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KD-MSW4x2Pro Operating Instructions

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KD-MSW4x2Pro Operating Instructions

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Connecting the Video and Audio Inputs and outputs

Decide on a safe location to place or mount the KD-MSW4x2Pro. Provide enough space for 

sufficient airflow and ventilation, especially if the unit is left “On” most of the time.  

Connecting A/V Equipment

Connecting A/V equipment to the KD-MSW4x2Pro HDTV Matrix Switcher is straightforward and 

easily accomplished via the ergonomic rear panel connector array.  Because not all consumer 

equipment marketed today uses BNC connector interfaces, it may be necessary to employ adapter 

plugs and/or cable assemblies to interface these various devices to the unit.
The video signal format must be considered when making connections to the KD-MSW4x2Pro 

unit.  Simply match the A/V device’s output (namely YPbPr “Component” or RGBHV “VGA” video) 

to a similar video signal output configuration on the KD-MSW4x2Pro.  S-Video and/or composite 

video may also be interfaced with the unit, using appropriate adapters available separately.
The same consideration applies to the audio interfaces.  Both analog and digital audio output 

options are provided on the KD-MSW4x2Pro.  Use the appropriate format, such as analog audio 

when connecting directly to the audio inputs of a video monitor; or digital audio, when connecting 

instead to an A/V receiver having coaxial digital (PCM) interfaces for decoding surround sound 

signals.

Do not connect the external supply (provided) to the back 
of the KD-MSW4x2Pro unit until ALL of your video and audio 
connections are completed.

Test for proper operation of the unit, interconnections, and cables before  
final installation of cables behind walls or ceilings. The output stage of the  
KD-MSW4x2Pro is capable of driving high-quality, equal-length video cables up  
to 300’ or more.

CAuTIon:  For proper operation of the high quality electrical circuits in 
the KD-MSW4x2Pro unit, do noT "daisy chain" inputs:

Each input of the KD-MSW4x2Pro has its own 75 

Ω

 termination

Do noT feel a source to multiple KD-MSW4x2Pro inputs without 
proper distribution equipment

CAuTIon:  The output stage of the KD-MSW4x2Pro can drive high-
quality length video cables up to 300' or more. Be sure to use high-
quality cables like those available through Key Digital

.  Always ensure 

cables for each output are equal in length for each video component.

CAuTIon:  Connecting digital PCM audio signals directly to the analog 
audio input of a TV monitor, display, or other device can result in 
severe damage to its speakers.

The 4 Input Ports and the 2 output Ports are Configured Identically

The Port configurations are the same for the 4 Input Ports and the 2 Output Ports.  Each Port is 

comprised of six (6) BNC connectors:  

Connect up to four video and audio sources to the BNC connector Input Ports of the  

KD-MSW4x2Pro: 

Digital PCM audio is available with either YPbPr or RGBHV video
Analog stereo audio is available with YPbPr video but not RGBHV video, unless the sync is on 

green (G)

Connect up to two displays to the BNC jack Output Ports of the KD-MSW4x2Pro.  The audio 

outputs from the product can be connected to the audio inputs of the display, or separate 

surround sound or other audio systems.  
Fat Boy expansions:

If purchased as a Fat Boy expansion, connect the appropriate number of outputs to all of the 

pre-wired units.

Video

Audio

Component Video Applications

Inputs and Outputs

RGBHV Video Applications

Inputs and Outputs

Pr

Y

Pb

Left (L)

Right (R) Digital

PCM

R

G

B

H

V

Digital

PCM

Component Video

RGBHV Video

Analog

Stereo

Audio

Digital

Audio

Digital

Audio

If video sync is

on Green (G), then

Analog Stereo Audio

is also supported

here in place of H&V 

Note:  The left and right analog stereo audio interfaces also double as the horizontal and vertical sync signals 
(respectively) for the RGB video interface.

MSW4x2Pro_Manual.indd   16-17

8/23/06   4:10:23 PM

Summary of Contents for KD-MSW4x2Pro

Page 1: ...inputs can be separately and seamlessly switched with the professional Fade to Black and Video Muting features It supports both component video YPbPr and RGBHV video formats and S Video and composite...

Page 2: ...ght analog audio channels Typical source input devices that can be matrix switched with the KD MSW4x2Pro include DVD players and changers Cable TV satellite and terrestrial Set Top Boxes STBs Digital...

Page 3: ...o the back of the KD MSW4x2Pro unit until ALL of your video and audio connections are completed Video Audio Component Video Applications Inputs and Outputs RGBHV Video Applications Inputs and Outputs...

Page 4: ...32 Video and Audio Mute Video and Audio Mute enables the user to mute the audio and video signal the display goes to black at the chosen output using the RS 232 see the RS 232 Command List or IR remot...

Page 5: ...ions With analog video bandwidths up to 300 MHz it handles all HD and SD resolutions 50 and 60 Hz including 1080p 60 with no degradation in video or audio signal quality Since the KD MSW4x2Pro perform...

Page 6: ...it towards the IR sensor on the product to be controlled L Left The Left channel of an analog stereo pair Left and Right LED LEDs light emitting diodes are like small light bulbs that light up to indi...

Page 7: ...hen installing the KD MSW4x2Pro unit make all video and audio hookups and connections before plugging in the external power supply provided Do NOT apply power to the unit until all video and audio con...

Page 8: ...ive the Plasma and the DVD player to drive the LCD or any other combination It is also possible under RS 232 control to allow any one of the four inputs to be switched and distributed to both outputs...

Page 9: ...t External power supply connector Examine the Front and Rear Panels Become familiar with the front and rear panels of the KD MSW4x2Pro unit Front Panel The front panel contains the pushbutton selectio...

Page 10: ...r proper operation of the high quality electrical circuits in the KD MSW4x2Pro unit do NOT daisy chain inputs Each input of the KD MSW4x2Pro has its own 75 termination Do NOT feel a source to multiple...

Page 11: ...to the L and R connectors of the same Input Port of the KD MSW4x2Pro unit If a digital audio coaxial output is available on the set top receiver it can then connect to the PCM connector on the KD MSW4...

Page 12: ...tors Connect the white Y conductor to the G BNC connector of the selected Input Port and connect the yellow C conductor to either the B or R BNC connector in the same input field Connect the white and...

Page 13: ...s the IR remote control provided with the KD MSW4x2Pro unit Wired IR A rear panel wired IR serial connector is provided for use with an IR Extender like one provided by Xantech Connect the wired IR Ex...

Page 14: ...dividually addressable Configuring a particular unit with the desired input and output combination requires the following successive steps Addressing desired Unit Depress button 1 through 8 to select...

Page 15: ...arate On and Off pushbuttons In the power off mode all front LEDs are Off and the video outputs are muted Single Unit Operation The KD MSW4x2Pro can be used as a stand alone 4 to 2 HDTV Matrix Switche...

Page 16: ...desired Unit Press numerical digits 1 to 8 9 is the default address of the stand alone base unit and does not require selection Addressing desired Output Press buttons output 1 or output 2 Addressing...

Page 17: ...Commands and Protocol The KD MSW4x2Pro 4 to 2 HDTV Matrix Switcher can also be remotely controlled via its RS 232 port by systems such as Crestron AMX ELAN and Control4 utilizing industry standard co...

Page 18: ...play goes to black at the chosen output Note The following Technical Specifications are for a base KD MSW4x2Pro HDTV Matrix Switcher The Technical Specifications for Fat Boy expansion configurations s...

Page 19: ...s Input Output Ports and Formats The output format the format of the selected input source Each Input and Output Port is comprised of six 6 BNC connectors 3 analog video connectors 2 analog audio conn...

Page 20: ...com Warranty All Key Digital products are built to high manufacturing standards and should provide years of trouble free operation They are backed by a limited two year parts and labor warranty Connec...

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