Optoma EP776 User manual

SERVICE MANUAL
SI : TSE: Check: Approved:
Date Revise Version Description
2008.02.29 V1.0 Initial Issue
2008.03.25 V2.0 Modify Chapter 1
2008.05.26 V3.0 Add extended models (EP776W/TX776/TX776W/OPX4100/TX782/TX782W/
OPX4800/EP782W)
EP776/EP782/EP776W/TX776/TX776W/OPX4100/TX782/
TX782W/OPX4800/EP782W
Copyright May,2008. All Rights Reserved P/N: 36.88E01G001
Emy Yoyo

EP776 Series/EP782 Series Condential
Preface
This manual is applied to EP776/EP782/EP776W/TX776/TX776W/OPX4100/TX782/
TX782W/OPX4800/EP782W 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 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. 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.
EP776 Series/EP782 Series Service Manual
Copyright May.2008
All Rights Reserved
Manual Version 3.0

EP776 Series/EP782 Series Condential
EP776W(TX776W)&EP782 (TX782,OPX4800)Comparison List
EP776W(TX776W) EP782 (TX782,OPX4800)
1 DC.88E02G001 A D.C. EP776 WITH
WIRELESS 1 DC.88B01G001 A D.C. EP782
1 75.88B10G001 A BUYASSY WIRE-
LESS PCBA MOD-
ULE
1 70.88E20GR01 A OSRAM 280W
LAMP DRIVER
FOR EP7
1 70.88B22GR01 B PHILIPS 330W
LAMP DRIVER
FOR E
1 SP.88E01GC01 A LAMP MODULE
FOR PROJECTOR
EP77
1 SP.88B01GC01 B LAMP MODULE
FOR PROJEC-
TOR EP78
1 70.88E24GR01 D ASSY PCBA MAIN
BD MODULE FOR
U
1 70.88B24GR01 D ASSY PCBA
MAIN BD MOD-
ULE FOR E
1 70.88E11GR01 C ASSY ENGINE
MODULE EP776
(SERV
1 70.88B21GR01 C ASSY ENGINE
MODULE EP782
(SERV
1 70.88E10GR01 A ASSY COLOR
WHEEL MODULE
EP776
1 70.88B23GR01 A ASSY COLOR
WHEEL MOD-
ULE EP782
1 75.85H14G001 B ASSY LVPS LITE-
ON HD81 1 75.88B07G001 A MATRITEK 350W LVPS FOR
EP782(A
1 75.88E01G002 A BUYASSY INTER-
RUPT SWITCH
MODU
1 75.88B02G002 A BUYASSY
INTERRUPT
SWITCH MODU
1 49.89K01G001 A SUNON GB-
1205PKV1-8AY
50X50X20
1 75.88E02G001 A BUYASSY THER-
MAL SWITCH
MODULE
1 75.88B04G001 A BUYASSY
THERMAL
SWITCH MOD-
ULE
1 35.88E01G001 A LAMP WARNING
LABEL 280W PC
EP7
1 35.88B04G001 A LAMP WARNING
LABEL 330W PC
EP7
1 75.88B14G012 A BUYASSY IO
COVER MODULE
WITH
1 75.88B14G003 A BUYASSY IO
COVER MOD-
ULE FOR E

EP776 Series/EP782 Series Condential
EP776W(TX776W)&EP782W(TX782W) Comparison List
EP776W(TX776W) EP782W(TX782W)
1 DC.88E02G001 A D.C. EP776 WITH
WIRELESS 1 DC.88B02G001 A D.C. EP782 WITH WIRE-
LESS
1 70.88E20GR01 A OSRAM 280W LAMP
DRIVER FOR EP7 1 70.88B22GR01 B PHILIPS 330W LAMP DRIVER
FOR E
1 SP.88E01GC01 A LAMP MODULE FOR
PROJECTOR EP77 1 SP.88B01GC01 B LAMP MODULE FOR PROJEC-
TOR EP78
1 70.88E24GR01 D ASSY PCBA MAIN BD
MODULE FOR U 1 70.88B24GR01 D ASSY PCBA MAIN BD MOD-
ULE FOR E
1 70.88E11GR01 C ASSY ENGINE MOD-
ULE EP776 (SERV 1 70.88B21GR01 C ASSY ENGINE MODULE
EP782 (SERV
1 70.88E10GR01 A ASSY COLOR WHEEL
MODULE EP776 1 70.88B23GR01 A ASSY COLOR WHEEL MOD-
ULE EP782
1 75.85H14G001 B ASSY LVPS LITEON
HD81 1 75.88B07G001 A MATRITEK 350W LVPS
FOR EP782(A
1 75.88E01G002 A BUY ASSY INTER-
RUPT SWITCH MODU 1 75.88B02G002 A BUYASSY INTERRUPT
SWITCH MODU
1 75.88E02G001 A BUY ASSY THERMAL
SWITCH MODULE 1 75.88B04G001 A BUY ASSY THERMAL
SWITCH MOD-
ULE
1 35.88E01G001 A LAMP WARNING LA-
BEL 280W PC EP7 1 35.88B04G001 A LAMP WARN- ING LABEL
330W PC EP7

EP776 Series/EP782 Series Condential
EP776W(TX776W)&EP776(TX776,OPX4100) Comparison List
EP776W(TX776W) EP776(TX776,OPX4100)
1 DC.88E02G001 A D.C. EP776 WITH WIRE-
LESS 1 DC.88E01G001 A D.C. EP776
1 75.88B10G001 A BUY ASSY WIRELESS
PCBA MODULE
1 75.88B14G012 A BUYASSY IO COVER
MODULE WITH 1 75.88B14G003 A BUYASSY IO COVER MOD-
ULE FOR E

EP776 Series/EP782 Series Condential
Table of Content
Chapter 1 Introduction
Highlight 1-1
Compatible Mode 1-3
Chapter 2 Disassembly Process
Equipment Needed & Product Overview 2-1
Disassemble Lamp Cover Module 2-2
Disassemble Lamp Module 2-2
Disassemble Top Cover Module 2-3
Disassemble Front Ring Module 2-4
Disassemble Keypad Module 2-4
Disassemble IR Sensor Module 2-5
Disassemble Rear Cover Module 2-6
Disassemble Top Shielding & Wireless Module 2-6
Disassemble Main Board Module 2-7
Disassemble Network Module 2-8
Disassemble IO Board Module 2-8
Disassemble Fan Module 2-9
Disassemble LVPS Module 2-10
Disassemble Engine Module 2-11
Disassemble Color Wheel Module 2-13
Disassemble DMD Board & DMD Chip Module 2-14
Disassemble Zoom Ring & Zoom Ring Base & Focus Ring 2-15
Disassemble Rod Module 2-16
Disassemble Duct Module 2-16
Disassemble Blower Module 2-17

EP776 Series/EP782 Series Condential
Disassemble Rod Blower Module & Duct Module 2-17
Disassemble Wind Tunnel Module 2-18
Disassemble Honeycombed Module 2-18
Disassemble Lamp Driver Module 2-19
Disassemble Left & Right Limit Switch Module 2-20
Disassemble Bottom Support Shielding 2-21
Disassemble Rear Speaker & Right Speaker Module 2-22
Rod Adjustment 2-23
Re-write Lamp Usage Hour 2-24
Chapter 3 Troubleshooting
LED Lighting Message 3-1
Main Procedure 3-2
Chapter 4 Function Test & Alignment Procedure
Test Equipment Needed 4-1
Service Mode 4-1
OSD Reset 4-1
Test Condition 4-2
Test Inspection Procedure 4-3
PC Mode 4-3
Video Performance 4-7
Optical Performance Measure 4-8
Network Function Test 4-10
Wireless Function Test 4-12
Other 4-16
Chapter 5 Firmware Upgrade

EP776 Series/EP782 Series Condential
Equipment Needed 5-1
DLP Composer Lite Setup Procedure 5-2
USB Driver Upgrade Procedure 5-4
Firmware Upgrade Procedure 5-5
Chapter 6 EDID Upgrade
EDID Introduction 6-1
Equipment Needed 6-2
Setup Procedure 6-3
DDC Key-In Procedure (VGA1,VGA2,DVI Interface) 6-3
DDC Key-In Procedure (HDMI Interface) 6-7
Appendix A IAppendix A II
Appendix B
   SerialNumberSystemDenition     XXXV
   PCBACodeDenition      XXXVI

EP776 Series/EP782 Series Condential 1-1
Chapter 1
Introduction
1-1 Highlight
No Item Description
1Dimensions - 393.2*302.6*136.4mm, with foot
2Weight - <12lbs (5.45kg)
3Tilt Angle - >7°
4Power Supply - 100V ~ 240V + 10% 50~60Hz
5 Keystone correction - Manual Vertical-keystone +/- 16 degrees
6 DMD - Single 0.7” XGA DarkChip3, 2xLVDS, type A
7 Brightness
For EP776/EP776W/TX776/TX776W/OPX4100
- 3600 lumens Typical
- 3250 lumens Minimum
For EP782/EP782W/TX782/TX782W/OPX4800
- 4100 lumens Typical
3700 lumens Minimum
8Contrast - 2000:1 (Typical)
- 1500:1 (Minimum)
9Uniformity - 60% (minimum)
10 Throw ratio - 1.57 ~ 1.89:1 with optional Add-on Short Throw (Wide
0.83x) and Long Throw (Tele 1.25x) lens
11 Displayable colors - 134.2 million colors 512 shades of gray
12 Projection lens - F/2.52-2.79; f22.55-27.06 : 1.2x
13 Lamp life - 2000 hrs (BRIGHT), 3000hrs (STD) 50% survival rate with
50% lumen
14 Color temperature - Low/Mid/High selectable(adjustable from 5000ºK – 9500ºK)
15 Projection Screen Size - Adjustable 39.1’’ to 313.5”.(Diagonal)
16 Projection distance - 1.5 – 10 meter
17 Offset - 110% +/-10%
18 Aspect ratio - 4:3, 16:9 -I, 16:9 –II, Window
19 Chips set - DDP2230/DAD2000/PMD1000
20 De-interlace and Scalar - DDP2230 w/. Brilliant Color ™

EP776 Series/EP782 Series Condential 1-2
No Item Description
21 Inputs signal spec.signal spec.
- 1x DVI-I (connector) (accept DVI-D signal) with HDCP
- 1x HDMI with HDCP
- 2x VGA (D-sub 15) (support RGB/YPbPr, and only VGA1
support SCART )
- 1x S-Video
- 1x Composite
- 5x Audio-In (for following video inputs: DVI, VGA1, VGA2,
S-Video and Composite)
- 1x RS232
- 1x RJ-45 LAN
- 1x USB
- 2x IR Remote-Control Receivers (top and front)
- 1x Optional Built-in Wireless Module(For EP776W/
EP782W)
22 Outputs signal spec.signal spec.
- 1x VGA-Out (D-sub 15)
- 1x Audio-Out (φ3.5mm phone jack)
- 2x 3W speakers
- 1x 12V relay
23 Signal support
- NTSC: M (3.58MHz), 4.43 MHz, 480i
- PAL: B, D, G, K, I, M, N
- SECAM: B, D, G, K, K1, L
- SDTV/HDTV: 480i/p, 576i/p, 720p@50Hz/60Hz, 1080i@
50/60Hz,1080p@50Hz/60Hz.
24 Power consumption
Full Mode:
- 400 Wmax(EP776/EP776W/TX776/TX776W/OPX4100)
- 460 Wmax(EP782/EP782W/TX782/TX782W/OPX4800)
Eco Mode:
- 330w (Max) (EP776/EP776W/TX776/TX776W/OPX4100)
- 375w (Max) (EP782/EP782W/TX782/TX782W/OPX4800)
25 Color wheel - 5 segments
- R80Y30G84W90B76
26 Lamp
- EP776/EP776W/TX776/TX776W/OPX4100
280W lamp (Osram, requires BRIGHT/STD mode)
- EP782/EP782W/TX782/TX782W/OPX4800
330W lamp (Philips, requires BRIGHT/STD mode)
27 Temperature
- Operating 5-35°C, 80% humidity
Storage: 20 - 60°C, 80% humidity
Altitude: 5 - 35°C @ 0 – 2500 ft
5 - 30°C @ 2500 – 5000 ft
5 - 25°C @ 5000 – 10,000 ft
Maximum storage altitude 40,000 ft

EP776 Series/EP782 Series Condential 1-3
No Item Description
28 Light Leakage
- The light leakage of halo around the image shall be speci
ed in quality section but DMD mask or aperture in lens are
required
- The stray light outside the active region is under 0.8lux at
60” full black screen
29 Operational Noise
For EP782/EP782W/TX782/TX782W/OPX4800
- Typical :37dB/33dB for Bright(330W)/Std(270W) mode
Max :39dB/35dB for Bright(330W)/Std(270W) mode
For EP776/EP776W/TX776/TX776W/OPX4100
- Typical : 32dB/30dB for Bright(280W) /Std(230W) mode
Max : 34dB/32dB for Bright(280W) /Std(230W) mode
(at 23+/-2 deg C ambient temperature, 7200 RPM color
wheel rotational speed, following ISO 7779 regulation,
A-weighted sound pressure level measurement)

EP776 Series/EP782 Series Condential 1-4
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
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
XGA
1024x768 60 48.4
1024x768 70 56.5
1024x768 75 60.0
SXGA
1152x864 60 53.5
1152x864 70 63.8
1152x864 75 67.5
1152x864 85 77.1
1280x1024 60 63.98
1280x1024 75 79.98
1280x1024 85 91.1
1280x960 60 60.0
WXGA 1280 x 800 60 49.68
SXGA+1400x1050 60 63.98
UXGA 1600x1200 60 75.00
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
i Mac DV 1024x768 75 60
i Mac DV 1152x870 75 68.49
i Mac DV 1280x960 60 60.0
1-2 Compatible Mode
Computer Compatibility (Analog)

EP776 Series/EP782 Series Condential 1-5
Computer Compatibility (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
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
XGA
1024x768 60 48.4
1024x768 70 56.5
1024x768 75 60.0
SXGA
1152x864 60 53.5
1152x864 70 63.8
1152x864 75 67.5
1152x864 85 77.1
1280x1024 60 63.98
1280x1024 75 79.98
1280x1024 85 91.1
1280 x 960 60 60.0
WXGA 1280 x 800 60 49.68
SXGA+1400x1050 60 63.98
UXGA 1600x1200 60 75.00

EP776 Series/EP782 Series Condential 2-1
Chapter 2
Disassembly & Assembly Process
2-1 Equipment Needed & Product Overview
1. Screw Bit (+) :107
2. Hex Sleeves 5mm
3. Screw Bit (+) :102
4. Hex Sleeves 7mm
5. EP776W unit
* Before you start: This process is protective level II. Operators should wear electrostatic chains.
* Note: If you need to replace the main board, you have to get into service mode and record the
lamp usage hour. please refer to section 2-30.
Note:EP776 Series&EP782 Series are the same,here we take EP776W as an example.

EP776 Series/EP782 Series Condential 2-2
2-3 Disassemble Lamp
Module
1. Unscrew 2 screws to disassemble Lamp
Module
Note:You should cooling the unit at least 30
minutes,then you can disassemble
the lamp module
2-2 Disassemble Lamp
Cover Module
1. Unscrew 1 screw
2. Press 2 tenons to disassemble Lamp
Cover Module
Lamp Cover Module
Lamp Module

EP776 Series/EP782 Series Condential 2-3
2-4 Disassemble Top Cover
Module
1. Unscrew 5 screws
2. Press 1 tenon on the right side and 2
tenons on the left side (As red square)
3. Unplug 1 connector to disassemble Top
Cover Module (As yellow square)
Top Cover Module

EP776 Series/EP782 Series Condential 2-4
2-5 Disassemble Front Ring
Module
1. Unscrew 1 screw to disassemble Front
Ring Module
2-6 Disassemble Keypad
Module
1. Unscrew 4 screws (As red circle)and
unplug 2 connectors(As yellow square)
2. Unplug 1 connector to disassemble FPC
Cable(As red square)
3. Disassemble all components of the
Keypad Module

EP776 Series/EP782 Series Condential 2-5
2-7 Disassemble IR Sensor
Module
1. Press 2 tenons to disassemble Front IR
Sensor Module(As red square)
2. Disassemble Top IR Sensor Rubber
3. Press 2 tenons to disassemble Top IR
Sensor Module (As yellow square)
Note: - Disassemble the cable from plastic
tie(As green square)
IR Sensor Module

EP776 Series/EP782 Series Condential 2-6
2-9 Disassemble Top
Shielding & Wireless
Module(For EP776W/
EP782W/TX776W/
TX782W)
1. Unscrew 16 screws
2. Unscrew 1 screw
3. Disassemble Wireless Module
4. Take off Interrupt Switch from Top
Shielding
5. Disassemble Top Shielding
2-8 Disassemble Rear Cover
Module
1. Unscrew 3 screws
2. Disassemble an aerial
3. Disassemble Rear Cover Module
Rear Cover Module
Wireless Module Top Shielding

EP776 Series/EP782 Series Condential 2-7
2-10 Disassemble Main
Board Module
1. Unscrew 5 screws (As yellow circle)and
unplug 9 connectors(As red square)
2. Unscrew 4 screws to disassemble Main
Board Module (As green circle)
3. Unscrew 10 Hex screws (As red circle)
and 2 screws (As yellow circle) to
disassemble Iron cut
Main Board Module