Toshiba Tdp Tw100 Projector User Manual
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21 20 Preparations Placement StylesAs shown in the figures below, this device can be placed in 4 different styles. The factory setting is “floor-mounted front projection.” Set the [Projection mode] in the Default setting menu p.41 , in accordance with your needs. Placement WARNING •Always obey the instructions listed in IMPORTANT SAFETY INSTRUCTIONS when placing the unit. Attempting to clean/replace the lamp at a high site by yourself may cause you to drop down, thus resulting in injury. •If you wish to mount the projector on the ceiling, be sure to ask your dealer to do so. Mounting the projector on a ceiling requires special ceiling brackets (sold separately) and specialized knowledge. Improper mounting could cause the projector to fall, resulting in an accident. •If the projector is ceiling-mounted, install the breaker for turning off the power in case of anomaly. Let everyone involved with the use of the projector know that fact.Floor-mounted front projection Floor-mounted rear projection Ceiling-mounted front projection Ceiling-mounted rear projection Operating a computer using the remote controlA computer can be operated using the projector’s remote control. This function is available on any computer with the Windows ® 98/98SE, Windows ® Me, Windows ® 2000, or Win- dows ® XP OS, that is equipped with a USB port which can support USB1.1 (The mouse remote control receiver is also supported on OS 9 or OS X for the Macintosh). However, please note that Toshiba does not guarantee the operation of all computers. 1 Connecting a computerConnect the mouse remote control receiver (supplied) to a computer.Mouse remote control receiverTo USB port2 Operating a computerOperate remote control’s buttons towards the mouse remote control receiver. ●Moving the mouse pointer Press the mouse control button in the direction you wish the mouse pointer to move, then press. ●To left click Press the L-CLICK button. ●To right click Press the R-CLICK button. ●To drag and drop Holding down the L-CLICK button, move the mouse control button until the mouse pointer is over the desired location, then release the L-CLICK button. ●Using the computer’s page up [ ↑] and down [ ↓] function Press the PAGE+ and PAGE- buttons to switch PowerPoint ® slides. The remote control may fail to operate if the mouse remote control receiver is exposed to bright sunlight or fluorescent lighting. In such a case, change position or direction of the mouse remote control receiver and retry. Mouse control Remote Control Front Remote Control Rear PAGE – PAGE + R-CLICKL-CLICK Projection Distance and SizeUse the figures, tables, and formulas below to determine the projection size and projection distance. (Projection sizes are approximate values for full-size picture with no keystone adjustment.)Screen As seen from above As seen from the side 90° a 90° Lens center a (min length) = projection size (inches) – 1.0437 26.957 a (max length) = projection size (inches) – 0.6246 16.749 a is the distance (m) between the lens and the screen, and corresponds to a range of 1.07 m to 11.09 m. projectionprojection distance a (m) min length max lengthsize (inches) (zooming max) (zooming min) 30 1.07 1.7540 1.45 2.3560 2.19 3.5580 2.93 4.74100 3.67 5.93150 5.53 8.92200 7.38 –250 9.24– 300 11.09–
23 22 Preparations p.89 Audio amplifier, etc. DVD video recorder, etc.Video recorder, DVD player, etc. Video recorder, etc. Conversion adapter BNC-pin (not supplied) Monitor cable Mini D-sub 15P-BNC (not supplied) To audio input White (L)/Red (R)To audio output White (L)/ Red (R) AV cable (not supplied)S-video cable (not supplied)To S-video output To video output Before connection•Read the owner’s manual of the device you are connecting to the projector. •Some types of computer cannot be used or connected to this projector. Check for an RGB output terminal, supported signal p.87 , etc. •Turn off the power of both devices before connecting. •The figure is a sample connection. This does not mean that all of these devices can or must be connected simultaneously. (Dotted lines mean items can be exchanged.) Notes •The COMPUTER 1 IN terminal functions identically to the COMPUTER 2 IN terminal. •The MONITOR OUT terminal outputs signals from the COMPUTER 1 IN terminal or the COMPUTER 2 IN terminal, or outputs Y/P B/PR as selected with the INPUT button. If no input is selected, the MONITOR OUT terminal outputs the input signals last selected for each input terminal •Signals are output from MONITOR OUT terminal even in standby mode. However, from AUDIO OUT terminal, no audio signal is output. •A computer monitor cannot accept Y/P B/PR signals correctly. •The AUDIO IN terminal doubles for devices connected to COMPUTER terminals 1 and 2. •When an AUDIO OUT terminal is connected, sound is not output from the projector speaker. •Output volume of AUDIO OUT terminal can be adjusted by the VOL button. •Moving pictures played back on computers using DVD software may appear unnatural if it is projected with this projector, but it is not a malfunction. Connection Computer (for control)Computer To RS-232C terminal Audio cable (not supplied)To audio output Control cable RGB cable (supplied)To RGB output Computer Audio cable (not supplied) Audio cable (not supplied) To audio output To Y/C B/CR output Green (Y)/Blue (CB)/Red (C R) To audio output White (L)/Red (R) Audio cable (not supplied)To audio output Audio cable (not supplied) RGB cable (not supplied)To RGB output
25 Operations 24 Notes •The start-up screen will disappear after a moment. You can dismiss the star t-up screen before this by performing any operation. You can also configure the start-up screen not to appear via the Display setting menu p.38 . •The first time you use the projector after purchase, after the start-up screen disappears, the start menu is displayed p.26 . •When [Key lock] is [On], the operation buttons of the projector do not work p.43 . •When [Password] is [On], enter password then the start-up screen is displayed after the Password entry screen disappears p.33 . ■Turning the power off1 Press the ON/STANDBY button.A message appears on the screen, confirming that you wish to shut off the power. This message will disappear after a moment. (This operation is no longer valid after the message disappears.) 2 Press the ON/STANDBY button again.The screen turns off, but the internal cooling fan continues to operate for a short while. Then, the projector goes into standby mode. A B C A During cooling, the LAMP indicator flashes. In this state, the power cannot be turned back on. If you are in a hurry, there is no problem with unplugging the power cord in this state. B After the LAMP indicator goes off, the FAN indicator keeps lighted and the cooling fan continues to operate for a short while, in order to expel excess internal heat. C In standby mode Note •The projector consumes about 9W of power in standby. We recommend that you unplug the power cord if you will not be using the projector for an extended period. (When [Wireless standby] is [On], it consumes about 12W during standby.) PRECAUTION •If the power cord is unplugged before cooling is complete, give the lamp time (about 5 minutes) to cool before plugging it back in. If the lamp overheats, it may fail to light. When cooling lamp During internal cooling After cooling complete Turning the power on and offOperations ■Connecting the power cord1 Insert the power cord connector into the AC IN socket of the projector. 2 Insert the power cord plug into a wall or other power outlet.The ON/STANDBY indicator will change to orange, indicating standby mode. ■Removing the lens cover Be sure to remove the lens cover when the power is turned on. If it is left on, it could become deformed due to heat. ■Turning the power on Press the ON/STANDBY button. The power turns on, and the following 3 green indicators light: ON/STANDBY, LAMP, and FAN. After a moment, the start-up screen appears. CAUTION •Do not look into the lens while the lamp is on. The strong light from the lamp may cause damage to your eyes or sight. •Do not block the air intake or exhaust. Doing so could cause a fire due to internal overheat- ing. •Do not place your hands, face, or other objects near the air exhaust. Doing so could cause burns, deform/break the object. Power cord connector (Supplied) Start-up screen Control panelRemote Control
27 Operations 26 5 Projector placement angle adjustmentsThe placement angle and the height of the projected image can be adjusted by the foot adjuster.qLift up the front of the projector to the desired angle, then press the foot adjuster release button. The foot adjuster extends. Release the button to lock the position. wTo fine adjust the angle, twist the foot adjuster. eTo adjust the horizontal angle, use the right and left tilt adjusters.•To stow the foot adjuster, hold up the projector while pressing the foot adjuster release button, then slowly lower the projector. 6 Adjusting the screen size and focusq Use the ZOOM button to adjust the screen size. w Use the FOCUS button to adjust the screen focus. 7 Adjusting the volume with the buttonsThe speaker volume can be adjusted when an audio signal is being input.Notes •While a text entry screen (e.g., the Password entry screen) is displayed, the remote control’s FOCUS and ZOOM buttons function as numeric keys, and therefore cannot be used to adjust the screen size or focus. In such a case, use the FOCUS and ZOOM buttons on the projector to make adjustment or retry after quitting the text entry screen. •Note that lamp characteristics may rarely cause the brightness to fluctuate slightly. •A lamp is consumable item. If used for extended periods, images will appear dark, and the lamp could burn out. This is characteristic of a lamp, and is not malfunction. (The lifetime of the lamp depends on conditions of use.) •The DMD TM is made using extremely advanced technology, but there may be black spots (pixels that do not light) or bright spots (pixels that are constantly lit) on the panel. Please note that these are not malfunctions. •Although this projector supports a wide range of RGB signals p.87 , any resolutions not supported by this projector (XGA) will be expanded or shrunk, which will affect image quality slightly. To view high-quality images, it is recommended that the computer’s external output should be set to XGA resolution. •With some models of computer having LCD displays or the like, displaying images simultaneously on the projector and the monitor’s display may prevent the images from displaying properly. If this happens, turn off the computer’s LCD display. For information on how to turn off the LCD display, see the owner’s manual of your computer. •If no signal is being input from the connected equipment or signal input is stopped while projecting, the “No signal” will appear. •If a signal not supported by the projector is input, the “Unsupport signal” will appear. •If an unavailable operation button is pressed, the icon will appear. 1 2 3 3 Control panelRemote Control 1 Turn on the power.Turn on the power by following the instructions in “Turning the power on” p.24 . The Easy setup function works to automatically adjust the screen focus and correct the keystone distortion. If RGB signals are input, auto-setting is also made. This operation does not take place when [Easy setup] in the Default setting menu is [Off] p.41 . 2 Select the language and the lamp power (When using the first time).When the projector is used for the first time after purchase, the start menu for lan- guage (to display the menus and messages on the screen) and lamp power selection and configuration is displayed in English. (If the screen is out of focus, adjust it according to the step 6.) qUse the or button to select the desired language and press the button. Message for setup confirmation is displayed in a selected language. Then, the menu for lamp power selection and configuration is displayed. It is automatically set as Standard. To change the setting, follow the step w. wUse the or button to select the lamp power and press the button. The lamp power, if selected, will be toggled without pressing the button. The display automatically disappears in a few seconds. Notes•When the projector is turned on the next time, the start menu does not appear upon startup. However, if [Reset all] is executed from the Default setting menu p.41 , the start menu will be displayed the next time when the power is turned on. •The language can also be set via the Display setting menu p.38 and Lamp power via the Default setting menu p.41 . •This owner’s manual assumes that English has been selected. 3 Activate the connected device.Turn on and start the connected device such as a computer. 4 Press the INPUT button.An image of the connected equipment is projected. Each time you press the INPUT button, it switches to the input of the connected equipment that is outputting video signals.Notes •When [Auto input search] is set to [Off] in the Default setting menu p.41 (factory setting is [On]), the Input select menu appears if you press the INPUT button p.42 . •If no signal is being output from the connected equipment, pressing the INPUT button does not change the input and “There is no other input signal.” will appear. Basic operations English French German Italian Spanish Portuguese Russian Swedish Turkish Polish Japanese Chinese (simplified) Chinese (traditional) Korean
29 Operations 28 ■Using auto setting (Only for input from computer) This function automatically adjusts the projector settings such as sampling phase, frequency, screen position, and clamp for each type of the input signal by using simple operations. Press the remote control’s AUTO SET button.For computer input, the icon will appear during processing. You can set as well by selecting [Auto setting] in the Image adjustment menu p.36 . Notes•The image may not be projected or auto adjustment/setting may not be performed correctly for input signals other than those supported by the projector p.87 , p.88 . •If auto setting fails adjustment, adjust manually with [Position] in the Image adjustment menu p.36 . ■Correcting the keystone distortion When the projector placement angle against the screen is changed while projecting the image, the picture will undergo keystone (trapezoidal) distortion.This projector is capable of correcting this keystone distortion . 1 Press the KEYSTONE button.The Keystone menu appears. By default, [Auto v-keystone] is selected. Item Description Automatically corrects the vertical distortion. Press . Screen shrinking at Screen shrinking at bottom top Auto v-keystone V-keystone Using handy features Control panelRemote Control Before correction After correction Remote Control ■Easy setup This function automatically adjusts the screen focus and corrects the keystone distor- tion (Auto focus and Auto keystone functions). Press the EASY SETUP button on the projector or on the remote control.The icon will appear during processing. •Before pressing the EASY SETUP button, be sure to set Auto focus and select the items to be adjusted by Auto adjustment p.41 . •With [Power on Easy setup] in the Default setting menu set to [On], the screen focus is automatically adjusted and the keystone distortion (vertical) is corrected when the power is turned on. (Automatic keystone distortion correction and auto-setting are selected by factory setting.) •The following screen appears during Auto focus. Note•A message appears on the screen if the auto-adjustment fails.Precautions•Auto focus function is effective for projection distance from 1.1 m (30 inch at maximum zoom) to 5.5 m (150 inch at maximum zoom). •Depending on the room temperature and brightness as well as the projected image condition and the projecting surface condition and material, the adjustment may not be properly made. When such a case arises, adjust the screen focus manually. •Improper adjustment or correction may also occur if the AF sensor is obstructed or the window gets dirty. Remove the obstruction and clean the AF sensor window in such a case. •After performing Easy setup at power-on, the projected image may appear to be out of focus after a while. In that case, perform Easy setup again. •Avoid impact on the projector. Otherwise, Auto focus may not work properly. Control panelRemote Control
31 Operations 30 Remote Control 3 To move the area to zoom in, use the buttons.You can keep pressing. 4 To reset the zoom, press the RETURN button.The image is reset to the original size.Notes•The icon appears while resizing. •Operating a function other than Mute will release resizing. •As zooming is processed digitally, the image quality is degraded in larger zoom ratio. •During resizing or moving the zooming area, the image may be distorted. ■Cutting off the picture and sound temporarily (Mute) When you want to project the images of another projector, overhead projector, etc. temporarily, this projector’s images and sound can be turned off. Press the remote control’s MUTE button.The picture and sound are cut off. (The Mute function is released when pressing the MUTE button again.)Notes•The icon will appear while mute is in effect. •Operating any other functions will also cancel the muting. ■Changing picture mode The projected image mode can be selected. Press the remote control’s PICTURE button.1 The Picture mode menu appears.When connected with computer or USB device 1/2/3/4/5 When connected with video equipment 1/2/3 2 Select a mode using then press . Though the button is not pressed, the picture mode changes as the setting is changed and the display turns off automatically in a few seconds. Note•[Picture mode] of the Image adjustment menu has the same function p.36 . Remote Control Using handy features (Continued) Adjusting Keystone distortion [Auto]2 Press the button. The keystone distortion is automatically corrected. The icon appears during this correction. When adjustment is finished, the Keystone menu appears again. For fine adjust- ment, select [V-keystone] by the button and adjust image manually by the buttons. Adjusting Keystone distortion [Manual]1 Press the KEYSTONE button. 2 Select [V-keystone] by the button. 3 Use the buttons for keystone adjustment. Notes•A message appears on the screen if the automatic vertical keystone distortion correction fails . •Depending on the amount of keystone adjustment and the content of images, some information may be lost, or the picture quality may suffer. Precaution•Depending on the room temperature and brightness, the placement as well as the projecting surface condition and material, the correction may not be properly made. When such a case arises, make correction manually. ■Resizing image The projected image can be resized (zoomed in/out).1 Press the remote control’s RESIZE button. Each time you press the RESIZE button, zoom ratio is up. You can keep pressing. 2 To zoom out, press the remote control’s RESIZE button. Each time you press the RESIZE button, zoom ratio is down. You can keep pressing. (However, the image cannot be smaller than the original size.) Remote Control
33 Operations 32 ■Password function When the password function is added and [Password] is set to [On], image projection requires an entry of the preset password at power-on. To add the password function, perform the following procedure: (The password function, once added, cannot be deleted. Set [Password] to [Off] if you do not want to use it after addition.) Notes: • This password is different from that for the wireless LAN. •When adding the password function, switch the input to other than Wireless or USB. How to add password 1 Set the projector to the operating status or the standby mode. 2 Select and hold the button until the LAMP, TEMP, and FAN indicators light in orange. The password function is added when the steps up to here have been completed. It is also added to the Default setting menu.How to set password (from [Off] to [On]) 1 Select [Password] in the Default setting menu and press the or button.The password setting confirmation screen is displayed. ([OK] or [Cancel]) 2 Select [On] and press the button. The password entry screen is displayed. 3 Enter a four-digit number for the password using numeric keys of the remote control.The input number appears as [****]. 4 Re-enter the same password for confirmation.When the password is confirmed, the setting is complete and the password becomes [On]. If the password is wrong, repeat the procedure from step 2. How to operate when password is [On] 1 Turn on the power. 2 The lamp lights and the password entry screen appears. 3 Enter the password using numeric keys of the remote control.If the entered password is correct, the start-up screen appears and the projector goes into normal operation. If the password is wrong, a message appears to prompt you to re-enter the password, and again the password entry screen is displayed. If you enter a wrong password for more than 5 times, the projector will automatically power off and enter standby mode. Using handy features (Continued)■Changing screen size The screen size for the projected image can be changed. Press the remote control’s SCREEN SIZE button.Pressing the button switches Full/Thru/Wide in turn.Notes•Thru display is available for computer-input images. •[Screen size] of the Display setting menu has the same functionp.38 . •If you use this function on commercial video software, broadcast or cable-broadcasting except for the purpose of your private viewing and listening, it may infringe the copyright protected by the copyright laws. ■Freezing the image (Freeze) The image being projected can be frozen. This function is to be used to pause a video during a presentation, etc. Press the remote control’s FREEZE button.The picture pauses. (The Freeze function is released when pressing the FREEZE button again.)Notes•The icon will appear while freeze is in effect. •Other operation will also release the freeze. •Even if an image is frozen on the projector, the pictures are running on the video or other equipment. •If you use this function on commercial video software, broadcast or cable-broadcasting except for the purpose of your private viewing and listening, it may infringe the copyright protected by the copyright laws. Remote ControlRemote Control
35 Operations 34 You can call up on-screen menus, and conduct a number of adjustments and settings using the operation buttons p.16 on the control panel (main unit side) and remote control. ■How to use the menus The menu shown below is for operation instructions purposes and might differ from the actual display. Using the menus Toggle items with . Select items with and press . Fix selection with . Display the Setting display menu. 1. Press the MENU button 2. Select a Category 3. Adjustments & SettingsSelect a category by using . There are following four categories:Displays the current adjustments and settings of selected category. Item shown with gray cannot be adjusted with the current input source.p.36 Image adjustment menu p.38 Display setting menu Default setting menu p.41 •The figure shows displays given for operation instructions purposes. As the display may differ depending on the item, use the following pages as a reference. •To return to previous item, press the RETURN button. •When Wireless/USB input is selected, pressing the MENU button displays the Setting display (2) menu. Item Adjustment/Setting ValueThese marks signify the items can be adjusted/set by using . These marks signify the items can be selected from the list by using . After an item is selected, apply it by pressing . Press or to open the menu. Status display menu p.44 These marks signify that there are options. Press or to display a list of options. These marks signify that there are setting screens. Press or to display a list of setting screens. * When no item is changed, press . 4. EndPress the MENU button once more. (The menu disappears 30 seconds after the last operation.) How to cancel password (from [On] to [Off]) 1 Select [Password] in the Default setting menu and press the or button.The password entry screen is displayed. 2 Enter the password using numeric keys of the remote control. 3 The password cancel confirmation screen is displayed. ([OK] or [Cancel]) 4 Select [OK] and press the button. The [Password] is canceled and becomes [Off].Note•The password entry screen appears when the power is turned back on only after the power cord is unplugged.You cannot release password by yourself. If you forgot password, please inquire your dealer. Using handy features (Continued)
37 Operations 36 Item Description Computer Y/P B/PRVideo S-videoWireless/ USB Position FrequencyYe s N o NoNo No Adjust to eliminate periodic patterns and flickering when many fine vertical lines appear on the screen. H-positionYe s N o NoNo No Adjust the horizontal position of the image. V-positionYe s N o NoNo No Adjust the vertical position of the image. Clamp 1Ye s N o NoNo No Adjusts the clamp pulse position. Clamp 2Ye s N o NoNo No Adjusts the clamp pulse width. *1: [Noise reduction] may not work depending on signal type. *2: [[NTSC mode] can be displayed and adjusted only when the video signal is set to [NTSC] or [NTSC4.43]. NTSC mode is set to JAPAN when the language is set to Japanese. It is set to US for other languages. Using the menus (Continued)■The image adjustment menuUse this menu to set or adjust image-related items. Items that can be set or adjusted are marked with “Yes”, and those that cannot are marked with “No”. (When an item is masked, it indicates that you cannot select for the current input.) Item Description Computer Y/P B/PRVideo S-videoWireless/ USB ContrastAdjust the image contrast. Yes Yes Yes Yes Yes Lower Higher BrightnessAdjust the brightness of the image. Yes Yes Yes Yes Yes Darker Brighter ColorAdjust the color of the image. No Yes Yes Yes No Lighter Deeper SharpnessAdjust the sharpness of the image. No Yes Yes Yes No Softer Sharper NoiseSet the function to reduce screen noise. No Yes Yes Yes No reduction *1 On (Enable) Off (Disable) Picture modePress . Toggle the picture mode with No Yes Yes Yes No . 1/2/3 1/2/3/4/5 Yes No No No Yes / / R-levelAdjust red of the image color. Yes Yes Yes Yes Yes Less red More red G-levelAdjust green of the image color. Yes Yes Yes Yes Yes Less green More green B-levelAdjust blue of the image color. Yes Yes Yes Yes Yes Less blue More blue NTSC mode *2 Set the black level with .NoNoYesYesNo US:NTSC (US) mode JAPAN:NTSC (JAPAN) mode Auto settingAutomatically adjusts items such as the Yes No No No No samplingphase depending on the type of input signal.PositionPress then change mode using Ye s N o NoNo No and adjust with . PhaseYe s N o NoNo No Adjust to eliminate flicker.
39 Operations 38 Note •If you use the screen size setting function on commercial video software, broadcast or cable-broadcasting programs to display images with the varying aspect ratio except for the purpose of your private viewing and listening, it may infringe the copyright protected by the copyright laws.[Blackboard mode]Projects the image in colors more like projecting on a screen. Precaution•The projected image may differ depending on the type, color, and material of the blackboard and wall even if the selected color is the same as the projected screen.[Background]•TOSHIBA is set for [Logo] by factory setting. •If user’s logo has been registered, it is displayed when [Logo] is set for background.[Start-up screen]If user’s logo has been registered and this setting is [On], the logo is displayed at start-up.[User logo]Registers a part of the image that is input from computer, as a stationary picture and displays it as a logo at start-up and when no signal is input. How to register user logo1 Select [User logo] in the Display setting menu, and press the or button. 2 Select from the displayed menu list and press the button. 3 The registration area is displayed for confirmation. Select [OK] or [Cancel] and press the button. •If the registered picture does not fall within the display area, operate the computer to scroll the screen. 4 Select [Yes] to register and press the button. 5 Registration starts.•A message is displayed while registration is in process. Using the menus (Continued)■The display setting menuUse this menu to set screen display-related items. (The items in gray color cannot be set with the current input selection.) (Full): Display with 1024 × 768 dot resolution (Thru): Display with sampling resolution (Disabled for the video input) (Wide): Wide-screen display (Disabled for the wireless/USB input) When projecting on a non-screen surface, select a color in accordance with the projecting surface. Press and switch with and . Off/Green/Black/Brown/Blue/Beige Select one of the languages below to use for displaying the menu and messages[ or : Enter setting mode] [ :Selection] [Apply: ] English/Français/Deutsch/Italiano/Español/Português/ / Svenska/Türkçe/Polski/ / / / Screen to display when there is no input signal [ or : Enter setting mode] [ :Selection] [Apply: ] Logo/Blue/None Display icons as function guidesOn Off Display start-up screen when power is turned onOn Off Display a logo customized by the user for the start-up screen or when there is no input signal. [ or : Enter setting mode] [ : Selection] Logo registration Press to display the registration menu. Display style BackgroundBlack Blue White Logo confirmation Press . Reset logoYes NoDescription Item Screen size Language Background IconBlackboard modeStart-up screen User logo Detailed description [Screen size]•If “Thru” is selected for [Screen size], portions exceeding the native resolution (1024 × 768 pixels) will not appear on the screen. Note that for RGB signals with clock frequency 140MHz or lower, all input pixel signals are sampled. However, if the clock speed is higher than this, the RGB pixel signal is thinned before sampling. •The wireless/USB input can be selected only when the wireless LAN USB adapter is connected to the projector. Selecting the “Full” mode allows the display in the same aspect ratio with that for the video signal.