Key Digital Xplosion Series KD-SCDA8 Manuale utente

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It is suggested that all users always check our web site for the latest version

of this Users Manual at www.keydigital.com under Literature, User Manuals.

OPERATING INSTRUCTIONS

Model KD-SCDA8

The KD-SCDA8 Distribution Amplifier (DA) by Key Digital:

- Provides economical signal distribution from any one (1) Composite Video (CV) and S-Video source,

to up to eight (8) independent Composite Video and S-Video destinations

- Distributes analog (Left and Right stereo pair) or digital PCM audio

- Provides a convenient A/V and power input/output Throughput for ease of daisy-chaining the input to

another device; or you can use the Throughput as an additional DA output, bringing the total outputs

to nine (9)

- Simultaneously distributes Composite Video, S-Video, and Audio

- Drives cable runs up to 300 feet long with crystal-clear quality

- Is easily cascaded to other KD-SCDA8 units, thereby permitting the installer to drive as many outputs

as desired from one source, without any appreciable signal degradation

An 8-Channel Output Composite Video and S-Video

Distribution Amplifier (DA) with analog or digital PCM

audio, and throughput output for daisy-chaining

INCLUDED WITH YOUR DISTRIBUTION AMPLIFIER

Open the carton and you will find the following contents inside:

KD-SCDA8 Distribution Amplifier unit

External Power Supply, rated for +5 Volts at 1.0 Amp

This Instruction Manual

Warranty Card

INTRODUCTION

The KD-SCDA8 Distribution Amplifier (DA) by Key Digitalprovides

economical signal distribution from any one (1) Composite Video

(CV) and one (1) S-Video source to up to eight (8) Composite Video

and eight (8) S-Video destinations. It also distributes analog (Left

and Right stereo pair) or digital PCM audio. Composite Video, S-Video,

and Audio can be distributed simultaneously, on cable runs up to 300

feet long.

A convenient A/V and power supply Throughput output permits daisy-

chaining the input to another device; or you can use the Throughput

as an additional DA output, bringing the total outputs to nine (9).

This gives you the capability to drive as many outputs as desired

from one source, without any appreciable signal degradation.

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HOW TO CONTACT KEY DIGITAL

Repairs and Warranty Service:

Should your KD-SCDA8 Automatic Switcher require warranty service, please contact Key Digitalfirst to

obtain a Returned Materials Authorization (RMA) number

Please contact us at either:

Toll-free 1-203-778-0295 extension 3#

email [email protected]

Technical Support:

For technical questions about using our products, please contact us at either:

1-203-778-0295 or Toll-free 1-888-258-2028

email [email protected]

Customer Support:

For customer support questions about using our products, please contact us at either:

1-203-778-0295

email [email protected]

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.

Getting Started

First, understand the basic operation of the Distribution Amplifier.

The KD-SCDA8 Distribution Amplifier allows you to take a Composite

Video baseband signal, and/or an S-Video signal, and distribute it to

up to eight (8) separate destinations. The high-quality and state-of-

the-art electronic circuitry inside each Distribution Amplifier unit pro-

vides crystal-clear distribution from the source (Input) to up to eight

(8) or more destinations (up to 300 feet away). Of course, the signal

quality at the destination is always limited by the quality of your

input signal.

Your KD-SCDA8 Distribution Amplifier can simultaneously distribute

Composite Video and S-Video, because there are separate

Input/Output jacks for EACH format. Also, separate Left and Right

stereo analog audio jacks are provided, which allow you to drive one

input audio pair to up to eight (8) destinations. You may substitute

digital PCM audio for the Left and Right analog audio.

The unit runs on an external power supply, included with your unit.

An intelligent feature of your KD-SCDA8 Distribution Amplifier is the

“Throughput” output port. The “Throughput” output looks just like the

other eight (8) outputs from your DA — indeed it can be used as an

additional output, bringing the total distribution to nine (9) outputs.

However, if you need to “daisy-chain” (cascade) multiple Distribution

Amplifier units, then the “Throughput” output can be used as the

“Input” to the second KD-SCDA8 unit. You can cascade multiple units

this way, allowing you to distribute your signals to 16 or more desti-

nations. In addition, the power supply is also available as a

“Throughput” output (adjacent to the A/V output jacks), thereby

allowing you to use one heavy-duty power supply on the first KD-

SCDA8 unit, and feeding the power along with the “Throughput” A/V to

the daisy-chained units.

Setting Up Your Distribution Amplifier (“DA”) for Operation

The KD-SCDA8 Composite Video and S-Video Distribution Amplifier (DA)

is easy to configure and operate.

1. First, find a safe and convenient location for the DA. There

are flanges on each side of the metal case so the unit can be

bolted into position, if desired.

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Mounting Flanges

2. Connect the external 5 Volt DC supply into the DA. Run the

power cable safely to an appropriately-rated electrical outlet.

Use the 1 A supply (provided) for single-unit operation. Be

sure to use the 5 Amp, heavy-duty supply available from Key

Digital‚if you are daisy-chaining multiple KD-SCDA8 units.

3. Note that your KD-SCDA8 Distribution Amplifier has an

Audio/Video Input/Output Panel. For ease-of-use, each

Input/Output Group on the panel is configured the same:

•Three (3) color-coded, female RCA jacks, one each for:

-“CV” = Composite Video

-“L” = Left Analog Audio (or Digital PCM Audio)

-“R” = Right Analog Audio (or Digital PCM Audio)

•One (1) S-Video female jack

This panel is comprised of:

•ONE (1) Input Group, Audio, Video, and Power, labeled “Inputs”

•EIGHT (8) Output Groups, exactly the same configuration as the

Input A/V, labeled “1” through “8”

Color-coded female RCA jacks

S-Video

External +5V Power Supply In

CV = Composite Video

L= Left Analog Audio, or Digital PCM Audio

R= Right Analog Audio, or Digital PCM Audio

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•“Throughput” and power supply drive Outputs, exactly the same

as the Input/Output A/V, can be used to daisy-chain to

additional Distribution Amplifier unit’s input (also supplies

power), or as a ninth DA output

4. Determine your configuration Input requirements:

•Run the A/V Inputs to the DA: you can simultaneously input

Composite Video, S-Video, Left and Right Analog Audio or Digital

PCM Audio

•You do not need to simultaneously utilize the Composite Video,

S-Video, and Audio inputs – simply use the format(s) you

require

•The inputs are terminated internally

5. Determine your configuration Output requirements:

•You have up to NINE (9) outputs available to drive your displays

or other destination devices

•You do not need to use all the outputs – simply use the number

and formats you need

•If you need more than nine (9) outputs, then you can use the

“Throughput” output to drive the input of a second KD-SCDA8

unit, and also feed forward the power (be sure to use a 5

Amp-rated input power supply, available separately from

Key Digital)

•Run the A/V Outputs from your DA: you can simultaneously

output Composite Video, S-Video, Left and Right Analog Audio or

Digital PCM Audio

•Cable runs can be up to 300 feet, without appreciable signal

loss

•Terminate appropriately at the end of each run

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TECHNICAL SPECIFICATIONS

An 8-Channel Output Composite Video and S-Video

Distribution Amplifier (DA) with analog or digital PCM

audio, and throughput output for daisy-chaining

General

• Model KD-SCDA8: 8-output Composite Video or S-Video, Analog (Left & Right) or

PCM Audio Distribution Amplifier (DA), with output Throughput feature

• “Plug and Play” – requires no configuration

• Enables simultaneous signal distribution from any Composite Video (CV) or S-

Video source:

-Composite Video (CV)

-S-Video

-Analog (standard line-type Left & Right pairs) or digital PCM Audio

• One unit can drive up to eight (8) independent devices:

-Composite Video (CV) and S-Video

-Output = Input

-Throughput can be used as additional output, to bring the total to nine (9)

output drives

• Also has a Throughput output:

-Can daisy-chain the analog video (Composite Video and S-Video) and analog

or digital audio inputs to another device via the Throughput

-Throughput can also serve as a ninth DA output

• Can be cascaded to other KD-SCDA8 DA’s to drive as many outputs as desired

from one source

• Can drive CV (Composite Video) and S-Video cables, up to 300 feet each

Inputs

• There is one (1) Input Group, consisting of Analog Video and Analog or Digital

Audio Inputs:

-1 x S-Video jack for S-Video analog video input

-1 x RCA jack for Composite Video (CV) analog video input

-2 x RCA jacks for audio input:

-standard line-type Left & Right analog pairs

-or use one jack for digital PCM audio

Outputs

• There are eight (8) Output Groups, eachOutput Group consisting of discrete

Analog Video and Analog or Digital Audio Outputs:

-1 x S-Video jack for S-Video analog video DA output

-1 x RCA jack for Composite Video (CV) analog video DA output

-2 x RCA jacks for audio DA output:

-standard line-type Left & Right analog pairs

-or use one jack for digital PCM audio

• Output = Input

• Can be cascaded to other KD-SCDA8 DA’s to drive as many outputs as desired

from one source

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Throughput

• There is one (1) Output Throughput:

-1 x S-Video jack for S-Video analog video

-1 x RCA jack for Composite Video (CV) analog video

-2 x RCA jacks for audio:

-standard line-type Left & Right analog pairs

-or use one jack for digital PCM audio

-Power supply connector, to feed power to the daisy-chained units [NOTE:

when daisy-chaining, you MUST use a 5 Volt, 5-Amp rated supply, available

from Key Digital, as the external power supply for the first unit in the daisy

chain]

• The Throughput can be used as follows:

Can daisy-chain the input to another device via the Throughput

Throughput Output can also serve as a ninth DA output

Signal Properties:

• Analog Video

-NTSC, PAL, SECAM, all world analog SD formats

-Composite Video (CV), and

-S-Video

-Bandwidth flat out to 110 MHz

• Audio

-Bandwidth flat 20 Hz to 50 MHz

-Analog (standard line-type Left & Right pairs), or

-Digital PCM on Left or Right

• Can drive CV (Composite Video) and S-Video cables, up to 300 feet each

Connectors

• Each Input (1 Input Group), Output (8 separate Output Groups), and Throughput

(1 Output Throughput Group) consists of:

-1 x S-Video jack for S-Video analog video input

-1 x color-coded RCA female jack for Composite Video (CV) analog video input

-2 x color-coded RCA female jacks for audio input:

-standard line-type Left & Right analog pairs

-or use one jack for digital PCM audio

• Other Connections:

-Standard power plug for external power supply input and throughput power

supply feed-forward output

Mechanical

• Easy to install and integrate — Custom Installer’s dream

• Cables attach to the I/O A/V panel

• Stand-alone or can be mounted with flanges (included)

• Size: 3” x 11.375” x 2.375” high

• Weight: 2.8 lbs.

• Enclosure type: Metal (no vents)

• Input Power: 5 Volt DC (external supply included, 110-240V AC, 50-60 Hz, 1.0 A)

NOTE: use a 5.0 A supply available from Key Digital, as the external power supply

when daisy-chaining

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KEY DIGITAL

COMPOSITE VIDEO AND S-VIDEO

DISTRIBUTION AMPLIFIER

MODEL KD-SCDA8

Safety Instructions – Please be sure to follow these instructions for

safe operation of your unit

******************************************************

1. 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 are 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, convenience receptacles, and the point

where they exit from the apparatus.

11. Only use attachments/accessories specified by the

manufacturer.

12. Use only with the cart, stand, tripod, bracket, or table

specified by the manufacturer, or sold with the apparatus.

When a cart is used, use caution when moving the

cart/apparatus combination to avoid injury from tip-over.

13.Unplug this apparatus during lightning storms or when

unused for long periods of time.

14.Refer all servicing to qualified service personnel. Servicing

is required when the apparatus 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.

JUNE 2004

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