Key Digital FatBOY KD-MSA8X8 Operating Instructions Manual

521 East 3rd Street, Mount Vernon, NY 10553

Phone :: [phone] Fax :: [phone]

Web :: www.keydigital.com

KD-MSA8X8 Operating Instructions

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

provide

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 – Sept. 2007

The KD-MSA8X8 is a full matrix audio switcher capable of integrating up to 8 inputs or
sources with 8 outputs or zones. The unit directly accepts analog and PCM digital audio
signals and is capable of switching all popular encoded (AC3, DTS etc.) signals as well.

Operating Instructions

KD-MSA8X8

Audio Matrix Switcher capable of switching up to

8 L/R/Digital PCM Audio Sources/Inputs to

8 independent Zones/Outputs

KD-MSA8x8_Manual.indd 2-1 9/4/07 12:22:25 PM

KD-MSA8X8 Operating Instructions

Page 2

KD-MSA8X8 Operating Instructions

Page 1

Table of Contents

Introduction

About the KD-MSA8X8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Audio Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Additional Key Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Installation and Operation

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Rear Panel Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Front Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Front Panel Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

IR (Remote Control). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

RS-232 Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

RS-232 Codes for KD-MSA8X8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Firmware Update Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Important Safety Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

How to Contact Key Digital®. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

© 2007 Key Digital, Inc. All rights reser ved.

Always follow the instructions provided in this Operating Manual.

Quick Setup Guide

Begin with the KD-MSA8X8 and all input/output devices turned off
with power cables removed

Connect audio sources to appropriate input ports on the KD-MSA8X8
Connect audio outputs to amplifier, display or other receiving device
Connect power to the KD-MSA8X8 as well as all other input and output

devices and turn them on

Operate KD-MSA8X8 switcher via front panel buttons, IR remote, serial IR or RS-232 control

1.

2.

3.

4.

5.

L/R + PC

M

L/R + PC

M

L/R + PCM

L/R + PC

M

L/R

Audio

L/R

Audio

L/R

Audio

L/

R

A

udi

o

DVD Player

Cable TV

Sat. Radio

CD Player

Computer

CD Player

AM/FM Tuner

iPod

L/R

Audi

o

L/R

Audi

o

L/R

Audi

o

L/R

Audi

o

L/

R

Audi

o

L/R

Audi

o

5.

1

Sur

roun

d

5.

1

Sur

roun

d

RS232 Control

Optical IR

Optical IR

KD-MSA8X8

Serial IR

Zone 4

Zone 5

Zone 6

Zone 7

Zone 8

Zone 3

Zone 2

Zone 1

KD-MSA8x8_Manual.indd 2-1 9/4/07 12:22:32 PM

KD-MSA8X8 Operating Instructions

Page 2

KD-MSA8X8 Operating Instructions

Page 3

Introduction

About the KD-MSA8X8

The KD-MSA8X8 is a full matrix audio switcher capable of switching 8 inputs to 8 outputs. The
idea behind a full matrix switcher is the fact that any input, or source, is available on any output,
or zone, at any time. Likewise, the switcher can also be used as a distribution amplifier when all
outputs are fed from the same source input.

The unit will line level analog audio signals and PCM digital audio signals. Multi-channel surround
signals such as 5.1 are also accommodated by using two inputs and two outputs for every source
and zone (see page 4). This yields the capability of switching 4 inputs to 4 outputs. There is no
‘conversion’ process, therefore analog input yields analog output, digital input yields digital output
and encoded signals are passed through the unit without decoding.

Control of the KD-MSA8X8 is through front panel push buttons, IR remote, serial IR or RS-232.

Audio Connections:

Input

Analog: Stereo line level

(8) [RCA style connectors]

-or­Multi-channel analog surround*
(4) [RCA style connectors]

Digital: PCM coaxial digital audio**

(8) [RCA style connectors]

* Multi-channel analog surround signals accommodated using two input ports and two output ports, thereby creating a

4X4 surround matrix switcher.

**The digital audio path can also pass encoded signals such as AC3, DTS, etc….

Additional Key Features:

Front panel LED input/output assignment confirmation

Easily controlled via IR remote (included) with discrete codes, Serial IR, and RS-232

RCA style connectors for ease of installation

Slim 1U Rack chassis for space conservation

Accessories

External 6 Volt DC 6.6 Amp switching power supply (for 110V-240V 50/60Hz applications)

IR Remote control with two batteries

Operating Instructions

›

›

›

›

›

›

›

Output

Analog: Stereo line level

(8) [RCA style connectors]

-or­Multi-channel analog surround*
(4) [RCA style connectors]

Digital: PCM coaxial digital audio**

(8) [RCA style connectors]

INSTALLATION AND OPERATION

Mounting

Rack mount: Secure the rack ears to each side of the KD-MSA8X8 with the supplied hardware.

Then, fasten the unit to the rack rails with the included machine screws.

Figure 2: Rack mounting the KD-MSA8X8

Rear Panel Connections

All connections to the KD-MSA8X8 are found on the rear panel of the unit. Refer to the drawing
below for port assignments while making connections.

2. Power Button

3. IR eye and
serial IR port

5. Power Connections

4. Programming Switch

6. RS-232 Connector

1. Audio Inputs

Figure 3

KD-MSA8x8_Manual.indd 2-3 9/4/07 12:22:37 PM