Optoma EP 758 User manual

Model Name : EP758/EP759
SERVICE MANUAL
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Copyright July, 2004 . All Rights Reserved
Document #896-G04-01A . P/N: 36.89601.001
Prepared by SI :
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Prepared by TSE :
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Check by :
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Approved by :
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ThismanualispreparedforthemaintenanceserviceforEP758/EP759Micro-portableXGADLP
Projector.Maintenance proceduresdescribed inthis manualare intendedto isolatefaulty partsand replace
themin the field. It also aims to serve as a guide in procuring replacement parts for this product.
Thismanualiscopyrightedandallrightsare reserved.Thisproductmaynot,in wholeorinpart,be
copied,photocopied, translated or reduced to any electronic or machinereadableformwithoutpriorwritten
consent except for copies retained by the purchaser for backup purpose.
Thismanualincludessystemoverview,major systemassembly,components’description,andthe
“Troubleshooting”makingexplanationsonhowtodetecterrors.Italso includesaflowchart forcheckingor
correctingfaults.
No warranty or representation, either expressed or implied, is made with respect to this
documentation,itsquality,performance,merchantabilityorfitnessforparticularpurpose.
Noeventthatthevendorwillbeliablefordirect,indirect,special,incidentalorconsequentialdam-
agesarisingoutof the user orinabilityto use this productordocumentation.
Notice:
The information found in this manual is subject to change without prior notice.Any subsequent
changesmadetothedatahereinwillbe incorporated in further edition.
EP758/EP759Service Manual
CopyrightJuly,2004
All Rights Reserved
ManualVersion1.0
Document #896-G04-01A
Preface
EP758/EP759i

EP758/EP759ii
Table of Contents
Chapter 1 Introduction 1-1
Product Highlight 1-1
Optical Specification 1-2
Electrical Specification 1-3
Mechanical Specification 1-5
Environment 1-5
Compatible Modes 1-6
Chapter 2 Disassembly of Procedure 2-1
Disassemble Lamp Module and Elevator Foot 2-1
Disassemble Top Cover, Front Cover, Keypad Board and
IR Sensor Module 2-3
Disassemble Main Board Module, Thermal Switch and LVPS Module 2-6
Disassemble FanGuider Module, Wind Tunnel Module, LampDriver
Module andAxial Fan 90*25 2-9
Disassemble Color Wheel Module, Optical Engine Module, 45*45*9
Dish Fan and Blower Fan 60*25 2-12
Disassemble Speaker, Blower Fan 50*20, Thermal Sensor Board,
Interrupt Switch Module, Bottom Cover and Rear Cover 2-16
Chapter 3 Troubleshooting 3-1
Equipment Needed 3-1
Main Procedure 3-2
Chapter 4 Function Test and Alignment Procedure 4-1
Product 4-1
Test Equipment 4-1
Test Condition 4-1
TestDisplay Modes and Pattern 4-2
Inspection Procedure 4-7
Chapter 5 Firmware Upgrade Procedure 5-1
Equipment Needed 5-1
Hardware Setup Procedure 5-1
Firmware Program Installation Procedure 5-2

EP758/EP759iii
Chapter 6 DDC Key-in Procedure 6-1
Equipment Needed 6-1
Setup Procedure 6-2
DDC Key in Procedure 6-3
Appendix A 7-1
Exploded Overview 7-1
Appendix B 7-37
SerialNumber SystemDefinition 7-37
Reader’s Response 7-38

EP758/EP759
1-1
Coretronic Corporation
Chapter 1
Introduction
Thismanual is applied to 0.7”*1 DMD Color Projector with digital imaging functionality based on Digital
MicromirrorDevice (DMD) technology.It’sthemodeofsinglepanel,250watt(EP758)/300watt(EP759)
longlifelamp.
Themanualgivesyouabriefdescriptionofbasictechnicalinformationtohelpinserviceandmaintaining
the product.
Yourcustomerswillappreciate the quickresponsetimewhenyou immediatelyidentify problemsthatoccur
with our products. We expect your customers will appreciate the service that you offer them.
Thismanualis for techniciansandpeople who havean electronic background. Sendthe product backtothe
distributor for repairing and do not attempt to do anything that is complex or is not mentioned in the
troubleshooting.
- One 0.7"DDRDMDprojection system with 2000(EP758) / 2210(EP759) ANSI lumen
- Contrast (FOFO) : 1000 : 1
-250(EP758) / 300(EP759) - Watt Lamp 1500hrs (user replaceable)
- Highefficiencycoolingsystemwithsystemacousticnoiselevel33dBA(EP758)/36dBA
(EP759) (Average )
- Dimensions:250*335*100mmw/windtunnel
- NTSC/PAL/SECAM video capability with S-video / composite / component, and HDTV
(480i/p, 576i/p, 720p, 1080i)
- Autodetectionofcomputersignalinput.
- AutoImage.(Auto-tracking/frequency/positionadjustment)
- Automaticallysavesadjustmentsforfutureuse
- On-screen menu with 11 languages(EP758) / 9 languages(EP759)
- OneDVIinput(IncludingAnalogandDigitalRGBsignal)withHDCPfunction
- Wirelessremotecontroller
1-1 Product Highlights

EP758/EP759
1-2
Coretronic Corporation
1-2 Optical Specification
Technology Single0.7” XGA DDRDMD chip
Resolution 1024 x 768
Brightness Specification:2500(EP758)/3000(EP759)lumens
Typical output: 2000(EP758)/2600(EP759)lumens
Contrastratio Specification:1500:1fullon/fulloff
Typicaloutput:1300:1
Minimum:1000:1fullon/fulloff
Uniformity Specification:85%(JBMA)
Displayable colors 16.7million colors 256 shades ofgray
Colortemperature 7500oK adjustable form 6500oK - 9500oK
Lamptype 300 watt lamp and power-saving mode to 250 watts for EP759
250 watt lamp and power-saving mode to 200 watts for EP758
Lamplife
2000hoursfull on mode
1500hoursto50%survivaltypicalfull on mode
3000 hours in ECO-mode
2500hours to 50% survival typical in econo-mode
Projectionlens F/2.2-2.6; f24.5 –29.4: 1.2x (EP759)
F/2.4-2.6; f28-33.6:1.2x (EP758)
Projection screen size Adjustable from 24.4” to 292.5” (EP759)
Adjustable from 24.6” to 246” (EP758)
Projectiondistance 1.2-10m

EP758/EP759
1-3
Coretronic Corporation
Inputconnections
-Terminal:-
DVIx 1 (AnalogRBG, Component, HDTV,Digital RGB, HDCP)
15pinsD-subVGAsignalinput
Composite Video X 1.
ThreeRCAconnectorsfor Componentvideo/HDTVinput
Audio Input X 1
USB X 1 (for remote mouse)
S-Video X 1
IR x 2 (Front, Top panel)
RS232Serial Control x 1 (3 pin mini din)
Power Cord x 1
- PC/Video: OneDVI-I + USB(analog and digital YCbCr/YPbPr w/ HDCP).
-One D-Sub 15-pin connector for analog RGB/component video/HDTV
-Video: 3-RCAtype connector forYPbPr component video.
One mini DIN for S-video connector.
One composite RCA type connector.
-Control: 1 RS-232(use standard Mini Dim 3pins configuration)(with talk back ability and9600
baudrate, talkbackabilitymustincludelamphours) (on/offandallinputsshouldhave
discreet IR and RS-232 commands)
OneAudio input for every input- (Phone Jack, Stereo)
Outputs One 15pin D-Sub Output
Oneaudio out
Audio Twowatt built in two speakersrespectively
Lock OneKensingtonkeylock hole
Tilt angle 7degreeswithelevatormechanism
1-3Electrical specification

EP758/EP759
1-4
Coretronic Corporation
IR receivers Front and Top of projector
PowerSwitch No toggle power switch required or wanted
Powersupply UniversalAC 100-240V 50/60 Hz with PFC input
Used OSRAM P-VIP 300/1.3 E21.8 300W Lamp (EP759)
Used Phillip E21.8 250W Lamp (EP758)
Powerconsumption Standby mode - < 10 Watt @ 110VAC
Operational noise 36 dB(A) 300W(EP759) Normal mode
33 dB(A) 250 W(EP758) Normal mode
Input signal spec. Hsync Frequency 15 ~ 100 kHz
Vsync Frequency 43 ~ 120 Hz
Video Signal RGB(PC)
-Analog RGB 0.7Vp-p, 75 ohm, Separate TTL H,V Sync.
-Analog RGB 1Vp-p, 75 ohm, Sync. On Green signal
-Analog RGB 0.7Vp-p, 75 ohm, Composite TTL Sync.
Video
-Composite video 1Vp-p,75 ohm
-S-video Luminance 0.714Vp-p,75 ohm
-Chrominance 0.286Vp-p,75 ohm
ComputerCompatibility(Analog/Digital)
SystemController PIXELWORKS PW463
VideoCompatibility Standards
-NTSC - M (3.58 MHz), 4.43 MHz
-PAL - B, D, G, H, I, M, N
-SECAM - B, D, G, K, K1, L
-HDTV - 480i/576i ; 480p/576p ; 720p ; 1080i
Horizontalscan rate 15 – 100 kHz
Vertical scan rate 43 – 120 Hz

EP758/EP759
1-5
Coretronic Corporation
Weight
Approximate8lbs
Unit dimension (W X D X H)
innerdimension335*250*100(mm)
Cooling System
Advancedairflow
Three(EP758)/Four(EP759) fanswithlow systemacousticnoiselevel
Temperaturecontrolcircuitswithadaptivevoltage
controlfanspeed
TiltAngle
7degreeswithelevatormechanism
Keystone correction
±16°Vertical and Horizontal
LampDoorProtection
Lamppower supply shutoffautomaticallywhendooropen
Temperature Operating: 5 — 35°C
Storage: -20 — 60°C
MaximumHumidity Operating: 5 — 35°C, 80% non-condensing
Storage: -20 — 60°C, 80% non-condensing
33dB(A) / 36dB(A) ( Typical, 23 ± 2°C) with wind tunnel design
33dB(A) 250W / 36 dB(A) 300W lamp mode.
30dB(A) 200W / 33 dB(A) 240 W dimmable mode.
FollowISO-7779regulationsoundpressurelevelAweightingmeasurement
1-4Mechanical Specification
1-5 Environment
EP758 /EP759Acoustic noise level

EP758/EP759
1-6
Coretronic Corporation
Lamplife 1500hourstypical, 50% survival rate
Altitude Operating 0~2,500 ft 5°C~35°C
2,500~5,000 ft 5°C~30°C
5,000~10,000 ft 5°C~25°C
Storage 40,000 ft (Max)
MTBF 12000 HRs
1-6 Compatible Modes
Compatibility Resolution V-Sync [Hz] H-Sync [KHz]
VGA 640x350 70 31.5
640x350 85 37.9
640x400 85 37.9
640x480 60 31.5
640x480 72 37.9
640x480 75 37.5
640x480 85 43.3
720x400 70 31.5
720x400 85 37.9
SVGA 800x600 56 35.2
800x600 60 37.9
800x600 72 48.1
800x600 75 46.9
800x600 85 53.7
XGA 1024x768 43.4 35.5
1024x768 60 48.4
1024x768 70 56.5
1024x768 75 60.0
1024x768 85 68.7
SXGA 1152x864 70 63.8
1152x864 75 67.5
1152x864 85 77.1
1280x1024 60 63.98
1280x1024 75 79.98
1280x1024 85 91.1
SXGA+ 1400x1050 60 63.98
UXGA 1600x1200 60 75
MAC LC 13” 640x480 66.66 34.98
MAC II 13” 640x480 66.68 35
MAC 16” 832x624 74.55 49.725
MAC 19” 1024x768 75 60.24
MAC 1152x870 75.06 68.68
MAC G4 640x480 60 31.35
MAC G4 640x480 120 68.03
MAC G4 1024x768 120 97.09
i Mac DV 640x480 117 60
i Mac DV 800x600 95 60
i Mac DV
1024x768
75
60
Analog

EP758/EP759
1-7
Coretronic Corporation
i Mac DV
800x600
95
60
i Mac DV 1024x768 75 60
i Mac DV 1152x870 75 68.49
i Mac DV 1280x960 75 75
i Mac DV 1280x1024 85 91.1
Digital
Compatibility Resolution V-Sync [Hz] H-Sync [KHz]
VGA 640x350 70 31.5
640x350 85 37.9
640x400 85 37.9
640x480 60 31.5
640x480 72 37.9
640x480 75 37.5
640x480 85 43.3
720x400 70 31.5
720x400 85 37.9
SVGA 800x600 56 35.2
800x600 60 37.9
800x600 72 48.1
800x600 75 46.9
800x600 85 53.7
XGA 1024x768 60 48.4
1024x768 70 56.5
1024x768 75 60.0
1024x768 85 68.7
SXGA 1152x864 70 63.8
1152x864 75 67.5
1152x864 85 77.1
1280x1024 60 63.98
1280x1024 75 79.98
1280x1024 85 91.1
SXGA+ 1400x1050 60 63.98
UXGA 1600x1200 60 75

EP758/EP7592-1
Coretronic Corporation
Chapter 2
Disassembly Procedure
The Front Side The Rear Side
2-1 Disassemble Lamp Module and Elevator Foot
Step1: Turn unit to bottom side. Remove Lamp Cover and unscrew three screws to pull out Lamp Module.
LampModule
LampCover

EP758/EP7592-3
Coretronic Corporation
2-2 Disassemble Top Cover, Front Cover, Keypad
Board and IR Sensor Module
Step1: Unscrew eight screws and then turn unit to the top side.
Step2: Loose Front Cover from Top Cover and then disconnect the connector to remove Front Cover.

EP758/EP7592-4
Coretronic Corporation
Step3: Tear off the tape from Front Cover to remove the IR Sensor Module.
Front Cover IR Sensor Module
Step4: Disconnect two connectors to removeTop Cover.

EP758/EP7592-5
Coretronic Corporation
Step5: Unscrew three screws and disconnect the wire to remove the Keypad Board, Keypad Button
and FFC.
Keypad Button
FFC
Keypad Board
LED Lens

EP758/EP7592-6
Coretronic Corporation
2-3 Disassemble Main Board Module, Thermal Switch
and LVPS Module
Step1: Disconnectoreleven connctorsfromMainBoardModule.
Step2: Unscrewsix hex screws from Bottom Cover.

EP758/EP7592-7
Coretronic Corporation
Step3: Disconnectortwo connectors to remove MainBoard Module.
Step4: Unscrewone screw toremove Thermal Switch.
Main Board Module
Thermal Switch

EP758/EP7592-8
Coretronic Corporation
Step5: Pull up the LVPS Module and the disconnect the connector.
Step6: Unscrew the screw to remove EMI Ground Plate and separate the wire.
EMI Ground Plate
LVPS

EP758/EP7592-9
Coretronic Corporation
2-4 Disassemble Fan Guider Module, Wind Tunnel Module,
Lamp Driver Module and Axial Fan 90x25 Module
Step1: Unscrew three screws to separate FanGuider Module and Wind Tunnel Module from Bottom Housing.
Step2: Unscrew two screws fromWind Tunnel Module to remove FanGuider Module.
Wind Tunnel Module
Fan Guider Module

EP758/EP7592-10
Coretronic Corporation
Step3: Unscrewsix screws to remove LampDriver Module.
Step4: Separatetwo connectorsfrom LampDriver Module.
LampDriver Module