Optoma H79 Manuale utente

ModelName:H79

SERVICEMANUAL

Date Revise Version Description

2005/3/9 V1.0 Initial Issue

Prepared bySI:

________________________________________

Prepared byTSE :Jack

________________________________________

Checkby:

________________________________________

Approved by:

________________________________________

CopyrightMarch,2005 .All RightsReserved

Document#81E-G04-01A.P/N:36.81E03.001

ThismanualisappliedtoH79ProjectorwithdigitalimagingfunctionalitybasedonDigitalMicro-mirror

Device(DMD)technology. It’sthemodeofsinglePanel,250wattPhilipsUHPlamp. Themanualgives

youabriefdescriptionofbasictechnicalinformationtohelpinserviceandmaintainingtheproduct.

Yourcustomerswillappreciatethequickresponsetimewhenyouimmediatelyidentifyproblemsthatoccur

withourproducts. Weexpectyourcustomerswillappreciatetheservicethatyouofferthem.

Thismanualisfortechniciansandpeoplewhohaveanelectronicbackground. Sendtheproductbackto

thedistributorforrepairinganddonotattempttodoanythingthatiscomplexorisnotmentionedinthe

troubleshooting.

NOTICE:

Theinformationfoundinthismanualissubjecttochangewithoutpriornotice.Anysubsequentchanges

madeinthedatahereinwillbeincorporatedinfurtheredition.

AllRightsReserved

ManualVersion1.0

Document# 81E-G04-01A

Preface

H79I

H79II

TableofContents

Chapter1Introduction 1-1

ProductHighlights1-1

ComputerCompatibility1-4

Chapter2DisassemblyProcedure 2-1

ToolsNeeded 2-1

Removing LampModule 2-2

Removing I/O Panel,Top Coverand Keypad Board 2-3

RemovingThermalBoard,MainBoard,

ConnectorBoardand PowerModule 2-5

RemovingBallastModule,FrontCoverand Engine Module 2-7

Removing FanModule92x25mm,DMDChip,Fan Module

50x15mm,FanModule59x25mm,ThermalSensor2-9

RemovingAirDuctModule 2-13

Chapter3Troubleshooting 3-1

EquipmentNeeded 3-1

MainProcedure 3-2

Chapter4Function Testand AlignmentProcedure 4-1

Product4-1

TestEquipment4-1

TestCondition 4-1

TestDisplayModesand Pattern 4-2

InspectionProcedure 4-6

Chapter5FirmwareUpgradeProcedure 5-1

EquipmentNeeded 5-1

Setup Procedure 5-1

FirmwareUpgrade Procedure 5-2

HotKey5-5

Chapter6DDC Key-inProcedure 6-1

EquipmentNeeded 6-1

HardwareSetup Procedure 6-2

EDIDUpgrade Procedure 6-3

AppendixAExplodedOverview7-1

AppendixBSerialNumberSystemDefinition 7-19

Reader’s Response 7-20

H791-1

+D=FJAH

Introduction

1-1 Product Highlights

- One HD2 2.5G 0.79" DMD projection system with 540 ANS lumens.

- Contrast (FOFO) : 2800 : 1 (Typical), 2400:1 (Minimum)

-250 - Watt Philips UHP Lamp. Lamp life 1500 hours, Eco mode 2000 hours

- High efficiency cooling system with system acoustic noise level 32 +/- 2 dB(A) (Normal-mode) / 28

+/- 2 dB (A) (Eco- mode)

- Lens Up/Down Shift construction

- Adjustable Feet ( +/- 3 degrees)

- Dimensions : 430mm x 305mm x 135mm (External Max size)

- Motorized focus projection and zoom lens 1.35X

- 8 segments GgRBGgRB color wheel spinning at 150Hz

- Computer capability up to UXGA 60Hz for Analog and XGA 75Hz for Digital nputs

- NTSC/PAL/SECAM video capability with S-video / composite / component, and HDTV(480i/p,

576i/p, 720p, 1080i)

- Separately R/G/B/H/V BNC input supported.

- Auto detection of computer signal input(Auto-tracking /frequency /position adjustment).

- Source Lock Feature

- Automatically saves adjustments for future use

- On-screen menu with 10 languages

- On Screen lamp life timer.

- One DV PC-data input ( ncluding Analog and Digital RGB signal )

- Support HDCP function

- R remote controller

- No High Altitude Mode function supports in OSD

H791-2

- Weight : < 17.1 lbs. ( 7.8 Kg )

- Cooling System

a. Advanced Air Flow

Three fans with system acoustic noise level : 32dB(A) (Typical)

Temperature control circuits with adaptive voltage control fan speed

b. Max touch temperature follows UL60950 regulation

- Lamp Door Protection : Lamp power supply shuts off automatically when door opens

- Display Panel Specifications

a. T HD2+ DC3 (Dark Chip 3) 0.79 DMD / 12deg / 1280x720

b. Number of active dots : 1280(H) x 720(V)

- Power Supply :

Universal AC 90264V~50-60 Hz with PFC input

250W for Philips UHP Lamp at normal operation

- Power consumption

330W+/-10% (Operating@110V), 3.08A+/-10% (Operating@110V)

13.5W maximum (Stand-by@90V), 25W maximum (Stand-by@264V)

- /O ports

a. DV x 1 (DV ,Analog RBG, Component, HDTV)

b. BNC RBGHV x 1 ( R x 1, G x 1, B x 1, Hsync x 1, Vsync x1)

c. YCbCr x1 (R x 1, G x 1, B x 1)

d. Video input (RCA jack Type X 1)

e. Mini D N 4-pin X 1 (S-video)

f. R x 2 (Front, Rear)

g. RS232 Serial Control x 1 (D-sub)

h. Power Cord x 1

i. 12V Trigger relay x 2

- nput signal spec.

a. Hsync Frequency 31.5 ~ 91.1 kHz

b. Vsync Frequency 43 ~ 85 Hz

c. 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.

d. Video

Composite video 1Vp-p,75 ohm

S-video Luminance 0.714Vp-p,75 ohm

S-video Chrominance 0.286Vp-p,75 ohm

H791-3

- nput signal spec.

a. Hsync Frequency 31.5 ~ 91.1 kHz

b. Vsync Frequency 43 ~ 85 Hz

c. Video Signal RGB (PC)

Analog RGB 0.7Vp-p, 75 ohm

- Video Compatibility

a. Standards :

NTSC - M, 4.43 MHz

PAL - B, D, G, H,

SECAM - B, G, H, K, K1, L

HDTV - 480i, 480p, 576i, 576p, 720p, 1080i

b. TV Lines - 500 lines

- Keystone

a. Vertical : +/- 16 degree (Desk-projecter angle)

b. Horizontal : +/- 7 degree (Screen-projecter angle)

- Projection lens : f = 28.3 ~ 38.2mm, F/3.4, 1.35X Manual Zoom Lens.

- Projection mage Size : 30 to 280 Diagonal (Wide)

- Throw Distance : 3.28 ft to 32.80 ft / 1.0m to 10m(Wide).

- Throw Ratio : 1.6~2.16 (Projection Distance/ mage Width)

- Brightness : 540 ANS lumens

- Temperature

a. Operating : 5°C  35°C

Storage: -10°C  60°C

- Maximum Humidity

a. Operating: 5°C  35°C , 80%RH (Max.), non-condensing

Storage: -10°C  60°C , 80%RH (Max.), non-condensing

- Lamp life :

a. 1500 hours min. , 50% survial rate (Normal mode)

2000 hours min. , 50% survial rate (Eco mode)

( Lamp life = normal lamp life+1/2 Eco lamp life )

- Altitude :

a. Operating : 0~2,500 ft 5°C~35°C

2,500~5,000 ft 5°C~30°C

5,000~10,000 ft 5°C~25°C

Storage : 40,000 ft

- MTBF : Operating more than 12,000 hrs (90% confidence level)

H791-4

1-2 Computer Compatibility

Compatibility Resolution V-Sync [Hz] H-Sync [KHz]

VGA 640x4 0 60 31.5

640x4 0 72 37.9

640x4 0 75 37.5

640x4 0 5 43.3

720x400 70 31.5

720x400 5 37.9

SVGA 00x600 56 35.2

00x600 60 37.9

00x600 72 4 .1

00x600 75 46.9

00x600 5 53.7

XGA 1024x76 43.4 35.5

1024x76 60 4 .4

1024x76 70 56.5

1024x76 75 60.0

1024x76 5 6 .7

SXGA 12 0x1024 60 64

12 0x1024 75 0

12 0x1024 5 91.1

UXGA 1600x1200 60 75



a. Analog

b. Digital

Compatibility Resolution V-Sync [Hz] H-Sync [KHz]

VGA 640x4 0 60 31.5

640x4 0 72 37.9

640x4 0 75 37.5

640x4 0 5 43.3

700x400 70 31.5

700x400 5 37.9

SVGA 00x600 56 35.2

00x600 60 37.9

00x600 72 4 .1

00x600 75 46.9

00x600 5 53.7

XGA 1024x76 60 4 .4

1024x76 70 56.5

1024x76 75 60.0



H792-1

Chapter 2

Disassembly Procedure

Tools Needed

Screw Bit (+) : 107

Screw Bit (+) : 102

Hex Sleeves 5mm

Long Nose Nipper

Angle utting Nipper

Ball-end hex-key 3mm

H792-2

2-1 Removing Lamp Module

1. Unscrew one screw to remove the Lamp over.

Note : Be careful that Lamp over has the tenon inside.



2. Loosen 3 screws to remove Lamp Module.

Lamp over

Lamp Module

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