Optoma EP773 Instruction manual

Model Name : EP773
SERVICE MANUAL
Date Revise Version Description
2006/12/15 V0.1 Initial Issue
Copyright December, 2006. All Rights Reserved P/N: 36.86R02G001
95.86R01GC0A; 95.86R01G00A; 95.86R01GC01; 95.86R01GC0B;
95.86R01GC0C; 95.86R01GC0E; 95.86R01GC0H; 95.86R01GC0J;
95.86R01GC0K; 95.86R01GC0L; 95.86R01GC0T
Prepared by SI :
________________________________________
Prepared by TSE :
________________________________________
Check by :
________________________________________
Approved by :
________________________________________

This manual is applied to EP773 projection system. The manual gives you a
brief description of basic technical information to help in service and maintain
the product.
Your customers will appreciate the quick response time when you immediate-
ly 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. Please 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.
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 future edition.
EP773 Service Manual
Copyright December.2006
All Rights Reserved
Manual Version 0.1
EP773
i
Preface
Confidential

ii
Table of Content
EP773
Chapter 1 Introduction 1-1
Highlight 1-1
Compatible Mode 1-3
Chapter 2 Disassembly Procedure 2-1
Equipment Needed & Product Overview 2-1
Disassemble Lamp Module 2-2
Disassemble Top Cover Module 2-3
Disassemble Top Shielding Module 2-4
Disassemble Keypad Board and Keypad Button 2-5
Disassemble IR Receiver 2-6
Disassemble IO Cover 2-7
Disassemble Light Cut Mylar 2-8
Disassemble Airduct Module 2-9
Disassemble Isolator Mylar 2-10
Disassemble Main Board 2-11
Disassemble DMD Fan 2-12
Disassemble System Fan 2-13
Disassemble Side Shielding Module 2-14
Disassemble Lamp Driver Module 2-15
Disassemble LVPS Module 2-16
Disassemble Engine Module 2-17
Disassemble Power Module Holder 2-18
Disassemble Thremal Switch 2-19
Disassemble Heatsink and 2 Springs 2-20
Disassemble DMD Board and DMD Chip 2-21
Disassemble Color Wheel and Photo Sensor Board 2-22
Disassemble Zoom Ring 2-23
Disassemble Focus Ring 2-24
Disassemble Blower 2-25
Disassemble Interrupt Switch 2-26
Disassemble Bottom Base 2-27
Disassemble Front Lower Panel 2-28
Disassemble Front Shielding Module 2-29
Confidential

Chapter 3 Troubleshooting 3-1
LED Lighting Message 3-1
Main Procedure 3-2
System Block Diagram 3-5
Chapter 4 Function Test & Alignment Procedure 4-1
Test Equipment Needed 4-1
Service Mode 4-1
Reset(OSD) 4-2
Test Condition 4-2
Inspection Procedure 4-3
Chapter 5 Firmware Upgrade 5-1
Equipment Needed 5-1
Installation Procedure 5-2
USB Driver Upgrade Procedure 5-4
Firmware Upgrade Procedure 5-6
Chapter 6 EDID Upgrade 6-1
EDID Introduction 6-1
Equipment Needed 6-1
Setup Procedure 6-2
EDID Key In Procedure 6-2
Appendix A 7-1
Appendix B 7-26
Serial Number System Definition 7-26
PCBA Code Definition 7-27
Reader’s Response 7-28
Confidential iii EP773

1-1 EP773Confidential
No Item Description
1 Dimensions (L x W x H) - 348 x 258 x 110 mm
2 Weight - Approx. 7.2 Ibs
3 Tilt Angle - 7 degree with elevator mechanism
4 Power Supply - Universal AC 100—240V; 50 / 60 Hz with PFC
input
5 Lamp Housing
- Lamp could be changed by customer, but should
follow the user manual instruction.
- Replaceable Lamp should be provided by
Coretronic or its authorized agencies
6 Keystone correction - +/ -15 degree
7 Color
- Top Cover: Pantone Cool Gray 6C
- Bottom Base: Pantone 446C
- Side/Back covers: Pantone 446C
- Lens rim/Zoom ring/Focus ring: Pantone 446C
- Keypad: Pantone Cool Gray 6C
8 Input signal spec
- PC Signal (analog)
- Hsync Frequency 15k ~ 80 kHz (PC & Video)
- Vsync Frequency 50 ~ 85 Hz (PC & Video)
- 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
Chapter 1
Introduction
1-1 Highlight

1-2 EP773
Confidential
No Item Description
9 Cooling System
- Advanced air flow
- Three fans with low system acoustic noise level
- Temperature control circuits with adaptive voltage
control fan speed
- Maximum touch temperature follows UL60950-1
regulation
10 Brightness
- 3500 ANSI Lumens (Marketing)
- 3000 ANSI Lumens (Typical)
- 2550 ANSI Lumens (Minimum)
11 Contrast
- 2200:1 Marketing (Full White and Black)
- 1500:1 Typical (Full White and Black)
- 1000:1 Minimum (Full White and Black)
12 Uniformity
- 85% Marketing (Japan standard)
- 75% Typical (Japan standard)
- 60% Minimum (Japan Standard)
13 Throw Ratio -2.0~2.4:1
14 Lamp Door Protection - Lamp power supply shut off automatically when
door open
15 Projection lens
- f = 28.04 mm ~ 33.59 mm @2.4m
- F/2.4 ~ 2.65 @2.4m
- 1.2X Manual Zoom Lens
16 Lamp life
- 2000 hours min, 50% survival rate
(BRIGHT MODE e)
- 3000 hours min, 50% survival rate (STD MODE)

1-3 EP773Confidential
No Item Description
17 System Controller - TI DDP2000
18 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
19 Intelligent Zoom - By using “DDP2000” Chip to provide excellent
quality zooming
20 SXGA / Compression - By using “DDP2000” Chips to compress SXGA
image into XGA display
21 Power Consumption
- Full power mode: 325W + 10% at 110Vac.
- Dim mode: 280W + 10% at 110Vac.
- Standby mode: <12W
22 Color Wheel - R90G80B74W86Y30
23 Lamp - E20.6 260W OSRAM
24 Temperature - Operating: 5 -- 35°C
- Storage: -20 -- 60°C

1-4 EP773
Confidential
1-2 Compatible Mode
Mode Resolution V-Sync (Hz) Horiz.Freq.(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 1280x1024 60 63.98
1280x1024 75 79.98
SXGA+ 1400x1050 60 63.98
Analog

1-5 EP773Confidential
Mode Resolution V-Sync (Hz) Horiz.Freq.(KHz)
MAC LC 13’’ 640x480 66.66 34.98
MAC II 13’’ 640x480 66.66 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
I MAC DV 1024x768 75 60
1152x870 75 68.49
1280x960 75 75

1-6 EP773
Confidential
Mode Resolution V-Sync (Hz) Horiz.Freq.(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 1280x1024 60 63.98
SXGA+ 1400x1050 60 63.98
Digital

2-1 EP773
Confidential
2-1 Equipment Needed & Product Overview
Chapter 2
Disassembly Process
Item Photo Item Photo
Screw Bit
(+) :107
Hex Sleeves
5mm
Hex
Sleeves
8mm
Tweezers
Front Side Back Side
Left Side Right Side

2-2 EP773
Confidential
2-2 Disassemble Lamp Module
Lamp
Lamp Cover
No Procedure Photo
1 (1) Unscrew 1 screw
(as red circle)
(2) Disassemble Lamp Cover
2 (1) Unscrew 2 screws
(as red circle)
(2) Disassemble Lamp Module

2-3 EP773
Confidential
No Procedure Photo
1 (1) Unscrew 5 screws
(as red circle)
(2) Release 6 tennons
(as blue circle)
(3) Unplug FPC Wire and
Front IR Wire
(as yellow square)
(4) Disassemble Top Cover
Module
2-3 Disassemble Top Cover Module
Top Cover Module

2-4 EP773
Confidential
Top Shielding Module
No Procedure Photo
1 (1) Take off FPC Wire directly
(2) Unscrew 4 screws
(as red circle)
(3) Release 2 tennons
(as blue circle)
(4) Disassemble Top Shielding
Module
2-4 Disassemble Top Shielding Module
FPC Wire

2-5 EP773
Confidential
Keypad Board
No Procedure Photo
1 (1) Unscrew 1 screw
(as red circle)
(2) Disassemble Keypad
Board and Keypad Button
directly
2-5 Disassemble Keypad Board and Keypad Button
Keypad Button

2-6 EP773
Confidential
2-6 Disassemble IR Receiver
No Procedure Photo
1 (1) Take off Mylar and IR
Cover directly
(2) Disassemble IR Receiver
Top Cover
IR Receiver

2-7 EP773
Confidential
2-7 Disassemble IO Cover
No Procedure Photo
1 (1) Unscrew 1 screw
(as red circle)
(2) Unscrew 8 hex screws
(as green circle)
(3) Disassemble IO Cover
IO Cover

2-8 EP773
Confidential
2-8 Disassemble Light Cut Mylar
No Procedure Photo
1 Take off Light Cut Mylar
directly
(as red square)
Light Cut Mylar

2-9 EP773
Confidential
2-9 Disassemble Airduct Module
No Procedure Photo
1 (1) Unscrew 3 screws
(as red circle)
(2) Disassemble Airduct
Module
Airduct Module

2-10 EP773
Confidential
2-10 Disassemble Isolator Mylar
No Procedure Photo
1 Disassemble Isolator Mylar
directly
(as red square)
Isolator Mylar