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Optoma H76, Service Manual

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This manual is applied to H76 TI 0.79” DMD / 12deg / 1280x720 / WXGA Home Theater Projector
with digital imaging functionality based on Digital Micro-mirror Device (DMD) technology.  It’s the
mode of single Panel, 250 watt Philips UHP lamp and 1280(H) x 720(V) 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.

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.

Copyright 2003, July

All Rights Reserved

Manual Version 1.0

Document  # 866-G04-01A

Preface

H76

I

Summary of Contents for H76

Page 1: ... s I l a i t i n I Prepared by SI ________________________________________ Prepared by TSE ________________________________________ Check by ________________________________________ Approved by ________________________________________ Copyright July 2003 All Rights Reserved Document 866 G04 01A P N 36 86604 001 ...

Page 2: ... 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 NOTICE The information found in th...

Page 3: ...bleshooting 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 Test Display Modes Pattern 4 2 Inspection Procedure 4 6 Chapter 5 Firmware Upgrade Procedure 5 1 Equipment Needed 5 1 Setup Procedure 5 2 Firmware Upgrade Procedure 5 3 Chapter 6 DDC Key in Procedure 6 1 Equipment Needed 6 1 Setup Procedure 6...

Page 4: ...cover Power focus projection and power zoom lens 1 35X RGB color wheel spinning at 120Hz TBD Computer capability up to UXGA 60Hz for Analog SXGA 60Hz for Digital Inputs 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 Image Auto tracking frequency position adjustm...

Page 5: ...lor Ivory white or ebony black Lamp Door Protection Lamp Power Supply shut off automatically when door open 1 3 Electrical Specifications Power Supply Universal AC 90 264V 50 60 Hz with PFC input 250W for Philips UHP Lamp normal operation Input signal spec Hsync Frequency 31 5 100 kHz Vsync Frequency 43 85 Hz Video Signal RGB PC Analog RGB 0 7Vp p 75 ohm Analog RGB 1Vp p 75 ohm Sync Signal Separat...

Page 6: ... I 7 3 9 3 8 2 3 m 0 1 3 2 8 2 5 3 2 m 2 7 0 1 9 0 2 4 7 1 m 3 5 0 6 0 9 5 2 9 4 m 5 1 5 3 2 4 3 5 3 m 8 0 1 7 3 1 3 1 6 2 m 0 8 0 4 7 8 7 6 5 6 m 0 2 6 4 6 5 1 7 4 m 3 4 1 3 8 1 4 9 4 3 m 6 0 1 5 8 6 9 1 4 6 1 m 0 5 6 1 1 4 1 6 7 1 1 m 9 5 3 6 5 4 0 1 1 7 8 m 7 6 2 7 3 9 3 1 8 2 3 m 0 0 1 2 3 2 8 2 3 5 3 2 m 7 1 7 3 1 9 0 2 3 4 7 1 m 1 3 5 1 5 Environmental Temperature Operating 5 C 35 C Storage ...

Page 7: ...H76 2 1 Chapter 2 Disassembly Procedure 2 1 Disassemble Lamp Module 1 Unscrew 1 screw to remove Lamp Cover from inside to outside then pull it up 2 Loosen 3 screws to remove Lamp Module 1 2 ...

Page 8: ...e 8 screws from the bottom for the top cover Remove the FFC cable when you pull up the top cover 2 2 Disassemble Top Cover 2 Remove 2 screws from the Top Cover 3 Remove 4 hex screws and then take off I O Panel 1 2 3 1 ...

Page 9: ...e FFC cable 42 85801 001 from Keypad to M B 7 Remove 4 screws 85 1A623 060 from Thermal Board and remove 9 hex screws 61 86627 001 and 9 springs 61 87208 001 from Main Board 8 Remove 4 Flat screws 85 4A323 050 from Lamp Housing Holder 51 86604 001 ...

Page 10: ...H76 2 4 10 Remove 2 screws 85 1A623 060 11 Remove 4 screws 85 1A623 060 9 Unplug 9 wires from Thermal Board To Axial Fan 3 Pin white CNNT To Photo Sensor 3 Pin white CNNT ...

Page 11: ...d PC Personal Computer Video Input Screw Drivers 3 2 Main Procedure Connect Power cord analog or digital signal then turn power on Start Is Image OK B Image Performance Troubleshooting C Function Troubleshooting Yes Is Lamp light on A Power Troubleshooting Yes Yes Is function OK No No No Continue ...

Page 12: ...he function error as follows 1 Turn on the power and push down the Power LED button appear Power LED signal but lamp can t light up Cause Projector over heat 2 Turn on the power and Temp signal is flicker Cause Thermal Sensor detect the projector is over heat 3 Temp and Power LED signal are flicker Cause Thermal error or Fan failed 4 Lamp and Power LED signal are flicker Cause Lamp NG ...

Page 13: ... Lamp Cover Start End Supply Power Source Is Fan working No Yes No No Yes Yes Change Power Supply Module Change Front End Board Yes No Is Lamp lit No Change Thermal Board Change Fan Module No Change Lamp Ballast Change Front End Board No Yes No Fault Found Can hear the sound of lamp turn on Da Da Da No No Yes Change Lamp Module ...

Page 14: ...oard No Change DMD Module Yes No Change DMD Module No Change Engine Module Change Front End Board No Change DMD Module No Optical Engine Yes Change DMD Module Yes Adjust frequency Yes No Yes Yes No No No Color Adjust Procedure Note 1 Have noise Yes Adjust tracking No End No Change Front End Board No Change Front End Board No Change DMD Module No Change Front End Board No Fault Found ...

Page 15: ...hooting Does OSD show up Start Is KeyPad Board OK No Yes Is Remote Controller OK Yes Change Front End Board Change Key Pad Board Can function be adjusted Change Front End Board No Yes Yes No End No Fault Found Change Remote Control No ...

Page 16: ...H76 3 6 3 2 4 E Remote Control Troubleshooting Start End Does the Remote Function work No Replace the battery Yes No Change Remote Control No Change Front End Board Yes Yes ...

Page 17: ... diagonal wide Before function test and alignment each H76 should be run in and warmed up for at least 30 minutes with following conditions 1 In room temperature 2 With cycled display colors R G B White 3 With cycled display modes 640 350 H 31 5 KHz V 70 Hz 640 400 H 37 9 KHz V 85 Hz 640 480 H 37 9 KHz V 72 Hz 720 400 H 31 5 KHz V 70 Hz 800 600 H 53 7 KHz V 85 Hz 800 600 H 37 9 KHz V 60 Hz 1024 76...

Page 18: ... A G V S 0 0 6 0 0 8 6 5 2 5 3 A G V S 0 0 6 0 0 8 0 6 9 7 3 A G V S 0 0 6 0 0 8 2 7 1 8 4 A G V S 0 0 6 0 0 8 5 7 9 6 4 A G V S 0 0 6 0 0 8 5 8 7 3 5 A G X 8 6 7 4 2 0 1 4 3 4 5 5 3 A G X 8 6 7 4 2 0 1 0 6 4 8 4 A G X 8 6 7 4 2 0 1 0 7 5 6 5 A G X 8 6 7 4 2 0 1 5 7 0 0 6 A G X 8 6 7 4 2 0 1 5 8 7 8 6 A G X W 0 2 7 0 8 2 1 0 6 A G X S 4 2 0 1 0 8 2 1 0 6 4 6 A G X S 4 2 0 1 0 8 2 1 5 7 0 8 A G X S...

Page 19: ...e R z H c n y S V z H K c n y S H A G V 0 5 3 0 4 6 0 7 5 1 3 A G V 0 5 3 0 4 6 5 8 9 7 3 A G V 0 0 4 0 4 6 0 7 5 1 3 A G V 0 0 4 0 4 6 5 8 9 7 3 A G V 0 8 4 0 4 6 0 6 5 1 3 A G V 0 8 4 0 4 6 2 7 9 7 3 A G V 0 8 4 0 4 6 5 7 5 7 3 A G V 0 8 4 0 4 6 5 8 3 3 4 A G V 0 0 4 0 2 7 0 7 5 1 3 A G V 0 0 4 0 2 7 5 8 9 7 3 A G V S 0 0 6 0 0 8 6 5 2 5 3 A G V S 0 0 6 0 0 8 0 6 9 7 3 A G V S 0 0 6 0 0 8 2 7 1 ...

Page 20: ...r u g 6 3 4 y t i m r o f i n U n e e r c S r e k c i l F e t i h W l l u F c e p s e h t h t i w t n a i l p m o c e b d l u o h S Fi e r u g 6 5 l e x i P h s i m e l B d a e D e t i h W B G R 0 8 1 e u l B k r a D 0 3 y a r G d l u o h s s l e x i p h s i m e l b d a e d f o s r e b m u n e h T c e p s e h t h t i w t n a i l p m o c e b e r u g i F 9 3 6 y r a d n u o B e m a r F y r a d n u o...

Page 21: ...H76 4 5 B Color Pattern Figure 5 Full White Pattern Figure 6 Blue 180 Pattern Figure 9 Boundary Frame Figure 10 Dark Pattern Figure 7 Gary 30 Pattern Figure 8 ...

Page 22: ... is well performed If not readjust by following steps 1 Enter Digital Conversion menu and select Clock Function to adjust the total pixel number of pixel clock in one line period 2 Then select Clock Phase Function and use right or left arrow key to adjust the value to minimize video flicker R G B and White Colors Contrast Test Signal 1024 768 85Hz Test Pattern 64 or 16 R G B and White colors Inten...

Page 23: ...4 74 55Hz 6 1024 768 43 48 60 00 70 00 75 03 85 00Hz Normally when the primary mode 1024 768 85Hz is well adjusted and complaint with the specification then the secondary display modes will be great possibility to be complaint with the specification But we still have to check with general test pattern to make sure every secondary modes is complaint with specification Factory Reset After final QC s...

Page 24: ... Procedure 5 1 Equipment Needed Software FlashUpgrader EXE pwSDK inf Bootcode hex Flasher hex Gui hex Config hex RomCode hex Hardware Fixture H76 Projector RS 232 to RS 232 9 Pin female connector cable Pin Assignment I O 2 3 5 PC 3 2 5 ...

Page 25: ...H76 5 2 5 2 Setup Procedure 1 The 9 pins female RS 232 to RS 232 cable connect to the COM port of PC and H76 2 Connect RS 232 to fixture to COM1 of PC and H76 ...

Page 26: ...H76 5 3 5 3 Firmware Upgrade Procedure 1 Execute FlashUpgrader exe 2 The window of FlashUpgrader shows up Click Choose to get the file directory and change Baud Rate to 115200 115200 ...

Page 27: ... 4 3 Select pwSDK inf file and open it 4 Select the serial port which is connected with the unit Select baud rate to 115200 don t use other baud rate 5 Click Flash button to start the firmware upgrade 115200 ...

Page 28: ...o 10 7 H76 is under upgrading Firmware as follows Download the file RomCode hex 8 H76 is under upgrading Firmware as follows Download the file configdata hex 9 After all files are downloaded the unit will start up automatically and firmware upgrade is finished 115200 115200 ...

Page 29: ...H76 6 1 Chapter 6 DDC Key in Procedure Hardware Fixture PC VGA Cable Power Cord Power Adapter RS 232 Cable H76 Unit DDC Driver 6 1 Equipment Needed ...

Page 30: ...is open 3 Connect P1 of the fixture with COM1 port of PC by RS 232 cable Figure 1 4 Connect P2 of the fixture with VGA port of H76 by the VGA cable Figure 1 5 Connect P3 of fixture with DVI port of H76 by the DFP to DVI cable 6 Turn on the power of the fixture Figure 1 Fixture P3 P2 Power Adapter Power Switch P1 ...

Page 31: ...H76 6 3 6 3 DDC Key in Procedure 1 Turn on H76 and run DDC program in the PC 2 Make sure link is OK or not H76 H76 H76 H76 ...

Page 32: ...H76 6 4 3 Key in S N into the blank beside Bar Code then press Enter key on keyboard begin programming 4 After finishing the above action PASS massage will appear on the Screen H76 H76 ...

Page 33: ...cation 1 110V 2 220V 0 universal B BIOS version E PCB board version M Mechanical version O Optical version Serial code from 0001 EX A866329T0AAAA1001 This label A866329T0AAAA1001 represents the whole serial number for H76 including Ver 1st of BIOS and Ver 1 of PCB Board Both mechanical and optical version are 1st In addition panel vendor is T1 It s produced on 29 week of 2003 for universal area an...

Page 34: ...F 3 t i n U t n e l l e c x E d o o G r i a F d a B n o i t c u d o r t n I 1 y l b m e s s a s i D f o e r u d e c o r P 2 g n i t o o h s e l b u o r T 3 e r u d e c o r P t n e m n g i l A t s e T n o i t c n u F 4 e r u d e c o r P g n i d a r g p U e r a w m r i F 5 e r u d e c o r P n I y e K C D D 6 x i d n e p p A 7 B Are you satisfied with the H76 service manual C Do you have any other op...

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