KD-DA1x2X - Receiver Key Digital - Free user manual and instructions

Product Type	Receiver
Brand	Key Digital
Model	KD-DA1x2X
Dimensions (W x D x H)	17.0 x 10.0 x 1.75 inches
Weight	4.5 lbs
Power Supply	AC 100-240V, 50/60Hz
Power Consumption	30W (max)
Inputs	1x HDMI, 1x Optical, 1x Coaxial
Outputs	1x HDMI (ARC), 1x Stereo RCA
Supported Audio Formats	Dolby Digital, DTS, PCM
Maximum Resolution	4K@60Hz
HDCP Support	HDCP 2.2
Main Functions	Audio/video switching, signal distribution, remote control
Maintenance	Clean with dry cloth; avoid liquids
Safety	Do not expose to moisture; use in well-ventilated area
Spare Parts & Repairability	Contact Key Digital support; user-replaceable fuse only
General Information	1-year limited warranty

Frequently Asked Questions - KD-DA1x2X Key Digital

How do I connect the KD-DA1x2X to my TV?

Use an HDMI cable from the receiver's output to your TV's HDMI input. Ensure both devices are powered off during connection.

What is the maximum supported resolution?

The KD-DA1x2X supports up to 4K@60Hz with HDCP 2.2.

Can I use this receiver with a 5.1 surround sound system?

Yes, it supports Dolby Digital and DTS formats via optical or coaxial inputs. Connect the audio output to your amplifier.

How do I reset the receiver to factory settings?

Press and hold the 'Reset' button on the back panel for 5 seconds until the LED flashes. Release to restore defaults.

Does the receiver support HDMI ARC?

Yes, the HDMI output supports ARC (Audio Return Channel) for sending audio from the TV back to the receiver.

What is the power consumption of the device?

The maximum power consumption is 30W. Use the included power adapter.

How do I clean the KD-DA1x2X?

Unplug the device and wipe the exterior with a soft, dry cloth. Do not use any liquids or cleaners.

My remote control is not working. What should I do?

Check the batteries in the remote and ensure there are no obstacles between the remote and the receiver's IR sensor. If problems persist, re-pair the remote by pressing the 'Pair' button.

Can I mount the receiver on a wall?

The KD-DA1x2X does not include mounting brackets. It is designed for desktop or shelf placement. Ensure adequate ventilation.

What is the warranty period?

Key Digital offers a 1-year limited warranty on the KD-DA1x2X. Contact customer support for details.

USER MANUAL KD-DA1x2X Key Digital

Operating Instructions

Portrait of a man with glasses and mustache, looking upward (no text or symbols visible)

Key Digital ^® , led by digital video pioneer Mike Tsinberg, develops and manufactures high quality, cutting-edge technology solutions for virtually all applications where high-end video and control are important. Key Digital ^® is at the forefront of the video industry for Home Theater Retailers, Custom Installers, System Integrators, Broadcasters, Manufacturers, and Consumers.

Front view of a network switch device (no visible text or labels)

KD-DA1x2XKD-DA1x4X

Key Digital ^® : 521 East 3rd Street : Mount Vernon, NY 10553

Phone: [phone] Fax: [phone] Web: www.keydigital.com

Key digital®

The Experts in Digital Video Technology and Solutions™

Table of Contents

Introduction 1

Quick Setup Guide 2

Application Example 2

Front & Rear Panel Connections, Buttons, and LEDs 3

Specifications 7

Important Product Warnings & Safety Instructions 8

Contacting Key Digital 9

Warranty Information....9

Visit product pages for most recent version of the manual, quick setup guide, firmware, control drivers and all additional downloads.

KD-DA1x2X KD-DA1x4X

Always follow the instructions provided in this Operating Manual.

Note: Please visit www.keydigital.com for the latest product documentation and software downloads. Product features and specifications are subject to change without notice.

© 2019 Key Digital, Inc. All rights reserved.

Introduction

Key Digital® KD-DA1x2X/KD-DA1x4X are 4K/18G HDMI Distribution Amplifiers engineered to offer the best in quality, performance, and reliability, while providing a cost-effective HDMI signal distribution solution. Designed for professional audio video installations in digital signage applications, KD-DA1x2X/KD-DA1x4X enables a single video source to be displayed on multiple video displays. L/R analog and digital Optical de-embed ports provide an external audio signal of the connected source so it may be fed into amplifiers, distributed audio systems, and digital audio sound bars. KD-DA1x2X/KD-DA1x4X HDMI Distribution Amplifiers support all SD, HD, VESA and Ultra HD/4K video standards with HDR header information included in a variety of 4K EDID handshakes. The Distribution Amplifiers feature status-monitoring LEDs, and support of HDR10, HDCP 2.2 and 4K.

Key Features

HDMI Signal Distribution: 1 HDMI source to 2/4 HDMI outputs/displays
Ultra HD/4K Support: 4096x2160 or 3840x2160 24/25/30/60hz at 4:4:4 (signals up to 18Gbps bandwidth)
HDCP Licensing: Fully licensed and compatible with HDCP 2.2
HDR10 (High Dynamic Range): More life-like images through a greater range of luminance levels
Resolution Support: Supports all SD, HD, and VESA (VGA, SVGA, XGA, WXGA, SXGA, UXGA) up to 4096x2160p.
Deep Color Support: Up to UHD/4K 30Hz 4:4:4/12 bits or 60Hz 4:4:4/8 bit
Audio De-embedding: Audio of the selected HDMI input is output at the digital Optical and analog 3.5mm stereo connectors.
Full Buffer System Manages TMDS re-clocking / signal re-generation, HDCP authentication to source & display, and EDID Control handshake
EDID Management: Internal library with 15 internal EDID handshakes including 4K with HDR in addition to native EDID data copied from the output/display 1
Lossless Compressed Digital Audio: Dolby® TrueHD, Dolby® Digital Plus, DTS-HD Master Audio™, and Dolby® Atmos
CEC Disconnect: Prevents unwanted control of source

Included Accessories

Power Supply: KD-PS5V2ASC 5V/2A DC power jack, screw-in type
Mounting Brackets: 2 L-shaped

2

Quick Setup Guide

CONNECT:

Test for proper operation of the unit and cables in your system before permanently securing the unit for final installation. Ensure that you leave enough ventilation space to provide sufficient airflow and cooling.

1. Begin with the KD-DA1x2X/KD-DA1x4X unit and all input/output devices turned off with power and CAT cables removed
2. Connect your HDMI source to the input port of KD-DA1x2X/KD-DA1x4X unit
3. Connect your HDMI displays to the output ports of KD-DA1x2X/KD-DA1x4X unit
4. Connect the analog and/or digital audio amplifiers/receivers via the analog 3.5mm and optical outputs
5. BEFORE connecting power supply to power outlet, screw-in the power supply to the KD-DA1x2X/KD-DA1x4X unit
6. After all connections are made, plug-in power supply to power outlet
7. Power on input and output devices

CONFIGURE:

The default EDID handshake is 4Kx2K@60, 18G, HDR, 2ch audio (setting A). Use the EDID rotary dial to choose the desired handshake that will be provided to the connected source.

Application Example

graph TD
    A["Ultra HD4K Digital Signage"] --> B["KD-DA1x4X"]
    B --> C["Amplifier"]
    C --> D["4K HDMI"]
    C --> E["4K HDMI"]
    C --> F["4K HDMI"]
    C --> G["4K HDMI"]
    C --> H["4K HDMI"]
    B --> I["Analog Antenna"]
    B --> J["Analog Antenna"]

Note: 18Gbps signal extension requires all 18Gbps supported HDMI cables.

Rack Mounting:

In addition to mounting with the supplied L-Brackets, multiple KD-DA1x2X/KD-DA1x4X may be mounted in KD-SMS16 using the side mounting screws. KD-SMS16 is a mounting shelf for Key Digital units with side mounting screw spacing of 2.912", 2.582", or 2.252"

Two views of a black industrial rack frame structure, top view with grid-like supports and bottom view with structural brackets (no text or symbols visible)

Do NOT exceed 12 units as doing so will result in unit damage by overheating.

Front & Rear Panel Connections, Buttons, and LEDs

REAR PANEL

HDMI Input 1 2 3 4 LTM Audio Outputs HDMI Outputs Audio Outputs Options System

HDMI Inpus

The HDMI input is located on the left side of the back panel.

Blue LED illuminates solid to indicate an active HDMI signal is incoming.

HDMI I/O 1 2 3 4 HDMI Outputs Audio Outputs Opinion Power SvTD 2A

HDMI Outputs

2/4 HDMI outputs are located on the center to right side of the back panel.
Blue LED illuminates solid when Hot Plug Detection (HPD) is received from the connected display/output device

3

HDMI Input/Output Port Specifications

Supports up to UHD/4K @ 50/60 fps [4:4:4], 18Gbps signals
See Supported standard 4K Video Formats table
Supports HDR10
Compliant with HDCP 2.2 and previous
Supports lossless compressed audio formats including DolbyTrueHD, Dolby® Digital Plus, Dolby Atmos®, and DTS-HD Master Audio™
CEC and ARC are not supported
For Display Port sources/monitors, use active converters

Supported standard 4K Video Formats:

Resolution Bandwidth
1 4K@24/25/30 [4:4:4] 8bit < 10.2Gbps
2 4K@24/25/30 [4:2:2] 8/10/12bit < 10.2Gbps
3 4K@50/60 [4:2:0] 8bit < 10.2Gbps
4 4K@24/25/30 [4:4:4] 10/12bit < 18Gbps
5 4K@50/60 [4:2:2] 8/10/12bit < 18Gbps
6 4K@50/60 [4:2:0] 10/12bit < 18Gbps
7 4K@50/60 [4:4:4] 8bit < 18Gbps

HDMI Input 1 2 3 4 HDMI Outputs Model HD Defaults Output L/P Audio Outputs Output HV-DCA

Analog L/R Audio Output

3.5mm stereo jack with de-embedded audio from the selected HDMI source

Automatically mutes if audio formatting is not PCM 2ch

HDMI Input 1 2 3 4 Model HD Options HDMI Outputs Lift Audio Outputs Optical W/FFA

Optical Audio Output

Optical audio output with de-embedded audio from the selected HDMI source
SPDIF IEC 60958 formal
Supports multi-channel Dolbyand DTS ^™ surround formats up to 5.1
Automatically mutes if audio formatting is not PCM, DoFbyor DTS™

Audio Ports Specifications

Each audio output drives audio signals up to 2VRMS with a sampling rate of 192KHz

There are no volume or tone control features

There are no DSP features

Audio Input Signal Format	Audio L/R Output	Digital Audio Output (Optical)
2ch PCM Pass-Through Pass-Though
Multi-Channel PCM	Front L/R Pass-Through	MUTE
Dolby DTS	MUTE	Pass-Though
HD Audio	MUTE	MUTE

FRONT PANEL

Key digital Input Active Output Active 1 2 3 4 3F 3A 3B Forward=FD EOG KD-DA1x4X

Input Active LED button

» 1 blue LED illuminates solid to indicate an active incoming HDMI signal

Key digital Output Active Input Active Forward-F0 EDC KD-DA1x4X

Output Active LED

- 2/4 blue LEDs illuminate solid when Hot Plug Detection (HPD) is received from the connected display/output device

Key digital Input Active Output Active OFF: 100 % Forward: 100 ISO KD-DA1x4X

Service (Factory) USB

This port is for factory servicing only. Does not have standard USB functionality.

Key digital® Output Action 20 30 Forward-40 600 KD-DA1x4X

Forced HPD Troubleshooting Tool

When ON, Hot Plug Detection voltage is fixed on to the connected display

»Standard HPD behavior when set to OFF position

Key digital Output Active Control Forward-PRO KD-DA1x4X

EDID Handshaking Rotary

• EDID authentication is provided from the unit to the connected inputs/sources.
  The EDID file (AKA "handshake") is selected using the EDID rotary on the unit and provides a list of compatible video and audio formats as well as digital data, informing the source device what it should output.
  Most sources will comply with a new EDID file without a power-cycle, but devices do behave differently

Adjustments may speed up sync time during source selection.

Position EDID Handshake Description EDID Rotary
0	Copy EDID from HDMI Output 1
1	1080I, 2CH AUDIO
2	1080I, DOLBY/DTS 5.1
3	1080I, HD AUDIO
4	1080p, 2CH AUDIO
5	1080p, DOLBY/DTS 5.1	Note: Default position is "A"
6	1080p, HD AUDIO
7	4Kx2K@60, 10.2G, HDR, 2CH AUDIO
8	4Kx2K@60, 10.2G, HDR, DOLBY/DTS 5.1
9	4Kx2K@60, 10.2G, HDR, HD AUDIO
A	4Kx2K@60, 18G, HDR, 2CH AUDIO
B	4Kx2K@60, 18C, HDR, DOLBY/DTS 5.1
C	4Kx2K@60, 18G, HDR, HD AUDIO	IMPORTANT: Please apply light pressure to the EDID rotary when making your selection.
D	1280x720p@60 DVI (no audio)
E	1920x1080p@60 DVI (no audio)
F	4Kx2K@30, 10.2G, HDR, 2CH AUDIO

Specifications

Technical:

»Input (Each): HDMI Connector, Type A, 19 Pin Female

»Output: HDMI Connector, Type A, 19 Pin Female

»Bandwidth: TMDS bandwidth 18 Gbps

»DDC Signal (Data): Input DDC Signal - 5 Volts p-p (TTL)

» HDMI Video/Audio Signal: Input Video Signal - 1.2 Volts p-p

Power Supply: KD-PS5V2ASC, 5V/2A, 100-240VAC, 50-60Hz, Interchangeable head, screw-in connector

General:

»Regulation: CE, RoHS, WEEE

»Enclosure: Black Metal

Product Dimensions: KD-S2x1X - 4.3" x 1.1" x 2.8"; KD-S4x1X - 6.25" x 1.1" x 3.1"
» Packaging Dimensions: KD-S2x1X - 6.3" x 4.2" x 3.7"; KD-S4x1X - 9.8" x 4.5" x 3.35"

»Product Weight: KD-S2x1X - 0.5 lb; KD-S4x1X - 0.9 lb

»Shipping Weight: KD-S2x1X - 0.7 lb; KD-S4x1X - 1.5 lb

Important Product Warnings:

1. Connect all cables before providing power to the unit.
2. Test for proper operation before securing unit behind walls or in hard to access spaces.
3. If installing the unit into wall or mounting bracket into sheet-rock, provide proper screw support with bolts or sheet-rock anchors.

Safety Instructions:

Please be sure to follow these instructions for safe operation of your unit.

1. Read and follow all instructions.
2. Heed all warnings.
3. Do not use this device near water.
4. Clean only with dry cloth.
5. Install in accordance with the manufacturer's instructions
6. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
7. Only use attachments/accessories specified by the manufacturer.
8. Refer all servicing to qualified service personnel. Servicing is required when the device has been damaged in any way including:
   »Damage to the power supply or power plug
   »Exposure to rain or moisture

Power Supply Use:

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.

Contacting Key Digital®

Technical Support

For technical questions about using Key Digital® products, please contact us at:

Phone: [phone]
E-mail: [e-mail]

Repairs and Warranty Service

Should your product require warranty service or repair, please obtain a

Key Digital® Return Material Authorization (RMA) number by contacting us at:

Phone: [phone]
E-mail: [e-mail]

Warranty Information

All Key Digital® products are built to high manufacturing standards and should provide years of trouble-free operation. They are backed by a Key Digital Limited 3 Year Product Warranty Policy. http://www.keydigital.com/warranty.htm