Related Manuals for Optoma GT750
Summary of Contents for Optoma GT750
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Page 1: Service Manual
SERVICE MANUAL GT750 Date Revise Version Description 2011.08.01 V1.0 Initial Issue Prepare : Check: Approve: Mina... - Page 2 Preface This manual is applied to GT750 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.
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Page 3: Table Of Contents
Main Procedure Chapter 4 Function Test & Alignment Procedure Test Equipment Needed Test Condition I/O Port Test Run In Test Test Inspection Procedure ADC Calibration 4-10 Restore Blower Speed 4-11 Chapter 5 Firmware Upgrade Section 1: System Firmware Upgrade GT750 Confidential... - Page 4 Check 8051 FW version Section 3: MST8535 Firmware FW Upgrade Procedure Equipment Needed USB Driver Upgrade Procedure MST8535 Firmware Upgrade Procedure Chapter 6 EDID Upgrade EDID Upgrade Procedure Appendix A Exploded Image Appendix B Serial Number Definition PCBA Code Definition GT750 Confidential...
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Page 5: Chapter 1 Introduction
�spect ratio ● �:��� 1�:9�� 1�:1��� Native�� �uto 1� Lamp ● 2�� � O�R�M Lamp E2��� elliptic ● � �egments; R�BY�; Filter Diameter �� mm Color �heel ● R�1���B71C�1Y�1��2 ● 2x�� 72�� RPM 1� �ystem Controller ● DDP2��1 GT750 Confidential... -
Page 6: Compatible Mode
��� x ��� �7 V�� ��� x ��� �7�9 72�� ��� x ��� �7�� ��� x ��� ���2 ���� ��� x ��� �7�9 ���� ��� x ��� ���9 �V�� ��� x ��� ���1 72�2 ��� x ��� ��2 x �2� Confidential GT750... - Page 7 12�� x 72�p 12�� x 72�p �� 72� x �7�i 72� x �7�p �DTV 72� x ���i �� 72� x ���p �� Note: If the Computer Compatibility supportive signal is different from User's Manual, please refer to User's Manual. 1-� Confidential GT750...
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Page 8: Disassembly Process
* 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 record the lamp usage hour. - Some related contents please refer to common SM chapter 2. GT750 Confidential... -
Page 9: Repair Notice
System Fan Wire (3 pin) Compose of Red/Black/White Photo Sensor Wire and Black wire tube (3 pin) Compose of Black/Yellow/Red Blower Wire and Blue wire tube (3 pin) Compose of Black/Yellow/Red Wire and Gray wire tube (3 pin) GT750 Confidential... -
Page 10: Rod Adjustment
- It should not have any abnormal color at the rim of the image by estimating through the eyes. Note: - To avoid over adjusting the rod. - After the operation, please use the glue to fix the screws. GT750 Confidential... -
Page 11: Re-Write Lamp Usage Hour
"Lamp Hours (Normal)". 4. Exit Service Mode - Use "up" or "down" buttons to select "Exit", then press "Enter" to exit the Service Mode. Note: left key = decrease lamp hour right key =increase lamp hour GT750 Confidential... -
Page 12: Repair Action
5-section 1 Color Wheel Chapter Index --.7 OSD Reset Chapter -5.2 Video Chapter Calibration Chapter Calibration EDID Chapter 6 Re-write Lamp Chapter 2-4 Hours Usage Video chapter4-3-3 Performance Restore Blower Chapter 4-7 Speed Optical Chapter Performance -- Measure GT750 Confidential... -
Page 13: Led Lighting Message
Power on (Warming) (Green) Power on and Lamp lighting (Green) Flashing Power off (Cooling) (Green) Error Flashing (Lamp failed) (Red) (Red) Error Flashing Flashing (Fan failed) (Red) (Red) Error Flashing (Over Temp.) (Red) (Red) Note: Steady light No light GT750 Confidential... -
Page 14: Main Procedure
PC can support 3D format. - Ensure your standing distance is less than 6m from screen. 3D Image Abnormal - Ensure the 3D function is on and execute “3D sync invert” in OSD menu. - Check main board. GT750 Confidential... -
Page 15: Function Test & Alignment Procedure
- Quantum Data 802B or CHROMA2327 (Color Video Signal & Pattern Generator) 4-2 Test Condition Circumstance brightness: Dark room less than 2 lux. - Product must be warmed up for 3 minutes. - Screen size: 60 inches diagonal. Zone Definition < Figure: Zone A(as green line) Definition > Confidential GT750... -
Page 16: Vga Port Test
4-3 I/O Port Test 4-3-1 VGA Port Test Note:GT750 the native resolution of test signal is 1280x800@60HZ. 1. Frequency and tracking boundary Procedure - Test equipment: video generator. - Test signal: analog 1280x800�60Hz 1280x800�60Hz �60Hz - Test Pattern: general-1 or master... - Page 17 - Test equipment: video generator. - Test signal: analog 1280x800�60Hz - Test Pattern: blue 60 Inspection item - Dark blemish check Criteria - The bright blemish should be no more than 4 under blue 60 pattern. - Blue 60 Confidential GT750...
- Page 18 Inspection item - Check if each color level is well-functioned. - Color saturation Criteria - Screen appears normal. It should not have any abnormal condition, such as lines appear on the screen and so on. - Color appears normal. Confidential GT750...
- Page 19 - Test equipment:Select “Spoke Test” b. Brightness Procedure - Full white pattern - Use CL100 to measure brightness values of P1~P9. - Follow the brightness formula to calculate brightness values. Full white pattern ☼ Brightness Formula Avg. (P1~P9)*1.1m Confidential GT750...
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Page 20: Composite Port And Audio Test
Motion video Inspection Distance - 0.46M ~0.56M Criteria - Check the sound from speaker - Plug Audio cable into Audio in port, check whether “Volume” is normal. - Adjust the volume to “0→ 9” by using the remote controller. Confidential GT750... -
Page 21: Video Port Test
- Test signal: 720p, 1080p, 1080i Inspection item - HDMI performance test. Inspection Distance - 0.46 M ~0.56 M. Criteria - Ensure the image is well performed and the color can not discolor. - Check whether "mute" is normal. Confidential GT750... -
Page 22: Run In Test
* Cycle setting is based on the defect symptoms. ie: If it is NFF, the run-in time is 4 hours. You have to set the lamp on for 50 min. and lamp off for 10 min for 4 cycles. Confidential GT750... -
Page 23: Test Inspection Procedure
After final QC step, we have to erase all saved change again and restore the OSD default setting. The following actions will allow you to erase all end-users' settings and restore the default setting: (1) Please enter OSD menu. (2) Choose "Option" and then execute "Reset" function Confidential GT750... -
Page 24: Adc Calibration
Adjustment”, and choose “Video Calibration”. Inspection item - Color saturations Criteria - There should not have any lack of SMPTE BAR.Color levels should be sufficient and normal. - There is not any abnormal lines on the image. Confidential GT750 4-0... -
Page 25: Restore Blower Speed
“Blower Factory RPM” (as Picture A shown). Note: - If the Factory FAN RPM Value doesn’t show in service mode, please repeat the step again. - Make sure the “ Blower Factory RPM” is 3500-6600. Picture A Confidential GT750 4-... -
Page 26: Firmware Upgrade
Note1: we will show the hot key of service mode and how to check FW version,the other contents please refer to common service manual 5-1 . Note2: During FW upgrade procedure,please select "32KB" in "Skip Boot Loader Area". GT750 Confidential... -
Page 27: Get Into Fw Mode
Note: - The system fan and the lamp will not operate. 5-1-3 Check FW version 1.Power on the projector and get into the Service Mode (Press Power --> Left --> Left --> Menu). 2.The firmware version will be shown as red circle on the screen. GT750 Confidential... -
Page 28: Section 2: 8051 Fw Upgrade (Usb)
Section 2: 8051 FW Upgrade 5-2-1 Equipment Needed Software: (N79A901R-USB) - Setup _NLINK_en - Manley USB Driver_NLINK - xxx_8051_xx.hex Hardware: - Projector - Power cord: 42.50115G001 - USB Cable mini USB to USB (A) (42.00284G001) - NLINK Fixture - PC or Laptop GT750 Confidential... -
Page 29: 8051 Firmware Upgrade Procedure
- Select “Brownout Level 3.8V” (as green square). - Select “Internel RC(11.0592MHz)” (as green square). - Click “Erase/Write(W)” to execute 8051 FW upgrade (as red circle). Note: Another contents please refer to common service manual 5-Section 4. GT750 Confidential... -
Page 30: Check 8051 Fw Version
5-2-3 Check 8051 FW version 1.Power on the projector and get into the Service Mode (Press Power --> Left --> Left --> Menu). 2. The firmware version will be shown as red circle on the screen. GT750 Confidential... -
Page 31: Section 3: Mst8535 Firmware Fw Upgrade Procedure
Section 3: MST8535 Firmware FW Upgrade Procedure 5-3-1 Equipment Needed Software : - GT750 MST8535 FW file(.BIN) - Debug Board Driver - ISP_Tool V4.4.9.0.exe Hardware : - Projector (GT750) - Debug Board (75.8GA01GR01) - USB cable (42.00281G102) - VGA Cable (42.00200G004) -
Page 32: Usb Driver Upgrade Procedure
(3) Press "power button" and power on the projector. 2. Execute Program (1) "Found New Hardware Wiszard" picture will appear on the screen. (2) Select "Install from a list or specific location (Advanced)". (3) Click "Next". GT750 Confidential... - Page 33 (5) "Browse For Folder" picture will appear on the screen. (6) Select "FTC100103(MSTAR)" folder, then click "OK". (7) Click "Finish". Note: If the PC appear "Found New Hardware Wiszard" picture again, repeat step 2 to install USB Drivier once more. GT750 Confidential...
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Page 34: Mst8535 Firmware Upgrade Procedure
--> Left--> Menu),then select ”MST Download ON”. (2) Unzip the "FTC100103(MSTAR).zip" and double click "ISP_Tool_4_4_9_5.exe". (3) Choose "Config" icon,then do the settings as right picture show. (4) Choose "Connect" icon,then a small window will show "Device Type is Win25Q16"and click "OK". GT750 Confidential... - Page 35 Finish",the green character "Pass" will show. Start Download (7) After firmware upgrade, enter the Service Mode (Press Power --> Left --> Left--> Download Finish Menu),then the firmware version will be Download Setting shown as red circle on the screen. GT750 Confidential 5-0...
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Page 36: Edid Upgrade
6-1 EDID Upgrade Procedure - The upgrade procedure for VGA and HDMI ports please refer to common service manual chapter 6. - Please use " EDID 0.81.exe" Program and Key in the serial number into the "Unit No" blank space. GT750 Confidential... -
Page 37: Appendix A Exploded Image
Appendix A (Exploded Image) Note: This chapter is only designed to show the exploded image of the projector. For updated part numbers, please refer to RSPL report. D.C. GT750 Confidential... - Page 38 ASSY BOTTOM HOUSING MODULE GT750 70.8MY01G001 ASSY OPTICAL ENGINE MODULE GT750 70.8MY05G001 MAIN BOARD ASSEMBLY GT750 70.8MY09G001 ASSY TOP COVER AND ZOOM RING GT750 51.8HA01G011 FOCUS RING EW533ST BLACK 70.8EF45GR01 ASSY LAMP COVER BLACK EX615 (SERVICE) 51.8EG03G111 LAMP COVER BLACK EX615(LGSM) LOCK SCREW PAN MECH M3*8.5-3.5...
- Page 39 Assy TOP COVER MODULE Parts Item Description Supply 75.8EG01G143 TOP COVER ASSEMBLY EW533ST BLACK(LGSM) 51.8EG14G111 KEYPAD PLATE ENTER EX612(LGSM) 80.8MY03G001 PCBA KEYPAD BD FOR GT750 WXGA PROJECTOR 85.1A123G050 SCREW PAN MECH M3*5 Ni GT750 Confidential...
- Page 40 ASSY BOTTOM COVER MODULE GT750 Confidential...
- Page 41 DRIVER FOR EX612 85.1F123G060 SCREW PAN MECH W/SF M3*6 Ni GREEN CABLE W.A. 2P #20 160mm LAPS TO BALLAST 42.81G01G001 PD120 51.8EF12G001 FRONT LIGHT CLOSE 5W SPEAKER 51.8GZ01G001 AIR STOP MYLAR ES523ST 51.8EF08G001 LIGHT LEAK MYLAR HEATSINK EX615 GT750 Confidential...
- Page 42 ASSY MAIN BOARD AND IO BOARD MODULE GT750 Confidential...
- Page 43 Item Description Parts Supply 70.8MY06G001 ASSY MAIN BOARD AND IO BOARD GT750 85.1A123G050 SCREW PAN MECH M3*5 Ni 61.8EG02G041 MAIN BOARD SHIELDING ES523ST ASSY IO COVER MODULE 8MY BLACK (SER- 70.8MY20GR01 VICE) ADUIO I/O PORT EMI GASKET W13*H3*L13mm 41.8MY02G001 diameter 6.5mm EMI GASKET (S-VIDEO &...
- Page 44 ASSY MAIN BOARD MODULE Item Description Parts Supply PCBA MAIN BOARD FOR GT750 WXGA PRO- 80.8MY01G001 JECTOR PCBA DAUGHTER BD FOR GT750 WXGA PRO- 80.8MY06G001 JECTOR GT750 Confidential VIII...
- Page 45 ASSY OPTICAL ENGINE MODULE GT750 Confidential...
- Page 46 YO CONDENSER 2 FOR A15W 61.8FF01G001 ROD COVER FOR EW536 61.88N12G021 ROD SPRING SUS301 3/4H,X15 85.WA321G040 SCREW PAN TAP M1.7*4 BLACK 85.00823G080 HEX SCREW M3*H8*L5.3,BRASS 41.83C01G001 EMI GASKET W13*H15*L40 41.8BV01G001 EMI GASKET W6*H13*L40 61.8CP02H002 DMD HEATSINK AL-ALLOY Z15 X1161 GT750 Confidential...
- Page 47 PCBA PHOTO SENSOR BOARD FOR EW762 PRO- 80.8LM04G001 JECTOR 23.8EF19G001 YO 6S R81Y41G84C31W52B71_HE3 CW 85.1A526G060 SCREW PAN MECH M2.6*6 Ni NYLOK TAPE 3M J350 10*5mm FOR COLOR WHEEL 51.82Y29G001 DP715 52.83615G001 COLOR WHEEL DISC RUBBER, EzPro755 61.83628G001 COLOR WHEEL SHOULDER SCREW,EzPro755 GT750 Confidential...
- Page 48 ASSY BlOWER MODULE Item Description Parts Supply SUNON 45*20mm GB1245PKVX-8 F-TYPE 49.8EF04G001 BLOWER 52.89T01G001 BLOWER AIR TIGHT F12 H5350 52.82G08G001 BLOWER 4520 RUBBER EP7190 GT750 Confidential...
- Page 49 PAN SCREW M3*8 FOR YM-64 FRONT CELL&SP 85.1A123G060 SCREW PAN MECH M3*6 NI THERMAL SWITCH WITH BRACKET (KLIXON 43.8EG17G001 YS11) HD20 100C 85.1A123G040 SCREW PAN MECH M3*4 Ni 51.81540G001 TAPE 3M J350 17*60mm 41.8EF01G001 EMI GASKET W5*H4*L80m GT750 Confidential XIII...
- Page 50 A.K. GT750 Confidential...
- Page 51 Parts Item Description Supply 55.8MY01G001 CARTON OUTSIDE BOX AB FLUTE GT750 USA 55.8EG02G001 PARTITION PAPER RIGHT HD20 55.8EG03G001 PARTITION PAPER LEFT HD20 75.8HA01G011 LENS CAP ASSEMBLY EW533ST BLACK DC.8EF01G001 D.C. EX615 35.86301G001 SPEC LABEL BLANK PD120 PE BAG ZIPPER 33cm*25cm SIZE GREEN FOR 51.00027G003...
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Page 52: Serial Number Definition I
= 15) AAAAA = not-defined C = Manufacture factory (CPC) 0001 = Serial Code EX: Q8MY115AAAAAC0001 This label "Q8MY115AAAAAC0001" represents the serial number for GT750. It is produced at CPC on fifteenth of 2011. Its serial code is 0001. GT750 Confidential... -
Page 53: Pcba Code Definition
II. PCBA Code Definition PCBA Code for Projector XXXXXXXXXX EEEE Vendor Code Revision Date Code GT750 Confidential...
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