Key digital Kd-msw8x4pro User manual

Key Digital®, led by digital video pioneer Mike Tsinberg,

develops and manufactures high quality, cutting-edge

technology solutions for virtually all applications where

high quality video imaging is important. Key Digital®is

at the forefront of the video industry for Home Theater

Retailers, Custom Installers, System Integrators,

Broadcasters, Manufacturers, and Consumers. We pro-

vide total video system solutions because we know and

help drive the technology, the industry, the business,

and all the latest up-and-coming standards. But most

of all, we know exactly what you need for your unique

application - the right solution.

Rev 0 - January 2007

OPERATING INSTRUCTIONS

521 East 3rd Street, Mount Vernon, NY 10553

Phone: 914.667.9700 Fax: 914.668.8666 Web: www.keydigital.com

KD-MSW8x4Pro . . . . . . . . . . . . . . . . . . . . . .8x4 HDTV Matrix Switcher (single base unit)

KD-MSW8x4Pro - 8x8 . . . . . . . . . . . . . . . . .8x8 HDTV Matrix Switcher (2 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro - 8x12 . . . . . . . . . . . . . . . .8x12 HDTV Matrix Switcher (3 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro - 8x16 . . . . . . . . . . . . . . . .8x16 HDTV Matrix Switcher (4 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro - 8x20 . . . . . . . . . . . . . . . .8x20 HDTV Matrix Switcher (5 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro - 8x24 . . . . . . . . . . . . . . . .8x24 HDTV Matrix Switcher (6 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro - 8x28 . . . . . . . . . . . . . . . .8x28 HDTV Matrix Switcher (7 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro - 8x32 . . . . . . . . . . . . . . . .8x32 HDTV Matrix Switcher (8 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro - 8x36 . . . . . . . . . . . . . . . .8x36 HDTV Matrix Switcher (9 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro - 8x40 . . . . . . . . . . . . . . . .8x40 HDTV Matrix Switcher (10 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro - 8x44 . . . . . . . . . . . . . . . .8x44 HDTV Matrix Switcher (11 base units of 8x4 and Cable Kit)

The KD-MSW8x4Pro by Key Digital®is a part of Fat Boy family of switchers. With 8 Inputs and 4 Outputs, the full matrix

non-blocking switcher and distribution amplifier allows each one of the 4 outputs to be seamlessly connected to any

one of the 8 available inputs. The KD-MSW8x4Pro offers the factory installed expansion capability to up to 44 outputs

and professional Fade-to-Black and Audio/Video Muting features. It directly supports component (YPbPr) and RGBHV

video formats, as well as S-Video and Composite video formats (with appropriate cable adapters). Concurrently with

the video, it switches and distributes both PCM coaxial digital audio and analog stereo audio (analog stereo audio is

not available when RGBHV configuration is used). The KD-MSW8x4Pro features volume control functionality for ana-

log stereo audio L/R channels. With analog video bandwidth of up to 300 MHz, the KD-MSW8x4Pro handles all stan-

dard HD and SD video resolutions (at 50 and 60 Hz) including 1080p/60, with no degradation in video quality.

The KD-MSW8x4Pro is simple to operate and control via front panel puttons. The LEDs offer selection monitoring.

The switcher is offered with IR remote control, wired IR and RS-232 control port compatible with all industry standard

control systems. Only operate the KD-MSW8x4Pro HDTV Matrix Switcher Series with the Key Digital®

external Power Supply provided with your unit.

8 Inputs to 4 Outputs HDTV Matrix Switcher with Volume Control

These Operating Instructions apply to the entire

Key Digital

Fat Boy Series line of HDTV Matrix Switchers:

KD-MSW8x4Pro

HDTV Matrix Switcher

KD-MSW8x4Pro Operating Instructions

KDMSW8x4Pro_Manual.qxd 1/17/07 10:54 AM Page 1

Fat Boy Series KD-MSW8x4Pro HDTV Matrix Switcher

8 Inputs to 4 Outputs HDTV Matrix Switcher and Fat Boy Expansion

CAUTION: YOUR BASE KD-MSW8x4Pro

HDTV MATRIX SWITCHER (AND EACH FAT

BOY SERIES EXPANSION UNIT) COMES

WITH ITS OWN EXTERNAL POWER SUPPLY

THAT MUST BE ATTACHED TO EACH UNIT.

CAUTION!

You MUST use the Power Supply

that came with your unit:

+ 6V DC @ 5 Amps, 110-240 VAC, 50-60 Hz

No other Power Supply Adapter can be used with any KD-MSW8x4Pro

unit! Using a Power Supply other than the one(s) provided by Key

Digital with your unit(s) VOIDS THE ENTIRE PRODUCT WARRANTY,

may cause damage to your unit and associated equipment, and is a

potential safety hazard.

KD-MSW8x4Pro Operating Instructions

KDMSW8x4Pro_Manual.qxd 1/17/07 10:54 AM Page 3

Safety Instructions – Please be sure to follow these

instructions for safe operation of your unit

Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s

instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other

apparatus (including amplifiers) that produce heat.

9. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized

plug has two blades with one wider than the other. A grounding type plug has two

blades and a third grounding prong. The wide blade or the third prong is provided for

your safety. If the provided plug does not fit into your outlet, consult an electrician for

replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at plugs, conven-

ience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories specified by the manufacturer.

12. Unplug this apparatus during lightning storms or when unused

for long periods of time.

13. Refer all servicing to qualified service personnel. Servicing is required when the appa-

ratus has been damaged in any way, such as power-supply cord or plug is damaged,

liquid has been spilled or objects have fallen into the apparatus, the apparatus has been

exposed to rain or moisture, does not operate normally, or has been dropped.

Table of Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Basic Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

IR Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Fat Boy Expansion of the Base KD-MSW8x4Pro . . . . . . . . . . . . . . . . . . . . . . . .16

RS-232 Protocol and Commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

How to Contact Key Digital®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

KD-MSW8x4Pro Operating Instructions

KDMSW8x4Pro_Manual.qxd 1/17/07 10:54 AM Page 5

Page 2

KD-MSW8x4Pro Operating Instructions

Introduction

The KD-MSW8x4Pro HDTV Matrix Switcher provides the next gen-

eration in professional Video/Audio switching technology. Perfect

for both the board room and home entertainment applications, this

versatile component is the ideal complement to your video and

audio equipment, making possible the interface and transparent

switching of up to eight (8) separate HDTV source signals simulta-

neously, to as many as four (4) independent video displays. In addition, the KD-MSW8x4Pro

HDTV Matrix Switcher can also switch PCM digital coaxial and/or left and right stereo.

The AV interface is via the BNC type connector array, consisting of eight sets of independent

video/audio inputs and four sets of independent video/audio outputs, each supporting video

formats up to and including 1080P/60.

Typical source components you may need to switch with your KD-MSW8x4Pro HDTV Matrix

Switcher can include the following:

■

DVD Players

■

Electronic game boxes

■

Cable TV, satellite and terrestrial DTV set-top receivers

■

Digital Video Recorders

■

D-VHS, S-VHS and VHS VCR’s

KD-MSW8x4Pro Operating Instructions

Key Features

■

Pristine, crystal-clear switching of ALL your HD and SD analog sources,

even 1080p, out to 300 MHz:

➾ Component Video (YPbPr) or RGBHV Video

➾ Digital PCM or analog stereo audio

➾ BNC connectors

➾ Output video format = Input video format

■

Left and right analog stereo Audio Volume Control feature provided for YPbPr mode

(RGBHV video mode does not support analog audio, only digital PCM).

■

Switch like a pro in the Studio:

➾ All-new “Fade-to-Black” and “Video Muting” features eliminate video “glitches” on your

display when you switch your source

■

Easy to control and operate, you can switch:

➾ Manually, using the front panel pushbuttons and LED indicators

➾ Remotely, using the supplied IR remote control

➾ Using the RS-232 control

■

Instant verification of your switching status, via the convenient front-panel LED’s

■

So versatile, you can even switch S-Video and Composite Video signals (with the appropriate

adapter) from VCR’s, digital video recorders and satellite set-top receivers

■

Massively expandable, the outputs of the 8x4Pro can be incremented in steps of 4, providing an

unheard-of matrix switching capability all the way up to 8x44

➾ Purchase multiple units in kits from Key Digital®to meet your expansion needs,

from 8x4, to 8x8, to 8x12, … to 8x44

Page 1

KDMSW8x4Pro_Manual.qxd 1/17/07 10:54 AM Page 1

Page 4

KD-MSW8x4Pro Operating Instructions

Massively Expandable

These Operating Instructions apply to the entire Key Digital®Fat Boy Series line of HDTV Matrix

Switchers:

KD-MSW8x4Pro 8 x 4 HDTV Matrix Switcher (single base unit)

KD-MSW8x4Pro-8 x 8 8 x 8 HDTV Matrix Switcher (2 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro-8x12 8x12 HDTV Matrix Switcher (3 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro-8x16 8x16 HDTV Matrix Switcher (4 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro-8x20 8x20 HDTV Matrix Switcher (5 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro-8x24 8x24 HDTV Matrix Switcher (6 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro-8x28 8x28 HDTV Matrix Switcher (7 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro-8x32 8x32 HDTV Matrix Switcher (8 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro-8x36 8x36 HDTV Matrix Switcher (9 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro-8x40 8x40 HDTV Matrix Switcher (10 base units of 8x4 and Cable Kit)

KD-MSW8x4Pro-8x44 8x44 HDTV Matrix Switcher (11 base units of 8x4 and Cable Kit)

Technology

As for all Key Digital®products, it’s our custom technology that allows us to deliver the highest

standard of picture quality, like:

LHBC Linear High Bandwidth Circuit

Surface Mount Technology

Multi-Layer Board Technology

Page 3

KD-MSW8x4Pro Operating Instructions

GETTING STARTED

The KD-MSW8x4Pro HDTV Matrix Switcher is capable of switching eight (8) sets of three-wire

component (YPbPr) video and/or five-wire component (RGBHV) video, as well as analog/digital

audio to any or all of the four outputs (typically your displays or projectors). If your source

device has a VGA output connector, you will need a VGA-to-BNC breakout cable. The KD-

MSW8x4Pro HDTV Matrix Switcher is also capable of switching S-Video and composite video

signals (with the appropriate cable adapter) from VCR's, digital video recorders and satellite set-

top receivers. The default video signal format for the KD-MSW8x4Pro HDTV Matrix Switcher is

three-wire Component Video (YPbPr).

Note: Since the KD-MSW8x4Pro Matrix Switcher does NOT perform video processing,

the output video format is the same as the input video format. This means that

the video resolution is not changed and also that if you input one form of video,

for example Component Video, the output will be in exactly the same format.

Open the carton and you will find the following contents:

1. One KD-MSW8x4Pro HDTV Matrix Switcher unit1

2. One +6V DC external Power Supply adapter module2

3. IR Remote Control with batteries included

4. RS-232 cable3(not provided with the base KD-MSW8x4Pro unit stand-alone)

5. Operating Instructions Manual

6. Warranty Card

CAUTION: If you have purchased an expanded configuration of the

Fat Boy series HDTV Matrix Switcher line beyond the base 8x4Pro Matrix

Switcher, the multiple base units will come pre-connected from the factory

with a special cable kit that has been tested for your configuration.

You are advised NOT to disconnect or reconfigure any of these cables.

1These Operating Instructions apply to the entire Fat Boy Series line of massively expandable KD-MSW8x4Pro

HDTV Matrix Switchers. The number of units in your package is listed on the table at the front of these Operating

Instructions for the particular configuration you have purchased. If you have purchased a configuration beyond

the base 8x4 Matrix Switcher, a Cable Kit has already been installed and tested, and you will also find the RS-232

cable that connects to multiple units.

2No other power supply adapter can be used with the KD-MSW8x4Pro unit; you must use the Power Supply

provided! Using a power supply other than the one provided by Key Digital with your unit VOIDS THE

WARRANTY, may cause damage to your unit(s) and associated equipment, and is a potential safety hazard.

3The RS-232 cable is ONLY PROVIDED FOR FAT BOY EXPANSION. If you have purchased the base

KD-MSW8x4Pro HDTV Matrix Switcher, the RS-232 cable is NOT provided.

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KD-MSW8x4Pro Operating Instructions

Setting up your KD-MSW8x4Pro HDTV Matrix Switcher for operation:

Your KD-MSW8x4Pro HDTV Matrix Switcher is easy to configure and operate. In this section,

you will first connect all of your A/V Input and Output devices to your KD-MSW8x4Pro Matrix

Switcher unit.

Connecting A/V Equipment

Connecting A/V equipment to the KD-MSW8x4Pro HDTV Matrix Switcher is straightforward and

accomplished easily via the ergonomic rear panel connector array.

CAUTION: When unpacking the unit, make all hookups and connections

before plugging in the Power Adapter provided with your unit. Do NOT

apply power to the unit until all Video and Audio connections have been

made to your KD-MSW8x4Pro unit(s) from the “Source” devices to the

Display(s) and/or Audio system(s). You MUST use the Power Supply

provided with your unit or you VOID the Key Digital Warranty and risk

damage to your unit and associated equipment.

The KD-MSW8x4Pro HDTV Matrix Switcher is equipped with professional-grade BNC female

connectors. These connectors offer a better match to video cables than do the smaller RCA

connectors, as well as providing a positive bayonet lock when installed. Because not all con-

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

RCA-to-BNC or VGA-to-BNC adapter plugs and/or cable assemblies to interface these various

devices to your high-quality Matrix Switcher.

The video signal format must be considered when making connections to the KD-MSW8x4Pro

HDTV Matrix Switcher. Simply match the A/V device’s output (be it YPbPr “Component” or

RGBHV “VGA” video) to a similar video signal output configuration on the KD-MSW8x4Pro

HDTV Matrix Switcher. In the event that these superior quality output formats are not available

on the device in question, then S-Video and/or composite video may also be interfaced with

the KD-MSW8x4Pro HDTV Matrix Switcher with the use of the appropriate adapters.

The same consideration applies to the audio interfaces. Both analog and digital output options

are provided on the KD-MSW8x4Pro HDTV Matrix Switcher and may be employed appropriate-

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

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

surround sound signals.

Page 5

KD-MSW8x4Pro Operating Instructions

CAUTION: For proper operation of the high quality electrical circuits in

your KD-MSW8x4Pro unit, do NOT “daisy chain” Inputs:

■Each Input of the MSW8x4 has its own 75 Ohm termination

■Do NOT feed a Source to multiple MSW8x4 Inputs without

proper Distribution equipment

Typical Application Example for a base KD-MSW8x4Pro

HDTV Matrix Switcher

RGBHV

Audio

KD-MSW8x4Pro

Plasma/LCD

Plasma

Plasma/LCD

KD-VA5

DVD Player

Component

RGBHV

KD-VA5

DVD Player

Component

RGBHV

Computer

Audio

RS232 Control

Wired IR

Optical IR

Zone 2 Zone 3

Zone 4

Zone 1

*KD-VA5 converts

Component to

RGBHV/VGA

With Component Sources

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KD-MSW8x4Pro Operating Instructions

Page 7

KD-MSW8x4Pro Operating Instructions

Rear panel layout of the KD-MSW8x4Pro Matrix Switcher

CAUTION: Connecting digital audio signals directly

to the analog audio input of a TV monitor or other

display can result in severe damage to its speakers.

The color-coded rear-panel layout illustrates the eight

Inputs and four outputs of the KD-MSW8x4Pro HDTV Matrix

Switcher, as well as the RS-232 control interface.

Note: The Left and Right audio interfaces also double as the

Horizontal and vertical Sync signals, respectively, for the RGB

Video interface.

High-quality Component Video (YPbPr) and “VGA” (RGBHV)

Source Equipment

Some of your source equipment may have an analog video output that is called Component

Video. Component Video is a three-wire video format, with the video signals typically labeled

YPbPr. Another common analog video output format is RGB (like the “VGA” outputs on your

computer), which typically has separate H&V sync signals. The KD-MSW8x4Pro HDTV Matrix

Switcher is the perfect choice for switching Component Video and RGB Video source devices

to your displays.

Example: Connecting a digital TV set-top receiver with Component Video three-wire

YPbPr or “VGA” five-wire RGBHV video Outputs to the KD-MSW8x4Pro HDTV Matrix

Switcher Inputs.

Model #: KD-MSW8x4Pro

YPbPr Component Video

Connect the three-wire green, blue and red YPbPr cables from the set-top receiver of choice,

to the green, blue and red color-coded connectors of any one of the eight input fields of the

KD-MSW8x4Pro HDTV Matrix Switcher. Connect the white and red analog stereo audio cables

from the set-top receiver to the white and orange connectors of the same input field of the KD-

MSW8x4Pro HDTV Matrix Switcher. If a digital audio coaxial output is available on the set-top

receiver, it can then connect to the gray-coded PCM connector on the KD-MSW8x4Pro HDTV

Matrix Switcher.

Connect the green, blue and red connectors from Outputs 1, 2, 3 or 4 on the KD-MSW8x4Pro

HDTV Matrix Switcher to the corresponding component video jacks on your TV or monitor.

Connect the white and orange analog audio jacks from the same output to the corresponding

white and red audio jacks on your TV or monitor. If digital audio is desired from the set-top

receiver, connect a cable from the gray BNC connector in the same chosen output field to your

A/V receiver’s coaxial digital audio input.

CAUTION: To prevent damage to your equipment, do NOT connect the

KD-MSW8x4Pro HDTV Matrix Switcher digital outputs to either of the

analog audio inputs on your TV or monitor!

RGBHV

If the set-top receiver of choice employs RGBHV outputs, a 15-pin ‘breakout’ adapter cable will

need to be used to implement the interface. In this instance connect the red, green and blue

BNC connectors from this adapter cable to the red, green and blue connectors, again on any

one of the eight input fields, of the KD-MSW8x4Pro HDTV Matrix Switcher. Connect the black

and yellow wires from the breakout cable to the white and orange (analog audio input) connec-

tors in the same input field of the KD-MSW8x4Pro HDTV Matrix Switcher.

Now connect the desired RGBHV video signal to your monitor or TV, by connecting the red,

green, blue, white, and orange connectors of any one of the four output fields of the KD-

MSW8x4Pro HDTV Matrix Switcher, directly to the red, green, blue, black, and yellow input

connectors on your monitor or TV. These connectors may also be labeled R, G, B, H, and V. A

second 15-pin breakout cable may be required for certain sets.

Note: It is not possible to use analog audio switching when in RGB mode, because the H&V

sync signals required for the RGB format will occupy the port connectors typically used for the

audio signals. This leaves the option, if desired, of connecting digital audio (PCM) from the set-

top receiver to same input and output fields of the KD-MSW8x4Pro HDTV Matrix Switcher.

This same connection procedure described above applies to any other peripheral

device that one may wish to interface with a desired display medium, including DVD players

and game consoles.

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KD-MSW8x4Pro Operating Instructions

Page 9

KD-MSW8x4Pro Operating Instructions

Lower-quality S-Video (two-wire) or Composite Video (CVBS)

Source Equipment

S-Video

A “breakout” adapter cable is required to connect a satellite receiver, DVR, or S-VHS VCR to the

KD-MSW8x4Pro HDTV Matrix Switcher. This cable is equipped with an S-Video (DIN) plug at

one end and a pair of BNC plugs at the other connected to white and yellow conductors.

Connect the white (Y) conductor to the green BNC connector in the selected input field, and

connect the yellow (C) conductor to either the blue or red BNC connector in the same input

field. Connect the white and red analog stereo audio connectors of the set-top receiver of

choice, to the white and orange connectors in the same input field on the KD-MSW8x4Pro

HDTV Matrix Switcher.

Connect the green BNC connector in the selected output field to the white (Y) conductor of a

second S-video to BNC adapter cable. Connect the blue or red connector to the yellow (C)

conductor. Plug the other end of the adapter cable into the TV or monitor’s S-video input.

Connect the white and red analog stereo audio cable connectors to the white and orange con-

nectors of the same KD-MSW8x4Pro HDTV Matrix Switcher output field. Connect the other

end of the audio cable pair to the white and red analog audio input of your TV or monitor.

Composite Video (CVBS) Connection

Connect the Composite Video connector (yellow) from your VCR or DVR to the green BNC

connector in the selected KD-MSW8x4Pro HDTV Matrix Switcher input field. Connect another

composite video cable from the green BNC connector in the selected output field to your TV or

video monitor. Follow the instructions above for connecting analog audio.

Applying power to your unit

CAUTION: No other power supply adapter can be used with the

KD-MSW8x4Pro unit(s); you must use the Power Supply provided!

Using a power supply other than the one provided by Key Digital

with your unit VOIDS THE WARRANTY, may cause damage to your

unit and associated equipment, and is a potential safety hazard.

Now that the installation is completed, it is recommended to double check all connections

before connecting the external power supply. Once every connection has been verified, plug

the connector of the Power Supply into the power input jack of the KD-MSW8x4Pro.

Carefully insert the Power Supply adapter plug, here

Next, plug the external Power Supply provided with your unit into an appropriate* wall outlet.

*Power Requirements

■

Each unit draws 0.9A,100-240 VAC

■

External power supply provided:

■

+ 6V DC @ 5 Amps, 110-240 VAC, 50-60 Hz

You MUST use the Power

Supply that came with your unit:

+ 6V DC @ 5 Amps, 110-240 VAC, 50-60 Hz

For added safety and protection it is always recommended to use a good quality surge protector.

Always test all connections and final operation first, before sealing cables behind walls

or completing difficult wire routings. Use a reliable “Source” to test your connections (like a

DVD player) before routing or hiding any wires behind walls or ceilings.

KDMSW8x4Pro_Manual.qxd 1/17/07 10:55 AM Page 9

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KD-MSW8x4Pro Operating Instructions

Page 11

KD-MSW8x4Pro Operating Instructions

BASIC OPERATION

A “Matrix Switcher” allows you to select any input device, and have it available on the output

(typically a display) of your selection. For example, not only can you select your DVD player as

the source of video for your enjoyment from your total array of source devices like Set Top

Boxes and DVR’s, but you can also direct the DVD player to appear on your HDTV or any par-

ticular display you have connected to the output of your Matrix Switcher, while you monitor

other sources on other displays under your command.

All input/output combinations are configurable via the front panel pushbuttons and clearly dis-

played by LED indicators for each of the output fields. Switching can be accomplished conve-

niently in any of three ways:

■

Manually, using the front panel pushbuttons and LED indicators

■

Remotely, using the supplied IR remote control

■

Using the RS-232 control

Manual configuration of A/V Inputs and Outputs

Manual routing of video and audio signals from the available inputs to selected outputs is easily

implemented on the KD-MSW8x4Pro HDTV Matrix Switcher using the front panel pushbuttons,

and visually verifiable via the LED indicator array for each of the four output fields.

The front panel of the KD-MSW8x4Pro HDTV Matrix Switcher provides the user with a visual

representation of the four output fields. Each of these four segments consists of a large push-

button and an array of eight LED indicators. Each of these appropriately numbered LED indica-

tors corresponds to one of the eight available inputs.

Once the input source devices and the output displays have been connected to the KD-

MSW8x4Pro HDTV Matrix Switcher they can easily be configured into desired combinations

using these simple pushbuttons.

To switch an A/V device input to the intended one of the four outputs requires depressing the

pushbutton corresponding to the chosen output field, as necessary, until the LED indicator

corresponding to the chosen input is lit. The video and audio sources connected to that input

are automatically switched to the selected output. The KD-MSW8x4Pro HDTV Matrix Switcher

can simultaneously route a single input to all of the four outputs by simply repeating the same

procedure for each of the four output fields.

An “8x4” Matrix Switcher:

Select Video Source #1 to Display A

Select Video Source #7 to Display B

Select Video Source #3 to Display C

Select Video Source #5 to Display D

Video

Source#

Display

Fade-to-Black and Video Mute pro-features

Two new features have been added to this generation of Key Digital®switchers, called “Fade-to-

Black” and “Video Mute.” Both of these features let you switch like a pro, like in a live studio.

The Fade-to-Black feature allows for switching between input/output combinations without

the usual visual signal noise that traditionally accompanies switching between video signals.

The video image momentarily goes to black as the KD-MSW8x4Pro HDTV Matrix Switcher

selects between inputs for the chosen output.

An additional related feature, available on the KD-MSW8x4Pro HDTV Switcher, is the Video

Mute, which enables the user to mute the video signal (the display goes to black) at the chosen

output.

IR REMOTE CONTROL

The KD-MSW8x4Pro HDTV Matrix Switcher can be operated remotely using the supplied

infrared (IR) remote control. As many as fifteen individual KD-MSW8x4Pro HDTV Switchers can

be addressed by the same remote control using the few simple functions designed into the system.

Video & Audio Mute

& Restore Keys

Output Select

OFF

Numeric Keypad

Analog Audio Volume

Control / AV Mute &

Unmute

Increase / AV Mute

Decrease / AV Unmute

Command Keys

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KD-MSW8x4Pro Operating Instructions

Selecting input and output combinations with the IR Remote

Configuring a particular unit (the Fat Boy series allows multiple units of the KD-MSW8x4Pro

base unit operate together for installations requiring more than 4 displays*) with the desired

input and output combination requires the following successive steps:

1. Addressing desired Unit:

Depress numerical digits 01 to 15 (16 is the default address of the stand alone / base

unit and does not require selection)

2. Addressing desired Output:

Depress Output 1 to 4 keys

3. Addressing desired Input:

Depress numerical digits 1 to 8

*Note: The KD-MSW8x4Pro HDTV Switcher is massively expandable in increments of four (4)

Outputs by purchasing multiple units from Key Digital®that have been pre-wired and configured

with a special cable kit. For example, by combining as many as 11 base 8x4 units together,

offers the KD-MSW8x4Pro-8x44 HDTV Matrix Switcher package that provides 8x44 Matrix

Switching (that is, any of 8 inputs to up to as many as any of 44 outputs). For such applica-

tions, each unit must be addressed separately unless the system is under RS-232 control.

Volume Control

An analog audio volume control feature for the left and right analog stereo audio is provided for

the YPbPr mode (RGBHV video mode supports only digital PCM audio without the volume

control).

The IR remote control provided with the KD-MSW8x4Pro has four volume control buttons:

Output 1, Output 2, Output 3 and Output 4 volume selection

Listed below are the remote control functions that support audio volume control for Output 1.

The same IR functions apply to control the Output 2, 3 and 4 volume control.

Adjust Output 1 L&R analog audio volume:

■

Increase the volume: press IR Output 1 volume selection button –> UP arrow button

■

Decrease the volume: press IR Output 1 volume selection button

–>

DOWN arrow button

Default:

To set Output 1~4 volume back to default (0 dB):

press Output 1~4 volume selection button –> U3 button

Mute:

■

Mutes Output 1~4 analog audio: press Output 1~4 volume selection button

–>

U1 button

■

Turn off audio mute: press Output 1~4 volume selection button –> U2 button

Audio/Video Mute

1. Addressing desired unit: Same as above

2. Depress R1 key (LED array begins to flash)

3. Depress Output 1~4 for output selection (U4 selects all outputs). The five-second

window, within which to make selection, is indicated by the flashing LED array.

4. Using UP and Down arrows, Mute (UP) or Un-mute (DOWN) Video output

I/O Video Signal Formatting

1. Press R1

2. Depress numerical digits 7 to select RGBHV mode or 8 to return to YPbPr mode

(default)

IR Remote Lockout toggle sequence

This function, once enabled, requires that any command is preceeded by "R2" key.

Enabling and disabling Lockout functionality is accomplished via "R3" key:

Press and hold "R3" once to enable, press and hold "R3" again to disable.

Flashing front panel LEDs indicate that the command has been accepted.

Example of use when IR Remote Lockout is enabled:

1. Depress and release R2 key

2. Set any I/O combination as described in “Setting input and output combinations”

in this section

Example of use when IR Remote Lockout is disabled:

1. Simply set any I/O combination as described in “Setting input and output combinations”

in this section

IR Timing

The minimum timing interval between IR commands is 0.5 seconds.

Note: Exception is input switching commands. For input switching commands the minimum

timing interval between successive IR commands is determined by the Fade-to-Black period

set via RS-232.

The minimum period here is the greater of the two: 0.5 sec or Fade-to-Black interval.

Please see Fade-to-Back Interval Set command in the RS-232 protocol section of this manual

for more information.

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FAT BOY EXPANSION OF THE BASE KD-MSW8x4Pro

The Application Example provided earlier serves to illustrate the versatility of the KD-MSW8x4Pro

HDTV Matrix Switcher, as the ideal interface device for virtually all user video and audio equip-

ment input and output configuration needs. Additionally the KD-MSW8x4Pro HDTV Matrix Switcher is

expandable to as many as 44 configurable outputs, allowing for even greater input/output flexibility for

the given eight input fields. The expansion feature is factory installed and shipped to the consumer as

a pre-wired combination of two or more KD-MSW8x4Pro HDTV Matrix Switchers.

CAUTION: If you have purchased an expanded configuration of the

Fat Boy Series HDTV Matrix Switcher line beyond the base 8x4Pro Matrix

Switcher, the multiple base units will come pre-connected from the facto-

ry with a special cable kit that has been tested for your configuration.

You are advised NOT to disconnect or reconfigure any of these cables.

The KD-MSW8x4Pro HDTV Matrix Switcher is available in the following expansion packages,

configured to provide input/output combinations ranging from 8x8 up to 8x44 (eight inputs x

forty-four outputs).

The entire Key Digital Fat Boy Series line of HDTV Matrix Switchers