Optoma EP735 Manual de usuario

SERVICE MANUAL

EzPro735

This manual is prepared for the maintenance service for EP735 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 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.

AllRightsReserved

Manual Version 1.0

Doc.#834-G04-01A

P/N : 36.83403.001

Preface

SERVICE MANUAL

EzPro735

4TABLE OF CONTENTS 3

1. Introduction 1-1

1-1 Product Features 1-2

1-2 Technical Specification 1-3

2. Fundamental Principle 2-1

2-1 BlockDiagram 2-2

2-2 Optics 2-6

3. Mechanical Construction 3-1

3-1 Package Overview 3-2

3-2 Exploded Overview 3-4

3-3 Recommendation Spare Parts List 3-10

4. Procedure of Disassembly 4-1

4-1 Disassemble Top Cover and Speaker 4-2

4-2 Disassemble Main Board and DC-DC Module 4-3

4-3 Disassemble Engine, Formatter Board and Thermal Board 4-5

4-4 Disassemble Ballast Module 4-8

4-5 Disassemble Fan Modules 4-9

4-6 Disassemble Lamp Module 4-11

4-7 Disassemble Base Housing 4-13

5. The Function of Boards 5-1

5-1 Main Board 5-2

5-2 Formatter Board 5-10

5-3 IR Board 5-16

5-4 DC-DC Power 5-17

5-5 Thermal Board 5-19

5-6 Ballast 5-24

SERVICE MANUAL

EzPro735

6. Specifications 6-1

6-1 Lamp Specifications 6-2

6-2 DMD Specifications 6-4

6-3 ScreenDefects 6-7

6-4 DC-DC Specifications 6-9

6-5 LampDriver Specifications 6-10

7. Troubleshooting Procedure 7-1

7-1 EquipmentNeeded 7-2

7-2 Main Procedure 7-2

8. Function Test and Alignment Procedure 8-1

8-1 EquipmentNeeded 8-2

8-2 Test Condition 8-2

8-3 Test Display Modes and Pattern 8-3

8-4 Inspection Procedure 8-7

9. Firmware Upgrading Procedure 9-1

9-1 EquipmentNeeded 9-2

9-2 Setup Procdure 9-2

9-3 Upgrading Procdure 9-3

10. DDC Key-In Procedure 10-1

10-1 EquipmentNeeded 10-2

10-2 Setup Procdure 10-2

10-3 Upgrading Procdure 10-3

11. Appendix 11-1

11-1 SerialNumber Format 11-2

SERVICE MANUAL 1 - 1

EzPro735

Chapter 1

This manual is applied to EP735 0.7”*1 DMD XGA Micro Portable

Projector with digital imaging functionality based on Digital Micromirror

Device (DMD) technology. It’s the mode of single panel, 130 watt Compact

P-VIP lamp and 1024*768 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 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.

INTRODUCTION

SERVICE MANUAL 1 - 2

EzPro735

1-1 Product Highlights

uOne panel 0.7” DMDprojection system with 820 ANSI lumens (Average),

75% uniformity (Min.)

u130-Watt Compact P-VIP Lamp (user replaceable)

uHigh efficiency cooling system with system acoustic noise level 38dBA(Average)

uLight weight less than 3.4 lbs

uManual focus projection zoom lens

uTrue 1024*768 resolution, True colors

uWith up, down, left, and right screen reverse

uBuilt-in full screenNTSC/PAL/SECAM video capability with S-video/composite/

component and HDTV terminals

uSXGA/XGA/SVGA/VGA/MAC/PC98/FM Towns compatibility with XGA

compression/pan

uAuto image re-sizing to 1024*768 full screen

uAuto detection of computer signal input

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

uPowerful enlarge and freeze function

uAutomatically saves adjustments for furture use

uOn-screen menu with 9 languages

uOn-screen lamp life timer

uOneDVI PC-data input (IncludingAnalog andDigital RGAsignal)

uBuilt-in one speaker with 2-Watt amplifier

uSelf protect (15 seconds) timer for hot re-strike of compact P-VIP lamp

uWireless remote controller/mouse

uAdaptive voltage control fan speed

SERVICE MANUAL 1 - 3

EzPro735

1-2 Technical Specification

1-2.1 Optical Features

Technology Digital Light Processing™ (DLP™) technology

by Texas Instruments

Resolution 1024*768 XGA, True color

Brightness 820ANSI Lumens (Average)

700ANSI Lumens (Minimum)

Contrast Ratio 300:1 (Full White and Black)

Uniformity 50% (ANSI standard)

60% (3*3)

75% (Japan standard)

Displayable Color 16.7 Milion colors

ColorTemperature 6500oK~9000oK

Projection Lens f =28.51~34.21mm, F/2.2~2.4

ZoomFactor 1.2X , Manual

Projection Screen Size Adjustable from 20.5” to 246” Diagonal

Throw Distance 1.0m to 12m

SERVICE MANUAL 1 - 4

EzPro735

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ThrowRatio 2.17~2.94(ProjectionDistance/Image Width)

Horizontal Scan Rate 15~100 kHz

Vertical Refresh Rate 43~120 Hz

Pixel Frequency 140 MHz

Aspect Ratio 4:3, 16:9 (wide screen) compatible

VideoCompatibility Standards : NTSC (M, 4.43 MHz)

PAL ( B,D,G, H, I, M, N )

SECAM (B, D, G, K, K1, L)

HDTV ( 1080i , 720P , 480i/P )

TV Lines : 500 lines

PowerSupply UniversalAC 100-240V,AC 50/60Hz with PFC input (SRAM)

130W for 130W Compact V-VIP Lamp @ normal operation

Variance FAN speed control (Depend on temperature variant)

Audio One 8-Ohm, 2W, internal speaker

3-Watt amplifier

Input sensitivity 0.3Vrms.

1-2.2 Electrical Features

SERVICE MANUAL 1 - 5

EzPro735

Dimension (W x H xD) 8.86*6.93*2.0” / 225*176*52mm

Keystone Correction ± 16 degrees

Weight Approx. 3.46 lbs (1.572 Kg)

LampDoorProtection Lamp Power Supply shut off automatically when door open

1-2.3 Mechnical Features

Temperature Operating : 10°C~40°C / 50°F~104°F

Storage : -20°C~60°C / -4°F~140°F

Humidity Operating : 10°C~40°C, 80%RH (Max.), non-condensing

Storage : -20°C~60°C, 80%RH (Max.), non-condensing

Acoustic Noise Level 38dBA (Average, under 25oC)

Less than 40dBA(Minimum)

Lamp Life 1,000 hours Min. 70% survival rate

1,500 hours typical, 50% survival rate

Altitude Operating : 10,000 ft

Storage : 40,000 ft

MTBF Operating : more than 10,000 hours (80% confidence level)

1-2.4 Environmental Features

Regulation FCC Part 15 Class B

CE --- Class B

VCC --- Class B

CUL

TUV —GS

1-2.5 Regulation Features

SERVICE MANUAL 2 - 1

EzPro735

Chapter 2

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.

SERVICE MANUAL 2 - 2

EzPro735

2-1 Block Diagram

Speaker

D-subOutput

IR Receiver

S-Video

Video

Audio

DVI

Mouse

Input

Main

Board

DMD

Board

DMD

DC toDC

Inter Lock Switch

Thermal

Board

Fan

Ballast

Thermal

Switch

Sensor

Board

Projection Lens

Mirror

Condenser

Hollow Rod

Color Wheel

UV-IRL3

Lamp

Condenser

Keypad

Board

Mirror

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