Optoma Optoma EP750 Manuel utilisateur

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EP750/755

Preface

This manual is prepared for the maintenance service for EP750/755

Micro-portable SVGA/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

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.

Manual Version 1.0

Document # 836-G04-01A

P/N :36.83603.001

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EP750/755

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I. Introduction 1-1

1-1 Product Highlights 1-2

1-2 Technical Specifications 1-3

II. Fundamental Principle 2-1

2-1 Whole System Block Diagram 2-2

2-2 Optics 2-6

III. Mechanical Construction 3-1

3-1 Package Overview 3-2

3-2 Exploded Overview 3-4

3-3 Recommendation Spare Parts List 3-20

IV. Procedure of Disassembly 4-1

4-1 Disassemble Top Cover Module, Keypad Board and Speaker 4-3

4-2 Disassemble AV Module and Connector Board 4-6

4-3 Disassemble Lamp Ballast and Power Supply 4-8

4-4 Disassemble Lamp Module and Thermal Board 4-10

4-5 Disassemble Fan Module and Front End Board 4-12

4-6 Disassemble Formatter Board 4-14

V. Function of Boards 5-1

5-1 Front End Board 5-2

5-2 Formatter Board (Side A) 5-10

5-3 Formatter Board (Side B) 5-11

5-4 Thermal Board 5-15

5-5 Data Connector Board 5-18

] Table of Contents ]

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EP750/755

VI. Specifications 6-1

6-1 DMD Specifications 6-2

6-2 Screen Defect Limits 6-3

6-3 Power Supply Specifications 6-4

6-4 Lamp Specifications 6-7

6-5 Lamp Driver Specifications 6-9

VII. Troubleshooting 7-1

7-1 Equipment Needed 7-2

7-2 Main Procedure 7-2

VIII. Function Test & Alignment Procedure 8-1

8-1 Product 8-2

8-2 Test Equipment 8-2

8-3 Test Condition 8-2

8-4 Test Display Modes and Patterns 8-3

8-5 Inspection Procedure 8-8

IX. Firmware Upgrading Procedure 9-1

9-1 Equipment Needed 9-2

9-2 Setup Procedure 9-3

9-3 Upgrading Procdure 9-3

X. DDC Key-In Procedure 10-1

10-1 Equipment Needed 10-2

10-2 Setup Procdure 10-2

10-3 DDC Key-in Procedure 10-4

XI. Appendix 11-1

11-1 Serial Number System Definition 11-2

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EP750/755

INTRODUCTION

This manual is applied to 0.7*1 DMD Color Projector with digital imaging func-

tionality based on Digital Micromirror Device (DMD) technology. Its the mode of

single panel, 200 watt long life SHP lamp. The manual gives you a brief descrip-

tion 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 expect 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 mentioned in the troubleshooting.

CHAPTER

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EP750/755

qOne panel 0.7 DMD projection system with 1350 ANSI lumens (Typical)-For EP750

1440 ANSI lumens (Typical)-For EP755

q270-Watt Compact SHP-DC Lamp (User Replaceable)

qHigh efficiency cooling system with system acoustic noise level 36dBA (Average)

qLight weight less then 6.8 lbs

qManual focus projection zoom lens

qTrue 1024*768 resolution, True colors

qWith up, down, left, and right screen reverse

qBuild-in full screen NTSC/PAL/SECAM video capability with S-video/composite/com-

ponent and HDTV terminals

qSXGA/XGA/SVGA/VGA/MAC/PC98/FM Towns compatibility with XGA compression/

pan

qAuto image re-sizing to 1024*768 full screen

qAuto detection of computer signal input

qAuto image. (Auto-tracking/frequency/position adjustment)

qPowerful enlarge and freeze function

qAutomatically saves adjustments for future use

qOn-screen menu with 9 languages

qOn Screen lamp life timer.

qOne DVI PC-data input (Including Analog and Digital RGB signal)

qBuilt-in one speaker with 3 Watt amplifier

qSelf protect (15 seconds) timer for hot re-strike of compact SHP-DC lamp

qWireless remote controller/mouse/laser

qAdaptive voltage control fan speed.

1-1 Product Highlights

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EP750/755

1-2 Technical Specification

1-2.1 Mechanical Specifications

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EP750/755

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"47.87/'45.6/m0.2 "312.94/'101.4/m052.1 "073.93/'182.3/m00.1

"11.811/'48.9/m0.3"918.37/'251.6/m578.1"550.95/'129.4/m05.1

"84.751/'21.31/m0.4 "524.89/'202.8/m5.2 "047.87/'265.6/m00.2

"58.691/'04.61/m0.5"30.321/'352.01/m521.3"524.89/'202.8/m05.2

"22.632/'96.91/m0.6 "836.741/'303.21/m57.3 "011.811/'348.9/m00.3

"95.572/'79.22/m0.7"442.271/'453.41/m573.4"597.731/'384.11/m05.3

"69.413/'52.62/m0.8 "58.691/'404.61/m0.5 "084.751/'321.31/m0.4

"33.453/'35.92/m0.9"654.122/'54.81/m526.5"561.771/'467.41/m5.4

"07.393/'18.23/m0.01 "360.642/'505.02/m52.6 "58.691/'404.61/m0.5

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"91.884/'86.04/m4.21"811.503/'724.52/m57.7"490.442/'143.02/m2.6

Throw Ratio : 2.0~2.5 (Projection Distance / Image Width)

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EP750/755

FUNDAMENTAL PRINCIPLE

This section provides the conceptual drawing about optics of projector.

You can realize optical projection system through the following diagram and the

integral part of configuration, too.

CHAPTER

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EP750/755

2-1 Whole System Block Diagram

D-Sub

Output

S-Video

Video

Audio

DVI

D-Sub

Mouse

RS232

Input

Speaker

Front-End

Board

Inter Lock

Switch

LVPS

Module

IR Receiver

Fan

Thermal

Board

Thermal

Sensor

Formatter

Board

Module

Lamp

Ballast

Module

Keypad

Photo

Sensor

LAMP

Module

Color Wheel

Thermal

Switch

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EP750/755

2-1.1 Front End Board Block Diagram

D-Sub output

Analog Input

Digital Input

Video Decoder

Memory

Image Process

MIS

Thermal Board

LVPS Module

DMD Module

R.G.B.H.Vsync

Digital R.G.B data

H.Vsync

SDA

SCL

GCLK

y (0-7)

UV (0-7)

GM-VHS

GM-VVS

GM-VPEN

GM-VCLK

Standby out

7 Sec

RESET

MCLK

DCLK

KDS (0-3)

KDR (0-2)

ERR

Standby-1

ECOMODE

LAMP Lit

Digital R.G.B Data

DCLK0

DENR

DVS

DHS

LAMP ON / Lamp Lit

RESET# / Lamp Lit

RESET0 / Lamp Lit

LAMP-IN

LAMP-OUT

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