Optoma EP758, EP759 Schematic

SER VICE MANUAL

Model Na me : EP758/EP759

Prepared by SI :
________________________________________
Prepared by TSE :
________________________________________
Check by :
________________________________________
Approved by :
________________________________________

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21/01/40020.1VeussIlaitinI

Copyright July , 2004 . All Rights Reserved

Document #896-G04-01A . P/N: 36.89601.001

Preface

This manual is prepared for the maintenance service for EP758/EP759 Micro-portable XGA 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 expla nations on how to detect errors. It also include s 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.

EP758/EP759 Service Ma nual
Copyright July, 2004
All Rights Reserved
Ma nual V ersion 1.0
Document #896-G04-01A

EP758/EP759i

Table of Contents

Chapter 1 Introduction 1-1

Product Highlight 1-1
Optical Specification 1-2
Electrical Specification 1-3
Mecha nical Specif ication 1-5
Environment 1-5
Compatible Modes 1-6

Chapter 2 Disassembly of Procedure 2-1

Disa ssemble Lamp Module and Elevator Foot 2-1
Disa sse mble Top Cover, Front Cover, Keypad Board and
IR Sensor Module 2-3
Disa ssemble Main Board Module, Thermal Switch a nd LVPS Module 2-6
Disa ssemble Fa n Guider Module, Wind T unnel Module, La mp Driver
Module and Axial Fan 90*25 2-9
Disa ssemble Color Wheel Module, Optical Engine Module, 45*45*9
Dish Fan a nd Blower Fan 60*25 2-12
Disa ssemble Spe aker, Blower Fa n 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
T est Display 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 Progra m Installation Procedure 5-2

EP758/EP759ii

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

Serial Number System Definition 7-37
Reader’s Response 7-38

EP758/EP759iii

Chapter 1

Introduction

This manual is applied to 0.7”*1 DMD Color Projector with digital imaging functionality based on Digital
Micromirror Device (DMD) technology . It’s the mode of single pa nel,
long life lamp.
The manual gives you a brief description of basic technical information to help in service and main taining
the product.
Y our customers will a ppreciate the quick response time when you i mmediately identify problems that occur
with our products. W e expect your customers will a ppreciate the service that you offer the m.
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 mentioned in the
troubleshooting.

250watt(EP758) / 300 watt(EP759)

1-1 Product Highlights

- One 0.7" DDR DMD projection syste m with 2000(EP758) / 2210(EP759) ANSI lumen

- Contrast (FOFO) : 1000 : 1

- 250(EP758) / 300(EP759) - Watt Lamp 1500hrs (user repla cea ble)

- High efficiency cooling system with system acoustic noise level 33dBA(EP758) / 36dBA

(EP759) ( A verage )

- Dimensions : 250*335*100mm w/wind tunnel

- NTSC/P AL/SECAM video ca pability with S-video / composite / component, a nd HDTV
(480i/p, 576i/p, 720p, 1080i)

- Auto detection of computer signal input.

- Auto Image.(Auto-tracking /frequency /position adjustment)

- Automatically saves adjustments for future use

- On-screen menu with 11 language s(EP758) / 9 languages(EP759)

- One DVI input ( Including Analog a nd Digital RGB signal ) with HDCP function

- Wireless re mote controller

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1-1

EP758/EP759

1-2 Optical Specification

Technology Single 0.7” XGA DDR DMD chip

Resolution 1024 x 768

Brightness Specification: 2500(EP758) / 3000(EP759) lumens

T ypical output: 2000(EP758) / 2600(EP759) lumens

Contrast ratio Specification: 1500:1 full on/full off

T ypical output: 1300:1
Minimum: 1000:1 full on/full off

Uniformity Specification: 85% (JBMA)

Displayable colors 16.7 million colors 256 shades of gray

Color temperature 7500oK adjustable form 6500oK - 9500oK

Lamp type 300 watt lamp and power-saving mode to 250 watts for EP759

250 watt lamp and power-saving mode to 200 watts for EP758

Lamp life

2000 hours full on mode
1500 hours to 50% survival typical full on mode
3000 hours in ECO-mode
2500 hours to 50% survival typical in econo-mode

Projection lens 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)

Projection distance 1.2-10m

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1-2

EP758/EP759

1-3Electrical specification

Input connections

- Terminal:­DVI x 1 (Analog RBG, Component, HDTV, Digital RGB, HDCP)
15 pins D-sub VGA signal input
Composite V ideo X 1.
Three RCA connectors for Component video/HDTV input
Audio Input X 1
USB X 1 (for remote mouse)
S-Video X 1
IR x 2 (Front, T op panel)
RS232 Serial Control x 1 (3 pin mini din)
Power Cord x 1

- PC/V ideo: One DVI-I + USB(analog a nd digital YCbCr/YPbPr w/ HDCP).

- One D-Sub 15-pin connector for analog RGB/component video/HDTV

- V ideo: 3-RCA type connector f or YPbPr component video.

One mini DIN for S-video connector.
One composite RCA type connector.

- Control: 1 RS-232 (use standard Mini Dim 3 pins configuration) (with talk back ability and 9600

baud rate, talk back ability must include lamp hours) (on/off and all inputs should have
discreet IR and RS-232 commands)
One Audio input f or every input- (Phone Jack, Stereo)

Outputs One 15pin D-Sub Output

One audio out

Audio T wo watt built in two speakers respectively

Lock One Kensington key lock hole

Tilt angle 7 degrees with elevator mechanism

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1-3

EP758/EP759

IR receivers Front a nd Top of projector

Power Switch No toggle power switch required or wanted

Power supply Universal AC 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)

Power consumption Standby mode - < 10 W att @ 1 10V AC

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 R GB (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.

V ideo

-Composite video 1Vp-p,75 ohm

-S-video Luminance 0.714Vp-p,75 ohm

-Chrominance 0.286Vp-p,75 ohm

Computer Compatibility (Analog/Digital)

System Controller PIXEL WORKS PW463

Video Compati bility 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

Horizontal scan rate 15 – 100 kHz

Vertical scan rate 43 – 120 Hz

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1-4

EP758/EP759

1-4Mechanical Specification

Weight

Approximate 8lbs

Unit dimension (W X D X H)

inner dimension 335*250*100 (mm)

Cooling System

Advanced air flow

Three(EP758) / Four(EP759) fans with low system acoustic noise level

T emperature control circuits with ada ptive voltage
control fan speed

Tilt Angle

7 degrees with elevator mechanism

Keystone correction

± 16° V ertical a nd Horizontal

Lamp Door Protection

Lamp power supply shut off automatically when door open

1-5 Environment

Temperature Operating: 5 — 35°C

Storage: -20 — 60°C

Maximum Humidity Operating: 5 — 35°C, 80% non-condensing

Storage: -20 — 60°C, 80% non-condensing

Follow ISO-7779 regulation sound pressure level A weighting mea surement

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EP758 /EP759Acoustic noise level

33dB(A) / 36dB(A) ( T ypical, 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.

1-5

EP758/EP759

Lamp life 1500 hours typical, 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

Analog

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

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1-6

EP758/EP759

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

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1-7

EP758/EP759

Chapter 2

Disasse mbly Procedure

The Front Side The Rear Side

2-1 Disassemble Lamp Module and Elevator Foot

Step1: Turn unit to bottom side. Remove Lamp Cover a nd unscrew three screws to pull out La mp Module.

Lamp Cover

Lamp Module

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EP758/EP7592-1

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 T op Cover a nd then disconnect the connector to remove Front Cover .

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EP758/EP7592-3

Step3: Tear off the tape from Front Cover to remove the IR Sensor Module.

Step4: Disconnect two connectors to remove T op Cover .

Front Cover

IR Sensor Module

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EP758/EP7592-4

Step5: Unscrew three screws and disconnect the wire to remove the Keypad Board, Keypad Button

and FFC.

FFC

LED Lens

Keypad Button

Keypad Board

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EP758/EP7592-5

2-3 Disassemble Main Board Module, Thermal Switch

and LVPS Module

Step1: Disconnector eleven connctors from Main Board Module.
Step2: Unscrew six hex screws from Bottom Cover.

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EP758/EP7592-6

Step3: Disconnector two connectors to remove Main Board Module.
Step4: Unscrew one screw to remove Thermal Switch.

Main Board Module

Thermal Switch

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EP758/EP7592-7

Step5: Pull up the LVPS Module a nd the disconnect the connector .
Step6: Unscrew the screw to remove EMI Ground Plate and separate the wire.

LVPS

EMI Ground Plate

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EP758/EP7592-8

2-4 Disassemble Fan Guider Module, Wind Tunnel Module,

Lamp Driver Module and Axial Fan 90x25 Module

Step1: Unscrew three screws to separate Fa n Guider Module a nd W ind T unnel Module from Bottom Housing.
Step2: Unscrew two screws from W ind T unnel Module to remove Fa n Guider Module.

Fan Guider Module

Wind Tunnel Module

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EP758/EP7592-9

Step3: Unscrew six screws to remove Lamp Driver Module.
Step4: Separate two connectors from Lamp Driver Module.

Lamp Driver Module

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EP758/EP7592-10

Step5: Unscrew two screws to remove Axi al Fa n 90x25 Module.

Axial Fan 90x25 Module

Step6: Unscrew four screws to separate Fan Hoder Bracket and 90x25 Axial Fa n.

90x25 Axial Fan

Fan Hoder Bracket

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EP758/EP7592-11

2-5 Disassemble Color Wheel Module, Optical Engine

Module, 45x45x9 Dish Fan and Blower Fan 60x25

Step1: Unscrew five screws to remove Color Wheel Module.

Color Wheel Module

Step2: Unscrew one screw to separate Color Wheel and Photo Sensor Module.

Photo Sensor Module

Color Wheel

Step3: Unscrew four screws to remove Engine Module from Bottom Housing.

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EP758/EP7592-12

For EP758

Step4: Tear off EMI ta pe to separate Wind Guider Cover Mylar from Engine Module.

Note* If the unit is EP759, please skip step 4 and step 5

Step5: Unscrew four screws to remove DMD Heatsink.

DMD Heatsink

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EP758/EP7592-13

For EP759

Step6: Unscrew four screws to remove DMD Heatsink Module.
Step7: Unscrew four screws to remove DMD Heatsink Cover.
Step8: Unscrew three screws to separate 45x45x9 Dish Fa n from DMD Heatsink AL.

45x45x9 Dish Fan

DMD Heatsink Module

DMD Heatsink Cover

DMD Heatsink AL

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EP758/EP7592-14

Step9: Unscrew four screws to remove Bracket Plate, Insulation Mylar, DMD Board and DMD Chip.
Step10: Separate Blower Fan 60x25 Module and Optical Engine Module and then pull up Blower Fan

60x25 from the Silicon Rubber.

DMD Board

Bracket Plate

Optical Engine Module

DMD Chip

Insulation Mylar

Blower Fan 60x25

Silicon Rubber

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EP758/EP7592-15

2-6 Disa ssemble Speaker, Blower Fan 50x20, Thermal

Sensor Board, Interrupt Switch Module, Bottom
Cover and Rear Cover

Step1: Loose Rear Cover from Bottom Cover.

Step2: Unscrew four screws to remove Speaker.

Speaker

Speaker Poron

Rear Cover

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EP758/EP7592-16

Step3: Unscrew six screws to remove Blower Fan 50x20, Elevator Shading Mylar and Thermal Sensor Board.
Step4: Unscrew two screws to remove Interrupt Switch Module.

Blower Fan 50x20

Thermal Sensor Board

Elevator Shading Mylar

Bottom Cover

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Interrupt Switch Module

EP758/EP7592-17

Chapter 3

Trouble shooting

3-1 Equipment Needed

- EP758/EP759 Projector

- VESA VGA Cable/VESA DVI Cable

- PC (Personal Computer) with analog and digital signal output.

- D VD Player for V ideo Signal a nd Audio Signal.

- EP758/EP759 Remote Controller

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3-1

EP758/EP759

3-2 Main Procedure

3-2.1 Power T rouble shooting

A. Is LED Indicator OK?

- Check the Power cord a nd AC power outlet.

- Check the Keypad cable has broken or not.

- Check if all the wires are connected well inside.

- Check the Ballast.

- Check the Main board.

- Check the Keypad board.

B. Is Fa n W orking After Pre ss Power/Sta ndby Button?

- Check the Keypad cable has broken or not.

- Check if all the wires are connected well inside.

- Check the Thermal board.

- Check the Main board.

- Check the Fan.

C. Is Lamp Lit?

- Check the Lamp cover assembly OK or not.

- Check thay have the sound of Lamp ignitor output from Unit or not.

- Check if the cable of Interrupt Switch is connected well.

- Check the DMD board.

- Check the Lamp module.

- Check the Ballast.

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3-2

EP758/EP759

3-2.2 Performance Troubleshooting (Computer Signal)

A. Have Image?

- Ensure the Signal cable and Source work as well.

- Check that can OSD Menu show on the screen.

- Check the Main board.

- Check the DMD board.

B. Have Garbage Pattern?

- Ensure the Signal cable and Source work as well.

- Check the Main board.

- Check the DMD board.

C. Uniformity OK?

- Ensure the Projection screen without dirty.

- Ensure the Projection lens is clean.

- Ensure the Brightness is within spec.
(Replace the Lamp if the Brightnedd is less than spec.)

- Check the Optical engine.

D. Is Color OK?

- Ensure the Signal cable works as well.

- Check the “Color wheel index” in the service mode of OSD Menu. (*Note)

- Check the Photo sensor.

- Check the Main board.

- Check the DMD board.

E. Dot Defect isn’t Compliant with the Spec.

- Ensure the Projection lens is clean.

- Use the Air gun f or the Optical engine clea n.

- Check the DMD chip.

G. Have Noise?

- Ensure the Signal cable and Source is work as well.

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- Adjust the Tra cking selection in OSD Menu.

- Press the Menu button to check that have the noise issue appear on OSD Menu.
(Check the DMD board if the noise also appear on the OSD Menu.)

3-3

EP758/EP759

F. Have Line Bar?

- Adjust the frequency selection in OSD Menu.

- Press the Menu button to check that have Line bar show on the OSD
Menu. (Check the DMD chip and DMD board. If the Line bar also
show on the OSD Menu)

- Ensure that there is no dust on the DMD Contact housing module.

- Re-assembly for DMD module.

- Check the Main board.

G. Have Noise?

- Ensure the Signal cable and Source is work as well.

- Adjust the Tra cking selection in OSD Menu.

- Press the Menu button to check that have the noise issue appear on
OSD Menu. (Check the DMD board if the noise also appear on the
OSD Menu.)

*Note : The procedure to enter service mode is..

Press ”Power”, ”Up”, ”Down”, ”Right” button when the Unit under search
status.

3-2.3 Performa nce Troubleshooting (Video Sign al)

A. Have Image?

- Ensure the signal cable and source work as well.

- Check that ca n OSD menu show on the screen.
(Check the main board if OSD menu cannot show on the screen)

B. Have Garbage Pattern?

- Ensure the signal cable a nd source work a s well.

- Check that ca n OSD menu show on the screen.
(Check the main board if OSD cannot show on the screen)

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3-4

EP758/EP759

C. Is Color OK?

- Do the “Factory Reset” of the engineering mode.

- Ensure the signal cable work a s well.

- Check the color temperature setting of OSD menu.
(Check the main board if the setting of color temperature is under default)

- Check the color setting of OSD menu. Ex: “Saturation”, ”Tint” a nd “Sharpness”
setting of OSD menu.

D. Is Image Flicker?

- Ensure the signal cable work a s well.
(Please check the length of ca ble; the signal will be reduce when the
signal cable is longer tha n 5m)

- Do the “Factory Reset” of the engineering mode.
(Check the Main board if the i mage still flicker after the factory reset.)

E. Is There Line Bar Show On The Screen?

- Check that ca n OSD menu display on the line bar area.
(Check the DMD board if the OSD menu cannot display on the line bar area.)
(Check the Main Board if the OSD menu ca n display on the line bar area)

F. Is Image Noise?

- Ensure the signal cable is work a s well.
(Check the cable length of ca ble; the signal will be reduce when the
signal cable is longer tha n 5m)

- Do the “Factory Reset” of the engineering mode.
(Check the Main board if the i mage still display with noise.)

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3-5

EP758/EP759

3-2.4 Function Ttoubleshooting

A. OSD Does Not Show up.

- Check the Keypad cable and ensure there is no broken issue on the cable.

- Use Keypad to test again.

(Replace the Keypad board if the Unit works fine with the new Keypad board.)

- Use the Remote control for the OSD function test.

(Check the Keypad board and Keypad cable if the Remote control works as
well)

- Check the Main board.

B. Function Cannot Be Adjust.

- Check the Keypad cable and ensure there is no broken issue on the cable.

- Use Keypad to test again.

(Replace the Keypad board if the Unit works fine with the new Keypad board.)

- Use the Remote control for the OSD function Adjustment test.

(Check the Keypad board and Keypad cable if the Remote control works as
well)

- Check the Main board.

3-2.5 Audio Trouble shooting

A. No Sound Output.

- Ensure the Signal cable and Source are work fine.

- Use the new Speaker for the Sound output test.
(Replace the Speaker if the new Speaker works fine with the Unit.)

- Check the Speaker wire that has broken issue or not.

- Check the Main board.

B. Sound Output With Noise.

- Ensure the Signal cable and Source are work fine.

- Ensure the volume has not select to the max selection.
(Due to the output power of internal Speaker is 2W only.

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It might has the noise issue if the volume select to the max.)

- Use the new Speaker for the test.
(Replace the Speaker if the new Speaker works fine with the Unit.)

- Check the Speaker wire that has broken issue or not.

- Check the Main board.

3-6

EP758/EP759

3-2.6 Remote Controller Troubleshooting

A. Remote Controller No Function.

- Check the Laser function of Remote controller.
(Replace the battery if there is no Laser output from the Remote controller.)

- Use a known Remote controller for the function test.
(Replace the Remote controller if the new Remote controller works fine
with the Unit.)

- Check the Main board if the Unit works fine with a known good
Remote controller.

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3-7

EP758/EP759

Chapter 4

Function Test a nd Align ment
Procedure

4-1 Product

- EP758/EP759

4-2 Test Equipment

- IBM PC with XGA re solution (Color V ideo Signal & Pattern Generator)

- DV D player with component video (Y, Pb, Pr) and Multi-system (NTSC/PAL/SECAM)

- HDTV T uner or Source (480i/p,576i/p,720p,1080i)

- Minolta CL-100

- Quantum data 802B or Chroma 2327

4-3 Test Condition

- Circumstance Brightness

1.) Dark room less than 10 lux for functional inspection.

2.) Circumstance brightness over than 500 lux for external inspection.

- Inspection Distance

1.) About 1.5~3m for functional inspection (The prosection distance has to base on the
screen size till 60 inches)

2.) 30cm for external inspection.

- Screen Size : 60 inches diagonal (wide)

- Each EP758/EP759 should be run-in for 2 hours after repair.

- Each EP758/EP759 should be cooling for 5 minutes after the run-in test.

- Before function test and alignment, each EP759 should be warmed up for 5 minutes.

1.) In room temperature

2.) With cycled display colors (R,G,B,White) *Note

- Test Display Mode & Pattern (Refer to 4-4.1 & 4-4.2)

- Function T est and Alignment Procedure
*Note (a) Please enter “Service Mode” to select burn-in function. (For cycled display color mode)

image.

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(b) The procedure for enter Service Mode.
Press “Power”,”Up”,”Down”,”Right” button when unit is showing “search the signal”

4-1

EP758/EP759

4-4 Test Display Modes & Pattern

4-4.1 Compatible Modes

- Analog

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4-2

EP758/EP759

- Digital

,

4-4.2 Function Test Display Pattern

- PC Signal

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Coretronic Corporation

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EP758/EP759

Figure 2.Gray Scale Pattern

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EP758/EP759

Coretronic Corporation

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EP758/EP759

- Video & Audio Signal

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EP758/EP759

4-5 Inspection Procedure

- Elevator Function

1. Please check and ensure the function of elevator is work as well.

2. If not, please return the unit to repair area.

- Keypad Function (Including Remote Control)

1. Please check and ensure the control function of keypad is work as well.

2. If not, please return the unit to repair area.

- Clock and Clock phase

T est Signal:1024 x 768 @ 75Hz
T est Pattern:Fine Line Moire Pattern

1. Check and see If image sharpness and focus in well performed.

2. If not, readjust by following steps.
(a) Enter Image-I, and then select “Frequency” function to adjust the total pixel number

of pixel clock in one line period.

(b) Then select “phase” function and use right or left button to adjust the value to minimize

video flicker.

- R, G, B and white color contrast

T est Signal:1024 x 768 @ 75Hz
T est Pattern:64 RGBW scale pattern

1. Please check and ensure if each color is normal and distinguishable.

2. If not, please return the unit to repair area.

- Screen Uniformity

T est Signal:1024 x 768 @ 75Hz
T est Pattern:Full white pattern

1. Please check and ensure the unit is under the spec. (60% Minimum)

2. If not, please return the unit to repair area.

- Dead pixel (Bright pixel)

T est Signal:1024 x 768 @ 75Hz
T est Pattern:Full black pattern

1. Please check and ensure the unit is under the spec. (Cannot accept any bright pixel)

2. If not, please return the unit to repair area.

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EP758/EP759

- Dead pixel (Dark pixel)

T est Signal:1024 x 768 @ 75Hz
T est Pattern:Full white pattern

1. Please check and ensure the unit is under the spec. (Pixel number should be smaller
or amount to 6 pixels)

2. If not, please return the unit to repair area.

- Blemish (Bright)

T est Signal:1024 x 768 @ 75Hz
T est Pattern:Full black and Gray 30 patterns

1. Please check and ensure the unit is under the spec. (The bright blemish should not be
able to see under Gray 30 pattern)

2. If not, please return the unit to repair area.

- Blemish (Dark)

T est Signal:1024 x 768 @ 75Hz
T est Pattern:Full white a nd Blue 60 patterns

1. Please check and ensure the unit is under the spec. (The dark blemish should not be
able to see under Blue 60 pattern)

2. If not, please return the unit to repair area.

- Focus

T est Signal:1024 x 768 @ 75Hz
T est Pattern:Text pattern

1. Please check and ensure the unit is under the spec. (The text in the corner should be
able to see with clear)

2. If not, please return the unit to repair area.

- Boundary

T est Signal:1024 x 768 @ 75Hz
T est Pattern:Boundary frame pattern

1. Please check and ensure the unit is under the spec. (The horizontal and vertical
position of image should be adjustable to be the screen frame.)

2. If not, please return the unit to repair area.

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EP758/EP759

- Video

T est Signal:Composite video,S-Video a nd Component video
T est Pattern:NTSC,P AL,SECAM

1. Please check and ensure the unit can display the video signal without color abnormal
or image abnormal issue.

2. If not, please return the unit to repair area.

- HDTV

Test Signal:HDTV signal
T est Pattern:480i/p,576i/p,720p,1080i

1. Please check and ensure the unit can display the HDTV signal without color abnormal
or image abnormal issue.

2. If not, please return the unit to repair area.

- Audio

1. Please check and ensure the function of audio is work as well.
(Volume,Treble,Ba ss,Mute)

2. If not, please return the unit to repair area.

- Reset All

After final QC step, we have to erase all saved change again and restore the factory
defaults. Please select and enter “Factory Reset” function of “Service Mode” to ensure the
function is work as well. This a ction will allow you erase all end-user’s settings a nd restore

the original factory setting.

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Chapter 5

Firmware Upgrade Procedure

5-1 Equipment Needed

Software :

- Config.hex

- Flasher .hex

- FlashUpgrader.exe

- Gui.exe

- Pixelware.inf

- Romcode.hex

Hardware :

- Power Cord

- Cable RS232 To M ini Din 3Pin

- PC or La ptop

- EP758/EP759 Projector

5-2 Hardware Setup Procedure

1. Connecting RS232 Cable between PC and EP758/EP759 Projector.

RS232 Cable

Mini Din 3pin Port

EP758/EP7595-1

5-3 Firmware Progarm Installation Procedure

Step1. Execute the “Fla shUpgrader .exe” program.

Step2. 1. Click ”Choose” to get the file directory

2. Select <pwSDK.inf> file a nd open it.

3. Select the Serial port in Connection field, COM1: in COM Port field a n d
115200 in Baud Rate field.

1

3

2

EP758/EP7595-2

Step3. Click “Flash” to start the firmware upgra de procedure and keep press the

projector’s power button immedi ately until download “gui.hex” to 10%.

Flash

EP758/EP7595-3

Step4. After downloa ding all files, enter the service mode to check the F/W version.

Notice: Press the “Power” button to enter in shutdown screen.

Press “Up”, “Down”, “Right” button, and then enter the service mode to
check the F/W version.

*Notice

EP758/EP7595-4

Chapter 6

DDC Key-in Procedure

6-1 Equipment Needed

- PC or Laptop (OS:W indows98 or W indows Me)

- EDID Fixture

- DFP to DVI Ca ble

- Power Adapter

- RS-232 Cable

- V GA Ca ble

- Power Cord

- DDC Driver

- EP758/EP759

EDID Fixture
P/N:80.00001.001

DFP to DVI Cable
P/N: 42.81702.001

RS-232 Cable
P/N: 42.55708.001

VGA Cable
P/N:42.53001.051

Power Adapter
P/N: 47.53402.004

EP758/EP7596-1

6-2 Setup Procedure

Step1. Connect Power Adapter with fixture.
Step2. Make sure the JP1and JP5 are close and JP2 is open.
Step3. Connect P2 of the fixture with VGA Port of EP758/EP759 by the VGA Cable.
Step4. Connect P3 of the fixture with DVI Port of EP758/EP759 by the DFP to DVI cable.
Step5. T urn on the power of the fixture.

JP1

P3

JP2

P2

JP5

COM1

EP758/EP7596-2

6-3 DDC Key-in Procedure

6-3.1 Analog

Step1. Execute “EP759 EDID_B” progra m.
*Note: If the unit is EP758, Please execute “EP758 EDID_B” program.

Step2. M ark sure the COM port is connecting ok.

Choose the “Analog” to do the Analog DDC procedure.

EP758/EP7596-3

Step3. Key-in S/N in to the blank beside Barcode, a nd tha n press “Enter” key on the

keyboard to begin programming.

Step4. After finishing the a bove action, “P ASS” message will a ppear on the screen.

EP758/EP7596-4

6-3.2 Digital

Step1. M ark sure the COM port is connecting ok.

Choose the “Digital” to do the Digital DDC procedure.

EP758/EP7596-5

Step2. Key-in S/N in to the blank beside Barcode, a nd tha n press “Enter” key on the

keyboard to begin programming.

Step3. After finishing the a bove action, “P ASS” message will a ppear on the screen.

EP758/EP7596-6

Appendix A

Exploded Overview

I. EP758 / EP759

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EP758/EP759

Exploded Parts List of EP758 / EP759

70.89624.001/70.81C08.001

70.89614.001/70.81C02.001

70.89604.001/70.81C04.001

70.89603.001/70.81C06.001

70.89601.001/70.81C01.001

/EP758

/EP758

/EP758

/EP758

/EP758

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II. EP758 Bottom Housing Module

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Exploded Parts List of EP758 Bottom Housing Module

70.81C10.001

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III. EP759 Bottom Housing Module

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EP758/EP759

Exploded Parts List of EP759 Bottom Housing Module

70.81C10.001

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IV. EP758 Lamp Changer Module

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Exploded Parts List of EP758 Lamp Changer Module

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V. EP759 Lamp Changer Module

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Exploded Parts List of EP759 Lamp Changer Module

VI. EP758 Lamp Driver Module

Exploded Parts List of EP758 Lamp Driver Module

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VII. EP759 Lamp Driver Module

Exploded Parts List of EP759 Lamp Driver Module

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VIII. EP758 Front Cover Module

Exploded Parts List of EP758 Front Cover Module

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IX. EP759 Front Cover Module

Exploded Parts List of EP759 Front Cover Module

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X. EP758 Blower Fan 50x20 Module

Exploded Parts List of EP758 Blower Fan 50x20 Module

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XI. EP759 Blower Fan 50x20 Module

Exploded Parts List of EP759 Blower Fan 50x20 Module

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XII. EP758 Engine Module (YO Parts)

Exploded Parts List of EP758 Engine Module

70.89628.001

70.89617.001

70.81C07.001

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XIII. EP759 Engine Module (YO Parts)

Exploded Parts List of EP759 Engine Module

70.89628.001

70.89617.001

70.89616.001

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XIV. EP758 Optical Lens Module

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Exploded Parts List of EP758 Optical Lens Module

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XV. EP759 Optical Lens Module

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Exploded Parts List of EP759 Optical Lens Module

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XVI. EP758 / EP759 Top Cover Module

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Exploded Parts List of EP758 / EP759 Top Cover Module

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XVII. EP758 / EP759 Back Cover Module

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EP758/EP759

Exploded Parts List of EP758 / EP759 Back Cover Module

XVIII. EP758 / EP759 Axial Fan 92x25 Module

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EP758/EP759

Exploded Parts List of EP758 / EP759 Axial Fan 92x25 Module

XIX. EP758 / EP759 Blower Fan 60x25 Module

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EP758/EP759

Exploded Parts List of EP758 / EP759 Blower Fan 60x25 Module

XX. EP758 / EP759 Wind Tunnel Module

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EP758/EP759

Exploded Parts List of EP758 / EP759 Wind Tunnel Module

XXI. EP758 / EP759 Elevator Module

Exploded Parts List of EP758 / EP759 Elevator Module

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EP758/EP759

XXII. EP758 / EP759 IR Sensor Module

Exploded Parts List of EP758 / EP759 IR Sensor Module

XXIII. EP758 / EP759 Interrupt Switch Module

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Exploded Parts List of EP758 / EP759 Interrupt Switch Module

XXIV. EP758 / EP759 LVPS Module

Exploded Parts List of EP758 / EP759 LVPS Module

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XX V. EP758 / EP759 Engine Base Module

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EP758/EP759

Exploded Parts List of EP758 / EP759 Engine Base Module

70.89620.001

70.89619.001

/EP758

/EP758

XXVI. EP758 / EP759 Color Wheel Module

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EP758/EP759

Exploded Parts List of EP758 / EP759 Color Wheel Module

XXVII. EP758 / EP759 Elevator Foot Right Module

Exploded Parts List of EP758 / EP759 Elevator Foot Right Module

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XXVIII. EP758 / EP759 Elevator Foot Left Module

Exploded Parts List of EP758 / EP759 Elevator Foot Left Module

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EP758/EP759

XXIX. EP758 / EP759 Lamp Duct Module

Exploded Parts List of EP758 / EP759 Lamp Duct Module

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EP758/EP759

XXX. EP758 / EP759 DMD Heatsink Module

Exploded Parts List of EP758 / EP759 DMD Heatsink Module

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EP758/EP759

Appendix B

Serial Number System Definition

Serial Number Format for Projector

A BBB Y WW C D BEMO EEEE

1

1
2
3

4

5
6
7

8

EX1 :O81C429T0AAAA1001

This label “O81C429T0AAAA1001” represents the whole serial number for EP758,

2

: O = Optoma
: Product code (ex: 81C = EP758, 896=EP759)
: Y = Last number of the year (ex: 2004 - 4)
: Week of year
: Panel vendor code
: Electrical classification (1=110V, 2=220V , 0=universal)
: B = BIOS version, E = PCB board version,

M = Mechanical version, O = Optical version

: Serial code (from 0001~)

3

4

6

5

7

8

including V e r. 1st of BIOS and Ver. 1 of PCB Board. Both mechanical and optical ver­sion are 1st. In addition, panel vendor is T1. It’s produced on 29-week of 2004 for uni­versal area and its serial code is 1001.

EX2 : O896429T0AAAA1001

This label “O896429T0AAAA1001” represents the whole serial number for EP759,
including V e r. 1st of BIOS and Ver. 1 of PCB Board. Both mechanical and optical ver­sion are 1st. In addition, panel vendor is T1. It’s produced on 29-week of 2004 for uni­versal area and its serial code is 1001.

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EP758/EP759

*Reader’s Response*

Dear Readers:

Thank you for your backing our service manual up. In order to refine our content of the
service manual and satisfy your requirement. We expect you can offer us some precious
opinions for reference.

Assessment:

A. What do you think about the content after reading EP759 Service Manual?

tinU tnellecxE dooG riaF daB

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erudecorPtnemngilA&tseTnoitcnuF.4

rgpUerawmriF.5

erudecorPni-yekCDD.6

xidneppA.7

B. Are you satisfied with the EP759 service manual?

metI tnellecxE dooG riaF daB

tnetnoClaunaMecivreS.1

tuoyaLlaunaMecivreS.2

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C. Do you have any other opinion or suggestion about this service manual?

erudecorPeda

Reader’s basic data:

:emaN:eltiT

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:liam-E

After your finishing this form, please send it back to Coretronic Customer Service
Dept. by fax: [phone] or E-mail to [e-mail] Thanks :)

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EP758/EP759