Comprehensive CDA-HDMI20 User manual

Instruction Manual
CDA-HDMI20 & CDA-HDMI40
HDMI Distribution Amplifiers

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Table of Contents
1.0 Introduction 4
2.0 Specifications 5
3.0 Checking Package Contents 6
4.0 Connecting The Hardware 7
5.0 Operating The Unit 8
6.0 Installation of Mounting Components 9
7.0 Troubleshooting 9
8.0 Limited Warranty 10
9.0 Regulatory Compliance 11

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1.0 INTRODUCTION
Thanks for purchasing this CDA-HDMI20 or CDA-HDMI40 HDMI Distribution
Amplifier from Comprehensive. These Distribution Amplifiers are designed to
provide a way to distribute up to 4 HDMI signals to other HDMI type devices
without signal degradation or loss of encryption.
1.1 Liability Statement
Every effort has been made to ensure that this product is free of errors.
Comprehensive cannot be held liable for the use of this hardware or any direct or
indirect consequential damages arising from its use. It is the responsibility of the
user of the hardware to check that it is suitable for his/her requirements and that
it is installed correctly. All rights reserved. No parts of this manual may be
reproduced or transmitted by any form or means electronic or mechanical,
including photocopying, recording or by any information storage or retrieval
system without the written consent of the publisher.
Comprehensive reserves the right to revise any of its hardware and software
following its policy to modify and/or improve its products where necessary or
desirable. This statement does not affect the legal rights of the user in any way.
All third party trademarks and copyrights are recognised. The Comprehensive
logo is a registered Trademark of Comprehensive. All other trademarks are the
property of their respective holders.
1.2 FEATURES
The Comprehensive CDA series of HDMI Distribution Amplifiers have many
features that enable them to perform in a superior manner. Among those features
you will find:
•Distributes 1 HDMI source to as many as 4 destinations
•Supports 480i, 480p, 720p, 1080i and 1080p resolution
•HDMI Certified by Silicon Images ATC Laboratory
•Supports DDWG standard for HDMI compliant monitors
•HDCP Compliant, RoHS Compliant

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2.0 SPECIFICATIONS
Performance
Resolutions Supported 480i, 480p, 720p, 1080i, 1080p
Maximum Cable Distance Input: 50 Ft Max, Outputs: 50 Ft Max
Maximum Bandwidth 1.65GHz
HDMI Compliance Version 1.2a
I/O Connectors
Input HDMI, TMDS x1 (All models)
Outputs CDA-HDMI20: HDMI, TMDS x2
CDA-HDMI40: HDMI, TMDS x4
Mechanical
Dimensions (H-W-D) CDA-HDMI20 1.1x7.6x3.6” (28x192x90.4mm)
CDA-HDMI40 1.1x10.4x6” (28x264x153mm)
Weight CDA-HDMI20 1.2 lbs (550g)
CDA-HDMI40 2.4 lbs (1080g)
Warranty
Limited Warranty 2 Years Parts and Labor
Environmental
Operating Temperature +0 to +50° C (+32° to +104° F)
Operating Humidity 15% to 80% (Non-condensing)
Storage Temperature -20° to +60° C (-20° to +140° F)
Storage Humidity 15% to 70% (Non-condensing)
Power Requirements
External Power Supply +5V@2A (Locking DC)
Regulatory Approvals
Distribution Amplifier FCC, CE, RoHS, HDMI ATC
Power Supplies UL, CE, CSA, CEC, RoHS
Accessories Included
1x AC Power Adapter US, UK or Euro Type
1x Instruction Manual CDA Series
Remote Mtg. Kit CDA-HDMI20, CDA-HDMI40
Product Item Number
CDA-HDMI20 2x1 HDMI Distribution Amp
CDA-HDMI40 4x1 HDMI Distribution Amp

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3.0 CHECKING PACKAGE CONTENTS
Before attempting to use this unit, please check the packaging and make certain
the following items are contained in the shipping carton:
•1 ea HDMI Distribution Amplifier
•1 ea +5 VDC Power Adapter
•1 ea Remote Mounting Kit
•1 ea Instruction Manual
Note: Please retain the original packing material should the need ever arise to
return the unit. If you find any items are missing, contact your reseller or
Comprehensive immediately. Have the Model Number, Serial Number and
Invoice available for reference when you call.

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4.0 CONNECTING THE HARDWARE
Please study the front and rear panel drawings below and become familiar with
the signal inputs, outputs and power inputs.
The Comprehensive CDA series HDMI Distribution Amplifiers are functionally
identical with the exception of the number of outputs. All have a single HDMI
input and a +5 VDC power input socket. These connectors as well as the outputs
connectors are arrayed on the rear panel. There are no controls or switches on
any of the units however all units have LEDs that indicate when the DA is
furnishing a signal to an HDMI compliant device. Finally, there is no power
switch. The unit will begin to function as soon as the AC adapter is connected to
the unit and an AC supply.
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CDA-HDMI20
Distribution Amplifier

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5.0 OPERATING THE UNIT
To use any of the Comprehensive CDA series HDMI Distribution Amplifiers,
connect an HDMI approved cable, no more than 50 feet in length, from the HDMI
source to the input of the DA. Next, connect the outputs of the DA to their
destination devices using HDMI approved cables no more than 50 feet long.*
Lastly, connect the power adapter, first to the AC source and then to the DA.
Turn on the HDMI source as well as the HDMI destination devices and you will
see the source signal appear on the inputs of all of the destination devices and
an LED will light indicating which outputs are active.
*Note: Proper operation of HDMI Distribution Amplifiers depends on the use of
the highest quality cables available. The cable must provide low loss, high
bandwidth signal handling and be used with all Comprehensive HDMI products.
The distance specification cannot be guaranteed unless such cables are used
throughout the system.
5.1 Resolution Tracking
Since HDTV can be any of several different resolutions, the CDA series DA must
be able to sense and process the various resolutions on both input and outputs.
On the input, the DA will sense and accept any standard resolution however, on
the outputs, the DA must sense the resolution capabilities of all of the display
devices connected to it and then set the resolution of all outputs to the resolution
of the display having the lowest resolution response characteristics. To do
otherwise would mean that some display devices would not produce a picture.
The user is advised to use display devices having the same resolution to avoid
the DA’s processing circuitry assuming the lowest common denominator status
on all monitors with respect to display image resolution.

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6.0 INSTALLATION OF MOUNTING COMPONENTS
The Comprehensive CDA-HDMI20 and CDA-HDMI40 HDMI DAs can be
mounted on any flat surface using the included mounting kit.
Mounting the CDA-HDMI20 or CDA-HDMI40 HDMI DAs
Attach the two “L” shaped mounting brackets to the product using the furnished
hardware and then attach the combined assembly to the desired location.
Note that the holes on the brackets are offset to allow easier mounting to the flat
surface after you’ve attached the brackets to the switcher.
7.0 TROUBLESHOOTING
In the event of problems, first make certain that the input cable is no more than
50 feet long, none of the output cables are more than 50 feet long and all cables
are of premium construction.
Next, make certain that the Distribution Amplifier is receiving power by looking at
the power LED. It should be illuminated and not flickering or intermittently going
on and off. Intermittent operation generally means a problem with the DC adapter
or low AC voltage being applied to the DC adapter’s input.
If all is well in these areas, remember that HDMI devices communicate with one
another so the source device and all destination devices must be fully HDMI
capable. In addition, HDCP encryption requires additional processing which also
is dependent on the equipment you have connected to both the source and
destination devices. If you experience problems using the Distribution Amplifiers,
you should attempt to determine what is wrong by first attaching the source
Front of DA

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device directly to each of the destination devices in turn using the same cables
you are using with the expanded system. This is a way of determining if the
problem is due to bad cables or a problem with the other devices. If you are
unable to obtain a signal using this simplified path, suspect the cables, the
source device or the destination device.
After trying the above suggestions should the problem persist, contact your
dealer for additional suggestions before contacting Comprehensive. Should the
dealer’s technical personnel be unable to assist you, contact Comprehensive at
800-526-0242 or via Fax at 201-814-0510.
8.0 LIMITED WARRANTY
Comprehensive warrants that for a period of 2 years from date of original
purchase, our products will be free from defects in material and workmanship
under normal use and service. This warranty covers defective material or
workmanship only and does not apply to misuse, use under extreme conditions,
products that have been opened or serviced by anyone other than
Comprehensive, products improperly used or installed, fire, flood damage or any
acts of nature.
A Return Authorization (RA) number must be obtained from your place of
purchase before the unit is returned and must be accompanied by a dated written
proof of purchase. All material must be shipped at the expense and risk of the
owner. Units under warranty deemed to be defective will be shipped back to the
buyer or dealer freight paid. Contact Comprehensive customer service at 800-
526-0242, or [email protected].
Comprehensive’s obligation under this warranty will be limited, at the sole
discretion of Comprehensive, to either repair or replacement of defective unit,
including free parts and labor. In no event shall Comprehensive be responsible
for any incidental or consequential damages or loss of profits or goodwill.

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9.0 REGULATORY COMPLIANCE
The Comprehensive CDA series Distribution Amplifiers have been tested for
compliance with appropriate FCC and CE rules and regulations and are also
RoHS compliant.
The Power Adaptor/Supplies have been tested for compliance with UL, CE, CEC
and CSA rules and regulations and are also RoHS compliant.

Comprehensive
55 Ruta Court
South Hackensack, NJ 07606
Phone: [phone]
Fax: [phone]