FEATURES

nQuad-standard decoder– The System 4LQxi is com- patible with all standard video formats including NTSC 3.58, NTSC 4.43, PAL and SECAM.

nBuilt-in line quadrupler– The System 4LQxi includes a built-in line (scan) quadrupler which eliminates scan lines on video images by quadrupling the number of lines displayed. The input video (15.7 kHz) is con- verted to a 63 kHz RGB line quadrupled analog sig- nal– especially useful for large screen displays.

nThree-line adaptive comb filter– A built-inthree-line adaptive comb filter helps provide crisp, stable output from the System 4LQxi.

nMotion mode compensation– The System 4LQxi line quadrupler has motion mode compensation to eliminate the "jaggies” which are commonly associated with enhanced video such as and line quadrupling.

nUniversal inputs– The System 4LQxi has four uni- versal inputs capable of accepting all computer RGB signals, composite video and S-Video standard signals (NTSC, PAL and SECAM). No optional modules are needed for each input signal type. Looping capabilities allow for up to 22 inputs.

nBalanced/unbalanced stereo audio inputs– Every System 4LQxi is capable of switching up to four bal- anced or unbalanced stereo audio signals. Input through professional captive screw terminals, audio can be switched to follow any video or RGB input sig- nal or “broken away” for maximum flexibility.

nTriple Action Switching™ (RGB delay switching)– Exclusive to Extron, this unique delay switching fea- ture in the System 4LQxi makes it possible to have “seamless” switching for all projector models. This is done by a triple-action switch. When an input is selected (either by front panel or RS-232), the RGB video is turned “off” and sync is left on, then sync is switched to the new source and finally, RGB video is turned back “on.” This makes “glitch free” switching possible with every projector on the market.

nLCD menu-driven picture and programming con- trols– The System 4LQxi has an LCD menu that makes set-up and programming of its many features or functions simple. An alpha-numeric display allows for any of the line quadrupler controls such as color, hue, contrast and detail to be adjusted and stored in memory for each input.

nPicture control memory– Each input has a separate memory block for all picture controls of video or RGB signals (including audio switching). These may be set and stored by the System 4LQxi.

FEATURES (Cont.)

nSync polarity programming– The output sync polarity of the System 4LQxi may be programmed to be either posi- tive or negative going for both horizontal and vertical sync signals, ensuring that any projector will differentiate the line quadrupler’s output from that of a 1280 x 1024 SUN or SGI work station.

nUniversal projector control– Extron’s System 4LQxi is fully compatible with all digitally controlled projectors. Using the projector-brand remote control, the System 4LQxi can be made to switch inputs, power “on” or “off” the projector, mute the audio or video signals and switch the four inputs. This may also be accomplished by using the System 4LQxi front panel controls or through a third party control system via RS-232, in order that the switch- er is able to “talk” to the projector.

nUniversal compatibility– The System 4LQxi communi- cates using the projector manufacturer's remote control with all digitally controlled projectors on the market today such as Ampro, Barco, Electrohome, Hughes/JVC, Mitsubishi, NEC, Panasonic, Runco, SELECO, Sony and Toshiba as well as the Mitsubishi XC Series monitors.

nRS-232 control– The System 4LQxi has built-in RS-232 control for third party control of any of its features or functions. Extron has also developed a free Windows® based control program which allows the 4LQxi to be con- trolled by a remote PC.

n300 MHz RGB video bandwidth– The 300 MHz (-3 dB) bandwidth of the System 4LQxi allows for the connection of video signals and super high resolution computers such as SUN, Silicon Graphics, VESA, MAC/Quadra, SuperVGA, PowerMAC, Power PC, HP, NCD, Chromatics and DEC workstations. This ensures the highest resolution possible for any application.

nRGBS or RGBHV output– The System 4LQxi converts all video inputs to an RGB output. This one output (RGBS or RGBHV) makes the System 4LQxi easy to connect all video signals to any projector brand through one cable.

n1U rack-mountable enclosure– The System 4LQxi is housed in a metal 1U high, rack-mountable enclosure, with an internal auto-switchable100-240 volt auto- switchable power supply. Enclosure includes rack “ears” and hardware.

nTriple-split screen mode– Extron’s System 4LQxi has a triple-split screen mode that displays TSC/PAL/SECAM, line doubled video and line quadrupled video simultane- ously on the same display. This provides the opportunity of showing the advantages of image purity and brightness when using a line quadrupler.

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Extron electronic System 4LQ xi manual Features