ASK Impression 750 User Guide
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USER GUIDELCD PROJECTOR20 7.1.4 SVGA SVGA in 800x600 mode is compressed both horizontally and vertically to 640x480 resolution. This feature is convenient when displaying irregular images (like pictures, scanned images and coarse graphics). Regular images (patterns, text and fine line graphics) may look distorted due to the downsizing. In this case, we recommend setting up the computer in 640x480 mode for a precise image. 7.1.5 VGA TEXT VGA text is compressed correctly from 720x400 to 640x400 mode when the image is positioned correctly. The characters maintain their shape, as every ninth pixel is dropped horizontally between each character. Selecting MCGA in the menu will deactivate the text compression. This is useful for 320x200x256 MCGA images. 7.1.6 BUILT IN SPEAKERS Stereo speakers are built into the LCD projector that provide ample sound for small and medium sized rooms. External speakers may be used for better freedom in positioning of the speakers. An external amplifier may also be connected to the speaker outputs for added boost to the external speakers. 7.1.7 MULTISTANDARD TV SYSTEMS The LCD projector incorporates a unique multistandard video decoder that works with all major TV systems. NTSC, PAL and SECAM are automatically detected. See the Technical Data section for TV system compatibility. (The PAL M and N systems are not supported). 7.1.8 PAL/SECAM ASPECT RATIO The NTSC system maps directly to a 640 x 480 resolution display. The PAL and SECAM systems need aspect ratio conversion to fit correctly. The LCD projector automatically adapts to NTSC, PAL and SECAM formats and adjusts the aspect ratio accordingly. 7.1.9 ON SCREEN DISPLAY (OSD) The OSD is an information system that in plain text echoes your RC and MENU selections on screen in real time. The OSD information is displayed in the lower left corner of the screen. The OSD feature may be set visible or hidden through the menu system. See also the Menu System section.
USER GUIDELCD PROJECTOR21 7.1.10 MOUSE The remote control (RC) employs a unique mouse functionality that enables full mouse control of your PC, PS/2 or Macintosh computer. By default, the cursor keys of the remote control emulate the mouse. The LEFT and RIGHT keys emulate the left and right keys on a standard two-key mouse. For Macintosh computers, the right key is not used. The DRAG key is used to emulate the click-and-hold action. To move an object, position the mouse cursor, press DRAG to tag the object, position the object as desired using the cursor keys, then press DRAG again to release the object. DRAG is automatically released 5 seconds after the last key is pressed. The DRAG key is used to activate the pull-down menues on the Macintosh. 7.1.11 POINTER The pointer is a red spot applied to the projected image, and can be moved freely around using the cursor keys. Activating POINTER will deactivate the MOUSE function (as the same cursor keys are used). The POINTER is a toggle function. The pointer may be used with any application, including live video, for focusing attention. The pointer may not be used when the MENU is active. The pointer must also be switched off when controlling the mouse. 7.1.12 MASK The MASK is a black (opaque) overlay on the image displayed. The MASK may be positioned vertically using the cursor keys. The MASK key is a toggle function. Other cursor controlled features like POINTER and MOUSE does not work when MASK is active. 7.1.13 ENLARGE The ENLARGE function doubles the image vertically. Pressing the ENLARGE button repeatedly will display the enlarged upper part, enlarged lower part and then go back to normal (not enlarged). ENLARGE is not active when displaying S-VIDEO, VIDEO or SVGA. Pressing RESET will bring ENLARGE back to normal.
USER GUIDELCD PROJECTOR22 7.1.14 FREEZE Press the FREEZE button on the RC to lock the image displayed. This feature is useful if you want to make changes locally on your computer that should not be presented to the audience. It is also useful for freezing live video images when showing video. Press FREEZE once more to resume on-line operation. Any other key pressed will also release FREEZE. 7.1.15 BLACK Use the BLACK key on the RC, if you temporarily want to suspend the display of images. The BLACK key is a toggle function, and the screen goes black when activated. Blanking the image is done using the ON/OFF key. Any key pressed will release BLACK. 7.1.16 PROG This key may be programmed to one of the menu functions of your choice. In the menu, select option and then press PROG. This option is now memorized, and available (when not in the menu) directly from the PROG key on the remote control, until a new programming is performed. 7.1.17 CONTRAST The contrast of an image is defined as the relation between dark and light colors. An image of high contrast is often regarded as hard, as compared to the soft feeling of a low contrast image. Low contrast is recommended for long term viewing, while high contrast is used to enhance details. Use the CONTR keys on the remote control (RC) to adjust the contrast. Also see Brightness. The contrast setting is stored individually for each mode. 7.1.18 BRIGHTNESS The brightness is the amount of white in an image. The brightness is adjusted to the ambient lighting conditions. Usually, a bright, low contrast image is preferred. Use the BRIGHT keys to adjust brightness. See also Contrast. The brightness setting is stored individually for each source. 7.1.19 VOLUME The sound volume is controlled using the VOLUME up and down keys. 7.1.20 MUTE The sound is switched on and off using the MUTE key. Pressing VOLUME up or down will also release MUTE. 7.1.21 COMPUTER The computer image is displayed when pressing the COMPUTER key. This is the power on default setting.
USER GUIDELCD PROJECTOR23 7.1.22 S-VIDEO The S-VIDEO source is selected with this key. 7.1.23 VIDEO The composite video source is selected with this key. 7.1.24 MIC The MIC key toggles the microphone input on and off. When on, the MIC is overlaid the AUDIO input (unless sound is muted). 7.1.25 MENU The menu system is invoked using the MENU key. The menu system gives access to basic setup functions that are rarely used. See the separate Menu System chapter for details. 7.1.26 ON/OFF The switch is located next to the mains input. There is also an ON/OFF key on the RC. This key is used to blank the screen. 7.1.27 RESET This feature enables standard settings of most controls (see the MEM column in the remote control description, where YES also indicates a standard setting). RESET will only reset the active mode.A fundamental master reset may be performed by pressing all four RESET, BRIGHTNESS and TUNE buttons simultaneously for approx. 5 seconds, wait until the image reappears, then switch off the power. Repower the unit again. All settings will then return to factory defaults. Do not perform a master reset unless it is really required. This operation will also erase all custom sources and modes that have been memorized.
USER GUIDELCD PROJECTOR24 8 MENU SYSTEM The menu system was developed to gain access to functions not often used, as opposed to frequently used features that are directly available through the RC. Press the MENU key on the RC to invoke the menu system. When the menu is active, the cursor keys are used to navigate between options (and can therefore not be used for mouse control etc. at the same time). The LEFT key is used to activate an option. The PROG key may be assigned to any of the menu options. Toggle functions (like OSD ON/OFF) are tagged when active and untagged when not active. Increase/decrease functions (like TUNE and FREQUENCY) are adjusted using the cursor keys. OSD is used to indicate the actual setting. The MENU key is toggling the menu on and off. The menu is also switched off after one minute of no action. The last position in the menu is maintained during a session, but it is reset during power off. Most selections are memorized, unless otherwise noted. The main menu selections SETUP, SOUND and PICTURE are explained in detail below. Features only available with some sources are shown in light italic characters in the menu illustrations, while generally available functions are shown in bold characters.
USER GUIDELCD PROJECTOR25 8.1 THE SETUP MENU SELECTIONSSETUPPICTURESOUNDTUNEPOSITIONFREQUENCYMAC LCINVERSELANGUAGEOSD HIDEABOUTTIMER >SETSTART/STOPVISIBLE8.1.1 TUNE This feature is used to stabilize the image. An untuned image can be seen as sideways instability or ‘swimming’. The TUNE function has no effect in VIDEO mode. 8.1.2 POSITION Due to minor variations in graphic cards, the horizontal and vertical position may need adjustment. Select POSITION, then press LEFT and use the cursor keys. VGA text mode (720 x 400) is correctly displayed when the image is positioned correctly. 8.1.3 INVERSE This option inverts the image. This setting is not memorized. 8.1.4 FREQUENCY This setting is usually not changed by the user. It is however provided in case of adaptation to special graphic cards that are close to one of those in the compatibility list. Generally, an incorrect frequency setting can be observed as an image too wide or too narrow, combined with vertical, unstable bands. In SVGA mode (compressed 800 x 600) the frequency is set to fit the 800 pixels wide image in 640 positions horizontally.
USER GUIDELCD PROJECTOR26 8.1.5 MAC LC The MACII series of computers are equipped with slightly different graphic interfaces that need manual setup on the RC to work correctly. Default is the MACII standard interface of 640 x 480 resolution. Pressing the MAC key toggles between the MACII LC 640 x 480 mode and the standard mode. An erroneous setting will typically be seen as an image too wide or too narrow, as well as vertical unstable bands. 8.1.6 LANGUAGE A selection of languages is available for the menu options. 8.1.7 TIMER The timer facilitates time control of a presentation. The timer may be set, started, stopped and hidden/displayed. An audible sound indicates timeout (unless sound is muted). SET Select SET, then adjust time using the cursor keys. START/STOP Select START/STOP to start or stop the timer. VISIBLE This function toggles between hide and display of the timer. Visible is default at power-up. 8.1.8 OSD HIDE The OSD may be switched on or off as desired. This setting only affects the remote control operations, not the menu system. This setting is not memorized. 8.1.9 ABOUT The LOGO image is displayed when ABOUT is selected. ABOUT is a toggle function. This setting is not memorized. The LOGO is the image that is shown at power up and when a computer is not connected or not switched on. The menu software revision is displayed in the OSD field when ABOUT is selected.
USER GUIDELCD PROJECTOR27 8.2 THE SOUND SELECTIONSSETUPPICTURESOUNDTREBLEBASSBALANCEMONO8.2.1 MONO Select MONO if the audio source is not stereo, in order to get sound in both speakers. 8.2.2 TREBLE Select TREBLE, then adjust using cursor keys. 8.2.3 BASS Select BASS, then adjust using cursor keys. 8.2.4 BALANCE Select BALANCE, then adjust using cursor keys.
USER GUIDELCD PROJECTOR28 8.3 THE PICTURE SELECTIONSSETUPPICTURESOUNDPALETTE >REAR51232K16,7MCOLORTINTvMCGA8.3.1 PALETTE Usually, the palette is set to display the maximum number of colors available, regardless of application. Some uses may however be better off with a reduced set of colors, or if special effects like 512 colors on live video is desired. Select between 16.7 M, 32K or 512 colors. 8.3.2 REAR The REAR mode is used for rear projection , i.e. projection from the back of a screen, mirroring the image. 8.3.3 MCGA Select MCGA if desired when displaying MCGA (320 x 200) graphics. Deselect MCGA when displaying DOS text. Only applicable in TEXT or MCGA mode. 8.3.4 COLOR Adjust COLOR saturation using the cursor keys. Only applicable when video is connected. 8.3.5 TINT This controls the hue of an image, and is only active in NTSC-video.
USER GUIDELCD PROJECTOR29 9 PRACTICAL HINTS AND TIPS This is a list of what to do when things go wrong. Check the symptoms carefully if you experience any problem. The cure may be at your hands! Always press the RESET key and observe that the LED on the LCD projector is flashing. This indicates that the LCD projector receives signals from the remote control. The projected image is completely white - Check if the cables are connected -Check the ON/OFF key on the remote control The LCD projector does not work -Check if the fuse is broken -Check if the mains cable is attached The projected image is completely black - Check the ON/OFF switch - Check the BLACK switch -Check COMPUTER/S-VIDEO/VIDEO source selection -Check if the SPARE LAMP indicator is on. Both lamps may be defective -The unit may be overheated due to blocked ventilation system. Wait until the unit has cooled down before resuming operation The LCD image is too dark or too light - Check the CONTRAST and BRIGHTNESS settings -Try the RESET key Some colors are unstable or flickering -Try to adjust the CONTRAST, BRIGHTNESS or possibly TUNE The whole LCD image appears unstable or misplaced - Try to adjust the TUNE or POSITION -Alternatively, you are most probably connected to an incompatible computer or video card. See the Features section for frequency adjustment and positioning