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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ekirts-ertohrofremittcetorpfleS

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)

EP731 SERVICE MANUAL 2-3
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
2-1.1 Main Board Block Diagram
M1-DA
CONNECT
AD 888-170
RGB (VGA)
VGA, Digital &
YCbCr Input HSYNC
VSYNC
3.3VPLL
Digital Input
A1D (Low
Disable)
3.3VDD SiI141
PW166
GR0, GG0,
GB0
(0~7)
MCLK :
125MHz
GCLK
GRE, GGE,
GBE
(0~7)
DMD
Board
RGB Data
DCLK :
60MHz
DC3.3V, 5V,
12V
TE28F800
(FLASH RAM)
SAA7118
Video &
S-Video
Y2 : 24.
576MHz
VY
(0~7)
VU
(0~7)
PW1230
VY
(0~7)
VU
(0~7)
CNNT J5
Audio Thermal Board Speaker

2-4 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
2-1.2 DMD Board Block Diagram
CUSTOMER FRONT END
VSYNCZ
HSYNCZ
ACTDATA
OLACT
RV(7:0), GY(7:0), BU(7:0)
SYNCVAL
IIC BUS
LAMP CONTROL & STATUS
UNIV. SERIAL BUS
COLOR WHEEL INDEX
PIXEL CLOCK
DATAPATH
FORMATTER
DDP1000
RAMBUSTM
CLOCK
GEN
CLOCK OSC.
OR CRYSTAL RDRAM
Short Channel
CONFIG/SEQUENCE
MICRO. CODE
FLASH
VCC2, VOFFSET,
VBIAS, VRESET
GENERATION
ALLERGO
MOTOR
CONTROLLER
ADDRESS (18)
0.7 DDR DMD
1024*768
MRSTZ
MOTOR CONTROL
DMD CONTROL
DMD DATA (63:0)
RESET
ASIC
DMDCLLK
CONTROL
SR16 CONTROL (4:0)
VOFFSET/VCC2
VRESET
VBIAS
MBIASRST(16)
MOTOR
DRIVE
MOTOR STATUS
DATA (16)
+
12V
+ 5V

EP731 SERVICE MANUAL 2-5
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
2-1.3 Thermal Board Block Diagram
THERMAL BOARD Inter-
face
+12V
+5V
+3.3V
GND
LAMPEN
CWINDEX
LAMPLIT
USB Control
3P Connector
3P Connector*3
2P Connector
3P Connector
14P Connector
PHOTO
SENSOR
FAN1-3
THERMAL
SWITCH
BALLAST
DC TO DC POWER SUPPLY
+13VSBY
+5VSBY
+3.3VSBY
60P Connector to Main Board
14P Connector Keypad
Function
SPEAK
2P Connector
LAMPLIT_IN
LAMPLIT_OUT
3P Connector
IR
SENSOR
4P Connector Audio_L
Audio_R

2-6 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
2-2 Optics
2-2.1 Conceptual Drawing
Lamp
Hollow Rod
Condenser 1,2
Relay
DMD
Mirror
Projection Lens

EP731 SERVICE MANUAL 2-7
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
RelayHollow Rod
Condenser 1,2
Lamp

2-8 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
2-2.2 Basic Functions
Lamp Module The light source.
Hollow Rod Making the light beam uniform.
Relay Lens Relay the object
Condenser Condensing the light beam.
DMD Module Displaying component.
Mirror Folding optical path.
Projection Lens Projecting image on the screen

EP731 SERVICE MANUAL 3-1
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 package and exploded overview and re
placeable parts list and recommendatiom parts list for the portable
projector. You can place an order for correct parts in the recommen
dation parts list.
Mechanical Construction
3.

3-2 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
3-1 Package Overview
Replacement Parts List
metI N/P .veR noitpircseD
100.10768.PD
1190.20325.53A KNALB29*801NOTRACLEBAL
2100.10768.53A 137PEAMOTPOROFLEBAL
3100.73518.15A mm1.0*004*003EPDLGABDSE
4100.10768.35A 137PEGABYRRACTFOS
5100.10638.55B 557orPzE223*483*424BANOTRAC
6100.10768.65A 137PEEPENOIHSUC
7100.10000.75A g02REIRD2OISKCAP
8100.30645.85A ROF)ECAFELBUOD(mc31*001*021TELLAPDOOW
QAPMOC
9100.40645.85A QAPMOCROFmc001*021TELLAPREVOC
01100.40768.57A 137PEREVOCSNELYSSAYUB
11100.10768.KAA 137PEROFELUDOMXOBYROSSECCA
3-1.1 Accessory BOX Module (I)

EP731 SERVICE MANUAL 3-3
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
Replacement Parts List
metI N/P .veR noitpircseD
100.10768.KA
1100.20338.55A 037orPzEXOBYROSSECCANOTRAC
2100.10768.54A 137PERELLORTNOCETOMER
3100.10308.64B V5.14#YRETTAB
4200.21000.63B SEIRESPPLROFSU,DRACTNARRAW
5100.40378.24A XELOM;PM0012KLBM8.1)B(BSUOT)A(BSUELBAC
6100.50278.24A PM0023M8.1OEDIVETISOPMOCELBAC
7100.80918.24B OSURACmm0081AGVOTACRVTDHELBAC
8100.71278.24A PM0023M2SHVSELBAC
9100.50378.24A PM0012KLBM8.1P51AGVELBAC
01100.60378.24A PM0012)SU(KCALBJ501M3CADROCREWOPELBAC
11100.10368.65A 737PEEPEXOBYROSSECCAROFNOITITRAP
21100.10768.73A laugnilitluM137PEEDIUGS'RESU
3-1.2 Accessory BOX Module (II)

3-4 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
3-2 Exploded Overview
Replacement Parts List
metI N/P .veR noitpircseD
100.10768.CDA137PE.C.D
1100.90768.15A 137PELYRONREVOCPMAL
2100.60378.57A PM0012PMALROFTUCTHGILYSSAYUB
3100.13378.15A PM0012SBA+CPLEEHWROLOCROFTUCTHGIL
4100.42768.15A 137PEt52.0PPRFRALYMREVOCENIGNE
5100.52768.15A 137PEt5.0PPRFRALYMREVOCPMAL
6100.21768.15A 137PESBA+CPNOTTUBHSUPROTAVELE
7100.10768.07A 137PEELUDOMGNISUOHMOTTOBYSSA
8100.80768.07A 137PEELUDOMESABENIGNELACITPOYSSA
9100.01768.07A 137PEELUDOMREGNAHCPMALYSSA
01100.30768.07A 137PEELUDOMREVOCRAERYSSA
11100.40768.07A 137PEELUDOMREVOCTNORFYSSA
21100.60768.07A 137PEELUDOMREVOCPOTYSSA
31100.72378.15A PM0012t34.0PPRFRALYMDRAOBDMD
41100.03768.15A 137PEt5.0PPRFTNEVTNORFROFRALYM
51050.321A1.58A iN5*3MHCEMNAPWERCS
61080.323A1.58A KCALB8*3MHCEMNAPWERCS
71010.621A1.58
81060.321A1.58A iN6*3MHCEMNAPWERCS
91060.621A1.58A iN6*6.2MHCEMNAPWERCS