Optoma EP739 User manual

ModelName:EP739/EP739H/EP738
Series
SERVICEMANUAL
Date Revise Version Description
2004/10/5 V1.0 Initial Issue
2005/7/11 V2.0
Add EP739H Product；Change in I
II:Notice
1-2
7-1:Notice
7-22:Notice
CopyrightOctober,2004 .AllRightsReserved
Document#80J-G04-02A.P/N:36.80J02.002
Prepared bySI:
________________________________________
Prepared byTSE :
________________________________________
Checked by:
________________________________________
Approved by:
________________________________________

Preface
Thismanualisapplied to EP739/EP739H0.7”DMDXGAand EP738 series0.5”DMDSVGAdigital
projection system. Themanualgivesyou abriefdescription ofbasictechnicalinformation to help in service
and maintaining theproduct.
Yourcustomerswill appreciatethequick responsetimewhen you immediately identify problemsthatoccur
with ourproducts. We expectyourcustomerswill appreciatetheservice thatyou offerthem.
Thismanualisfortechniciansand peoplewho havean electronicbackground. Send theproductback to
thedistributorforrepairing and do notattemptto do anything thatiscomplex orisnotmentioned in the
troubleshooting.
NOTICE:
Theinformation found in thismanualissubjectto changewithoutpriornotice. Any subsequentchanges
madeto thedataherein will beincorporated in furtheredition.
Copyright2004, October
All RightsReserved
ManualVersion 1.0
Document# 80B-G04-02A
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TableofContents
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Notice:1.Therearethree differencepartsbetweenEP739 and EP739H.
AstableI.
2.InordertodifferentiateappearancesdifferencebetweenEP739 and EP739H,
wegetapicturetodescriptionEP739H.
If wesee the markinthe speclabelastableII, thatmeanssuchkind of
productareEP739H.
Chapter1Introduction 1-1
ProductHighlight1-1
OpticalSpecifications1-2
ElectricalSpecifications1-4
MechanicalSpecifications1-5
Environment1-6
CompatibleModes1-7
TableII

Chapter2DisassemblyofProcedure 2-1
RemoveLampModuleand Back Cover2-1
RemoveTop Cover,Keypad Board,MainBoardand FrontCover2-2
RemoveLampDriver,70*20 AxialFanModuleand LVPS 2-5
Remove50*20 BlowerFan,ColorWheeland ThermalSwitch 2-7
RemoveDMDBoard,MDMChipand OpticalEngine Module 2-8
RemoveInterruptSwitchModule,ThermalSensorBoard,2-9
Speaker,ElevatorModuleand BottomCover
Chapter3Troubleshooting 3-1
EquipmentNeeded 3-1
MainProcedure 3-2
Chapter4Function Testand AlignmentProcedure 4-1
Product4-1
TestEquipment4-1
TestCondition 4-1
TestDisplayModesand Pattern 4-2
InspectionProcedure 4-7
Chapter5FirmwareUpgradeProcedure 5-1
EquipmentNeeded 5-1
HardwareSetup Procedure 5-1
FirmwareProgarm InstallationProcedure 5-2
FirmwareUpgrade Procedure 5-8
Chapter6DDC Key-inProcedure 6-1
EquipmentNeeded 6-1
Setup Procedure 6-2
DDC Key-inProcedure 6-3
AppendixA7-1
ExplodedDiagram7-1
AppendixB7-16
SerialNumberSystemDefinition 7-22
Reader’s Response 7-23
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1-1 EP739/EP739H/EP738
Series
Chapter 1
Introduction
1-1 Product Highlights
This manual is applied to DMD Color Projector with digital imaging functionality based on
Digital MicromirrorDevice (DMD) technology. It’s the mode of single panel, 200 watt long life
lamp.
The manual gives you a brief description of basic technical information to help in service and
main taining the product.
Your customers will appreciate the quick response time when you immediately identify
problems that occur with our products.We expect your customers will appreciate the service
that you offer them.
Thismanualisfortechniciansandpeoplewhohaveanelectronicbackground.Sendtheproduct
back to the distributor for repairing and do not attempt to do anything that is complex or is not
mentioned in the troubleshooting.
- One panel 0.7"DMDXGAprojection system with 2000ANSI lumens
: for EP739
One panel 0.5"DMDSVGAprojection system with 1600ANSI lumens
: for EP738 series
- Pheonix 200WDC SHP Lamp (user replaceable) dimmable to 160W
: for both EP739/EP738P
Ushio 200WDC SHPLamp (userreplaceable) dimmable to160W: for EP738
- High efficiency cooling system with low system acoustic noise level
- Light weightApprox. 5.3 lbs.
- Manual focus projection 1:1.2 zoom lens
- True 1024 x 768 resolution, 16.7M True colors
- With up, down, left, and right screen reverse.
- Build-in full screenNTSC/PAL/SECAM video capability with S-video /
Composite / component and HDTV terminals
- SXGA/XGA/SVGA/VGA/MAC compatibility.
- Auto image re-sizing to 1024 x 768 full screen
Auto image re-sizing to 800 x 600 full screen: for EP738 series only
- Auto detection of computer signal input

1-2 EP739/EP739H/EP738
Series
1-2 Optical Specification
Technology - Single 0.7” XGA DDR DMDchip
- Single 0.5” SVGA DDRDMD chip: for EP738 series
R esolution - 1024 x 768
- 800 x 600: for EP738 series
Brightness EP739
- 2000ANSI Lumens (Max.)
- 1600ANSI Lumens (Average)
- 1300ANSI Lumens ( Minimum)
EP739H
- 2500ANSI Lumens (Max.)
- 1760ANSI Lumens (Average)
- 1496ANSI Lumens ( Minimum)
EP738 series
- 1600ANSI Lumens (Max.)
- 1300ANSI Lumens (Average)
- 1040ANSI Lumens (Minimum)
Contrast ratio - 2000:1 Max. (Full on / full off)
- 1500:1 Typical (Full on / full off): for both EP739/EP738P
- 1300:1 Typical (Full on / full off): for EP738
- 1000:1 Minimum (Full on / full off)
Uniformity - 85% Max. (Japan Standard)
- 75% Typical (Japan Standard)
- 60% Minimum (Japan Standard)
- Automatically save adjustments for future use
- On-screen menu with 11 languages
- Built-in one speaker with 2 Watt amplifier
- Self protect timer for hot re-strike of compact P-VIPlamp
- Adaptive voltage control fan speed

1-3 EP739/EP739H/EP738
Series
Lamp type - Pheonix 200WDC SHP Lamp (user replaceable) dimmable
to 160W: for both EP739/EP738P
- Ushio 200SHPNHS Lamp (user replaceable) dimmable to
160W: for EP738
L a mp life - 2000 hours
- 1500 hours typical, 50% survival rate
Projection lens - F# 2.4 – 2.65 @2.4m, f = 28.04 ~ 35.59 mm @2.4m.
: for both EP739/EP738
F# 2.6 – 2.81 @2.4m, f = 22.34 ~ 26.8 mm @2.4m.
: for EP738P
1.2X Manual Zoom Lens.
Projection screen size -Adjustable from 24.6” to 246” (Diagonal)
: for both EP739/EP738
Adjustable from 36.9” to 246” (Diagonal): for EP738P
Projection distance - Suggeted throw distance: 1.2~10m (Mechanical travel)
: for both EP739/EP738
Suggeted throw distance: 1.5~10m (Mechanical travel)
: for EP738P

1-4 EP739/EP739H/EP738
Series
Display Panel - TIDMD, 0.7” 12 degreeDDR XGADigital MirrorDevice
TI DMD, 0.55” 12 degreeDDR XGADigital MirrorDevice
: for EP738 series
Power Supply - UniversalAC 100—240V 50 / 60 Hz with PFC input
- 200W for Phoenix SHP Lamp @ normal operation
:for both EP739/EP738P
200W for Ushio SHP Lamp @ normal operation:for EP738
- Variance FANspeed control (Depend on temperature variance)
Power Consumption - 265 Watt +/- 10% at normal operation
- Standby mode < 15W
Terminal- One 29-pinDVI-I connector forDigital signal with HDCP
: for EP739 only
- One D-Sub 15-pin female connector for analog RGB / HDTV
/ compoment video / SCART/RGB Sync
- OneD-Sub 15-pin female connector for monitor output
- One Phone Jack for audio input
- One MiniDIN4-pin for S-Video Input
- One RCAJack for Composite Video Input
- One MiniDIN3-pin for RS232
- USB connector for page up/down
Input Signal Spec - PC Signal
- Hsync Frequency 31 ~ 100 kHz
- Vsync Frequency 56 ~ 85 Hz
- Video Signal RGB (PC)
-Analog RGB 0.7Vp-p, 75 ohm
-Analog RGB 1Vp-p, 75 ohm, Sync. signal
- Separate TTL H,V Sync.
- Composite TTL Sync.
- Video
- Composite video 1Vp-p,75 ohm
- S-video Luminance 0.714Vp-p,75 ohm
- Chrominance 0.286Vp-p,75 ohm
1-3 Electrical specification

1-5 EP739/EP739H/EP738
Series
Video Compatibility - Standards :
-NTSC: M (3.58MHz), 4.43 MHz
- PAL: B,D,G, H, I, M,N
- SECAM: B, D, G, K, K1, L
- HDTV: 480i/p, 576i/p, 720p, 1080i
1-4 M e chanical Spe cif ication
Dimension(WxHxD) - 265mm X 236.4mm ( include focus ring and I/O connector ) X
104.6mm ( include feet and stick handle )
W e ight -Approx. 5.3 lbs.
Cooling System -Advanced air flow
- Two fans with low system acoustic noise level
- Temperature control circuits with adaptive voltage control fan
speed
- Maximum touch temperature follows UL60950
TiltAngle - 7 degree with elevator mechanism
Keystone correction -± 16° degree
Lamp Door Protection -Lamp power supply shut off automatically when door open.

1-6 EP739/EP739H/EP738
Series
Temperature - Operating: 5 - 35°C
- Storage: -20 ~ - 60°C
Maximum Humidity - Operating: 5 ~ 35°C, 80% RH (Max.), non-condensing
- Storage: -20 ~ - 60°C, 80%RH (Max.),non-condensing
Acoustic noise level -Normal mode: 34 dB(A) (Typical, 23+/-2°C )
- Dim mode: 30 dB(A) (Typical, 23+/-2°C )
-Noise measurement follows ISO 7779,A-weighted sound pressure
level measurement,
- 7200 rpm color wheel rotational speed
L a mp life - 2000 hours
- 1500 hours typical, 50% survival rate
Altitude - Operating 0~2,500 ft, for 5°C~35°C
2,500~5,000 ft, for 5°C~30°C
5,000~10,000 ft, for 5°C~25°C
- Storage 40,000 ft
MTBF - Operating more than 12,000 hours ( 90% Confidence Level )
1-5 Environment

1-7 EP739/EP739H/EP738
Series
1-6 Compatible Modes
Analog
( EP739 only)
( EP739 only)
( EP739 only)
( EP739 only)

1-8 EP739/EP739H/EP738
Series
Digital (For EP739 Only)

2-1 EP739/EP739H/EP738
Series
Chapter 2
Disassembly Procedure
Step1: Turn unit to bottom side. Unscrew two screws to remove Lamp Cover , and then
unscrew two screws to pull out Lamp Module.
2-1 Remove Lamp Module and Back Cover
Step2: Unscrew six hex screws and four screws to remove Back Cover : for EP739 only.
Back Cover
Step3: Unscrew four hex screws and four screws to remove Back Cover
: for EP738 series only.
Back Cover

2-2 EP739/EP739H/EP738
Series
2-2 Remove Top Cover, Keypad Board, Main Board
and Front Cover
Step1: Unscrew five screws and turn over the unit and press the Top Cover.
Step2: Unplug one FPC cable to remove Top Cover.

2-3 EP739/EP739H/EP738
Series
Step3: Unplug one FPC cable from Top Cover.
Step4: Unscrew four screws to remove Keypad Board and Keypad Button.
Step5: Unscrew three hex spacer from Top Cover.

2-4 EP739/EP739H/EP738
Series
Step6: Unplug one FPC cables and nine wires, and then unscrews 5 screws to remove Main
Board.
Main Board
MylarMylar
MylarMylar
Mylar
AbsorptionNoise CVS
Step7: Pull out Front Cover.
FrontCover

2-5 EP739/EP739H/EP738
Series
Step1: Unplug one wire, unscrew two screws and two hex screws of LampDriver, unscrew
two screws to remove Lamp Cable and then separate the wedge from the Fan
Module, and then remove the LampDriver.
2-3 Remove Lamp Driver, 70*20 Axial Fan Module
and LVPS
Step2: Unscrew two screws to remove Fan Module.

2-6 EP739/EP739H/EP738
Series
Step3: Under the Lamp Driver, unscrews seven screws to remove LVPS Plate.
(One is grounding screw).
Step4: Unplug two wires to remove LVPS.
LVPS LVPS Holder
GroundingScrew

2-7 EP739/EP739H/EP738
Series
2-4 Remove 50*20 Blower Fan, Color Wheel and
Thermal Switch
Step2: Remove 50*20 Blower Fan.
Srep3: Unscrew two screws to remove Light Cut and FanGuide Metal For Lamp.
Step4: Unscrew one screw to remove Thermal Switch.
Step1: UnscreweightscrewstoremoveEngineModule,50*20BlowerFanandColorWheel.

2-8 EP739/EP739H/EP738
Series
Front CoverFront Cover
Front CoverFront Cover
Front Cover
2-5 Remove DMD Board, DMD Chip and Optical
Engine Module
Step1: Unscrew four screws to remove Heatsink Baker and Heatsink Spring.
Step2: Unscrew four screws to removeDMDModule.