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KD-MSW4x2 Operating Instructions
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KD-MSW4x2 Operating Instructions
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Table of Contents
Quick Setup Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Terminology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Matrix Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
What’s Included. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Quick Facts About the KD-MSW4x2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Examine the Front and Rear Panels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Connecting the Video and Audio Inputs and Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
Detailed Input/Output Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Control Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Applying Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
IR Remote Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
RS-232 Commands and Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Technical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
How to Contact Key Digital
™
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© 2006 Key Digital, Inc. All rights reserved.
Quick Setup Guide
Basics Facts About the KD-MSW4x2
The KD-MSW4x2 is a 4-Input to 2-Output video and audio matrix switcher and distribution
amplifier. Each of its two distinct outputs can be used to drive two separate displays and audio/
surround sound systems. One of up to four source input devices can be independently and
separately selected to drive each of the two displays and audio systems. The product provides
professional-grade switching, with the Fade-to-Black and Video Mute features, preventing image
glitches when switching between sources.
Typical source input devices that can be matrix switched with the KD-MSW4x2 include:
DVD players and changers
Cable TV, satellite, and terrestrial Set Top Boxes (STBs)
Digital Video Recorders (DVRs)
D-VHS, S-VHS and VHS VCR’s
Electronic game boxes
Personal Computers (PCs)
The KD-MSW4x2 handles all HD and SD resolutions, and is compatible with all standard analog
video signal formats, including:
1080p, 1080i, 720p, 576p, 576i, 540p, 480p, 480i
50 Hz or 60 Hz refresh rates
The KD-MSW4x2 performs no video or audio processing, and supports video bandwidths up to
300 MHz. Its output stage drives high-quality, equal-length video cables up to 300’ or more. The
output formats and resolutions are identical to those at the input to the unit.
The KD-MSW4x2 uses RCA jacks for video and audio inputs and outputs, and supports both
component video (YPbPr) and RGBHV video formats; as well as S-Video and composite video
(CVBS), with adapters. Along with the video, it concurrently switches and distributes PCM coax
digital audio, and analog stereo audio (for YPbPr operation only).
The KD-MSW4x2 has four (4) Input Ports and two (2) Output Ports. Each Input Port and Output
Port is comprised of six (6) color-coded RCA jacks:
3 analog video connectors (YPbPr or RGB, shared as Pr/R Y/G Pb/B)
2 analog audio connectors (Left and Right stereo pairs)
The analog audio input/output connectors also serve as the horizontal (H) and vertical (V) sync
for RGBHV signals
1 PCM digital coax audio connector
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If the user or installer is familiar with Video/Audio Matrix Switching and Distribution,
then the following Quick Setup Guide can be used as a shortcut.
It is recommended
to always follow all the detailed instructions provided in this entire Operating Manual
to properly hook-up, operate, and control the KD-MSW4x2 product.