User manual OPTOMA EP721I

Table of Contents Table of Contents ................................................................................... Usage Notice .......................................................................................... 2 Safety Information .........................................................................................2 Precautions....................................................................................................3 Eye Safety Warnings .....................................................................................5 Product Features ...........................................................................................6 Package Overview.........................................................................................7 Product Overview ..........................................................................................8 Introduction............................................................................................. 6 Installation ............................................................................................ 2 Connecting the Projector .............................................................................2 Connect to Computer/Notebook .......................................................................... 2 Connect to Video Sources ................................................................................... 3 Powering On the Projector ................................................................................... 4 Powering Off the projector ................................................................................... 5 Warning Indicator ................................................................................................. 5 Adjusting the Projector's Height ........................................................................... 6 Adjusting the Projector's Zoom / Focus ............................................................... 7 Adjusting Projected Image Size ........................................................................... 7 Main Unit ................................................................................................................ 8 Control Panel ......................................................................................................... 9 Connection Ports ................................................................................................. 0 Remote Control .................................................................................................... Powering On/Off the Projector.....................................................................4 Adjusting the Projected Image.....................................................................6 User Controls ....................................................................................... 8 Control Panel & Remote Control .................................................................8 On-screen Display Menus ...........................................................................2 How to operate .................................................................................................... 2 Menu Tree ............................................................................................................ 22 Image ................................................................................................................... 23 Display ................................................................................................................. 28 Setup.................................................................................................................... 3 Options................................................................................................................. 37 Appendices........................................................................................... 4 Troubleshooting ...........................................................................................4 Replacing the Lamp.....................................................................................47 Compatibility Modes ....................................................................................49 RS232 Commands ......................................................................................50 Ceiling Mount Installation ............................................................................53 Optoma Global Offices ................................................................................54 Regulation & Safety notices ........................................................................56 Image Problems .................................................................................................. 4 Intermission Problems ........................................................................................ 44 Projector Status Indication .................................................................................. 44 Remote Control Problems ................................................................................... 46 English Usage Notice Safety Informations The lightning flash with arrow head within an equilateral triangle is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert the user to the presence of import operating and maintenance (servicing) instructions in the literature accompanying the appliance. Class B emissions limits WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THE PROJECTOR TO RAIN OR MOISTURE. DANGEROUS HIGH VOLTAGES ARE PRESENT INSIDE THE ENCLOSURE. DO NOT OPEN THE CABINET. REFER SERVICING TO QUALIFIED PERSONNEL ONLY. This Class B digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations. 1. Read these instructions ­before using this projector. 2. Keep these instructions ­for future reference. 3. Follow all instructions. 4. Install in accordance with the manufacturer's instructions : A. Do not block any ventilation openings. To ensure reliable operation of the projector and to protect it from overheating, put the projector in a position and location that will not interfere with its proper ventilation. For example, do not place the projector on a bed, sofa, carpet, or similar surface that may block the ventilation openings. Do not put it in an enclosure, such as a bookcase or a cabinet that may keep air from flowing through its ventilation openings. B. Do not use this projector near water or moisture. To reduce the risk of fire or electric shock, do not expose the projector to rain or moisture. C. Do not install near any heat sources, such as radiators, heaters, stoves or other apparatus (including amplifiers) that produce heat. 5. Clean only with a dry cloth. 6. Only use attachments/accessories specified by the manufacturer. 7. Refer all servicing to qualified service personnel. Servicing is required when the projector has been damaged in any way, such as: Power supply cord or plug is damaged. Liquids have spilled or objects have fallen into the apparatus. The projector has been exposed to rain or moisture, does not operate normally, or has been dropped. Do not attempt to service this projector yourself. Opening or removing covers may expose you to dangerous voltages or other hazards. Please call Optoma to be referred to an authorized service center near you. 8. Do not let objects or liquids enter the projector as they may touch dangerous voltage points or short-out parts that could result in a fire or electric shock. 9. See projector enclosure for safety related markings. 10. The projector should not be adjusted or repaired by anyone except properly qualified service personnel. Important Safety Instruction English 2 Usage Notice Precautions Pleasefollowallwarnings,precautionsand maintenanceasrecommendedinthisuser's guide. Warning- Do not look into the projector's lens when the lamp is on. The bright light may damage your eyes. expose this projector to rain or moisture. this may cause electric shock. Warning- To reduce the risk of fire or electric shock, do not Warning- Please do not open or disassemble the projector as Warning- When replacing the lamp, please allow unit to cool down, and follow all replacement instructions. See pages 47-48. Warning- This projector will detect the life of the lamp itself. Please be sure to change the lamp when it shows warning messages. display "Options|Lamp Settings" menu after replacing the lamp module (refer to page 40). Warning- Use the "Lamp Reset" function from the on-screen Warning- When switching the projector off, please ensure the When the lamp reaches the end of its life, the projector will not turn back on until the lamp module has been replaced. To replace the lamp, follow the procedures listed under "Replacing the Lamp" section on pages 47-48. cooling cycle has been completed before disconnecting the power. Allow 90 seconds for the projector to cool down. tion. Warning- Do not use the lens cap when projector is in opera Warning- When the lamp is approaching to the end of its life, the message "Lamp Warning: Lamp life exceeded." will show on the screen. Please contact your local reseller or service center to change the lamp as soon as possible. directly into the laser beam on the remote control and do not point the laser beam into anyone's eyes. This remote control is equipped with a Class II laser that emits radiation. Warning- To reduce the risk of injury to the eyes, do not look 3 English Usage Notice Do: Turn off the product before cleaning. Use a soft cloth moistened with a mild detergent to clean the display housing. Disconnect the power plug from the AC outlet if the product is not being used for a long period of time. Don't: not block the ventilation slots and openings on the unit. Do not use abrasive cleaners, waxes or solvents to clean the Do unit. not use under the following conditions: Do - In extremely hot, cold or humid environments. In areas susceptible to excessive dust and dirt. Near any appliance that generates a strong magnetic field. In direct sunlight. English 4 Usage Notice Eye Safety Warnings Avoid staring directly into the projector's beam of light at all times. Minimize standing facing into the beam. Keep your back to the beam as much as possible. Using a stick or laser pointer is recommended to avoid the need for the presenter to enter the beam. Ensure that projectors are located out of the line of sight from the screen to the audience; this ensures that, when presenters look at the audience, they do not also have to stare at the projector lamp. The best way to achieve this is by ceiling-mounting the projector rather than placing it on floor or table top. students when they are asked to point out something on the screen. to reduce ambient light levels. When projector is used in a classroom, adequately supervise In order to minimize the lamp power needed, use room blinds 5 English Introduction Product Features This product is a single chip 0.55" DLP® projector. Outstanding features include: Texas Instruments Single chip DLP® Technology Computer Compatibility: Apple Macintosh, iMac, and VESA Standards: UXGA, SXGA+, SXGA, WXGA, XGA, SVGA, VGA Video Compatibility: NTSC, NTSC4.43 PAL/PAL-M/PAL-N/SECAM SDTV compatible (480i/p, 576i/p) HDTV compatible (720p, 1080i) Auto source detection with user definable settings Full function IR remote control with laser pointer and mouse control User friendly multilingual On Screen Menu Advanced digital keystone correction and high quality full screen image re-scaling User friendly control panel One built-in speaker with 1 Watt amplifier Macintosh and PC compatible DVI-I support (HDCP compliant) English 6 Introduction Package Overview Thisprojectorcomeswithalltheitemsshown below.Checktomakesureyourunitiscomplete. Contactyourdealerimmediatelyifanythingis missing. Projector with lens cap Power Cord 1.8m VGA Cable 1.8m Due to the difference in applications for each country, some regions may have different accessories. Y-type Cable 100mm USB Cable 1.8m (Available in EMEA and (Available in EMEA only) ASIA version only) IR Remote Control Documentation : User's Manual Warranty Card Quick Start Card WEEE Card Carrying Case 2 x AAA Batteries 7 English Introduction Product Overview Main Unit 1 2 3 4 7 7 6 5 9 8 10 1. 2. 3. 4. 5. Control Panel Zoom Focus Zoom Lens Elevator Button 6. 7. 8. 9. 10. Elevator foot IR Receivers Connection Ports Power Socket Tilt-Adjustment Foot English 8 Introduction Control Panel 10 9 5 4 3 6 8 7 2 1 1. 2. 3. 4. 5. 6. 7. 8. 9 10. Enter Menu Power AV Mute Source Re-Sync Four Directional Select Keys Temp LED Lamp LED Power LED 9 English Introduction Connection Ports 7 6 5 4 3 2 1 8 9 1. 2. 3. 4. 5. 6. 7. 8. 9. USB Connector (Connect to PC for Remote Mouse function) RS-232 Connector Audio Input Connector S-Video Input Connector DVI-I Input Connector (PC Digital (HDCP)/PC Analog/Component Video Input) VGA In/SCART Connector (PC Analog Signal/Component Video Input, HDTV/SCART Input) VGA Output Connector (Monitor Loop-through Output) Power Socket KensingtonTM Lock Port English 0 Introduction Remote Control 1 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. Button LED Power On/Off Laser Button Page Up Mouse Right Click Four Directional Select Keys Re-Sync Page Down Volume +/Zoom AV mute Video Source VGA Source Freeze S-Video Source DVI Source Brightness Menu Keystone +/Source Enter Mouse Left Click PC/Mouse control Number Buttons (for password input) 2 3 23 22 21 20 19 18 17 16 15 4 5 6 7 8 9 10 11 12 24 14 13 English Installation Connecting the Projector Connect to Computer/Notebook 6 2 3 4 5 Due to the difference in applications for each country, some regions may have different accessories. 1 1...............................................................................................................Power Cord 2................................................................................................................ VGA Cable 3.........................................................DVI-I to VGA Cable (Optional accessories) 4........................................................... Audio Input Cable (Optional accessories) 5.......................................................................RS232 Cable (Optional accessories) 6................................................................................................................. USB Cable English 2 Installation Connect to Video Sources DVD Player, Set-top Box, HDTV receiver 2 7 8 3 4 1 5 Due to the difference in applications for each country, some regions may have different accessories. 6 8 Video Output S-Video Output 1...............................................................................................................Power Cord 2......................................SCART RGB/S-Video Adaptor (Optional accessories) 3................................................................... S-Video Cable (Optional accessories) 4............15-Pin to 3 RCA Component/HDTV Adaptor (Optional accessories) 5...................................................Composite Video Cable (Optional accessories) 6...........................................................Y-Type of Composite to S-Video Adaptor 7................................................3 RCA Component Cable (Optional accessories) 8...................................................Audio Cable Jack/RCA (Optional accessories) 3 English Installation Powering On/Off the Projector Powering On the Projector 1. Remove the lens cap. 2. Ensure that the power cord and signal cable are securely connected. The Power LED will be Amber. 3. Turn on the lamp by pressing "Power" button either on the top of the projector or on the remote. The Power LED will flash green. The startup screen will display in approximately 10 seconds. The first time you use the projector, you can select your preferred language from quick menu after the startup screen display. 4. Turn on your source (computer, notebook, video player, etc.). The projector will detect your source automatically. you connect multiple sources at the same time, press If the "Source" button on the control panel or direct source key on the remote control to switch between inputs. Power LED 2 Power Turn on the projector first and then select the signal sources. 1 Lens Cap English 4 Installation Powering Off the Projector 1. Press the "Power" button to turn off the projector lamp, you will see a message displayed on the projector's screen. 2. Press the "Power" button again to confirm, otherwise the message will disappear after 15 seconds. When you press "Power" button second, the system will show the timing countdown on the screen. 3. The cooling fans continue to operate for about 10 seconds for cooling cycle. When the Power LED turn Amber, the projector has entered standby mode. If you wish to turn the projector back on, you must wait until the projector has completed the cooling cycle and has entered standby mode. Once in standby mode, simply press "Power" button to restart the projector. 4. Disconnect the power cord from the electrical outlet and the projector. 5. Do not turn on the projector immediately following a power off procedure. Warning Indicator When the "LAMP" indicator lights red, the projector will automatically shut itself down. Please contact your local reseller or service center. See pages 54-55. When the "TEMP" indicator lights red, it indicates the projector has overheated. The projector will automatically shut itself down. Under normal conditions, the projector can be switched on again after it has cooled down. If the problem persists, you should contact your local dealer or our service center. See pages 54-55. When the "TEMP" indicator flashes red, it indicates the fan has failed. Please contact your local dealer or our service center. See pages 54-55. 5 English Installation Adjusting the Projected Image Adjusting the Projector's Height Theprojectorisequippedwithelevatorfootfor adjustingtheimageheight. To raise the image: 1. Press the elevator button . 2. Raise the image to the desired height angle , then release the button to lock the elevator foot into position. 3. Use screw in foot to fine-tune the display angle. To lower the image: 1. Press the elevator button. 2. Lower the image, then release the button to lock the elevator feet into position. 3. Use screw in foot to fine-tune the display angle. 3 2 1 Tilt-Adjustment Foot Elevator Foot Elevator Button English 6 Installation Adjusting the Projector's Zoom / Focus You may turn the zoom lever to zoom in or out. To focus the image, rotate the focus ring until the image is clear. The projector will focus at distances from 3.9 to 39.4 feet (1.2 to 12.0 meters). Zoom Ring Focus Ring Adjusting Projection Image Size Height Di ag on al 227.1" (576.9cm) 302.9" (769.2cm) Width 30.3" (76.9cm) 27.5" (69.9cm) 75.7" (192.3cm) 68.8" (174.8cm) 126.2" (320.5cm) 176.7" (448.7cm) 114.7" (291.4cm) 160.6" (407.9cm) 206.5" (524.5cm) 275.3" (699.3cm) Hd 3.9'(1.2m) 9.8'(3.0m) 16.4'(5.0m) 23.0'(7.0m) 29.5'(9.0m) 39.4'(12.0m) Screen (Diagonal) Screen Size Max. 30.3" (76.9cm) 75.7" (192.3cm) 126.2" (320.5cm) 176.7" (448.7cm) 227.1" (576.9cm) 302.9" (769.2cm) Min. 27.5" (69.9cm) 68.8" (174.8cm) 114.7" (291.4cm) 160.6" (407.9cm) 206.5" (524.5cm) 275.3" (699.3cm) 242.3" x 181.7" 615.4 x 461.5cm 220.3" x 165.2" 559.4 x 419.6cm 27.26" (69.2cm) 24.78" (62.9cm) 101.0" x 75.7" 141.3" x 106.0" 181.7" x 136.3" Max. 24.2" x 18.2" 60.6" x 45.4" (WxH) 61.5 x 46.2cm 153.8 x 115.4cm 256.4 x 192.3cm 359.0 x 269.2cm 461.5 x 346.2cm 91.8" x 68.8" 128.5" x 96.4" 165.2" x 123.9" Min. 22.0" x 16.5" 55.1" x 41.3" (WxH) 55.9 x 42.0cm 139.9 x 104.9cm 233.1 x 174.8cm 326.3 x 244.8cm 419.6 x 314.7cm Hd Max. Min. 2.73" (6.9cm) 6.81" (17.3cm) 11.36" (28.8cm) 15.9" (40.4cm) 20.44" (51.9cm) 2.48" (6.3cm) 6.19" (15.7cm) 10.32" (26.2cm) 14.45" (36.7cm) 18.58" (47.2cm) Distance 3.9' (1.2m) 9.8' (3.0m) 16.4' (5.0m) 23.0' (7.0m) 29.5' (9.0m) 39.4' (12.0m) This graph is for user's reference only. 7 English User Controls Control Panel & Remote Control Therearetwowaysforyoutocontrolthefunctions: ControlPanelandRemoteControl. Control Panel Using the Control Panel Power Menu Enter AV Mute Source Re-Sync Four Directional Select Keys Power LED Lamp LED English 8 Temp LED Refer to the "Power On/Off the Projector" section on pages 14-15. Press "Menu" to launch the on-screen display (OSD) menu. To exit OSD, Press "Menu" again. Confirm your item selection. Momentarily turns off/on the audio and video. Press "Source" to select an input signal. Automatically synchronizes the projector to the input source. Use to select items or make adjustments to your selection. Indicate the projector's status. Indicate the projector's lamp status. Indicate the projector's temperature status. User Controls Using the Remote Control Remote Control Power Laser Refer to the "Power On/Off the Projector" section on pages 14-15. Aim the remote at the viewing screen, press and hold this button to activate the laser pointer. The PC/Mouse control can be used to control mouse movement. The mouse function is enabled using the USB cable to connect your computer and the projector. Mouse left click. Mouse right click. Use this button to page up. Use this button to page down. Confirm your item selection. Press "Source" to select an input signal. Automatically synchronizes the projector to the input source. Use to select items or make adjustments to your selection. Adjusts image distortion caused by tilting the projector. (±18 degrees) Adjusts to increase/decrease the volume. Adjust the brightness of the image. PC/Mouse control L Button R Button Page + Page Enter Source Re-Sync Four Directional Select Keys Keystone +/Volume +/Brightness 9 English User Controls Using the Remote Control Remote Control Menu Zoom DVI VGA AV Mute S-Video Freeze Video Press "Menu" to launch the on-screen display (OSD) menu. To exit OSD, Press "Menu" again. Press "+/-" button to zoom in of an image. Press "DVI" to choose DVI source. Press "VGA" to choose source from VGAIN connector. Momentarily turns off/on the audio and video. Press "S-Video" to choose S-Video source. Press "Freeze" to pause the screen image. Press "Video" to choose Composite video source. This function is only available when the projector is connected to a video via a Y-type cable. English 20 User Controls On-screen Display Menus TheProjectorhasmultilingualOn-screenDisplaymenus thatallowyoutomakeimageadjustmentsandchangea varietyofsettings.Theprojectorwillautomaticallydetect thesource. How to operate 1. To open the OSD menu, press "Menu" on the Remote Control or Projector Keypad. 2 When OSD is displayed, use keys to select any item in the main menu. While making a selection on a particular page, press or "Enter" key to enter sub menu. 3. Use by keys to select the desired item and adjust the settings key. 4. Select the next item to be adjusted in the sub menu and adjust as described above. 5. Press "Enter" to confirm, and the screen will return to the main menu. 6. To exit, press "Menu" again. The OSD menu will close and the projector will automatically save the new settings. Main Menu Sub Menu Setting 2 English User Controls Menu Tree English 22 User Controls Image Display Mode There are many factory presets optimized for various types of images. Presentation: Good colour and brightness from PC input. Bright: Maximum brightness from PC input. Movie: For home theater. sRGB: Standardised accurate colour. User: User's own settings. Brightness Adjust the brightness of the image. Press the Press the Contrast to darken image. to lighten the image. The contrast controls the degree of difference between the lightest and darkest parts of the picture. Adjusting the contrast changes the amount of black and white in the image. Press the to decrease the contrast. Press the to increase the contrast. Sharpness Adjusts the sharpness of the image. Press the Press the to decrease the sharpness. to increase the sharpness. 23 English User Controls Image Saturation "Saturation" and "Tint" functions are only supported under video source. Adjusts a video image from black and white to fully saturated colour. Press the Press the Tint Press the Press the to decrease the amount of saturation in the image. to increase the amount of saturation in the image. Adjusts the color balance of red and green. to increase the amount of green in the image. to increase the amount of red in the image. English 24 User Controls Image | Color Color Select the Red/Green/Blue Gain for brightness adjustments and Bias for contrast adjustments for the whole picture. Individual color adjustments for Cyan, Magenta, Yellow can also be adjusted. Reset Choose "Yes" to return the factory default settings for color adjustments. 25 English User Controls Image | Advanced Degamma This allows you to choose a degamma table that has been fine-tuned to bring out the best image quality for the input. Film: for home theater. Video: for video or TV source. Graphics: for image source. PC: for PC or computer source. BrilliantColorTM This adjustable item utilizes a new color-processing algorithm and system level enhancements to enable higher brightness while providing true, more vibrant colors in picture. The range is from "0" to "10". If you prefer a stronger enhanced image, adjust toward the maximum setting. For a smoother, more natural image, adjust toward the minimum setting. Color Temp. Adjust the color temperature. Cold temperature, the screen looks colder; with Warm temperature, the screen looks warmer. Color Space Select an appropriate color matrix type from AUTO, RGB, YUV. English 26 User Controls Image | Advanced Input Source Enable input sources. Press " " into the next menu as below and then use or to select. Press "Enter" to finalize the selection. The projector will not search inputs that are de-selected. 27 English User Controls Display Format Use this function to choose your desired aspect ratio. 4:3: This format is for 4x3 input sources not enhanced for Wide screen TV. 16:9 I: This format is for 16x9 input sources, like HDTV and DVD enhanced for Wide screen TV. 16:9 II: The non-standard wide-screen display format of the projector. Part of the original image will be cut if the image aspect ratio is less than 1.67:1. Window: When a 4:3 image is bigger than a 16:9 screen, select the "Window" mode to fit the image onto the screen without changing the projection distance. English 28 User Controls Display area Picture area Input Signal 4:3 format Display on Screen or 16 : 9-I format or 16 : 9-II format window format 29 English User Controls Display Overscan function removes the noise in a video image. Overscan the image to remove video encoding noise on the edge of video source. Overscan Zoom Press the Press the to reduce the size of an image. to magnify an image on the projection screen. Shifts the projected image position horizontally. H Image Shift V Image Shift Shifts the projected image position vertically. V Keystone Press the or squarer image. to adjust image distortion vertically and makes a English 30 User Controls Setup | Language Language Choose the multilingual OSD menu. Press or into the sub menu and then use the or key to select your preferred language. Press "Enter" to finalize the selection. 3 English User Controls Setup Projection Front-Desktop The factory default setting. Rear-Desktop When you select this function, the projector reverses the image so you can project behind a translucent screen. Front-Ceiling When you select this function, the projector turns the image upside down for ceiling-mounted projection. Rear-Ceiling When you select this function, the projector reverses and turns the image upside down at same time. You can project from behind a translucent screen with ceiling mounted projection. Projector ID Allows RS232 control of an individual projector. Range 01-99. Information Hide On: Choose "On" to hide the searching message. Off: Choose "Off" to show the searching message. English 32 User Controls Setup Start Up Logo Use this function to select your desired start-up screen. On: Choose "On" to show the Optoma logo. Off: Choose "Off" to show a blank image. 33 English User Controls Setup | Security Security On: Choose "On" to use security verification when the turning on the projector. Off: Choose "Off" to be able to switch on the Security Timer projector without password verification. Can be select the time (Month/Day/Hour) function to set the number of hours the projector can be used. Once this time has elapsed you will be requested to enter your password again. English 34 User Controls Setup | Security First Time: 1.ThePasswordis4digits,DEFAULTVALUEis"1234".(firsttime) 2.Usenumberbuttonsontheremotetoselectyourpassword,andthen press " "keytoconfirmyourselection. Change Password 1. Press " " to input old password. 2. Use number button to enter current password, and then press " " key again to reveal next OSD menu. 3. Scroll down to highlight Password, and then press " to activate. 4. Enter new password (4 digits in length) using the number buttons on the remote, then press " " to confirm. 5. Enter new password again and press " " to confirm. " 35 English User Controls Setup | Signal Phase "Phase" synchronizes the signal timing of the display with the graphic card. If you experience an unstable or flickering image, use this function to correct it. Frequency "Frequency" changes the display data frequency to match the frequency of your computer's graphic card. If you experience a vertical flickering bar, use this function to make an adjustment. H. Position Press the to move the image left. Press the to move the image right. V. Position Press the Press the to move the image down. to move the image up. English 36 User Controls Options Menu Location Choose the menu location on the display screen. Source Lock On: The projector will search specified connection port. Off: The projector will search for other signals if the current input signal is lost. High Altitude Choose "On" to turn on High Altitude mode. Operates the fans at full speed continuously to allow for proper high altitude cooling of the projector. When the keypad lock function is on, the control panel will be locked, but the projector can still be operated by the remote control. If canceling this function, use the remote control or press the "Enter" key on the control panel for 7 seconds to turn it off. Keypad Lock Background Color Use this feature to display a "Blue" or "Black" screen when no signal is available. Mute Choose the "On" to turn mute on. Choose the "Off" to turn mute off. 37 English User Controls Options Volume Press the Press the Reset to decrease the volume. to increase the volume. Choose "Yes" to return the display parameters on all menus to the factory default settings. English 38 User Controls Options Direct Power On Choose "On" to turn on Direct Power On mode. The projector will automatically power on when AC power is supplied, without pressing the "Power/Standby" key on the projector control panel or "Power" key on the remote control. Auto Power Off (min) Sets the countdown timer interval. The countdown timer will start, when there is no signal being sent to the projector. Then projector will automatically power off when the countdown has finished (in minutes).