Optoma H31 User manual

Model Name : H31
SERVICE MANUAL
etaDnoisreVesiveRnoitpircseD
30/10/50020.1VeussIlaitinI
Copyright January, 2005 . All Rights Reserved
Document #81G-G04-01A . P/N : 36.81G03.001
Prepared by SI :
________________________________________
Prepared by TSE :
________________________________________
Check by :
________________________________________
Approved by :
________________________________________

ThismanualisappliedtoH31480P”DMDSVGA HomeTheater Projector with digital imagingfunctional-
itybasedonDigitalMicro-mirrorDevice(DMD)technology. It’sthemode ofsingle Panel,200 watt lamp
and854(H) x 480(V)resolution. Themanual givesyoua brief descriptionofbasic technical informationto
helpinserviceandmaintainingtheproduct.
Yourcustomerswillappreciatethequickresponsetimewhenyouimmediatelyidentifyproblemsthatoccur
withour products. We expect your customerswill appreciate the service thatyou offer them.
This manual is for technicians and people who have an electronic background. Send the product back to
thedistributor forrepairingand do notattemptto doanything thatis complexor isnot mentioned in the
troubleshooting.
NOTICE:
Theinformationfoundinthismanualissubjecttochangewithoutpriornotice.Anysubsequentchanges
made to thedatahereinwillbeincorporated in furtheredition.
Copyright2005,January
AllRightsReserved
ManualVersion1.0
Document #81G-G04-01A
Preface
H31I

H31II
Table of Contents
Chapter 1 Introduction 1-1
Product Highlights 1-1
Machanical Specifications 1-1
Electrical Specifications 1-2
Optical Specifications 1-2
Environmental Specifications 1-3
Chapter 2 Disassembly Procedure 2-1
Disassemble Lamp Module and Top Cover 2-1
Disassemble Keypad Board,Rear Cover, Main BD
and I/O BD 2-3
Disassemble Ballast, Thermal Switch, 60*20 intermedia Fan,
Front Fan Module and FanGuider Module. 2-6
Disassemble Color Wheel, Engine, Photo Sensor,DMDchip,
Blower Fan, Limit Switch, Elevator Foot Module and Bottom
Cover 2-10
Chapter 3 Troubleshooting 3-1
Equipment Needed 3-1
Main Procedure 3-1
Chapter 4 Function Test and Alignment Procedure 4-1
Product 4-1
Test Equipment 4-1
Test Condition 4-1
Service Mode Method 4-2
TestDisplay Modes & Pattern 4-2
Inspection Procedure 4-5
Chapter 5 Firmware Upgrade Procedure 5-1
Equipment Needed 5-1
Setup Procedure 5-1
Upgrading Procedure 5-2

Chapter 6 DDC Key-in Procedure 6-1
EquipmentNeeded 6-1
Setup Procedure 6-2
DDC Key-in Procedure 6-3
Appendix A Exploded Diagram 7-1
Appendix B Serial Number System Definition 7-19
SerialNumber Format for Projector 7-19
Appendix C Borad S/N Coding 7-20
Reader’s Response 7-21
III H31

H311-1
Coretronic Corporation
Chapter 1
Introduction
1-1 Product Highlights
- One panel 480P"DMDSVGAprojection system with 580ANSI lumens (Typical) and 490
ANSIlumens.(minimum)
- 200 Watt Lamp
- LightweightApprox.4.6lbs.
- True 800 * 480 resolution, 16.7MTrue colors
- Withup, down,left, andrightscreen reverse
- Build-infull screenNTSC / PAL/ SECAMvideo capability with S-video/ Composite/
ComponentandHDTVterminals
- SXGA/XGA/SVGA compatibilitywithoneD-subinput terminal
- Autoimage re-sizing to854 *480 full screen
- Manualfocusprojection
- Autodetectionofcomputersignalinput
- AutoImagesynchronization(Auto-tracking/frequency/positionadjustment)
- Eco mode supports
1-2 Mechanical Specifications
Dimensions(LxWxH) - External10.7*8.3*3.4 inches (272*210*86mm)
Weight - Approximate 4.6 lbs. (2.1 Kg)
CoolingSystem - Fourfanswithlowsystemacousticnoiselevel
- Temperaturecontrolcircuitswithadaptivevoltagecontrol
fan speed
Tilt Angle - 11 degreewithelevatormechanism
Keystonecorrection - +/- 16 degrees (32 degrees)
Lamp Door Protection - Lamppowersupplyshutoffautomaticallywhendooropen

H311-2
Coretronic Corporation
1-3 Electrical Specifications
PowerSupply
- UniversalAC 100—240V, 50/60 Hz
- 200W Lamp
- Variance FANspeed control (Depend on temperature variant)
Terminals
- DVI - I with HDCP(support SCARTRGB)
- CompositeVideoInput
- S-Video Input (MiniDIN 4-pin *1)
- YPbPr RCA (support 480i/p, 576i/p, 720p, 1080i)
- RS 232 C
Video Compatibility
- Standards:
NTSC M(3.58 MHz), 4.43 MHz
PAL B, D,G, K, I, M, N
SECAM B,D, G, K, K1, L
HDTV 480p, 576i/p720p, 1080i
1-4 Optical Specifications
ProjectionLens - ThrowRatio=1.65~2.0:1
ProjectionLens - Adjustablefrom31.8”to330.6” (Diagonal)
ThrowDistance - 1.4~12m
Brightness - 580ANSILumens,Typical,
- 490ANSILumens,Minimum
Contrast - 1500 : 1 Typical
- 1100:1Minimum
Uniformity - 90% Typical (Japan standard)
- 65% Minimum (Japan Standard)

H311-3
Coretronic Corporation
1-5 Environmental Specifications
Temperature:
- Operating : 5° to 35°C
- Storage : -20° to 60°C
MaximumHumidity
- Operating : 5° to 35°C, 80%RH (max), non-condensing
- Storage : -20° to 60°C, 80%RH (max), non-condensing
AcousticNoiseLevel:
- 36 ±2 dbA (typical @ 23 + 2° C)
LampLife:
- 2000 hours typical, 50% survival rate (Brite Mode)
- 3000 hours typical, 50% survival rate (Normal Mode)
Altitude:
- Operating : 0 ~ 2,500 ft 5~35° C
2,500 ~ 5,000 ft 5~30° C
5,000 ~ 10,000 ft 5~25° C
- Storage : 40,000 ft

H312-1
Coretronic Corporation
Chapter 2
Disassembly Procedure
2-1 Disassemble Lamp Module and Top Cover
Step1: Turn unit to bottom side and unscrew one screw to remove Lamp Cover
LampCover
Step2: Unscrew three screws to remove Lamp Module.
LampModule

H312-2
Coretronic Corporation
Step3: Unscrew four screws and unplug one connector to removeTop Cover .
TopCover

H312-3
Coretronic Corporation
2-2 Disassemble Keypad Board, Rear Cover and
IO Board and Main Board
Step1: Disconnectthe cable andtear off themylar.
Insulator Mylar Cable FFC
Step2: Unsrew three screws to take off Keypad Board.
Keypad Board
Keypad Buttom

H312-4
Coretronic Corporation
Step3: Unscrew two hex screws and two screws.
Main Board Module
Step4: Unplugelevenwires and unscrewfivescrews to removeMainBoard.

H312-5
Coretronic Corporation
Step5: Separate IO Cover Module and IO Board from Main Board.
IOCover Module
Main Board IOBoard

H312-6
Coretronic Corporation
2-3 Disassemble Ballast, Thermal Switch, 60*20
intermedia Fan, Front Fan Module and Fan
Guider Module
Step1: Unscrew five screws to put Ballast aside to the unit.
Step2: Separateone cable fromBushing and unplugtwo cables toremoveBallast.
Bushing
Ballast

H312-7
Coretronic Corporation
Step3: Unscrew eight screws and unplug one wire to remove LVPS Module.
Unscrew1 screwto remove the Thermal Sensor(inthe bluecircle).
LVPS Module
Step4: Unscrew one screw to remove Plate and Thermal Switch*.
*Notice: Be careful not to scratch the Color Wheel.
Thermal Switch
Plate

H312-8
Coretronic Corporation
Step5: Unscrew three screws to remove 60*20 Intermedia Fan Module and Fan Bracket..
60*20Intermedia Fan Fan Bracket
Step6: Unscrew four screws to remove Front Fan Module.
Front Fan Module

H312-9
Coretronic Corporation
Step7: Unscrew three screws to remove Front Fan Module.
Tear off the Mylar to remove the IR Receiver.
TopCover
System Fan
Fan Bracket
Step8: Unscrew one screw to remove Fan Guider Module.
Fan Guider Module
MM
MM
M
MM
MM
M
Mylar

H312-10
Coretronic Corporation
Step1: Unscrew one screw to remove Color Wheel*.
Notice: Do not scratch the Color Wheel.
2-4 Disassemble Color Wheel, Engine, Photo Sensor,
DMD Chip, Blower Fan, Limit Switch, Elevator Foot
Module and Buttom Cover
Color Wheel
Step2: Unscrew seven screws to remove Engine Module, Blower Fan and Photo Sensor.
Photo Sensor
Engine Module
BlowerFan

H312-11
Coretronic Corporation
Step3: Tear off Mylar and unsrew four screws to removeDMDBoard andDMDChip.
Heat Sink
DMDChip
DMD Board
Heat SinkHeat Mylar
DMDThermalPad
DMD Socket
Step4: Unscrewtwoscrews to removeLimitSwitch.
Limit Switch

H312-12
Coretronic Corporation
Step5: Unscrew two screws to remove Elevator Foot Module and Bottom Cover.
BottomCover
GearBar Base HolderSpringFoot

H313-1
CoretronicCorporation
Chapter 3
Troubleshooting
3-1 Equipment Needed
• H31 Projector
• PC (Personal Computer)
• VGACable
• Video/S-VideoInput
• ScrewDrivers
3-2 Main Procedure
Connect Power cord, S-Video and
then turn power on
Start
Is Lamp light on ? A. Power
Troubleshooting
No
Is Image OK ? B. Image Performance
Troubleshooting
C. Function
Troubleshooting
No
Yes
No
Is function OK ?
1
Yes
Yes