting Function Test and Alignment Procedure Firmware pgrading Procedure DDC Key-In Procedure Appendix
Function Test & Alignment Procedure................................................................................ 7-1
Equipment Needed......................................................................................................................... 7-2
Test Condition............................................................................................................................... 7-2
Test Display Modes and Patterns.................................................................................................. 7-3
Inspection Procedure..................................................................................................................... 7-7
Firmware Upgrading Procedure......................................................................................... 8-1
Equipment Needed........................................................................................................................ 8-2
Setup Procedure............................................................................................................................. 8-3
pgrading Procdure....................................................................................................................... 8-4
DDC Key-In Procedure.................................................................................................................................... 9-1
Equipment Needed........................................................................................................................ 9-2
Setup Procdure............................................................................................................................... 9-3
DDC Key-in Procedure................................................................................................................... 9-5
Appendix........................................................................................................................... 10-1
Serial Number System Definition.................................................................................................. 10-2
Table of Contents (II)

EP731 SERVICE MANUAL 1-1
Introduction Fundamental Principle Mechanical Construction Procedure of Disassembly Function of Boards Specifications
Troubleshooting Function Test and Alignment Procedure Firmware pgrading Procedure DDC Key-In Procedure Appendix
This manual is applied to EP731 0 55*1 DMD SVGA Micro Portable
Projector with digital imaging functionality based on Digital Micromirror
Device (DMD) technology Its the mode of single panel, 150 watt
Compact P-VIP lamp and 800*600 resolution The manual gives you
a brief description of basic technical information to help in service
and maintaining the product
Your customers will appreciate the quick response time when you
immediately identify problems that occur with our products We ex-
pect your customers will appreciate the service that you offer them
This manual is for technicians and people who have an electronic
background Send the product back to the distributor for repairing
and do not attempt to do anything that is complex or is not men-
tioned in the troubleshooting
Introduction
1.

1-2 EP731 SERVICE MANUAL
Introduction Fundamental Principle Mechanical Construction Procedure of Disassembly Function of Boards Specifications
Troubleshooting Function Test and Alignment Procedure Firmware pgrading Procedure DDC Key-In Procedure Appendix
1-1.1 Optical Specifications
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1-1 Technical Specifications

EP731 SERVICE MANUAL 1-3
Introduction Fundamental Principle Mechanical Construction Procedure of Disassembly Function of Boards Specifications
Troubleshooting Function Test and Alignment Procedure Firmware pgrading Procedure DDC Key-In Procedure Appendix
1-1.2 Electricial Specifications
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1-4 EP731 SERVICE MANUAL
Introduction Fundamental Principle Mechanical Construction Procedure of Disassembly Function of Boards Specifications
Troubleshooting Function Test and Alignment Procedure Firmware pgrading Procedure DDC Key-In Procedure Appendix
1-1.3 Mechanical Specifications
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EP731 SERVICE MANUAL 1-5
Introduction Fundamental Principle Mechanical Construction Procedure of Disassembly Function of Boards Specifications
Troubleshooting Function Test and Alignment Procedure Firmware pgrading Procedure DDC Key-In Procedure Appendix
1-1.4 Reliability
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EP731 SERVICE MANUAL 2-1
Introduction Fundamental Principle Mechanical Construction Procedure of Disassembly Function of Boards Specifications
Troubleshooting Function Test and Alignment Procedure Firmware pgrading Procedure DDC Key-In Procedure Appendix
This section provides the conceptual drawing about optics o
projector. You can realize optical projection system through the ol-
lowing diagram and the integral part o con iguration, too.
Fundamental Principle
2.

2-2 EP731 SERVICE MANUAL
Introduction Fundamental Principle Mechanical Construction Procedure of Disassembly Function of Boards Specifications
Troubleshooting Function Test and Alignment Procedure Firmware pgrading Procedure DDC Key-In Procedure Appendix
2-1 Electronic Function Block Diagram
M1-DA
Port
Video
Port
Audio
Port Power Control
Interface
Video
Processor
SAA7118
DVI
Receiver
SiI141
A/D
Converter
AD 888-
170MHz
Xtal=20MHz
MCLK=125MHz
DCLK=60MHz
Serial
EEPROM
Flash
ROM
Pixelworks
Image
Processor
PW166-
20K
RGB Data
Control Signal
DCLK=60MHz
DC 3.3V, 5V,
12V
100MHz
Crystal
or OSC
DLP DATA Processor -
DDP 1000
RAMBUS
RDEAM
128MBIT
60MHz OSC
DMD Board
SR16C DMD
RESET DRIVER
DMD MIRROR
0.7 XGA DDR
MOTOR
CONTROLLER
Main Board
VG A &
Digital
Input
Video
Input
IR Signal
&
Remote
Mouse
Display
Image
PROJECTION
LENS
COLOR
WHEEL
RGB Light Source
Light
Source
DC
to
DC
BALLAST
150W LAMP
Thermal
Board
Interlock
Switch
Thermal
Sensor*1
Fan*3
Normal=AC 85V Lamp turning on=AC612KV
12V to
Lamp
Driver
Control
Signal
Lamp Enable & LampLit
DC
400V
Power
AC
100V ~
240V
D port
V port
G port
Video
Signal
Processor
PW1230
Audio
Input
DC 3.3V, 5V,
12V
Control Signal
Control Signal
Audio
Device
Remote
Mouse
Device
DMD DRIVE
VOLTAGE
GENERATION
FLASH
MEMORY
RAMBUS
CLOCK
GEN.
(DRCG)