Optoma EP772 Service Manual
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Optoma EP772 Service Manual

Optoma EP772 Service Manual

Optoma dlp digital projector service manual
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Rev. 01

Service Manual

DLP Digital Projector
Model Name : EP772/TX775
Company Confidential
Optoma_______________________
Delta____________
1
2007/02/09

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Summary of Contents for Optoma EP772

  • Page 1: Service Manual

    Rev. 01 Service Manual DLP Digital Projector Model Name : EP772/TX775 Company Confidential Optoma_______________________ Delta____________ 2007/02/09...
  • Page 2 Rev. 01 Revision Description Date Preliminary 01/15/2007 Add the overscan rate (pg 50) 02/09/2007 Company Confidential Optoma_______________________ Delta____________ 2007/02/09...

  • Page 3: Table Of Contents

    Rev. 01 CONTENTS 1 . C O M P L I A N C E O F S A F E R E PA I R ............1 - 1 .

  • Page 4: Compliance Of Safe Repair

    Rev. 01 1. COMPLIANCE OF SAFE REPAIR Be sure to read this Service Manual before providing services. In the projector, full consideration is taken to ensure the safety for a fire, electric shock, injury, harmful radiation, and substance. Therefore, observe the notice described in this Service Manual so that the safety is kept when providing services.

  • Page 5: Specifications

    Rev. 01 2. SPECIFICATIONS 2-1. Summary Specifications Design Specification "TI" DMD, 0.7" x 1, 12∘, XGA Technology DDR DLP with DDP2000 Engine System Delta non-telecentric optical engine J4P Native XGA 1024x768 Native Resolution Up to SXGA 1280x 1024 @ 75 Hz <140MHz > Compatibility Typical 2100:1...
  • Page 6 Rev. 01 Keystone Correction +/- 15°(Angle from optical axis) H-Sync 15, 31~90KHz Frequency V-Sync 50 - 85 Hz VESA 640x480@60/72/75 Hz VESA 640x480@ 85Hz RGB Digital VESA 800x600@56/60/72/75/85Hz VESA 1024x768@ 60/70/75/85 Hz VESA 1280x1024@ 60Hz VESA 1024x768@85/75/72/70/60 Hz VESA 800x600@85/75/72/60/56 Hz RGB Analog VESA 640x480@85/75/72/60 Hz VESA 1280x1024@60 Hz...
  • Page 7 Rev. 01 Power Switch Voltage(auto-ranging) Typical @ 110Vac Standard mode 330W Power Supply & ECO Mode 290W Consumption Standby (watts) <5W Auto-Ranging Function Power Factor Correction Material Plastic Ceiling Mount Yes & with tripod mount Handle Yes, 1 at front center, 9 degree Adjustment Leg (-1~3 degree tilt adjustable at side) ID Design...
  • Page 8 Rev. 01 Data input -I DVI-I connector accept DVI-D signal Data input -II RGB HD-15 Video Composite Video (RCA x 1) S-Video S-Video (Mini DIN) INPUT Terminals Component Yes, thru RGB HD-15 HDMI Digital Video DVI-D + HDCP Audio input - I (RCA R& L) Audio input -II (Mini Jack) Yes (mini jack) OUTPUT...

  • Page 9: Input/Output Connectors

    Rev. 01 2-2 Input/output connectors EP772/TX775 RGB (Analog) HD-15 x1(I/P), HD-15 x1(O/P), DVI-D With HDCP Video (CVBS) Composite video (RCAx1) S-Video (Y/C) Mini-DIN Component Video VGA to Component thru (HD-15_RGB) Audio in (Video) Left/Right (RCA x2) Audio in (PC) Mini-phone jack (3.5mm) Audio out(PC) Mini-phone jack (3.5mm)

  • Page 10: D E S C R I P T I O N O F W I R E C O N N E C T I O

    (10 language: English, French, German, Spanish, Italian, Portuguese, Russian, Simplified Chinese, Traditional Chinese, Korean) with Gray/White full case color) 10.Carrying case with Optoma Logo 11. Lens cap (Emboss Eyes Warning label, Optoma's designed logo) 12. Warranty card 13.User’s Manual in 18 language ( English, French, German, Italian, Spanish, Portuguese,...
  • Page 11 Rev. 01 CABLE SIGNAL D-SUB D-SUB L2000 BLK (RGB CABLE 2m) P/N：3080425001 Company Confidential Optoma_______________________ Delta____________ 2007/02/09...
  • Page 12 Rev. 01 CABLE SIGNAL RCA RCA L1800 YEL (1.8m) P/N：3080301101 Company Confidential Optoma_______________________ Delta____________ 2007/02/09...

  • Page 13: Remote Control Keypad

    Rev. 01 2-4. Remote Control Keypad Remote Control Handset for EP772/TX775 Function Description Power Power on/off toggle Laser pointer trigger, press to emit Laser laser Up key for emulation of keyboard move Left Left key for emulation of keyboard move...

  • Page 14: C O N T R O L K E Y P A D A N D L E

    Rev. 01 2-5. Control Key Pad and LED LAMP LED POWER Name Usage Power LED Green: Power On Off : Power Off Blink : Error code Lamp Ready Orange: Lamp is ready to turn on/off Blink:Lamp not ready (warming up/shutting down & cooling) Power Lamp On/Off switch Source...

  • Page 15: B L O C K D I A G R A

    Rev. 01 2-6. Block Diagram OPTOMA EP772/TX775 Structure Diagram Company Confidential Optoma_______________________ Delta____________ 2007/02/09...

  • Page 16: T R O U B L E S H O O T I N

    Rev. 01 3. TROUBLE SHOOTING J4P serial By checking operations during normal usage time, it is possible to carry out judgments on malfunction to a certain Connect the power cord 1. Check cable of Power Supply Unit and thermostat Ass’y. POWER: Light 2.
  • Page 17 Rev. 01 Turn the power ON The lamp is ON POWER: Blinks 1.Check Thermal sensor1 Transistor ( Q702 ) malfunction. Ready: BLINKS 2.Check Thermal sensor IC ( U709 ) malfunction. Lamp does not light：lighting operation sound (ignition sound) exists. POWER: Blinks 1.
  • Page 18 Rev. 01 Image Projector logo screen 1. Check CW Sensor Board Ass’y malfunction. Confirmation with none-signal state 2. Check Main Board Ass’y malfunction. 1. Check Lamp deterioration (malfunction/usage time). 2. Check Power Supply Unit malfunction. Still dark after the (No change occurs even after lamp replacement.) 3.
  • Page 19 Rev. 01 Check the Projection Check using all black/white screens with PC connection 1. Check Black lines on screen (horizontal and vertical). → DMD Set malfunction. 2. Check Missing pixels (Missing white: 1 or more, missing black: 5 or more, or sequence missing pixels).

  • Page 20: D I S A S S E M B L Y A N D A S S E M B L

    Rev. 01 4. DISASSEMBLY AND ASSEMBLY Removing the Lamp Module and Lamp Cover Look at Top Case side Loose the two screws. Open the lamp cover Loose the two screws and then take out the lamp module by the ring-pull. Lamp module views.

  • Page 21: Removing The Top Cover

    Rev. 01 Removing the Top Cover Remove the two screws and take off the top case frame Remove these the eight screws. Loose the two screws. Then remove the top cover. Company Confidential Optoma_______________________ Delta____________ 2007/02/09...
  • Page 22 Rev. 01 Removing the KeyPad / Front Cover / Main Board Remove these the six screws. Remove these the six hexagonal bolts. Remove these the seven screws. Seven screws. Open the cover. Company Confidential Optoma_______________________ Delta____________ 2007/02/09...

  • Page 23: Removing The Main Board

    Rev. 01 Removing the Main Board Fan4 – CN802 Keypad – CN452 Power – CN900 SPK – CN704 Fan2 – CN801 LAMP – CN530 Fan1 – CN800 Fan3 – CN905 Remove tow screws and two nuts then Disconnect connectors. CW – CN650 INDEX –...
  • Page 24 Rev. 01 Disassemble the IO Board Disassemble the main board Remove the two screws. Remove the IO Board. Remove these the five screws. Check this place when you assemble the Remove the IO Case. cover. Company Confidential Optoma_______________________ Delta____________ 2007/02/09...
  • Page 25 Rev. 01 Disassemble the Ballast and Fan Assy. Check this place when you assemble the wire. Remove this screw. Remove this screw. Remove the Power Supply. The Power Supply. Remove these the three screws. Company Confidential Optoma_______________________ Delta____________ 2007/02/09...
  • Page 26 Rev. 01 Disassemble the Fan and Optic Engine Assy. Remove the Fan. The Fan Module and screws. Remove these the two screws. Take the heat-sink away. pull Remove these the three screws. Remove Optic Engine Assy. Company Confidential Optoma_______________________ Delta____________ 2007/02/09...
  • Page 27 Rev. 01 Disassemble the Optic Engine Assy and Power Assy . View Optic Engine Assy. View Optic Engine Assy. pull pull Remove Optic Engine Assy. Remove the two Fan Assy. Remove these the four screws. Check this screw when you assemble the wire. Company Confidential Optoma_______________________ Delta____________...

  • Page 28: P R O J E C T O R U S B D R I V E R S I N S T A L L A T I O N G U I D

    Rev. 01 5. Firmware 5-1 Projector USB Drivers Installation Guide Ver 5.0 System Requirement NOTE: The user must have administrative privileges on the target computer in order to IBM compatible PC. install your driver. The installation target directory must not write protected. Windows XP-SP2 Attention: This utility is for DDP2000/2030 series projector only.
  • Page 29 Rev. 01 The Installer copies the necessary files to PC. Press the <Finish> button with the Launch checkbox checked, the wizard will start the INF update. Launch the driver update Note: The INF update may take a while depends your computer speed and INF numbers…, Be patient! These windows will automatically close after the updating finished.
  • Page 30 Rev. 01 The install program copy the new INF into Windows directory, it will search the old INF and replace it with the newer one. Remove the USB cable between PC and projector if it is connected. The WinDrive USB drivers will be installed and registered to system.
  • Page 31 Rev. 01 Make sure the USB cable is firmly attached between projector and computer; the power switch is in ON position and projector is in STAND BY mode. <Down>, <Up>, <Right>, <Up> Press key in sequence on keypad (DP16/DP18/DP3622 series) or IR remote controller (DP02 series)。...
  • Page 32 Rev. 01 Windows completed the new hardware wizard. Press Finish to end the Wizard. Note: In case you got USB enumeration problem, the USB no longer recognize your projector! Please clear the USB items in the windows registry and install the Flashtool USB driver again. (Ref: Appendix-A) Once the Projector Control USB driver enumerated;...
  • Page 33 Rev. 01 The Windows New Hardware Wizard will launch again for the second USB Projector Control. (Select “No, not this time”; Press the Next) ( Windows XP-SP2) Follow the recommended options and process the driver installation. (Press the Next) Wizard copies the necessary files and updates the driver. Windows New Hardware Wizard launches for the Projector Flashtool USB device.
  • Page 34 Rev. 01 Follow the recommended options and process the driver installation. (Press the Next) Wizard copies the necessary files and updates the driver. Flashtool USB driver installed. Press Finish to end the Wizard. Congratulations! Power off the projector now, your driver has been checked and works for Flashtool.
  • Page 35 Rev. 01 Appendix-A How to clear the USB enumeration registry? Run “regedit” and select the following items HKEY_LOCAL_MACHINE->SYSTEM->CurrentControlSet->Enum->USB-> The DP3629 series VID_1501&Pid_3629xxx Press <Delete> and remove these registries. (You need the read/write privilege of the Windows registry to delete it. Select the item and click right mouse will lead you to the Permissions dialog for applying the security options) Company Confidential Optoma_______________________...
  • Page 36 Rev. 01 Appendix-B Projector USB status on Windows Device Manager The USB HID device will be installed automatically via Windows' USB hot-plug mechanism. The Projector Control will be dynamically installed after entering the maintenance mode (Hit key sequence as <down>, <up>, <right>, <up>); Projector Flashtool will be dynamically installed when starting the flash upgrading by Flashtool or FlashtoolBL utility.

  • Page 37: D L P P R O J E C T O R F L A S H - To O L ( F I R M W A R E ) U S E R G U I D

    Rev. 01 5-2 DLP Projector Flash-Tool (firmware) User Guide Ver 5.0 NOTE: The user must have administrative privileges on the target computer in order to install your driver. The installation target directory must not write protected. Attention: This utility is for DLP DDP2000/3020 series projector only. System Requirement: .
  • Page 38 Rev. 01 Flash-Tool User’s Guide (upgrading projector firmware) Step 1: Launch the “FlashTool.exe” from installed short-cut at Program > Digital Zoom Projector> Launch FlasTool.exe or click the “Lauch FlashTool.exe” shortcut icon on the desktop. Step 2: Following is the screen capture when there is no projector connected. Company Confidential Optoma_______________________ Delta____________...
  • Page 39 Rev. 01 Step 3: Make sure the USB cable is firmly attached between projector and computer; the power switch is in ON position (if the projector got hardware power switch) and projector is in STAND BY mode. <Down>, <Up>, <Right>, <Up> Press key in sequence on keypad (DP2601/2618/3618 series) or IR remote controller (DP3602 series)。...
  • Page 40 Rev. 01 Step 4-1:.The Flashtool will validate the signature of the binary image file for upgrading. The “Start” button will not enable if the binary image is not a valid projector firmware. The “Start” button Step 5: Press “Start” button to start flash the firmware into projector, the warning message box will appear to get your confirmation.
  • Page 41 Rev. 01 Caution: DO NOT install any USB driver when erasing or upgrading process started. Step 7: By the Flash technology, the old firmware needs to be erased first. Flash-Tool will automatically erase the old firmware before upgrading. Erasing status Caution: DO NOT install any USB driver when erasing or upgrading process started.

  • Page 42: D L P P R O J E C T O R F L A S H - To O L ( S P L A S H L O G O ) U S E R G U I D

    Rev. 01 Step 9: After the new firmware upgraded, the Flash-Tool will perform the final validation. The dialog showed checksum with verification message! Checksum verified Done! Power off the projector. Step 10: 5-3 DLP Projector Flash-Tool (splash logo) User Guide NOTE: The user must have administrative privileges on the target computer in order to install your driver.
  • Page 43 Rev. 01 Flash-Tool User’s Guide (upgrading projector logo) Step 1: Launch the “FlashTool.exe” from installed short-cut at Program > Digital Zoom Projector> Launch FlasTool.exe or click the “Lauch FlashTool.exe” shortcut icon on the desktop. Step 2: Following is the screen capture when there is no projector connected. Company Confidential Optoma_______________________ Delta____________...

  • Page 44: Projector Information

    Rev. 01 Step 3: Make sure the USB cable is firmly attached between projector and computer; the power switch is in ON position (if the projector got hardware power switch) and projector is in STAND BY mode. <Down>, <Up>, <Right>, <Up> Press key in sequence on keypad (DP2601/2618/3618 series) or IR remote controller (DP3602 series)。...
  • Page 45 Rev. 01 Step 4: Press “Choose” button and select either BMP or JPG in the “File of type” option. BMP/JPG selection Step 4-1: Double click the logo file or use open button to select the logo you want. Step 4-2:.The Flashtool will validate the size of the logo file. Logo will be converted to RLE format and stored to the projector’s flash memory.
  • Page 46 Rev. 01 Step 5: Press “Start” button to start flash the firmware into projector, the warning message box will appear to get your confirmation. Press <OK> to continue. Step 6: The last warning message box appears, this is the last chance to cancel the update, press “OK” button to start the logo change.
  • Page 47 Rev. 01 Erasing old logo Caution: DO NOT install any USB driver when erasing or upgrading process started Step 8: After old logo erased, the new logo upgrading process will start. Changing new logo Step 9: After the new logo changed, the Flash-Tool will perform the final validation. The dialog showed checksum with verification message! Checksum verified Done! Power off the projector.

  • Page 48: H O W U S E R C A N R E S E T L A M P H O U R

    Rev. 01 5-4 How user can reset lamp hours !! After replacing the lamp, you should reset the lamp hour counter to zero. Refer to the following: Press the Menu button to open the Main menu. Press the cursor button to move to the Status menu.

  • Page 49: C H E C K L A M P H O U R S I N F O R M A T I O N I N S E R V I C E M O D E ( J 4 P S E R I E

    Rev. 01 5-5 Check Lamp hours information in Service mode (J4P Series) Status Menu , select Lamp Hour Reset function ， and press “Enter” key on keypad or IR Step1 controller to go into Lamp Hours Reset sub-page。. In Lamp Hours Reset sub-page press “Enter”, Step2 “Enter”, “Up”...

  • Page 50: O V E R S C A N R A T

    Rev. 01 5-6 Overscan Rate Description: Enter the overscan rate menu. Overscan Rate Menu Company Confidential Optoma_______________________ Delta____________ 2007/02/09...
  • Page 51 Rev. 01 720p/1080i Use the Left and Right keys to adjust the Component Description: Video (720p and 1080i) overscan ratio. Steps Minimum Maximum Default value Others Use the Left and Right keys to adjust those overscan ratio except 720p/1080i (i.e. the SVideo, Composite Video, Description: Component Video 480i, 480p, 576i, 576p).

  • Page 52: D L P P R O J E C T O R S E C U R I T

    Rev. 01 5-7 DLP Projector security Use the Left and Right keys to enable or disable Description: security lock function. Steps Minimum Maximum Default value Enable Disable Disable The Password Menu will be displayed if the “Security Lock” enabled. The available keys for the password entry are <Up>, <Down>, <Left>, <Right>...
  • Page 53 Rev. 01 If Register Password is the same as Confirm Password, the password will be memorized. The password confirm menu appears when user press the power-on key in case the “Security Lock” function enabled. Only <Up>, <Down>, <Left>, <Right> and <Power> key are available. How to reset password: In case of lost of the password, please contact with the service-center.

  • Page 54: D L P P R O J E C T O R S E C U R I T Y U N L O C K ( O P T O M A E P 7 7 2 S E R I E

    Rev. 01 5-8 DLP Projector security unlock (Optoma EP772 series) Ver 1.0.2 The document is to describe a Windows application software “DLPunlock” for projector password unlock. Its main purpose is to provide a way to reset the forgotten password, the application will ship to the call-center and help the validated end-user to reset the password.
  • Page 55 Rev. 01 J4P security password reset flow-chart Company Confidential Optoma_______________________ Delta____________ 2007/02/09...
  • Page 56 Rev. 01 Projector OSD for password check & reset Password validates at power-on. Password input at power-on. Hint code appeared when wrong password input over 5 times. Company Confidential Optoma_______________________ Delta____________ 2007/02/09...

  • Page 57: H O W T O P R O G R A M B Y R

    Rev. 01 6. How To Program By RS232 Projection Display Serial Interface 6-1 RS232 Setting Baud rate: 9600 Parity check: None Data bit: Stop bit: Flow Control None Minimum delay for next command: 1ms 6-2 Control Command Structure The command is structured by the Header code, command code, data code and end code. Most of the commands are structured except some for the compatibility issue with other projectors.
  • Page 58 Rev. 01 * Power On command will not work for 1 minute after the power off command triggered. CR : Carriage Return. 6-5 Remote Command The remote commands simulate the code send from IR remote handset. Button’s name ASCII UP arrow ~ r U CR 7Eh 72h 55h 0Dh DOWN arrow...
  • Page 59 Rev. 01 6-6. Set Value Command ASCII ITEM ~ s B ? CR ※ Brightness 7Eh 73h 42h ?h 0Dh Contrast ~ s C ? CR 7Eh 73h 43h ?h 0Dh Color ~ s R ? CR 7Eh 73h 52h ?h 0Dh Tint ~ s N ? CR 7Eh 73h 4Eh ?h 0Dh...
  • Page 60 Rev. 01 6-7. Query Command ITEM ASCII Software Version ~ q V CR 7Eh 71h 56h 0Dh Power State ~ q P CR 7Eh 71h 50h 0Dh Input Select ~ q S CR 7Eh 71h 53h 0Dh Lamp Hours ~ q L CR 7Eh 71h 4Ch 0Dh Brightness ~ q B CR...
  • Page 61 Rev. 01 6-8. Hyper Terminal setting guide 6-8-1 Connect the RS232 Cable between your computer and Projector。 6-8-2 Open HyperTerminal ， Window2000/XP HyperTerminal path： Start \ Programs \ Accessories \ Communications \ HyperTerminal。 6-8-3 Setting the HyperTerminal parameter： Step 1. Type the connection name . Company Confidential Optoma_______________________ Delta____________...
  • Page 62 Rev. 01 Step2 . Choose the COM port for your RS232 Cable connected to. Step3. In Bits per second choose “ 9600 ” and in Flow control choose “ None ”。 Company Confidential Optoma_______________________ Delta____________ 2007/02/09...
  • Page 63 Rev. 01 Step4. Click the File and choose Properties to setting Keyboard parameter。 Step5. In Setting page , choose Emulation type for your keyboard. Step6. Click ASCII Setting icon to setup ASCII code parameter. Company Confidential Optoma_______________________ Delta____________ 2007/02/09...
  • Page 64 Rev. 01 Step7. Mark Send Line ends with line feeds and Echo typed characters locally and click OK bottom to complete setting. Company Confidential Optoma_______________________ Delta____________ 2007/02/09...

  • Page 65: C L E A N I N

    Rev. 01 7. SERVICE NOTE 7-1. Cleaning Carry out cleaning of the main unit and interior when replacing the lamp or making inspections. The glass cleaner used with the following parts is as follows. Product name : Kei-Dry Wiper 132-S (Kureshia Co., Ltd.) 1)Cleaning the Projection Lens *When dust and fingerprints, etc.

  • Page 66: R E M O T E C O N T R O L F O R B A T T E R Y R E P L A C E M E N

    Rev. 01 7-2. Remote control for battery replacement Company Confidential Optoma_______________________ Delta____________ 2007/02/09...

  • Page 67: P O W E R & R E A D Y L E D B L I N K C O D E M E S S A G

    Rev. 01 7-3. Power & READY LED Blink Code Message LED Flash Timing Example: ※ off… delay on off on off Flash the LED on / off 3 times ※ delay: LED Off delay about 1 second Power LED Ready LED Error code message Blink Blink...
  • Page 68 Rev. 01 7-4. Factory Preset Display Modes Company Confidential Optoma_______________________ Delta____________ 2007/02/09...
  • Page 69 Rev. 01 7-5. OPTOMA Splash LOGO screen Company Confidential Optoma_______________________ Delta____________ 2007/02/09...

  • Page 70: F A C T O R Y P R E S E T D I S P L A Y M O D E

    Rev. 01 7-6.Spare parts list 1. EP772 Spare part list TYPE NO DESCRIPTION MODEL Q'ty DP-3629 KOTEC WHITE 3398032805 /KOTDC CASE TOP ASSEMBLY DP-3629 KOTCG/ Cover (TOP CASE) KOTDG/ KOTFG/ GRAY 3398033104 KOTEG/ KOTIG/ KOTZG DP-3629 KOTEC WHITE 3398032602 /KOTDC...

  • Page 71: Carton

    Rev. 01 Lamp 15 LAMP MODULE ASSEMBLY DP-3629 260W DP-3629 XXXXX 5811100038-SO module Carton 16 CARTON PAPER 434*378*258 DP-3629 XXXXX 3517129701 SPEAKER ASSEMBLY Speaker DP-3629 XXXXX 3791001806 (8 0hm 3W 290mm Wire, 51mm*40.6mm*25mm) KEYPAD BOARD ASSEMBLY Keypad DP-3629 XXXXX 5600600271 (112mm x 65mm x 1.2mm FR-4 ) Accessories TYPE NO...

  • Page 72: Spare Part List

    Rev. 01 2. TX775 Spare part list MODEL TYPE NO DESCRIPTION Q'ty CASE TOP ASSEMBLY Cover DP-3629 KOTCH 3398033104 (TOP CASE) CASE BOTTOM ASSEMBLY Cover DP-3629 KOTCH 3398033201 (BOTTOM CASE) CASE BACK ASSEMBLY Cover DP-3629 KOTCH 3398033000 (BACK CASE) LAMP COVER PC+ABS 94V0 GRAY Cover DP-3629 KOTCH 3392040301...
  • Page 73 Rev. 01 Company Confidential Optoma_______________________ Delta____________ 2007/02/09...
  • Page 74 Rev. 01 Company Confidential Optoma_______________________ Delta____________ 2007/02/09...

  • Page 75: C A R T O

    Rev. 01 7-7. Carton Company Confidential Optoma_______________________ Delta____________ 2007/02/09...

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Tx775

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