Key Digital KD-MSW4X2 Connecting the Video and Audio Inputs and Outputs, Connecting A/V Equipment

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KD-MSW4x2 Operating Instructions

Connecting the Video and Audio Inputs and Outputs

Decide on a safe location to place or mount the KD-MSW4x2. Provide enough space for sufficient airflow and ventilation, especially if the unit is left “On” most of the time.

Do not connect the external supply (provided) to the back of the KD-MSW4x2 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-MSW4x2 is capable of driving high-quality, equal-length video cables up to 300’ or more.

Connecting A/V Equipment

Connecting A/V equipment to the KD-MSW4x2 HDTV Matrix Switcher is straightforward and easily accomplished via the ergonomic rear panel connector array. Because not all consumer equipment marketed today uses RCA 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-MSW4x2 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-MSW4x2. 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-MSW4x2. 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.

CAUTION: The output stage of the KD-MSW4x2 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: For proper operation of the high quality electrical circuits in the KD-MSW4x2 unit, do NOT "daisy chain" inputs:

➔Each input of the KD-MSW4x2 has its own 75 Ω termination

➔Do NOT feel a source to multiple KD-MSW4x2 inputs without proper distribution equipment

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.

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KD-MSW4x2 Operating Instructions

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) color-coded RCA connectors:

›Connect up to four video and audio sources to the RCA jack Input Ports of the KD-MSW4x2.

➔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 RCA jack Output Ports of the KD-MSW4x2. The audio outputs from the product can be connected to the audio inputs of the display, or separate surround sound or other audio systems.

Component Video Applications			RGBHV Video Applications
Inputs and Outputs			Inputs and Outputs
Component Video				RGBHV Video
Pr	Y	Pb	R	G	B

Video

Audio

Left (L) Right (R) Digital			H	V	Digital
		PCM	If video sync is		PCM
	Analog	Digital	on Green (G), then		Digital
	Stereo	Audio	Analog Stereo Audio		Audio
			is also supported
	Audio
			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.