TV One Multimedia Solutions 1T-SX-644 User manual

1T-SX-644 HDMI v1.4 FAST Switcher
with 3D / ARC
Instruction Manual

Table of Contents
1.0 Introduction 2
2.0 Specifications 4
3.0 Checking Package Contents 5
4.0 Connecting the Hardware 5
5.0 Operating The Unit 6
6.0 Troubleshooting 12
7.0 Limited Warranty 12
8.0 Regulatory Compliance 13
9.0 Contact Information 14

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1.0 INTRODUCTION
The 1T-SX-644 HDMI v1.4 FAST Switcher with 3D / ARC allows selection of any of 4
inputs for display on an HDMI compliant display device. This version 1.4 HDMI device
supports all standard High Definition Television formats, including 12-Bit Deep Color
1080p, plus PC formats through WUXGA. It also supports embedded HD-Audio,
including Dolby® TrueHD and DTS-HD. Infrared Remote Control and RS-232 Control
are standard features of the product.
Our professional video conversion products have been serving the industry for over
twenty years. TV One offers a full line of high quality Seamless Switchers, Video
Scalers, Up/Down/Cross Converters, Analog-Digital Converters (SD/HD-SDI, HDMI,
DVI), Format Converters, Standards Converters, TBC/Frame Synchronizers, Matrix
Routing Switchers, Signal Distribution Amplifiers and Cat.5 Transmission Systems.
1.1 Liability Statement
Every effort has been made to ensure that this product is free of errors. TV One 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.
TV One 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 TV One logo, AV Toolbox
logo, TV One-task and CORIO are the registered Trademarks of TV One. All other
trademarks are the property of their respective holders.
1.2 Features
•HDMI 1.4, HDCP 1.4 and CEC1.4 Compliant
•Deep Color 36/30/24 Bit, 1080p @50/60Hz Support
•Allows switching of 4 inputs
•3D Television Support
•Audio Return Channel Support (ARC)
•Fast Switching of all inputs
•HDCP Repeater Support
•Supports High Resolution PC Video Inputs through WUXGA
•Supports embedded Audio including Dolby® Digital TrueHD and DTS-HD
•IR Remote Control and RS-232 are standard features
•OSD (On Screen Display)

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1.3 Getting the Best Results
There are many factors affecting the quality of results when switching HDMI type
signals. Some basic precautions will ensure the best possible performance from your
1T-SX-644 HDMI v1.4 FAST Switcher with 3D / ARC.
•Output display device – The quality of the output signal will depend largely upon
the type and quality of the HDMI display device used. For instance, some video
projectors just look better than others.
•Distance between the switcher, the sources and the display – This plays a
major role in the final result. Long distances are possible, but special measures
should be taken in order to avoid cable losses. These include using high quality
cables. Line amplifiers may also be necessary for the longest runs.
•Input/Output connection cables – Low quality cables are susceptible to
interference. They degrade signal quality due to poor matching and can cause
elevated noise levels. Cables should be of the best quality.
•Interference from nearby electrical devices – These can have an adverse effect
on signal quality. For example, an older computer monitor often emits very high
electromagnetic fields that can interfere with the performance of video equipment in
its proximity.

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2.0 SPECIFICATIONS
Supported Inputs
Input Format HDMI Version 1.4
Input Signal Types HDMI (plus PC Video to WUXGA)
Supported Output
Output Format HDMI V1.4.
Output Signal Type High Definition Multimedia Interface
Signal Characteristics
Freq. Bandwidth 2.25Gbps (Single Link)
Compliance HDMI 1.4, HDCP 1.4 & CEC1.4
Color Depth Deep Color 36/30/24 Bit, 1080p
Repeater Operation HDCP Repeater Support
Supported Audio
Embedded Audio Dolby® Digital TrueHD and DTS-HD
Return Audio Support Audio Return Channel (ARC)
I/O Connections
Input Connector 4x Type A HDMI Female
Output Connectors 1x Type A HDMI Female
Device Control
Device Control Front Panel, IR Remote w/OSD or RS-232
Environmental
Operating Temperature 0° to +40° C (+32° to +104° F)
Operating Humidity 20% to 90%, Non-condensing
Storage Temperature -10° to +60° C (+14° to +140° F)
Storage Humidity 20% to 90%, Non-condensing
Warranty
Limited Warranty 3 Years Parts and Labor
Regulatory Approvals
Main Unit FCC, CE, RoHS
Power Supply UL, CUL, CE, PSE, GS, RoHS
Mechanical
Dimensions–HxWxD 1.2”x7.9”x 4” (30x200x102mm)
Weight 1.3 lbs (592g)
Power Requirement
External Power Supply 100~240VAC to 5VDC/2A Locking Adapter
Accessories Included
1x Power Adapter US, UK or Euro
1x User Manual
Model Number
1T-SX-644 HDMI v1.4 Fast Switcher w/3D-ARC

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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:
•1x 1T-SX-644 HDMI v1.4 Fast Switcher w/3D-ARC
•1x 100~240VAC to 5VDC Power Adapter
•1x Instruction Manual
•1x Infrared Remote Control
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 TV One immediately.
Have the Model Number, Serial Number and Invoice available for reference when you
call.
4.0 CONNECTING THE HARDWARE
Connect the HDMI Video Sources to the inputs of the 1T-SX-644 HDMI v1.4 Fast
Switcher w/3D-ARC, connect its output to a HDMI Compliant monitor and lastly connect
the AC to DC Power Adapter. The drawings below show the locations of the inputs,
output, power switch and power connector.

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4.1 Connecting the HDMI Inputs
You can connect any HDMI compliant device’s output to any of the HDMI inputs. Make
certain that the HDMI cable is securely plugged into the source device as well as the
HDMI Switcher. Always use a high quality cable, as short a length as possible, for best
results.
4.2 Connecting the HDMI Output
Using a high quality HDMI cable, connect the output of the HDMI Switcher to an HDMI
compliant display device. Use the shortest cable run possible.
4.3 Connecting Power
The unit is shipped with a Power Adapter to convert 100~240VAC@50-60Hz to 5VDC.
Connect the DC Output Cable from the Power Adapter to the back of the unit and then
plug the Power Adapter into an AC Receptacle. Note that there is no power switch. The
unit will power up as soon as you connect the AC Adapter to an appropriate AC source.
4.4 Optional Rack Mount Kit
The 1T-SX-644 HDMI v1.4 Fast Switcher w/3D-ARC can be mounted in a standard 19”
equipment rack. To mount the units, the optional RM-230 Rack Mount kit must be
purchased. Using this kit, either type HDMI switcher can be mounted in the rack. It is
also possible to mount one of each switcher in the rack using the dual rack mount
capability. It is not necessary to mount two of the same type of switchers.
5.0 OPERATING THE SWITCHER
The 1T-SX-644 HDMI v1.4 Fast Switcher w/3D-ARC may be operated via the Front
Panel controls, the IR remote control or via RS-232 protocols.
5.1 Operation via the Front Panel
Inputs are selected by pressing the appropriate input select button. An LED will light
adjacent to the selected input confirming your selection.
All other operations are accomplished via an On Screen Display (OSD) menu. The OSD
menu is accessible from either the front panel or from the included Infra-Red remote
control.
The OSD menu structure is displayed by pressing the Menu button on either the front
panel or the remote.
The menu structure is shown below.

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System Info
Press to highlight an option.
Press [ENTER] to check the input/output device information and software version.
Press [MENU] to exit menu.
Press [ENTER] to confirm/exit the menu.
Sink EDID
Press to highlight an option.
Press to select the option.
Press [MENU] to exit menu.
Press [ENTER] to confirm/exit the menu.
Option Description
Block Data To check the sink Block0 & Block1’s table of EDID.
Description: To check the sink description of an EDID.
Source Infoframe
Press to highlight an option.
Press to select the option.
Press [MENU] to exit menu.
Press [ENTER] to confirm/exit the menu.
Option Description
AVI (AVI Infoframe Data) To check the source video infoframe packet.
AUD (Audio infoframe Data) To check the source audio infoframe packet.
Input Select
Press to highlight an option.
Press to select the option.
Press [MENU] to exit menu.
Press [ENTER] to confirm/exit the menu.
Audio Return
Press to highlight an option.
Press to select the option.
Press [MENU] to exit menu.
Press [ENTER] to confirm/exit the menu.
Option Description
Audio Return On/Off

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The audio return function requires some explanation as it is a new feature of HDMI 1.4.
The Audio Return Channel in HDMI 1.4 enables a TV, via a single HDMI cable, to send
de-embedded audio data “upstream” to an A/V receiver or surround sound audio
controller, increasing user flexibility and eliminating the need for a separate S/PDIF
audio connection.
HDMI enabled Digital Television Displays have always been able to receive multi-
channel audio through an HDMI connection, and this is still a typical situation, with the
TV positioned “downstream” from content sources and any connected audio equipment.
However, if a user had a TV with a built-in tuner or DVD player, and wanted to send
content “upstream” from the TV back to the audio system once it had been decoded, a
separate connection had to be installed from the display device back to the audio
amplifier, typically an S/PDIF cable.
An Audio Return Channel-enabled TV can either send or receive audio via HDMI,
upstream or downstream, depending on system set-up and user preferences which
means that limitations of the S/PDIF approach are minimized.
When Audio Return is set to “Off”, the standard rules of HDMI audio handling apply as
summarized in the following chart: Examination of the chart will show that there are
situations where you cannot always recover the decoded audio from the display device
using the S/PDIF approach due to bandwidth limitations or due to the display device not
being able to decode all audio formats.
Signal Type HDMI Input HDMI Output Coaxial Output
Non-Compressed
Digital PCM 2.0 (32K~192K) Supported Supported Supported
Digital PCM 5.1 (48K~96K) Supported Supported Unsupported
Digital PCM 7.1 (48K) Supported Supported Unsupported
Compressed
AC3 2.0 (48K) Supported Supported Supported
AC3 5.1 (48K) Supported Supported Supported
DTS 5.1 (48K) Supported Supported Supported
AC3+ 7.1 Supported Supported Unsupported
DTS+ 7.1 Supported Supported Unsupported
Digital HBR Compression
Dolby TrueHD 5.1 Supported Supported Unsupported
Dolby HD 5.1 Supported Supported Unsupported
DTS HD 5.1 Supported Supported Unsupported
DTS HD 7.1 Supported Supported Unsupported
Enabling Audio Return (turning it on via the OSD Menu), allows full support of audio that
has been de-embedded at the display device using the same HDMI cable that sent the
signal to the display device for the return audio path to the audio distribution system.

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This is superior to using a separate S/PDIF coaxial cable from the display device back
to the audio distribution system, particularly since there may be situations where the
display device may not de-embed a particular signal type.
In that case, audio that’s not decodable by the display device is de-embedded at the 1T-
SX-644 and passed to the audio distribution system via the Coaxial Cable Output using
short cables. Because of this capability, it doesn’t matter if the display device is unable
to de-embed the desired audio type due to hardware or software limitations.
The one requirement however is the display device must be capable of Return Audio
capability so use of this functionality is dependent on the display device being fully
HDMI 1.4 compliant.
Exit
Press to highlight an option.
Press [ENTER] to confirm/exit the menu.
5.2 Operation via Remote Control
5.2.1 Using the included Remote Control
Note: You may have to remove an insulator from the battery compartment of the Remote
Control in order for the remote to receive power. The battery compartment slides out
from the bottom of the unit.
1 2
3
4
1 Press to access OSD Menu.
2 Press to confirm selections.
3 Press to select HDMI Input.
4 Press to select and/or adjust
OSD selections.
* Pressing the Menu button
after the OSD menu is visible
will exit OSD.

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5.3 Operation via RS-232 Machine Control
Operation using RS-232 protocols is possible. The technical information needed is
provided in the two charts which follow but if you are not technically inclined, seek help
from an appropriately trained individual since cables will have to be constructed and
programs written to use the RS-232 capabilities.
5.3.1 Connector Pin Outs
5.3.2 Communications Protocol
Baud Rate: 115200 bps
Data Structure: 8 Bits
Parity: None
Stop Bit: 1 Bit
5.3.3 Command Set
The table on the following page contains the command set that is available for control of
the 1T-SX-644. You should adhere to this structure when controlling the unit via a
computer or a hardwired controller.
HDMI Switcher Control Unit
PIN Definition PIN Definition
1 NC 1 NC
2 TxD 2 RxD
3 RxD 3 TxD
4 NC 4 NC
5 GND 5 GND
6 NC 6 NC
7 NC 7 NC
8 NC 8 NC
9 NC 9 NC

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Command Code Response Description
s port a >Select Input Port A Select Input Port A
s port b >Select Input Port B Select Input Port B
s port c >Select Input Port C Select Input Port C
s port d >Select Input Port D Select Input Port D
s menu 0 >OSD MENU Off OFF : No Display On-Screen MENU
s menu 1 >OSD MENU On ON : Display On-Screen MENU
s info 0 >OSD System Information
Off OFF : No Display On-Screen System Information
s info 1 >OSD System Information
On ON : Display On-Screen System Information
s menuct u >MENU Cursor Up Move MENU Project Up Move
s menuct d >MENU Cursor Down
Move MENU Project Down Move
s menuct l >MENU Cursor Left Move MENU Project Left Move
s menuct r >MENU Cursor Right
Move MENU Project Right Move
s menuct e >MENU Cursor Enter MENU Project Enter
s arctx 1 >ARC mode is on ARC Mode Is On
s arctx 0 >ARC mode is off ARC Mode Is Off
s reset >System Reset System Reset
r port >Select port ? Show Select Input Port Status
r arctx >ARC mode is ? Show ARC Mode Status
r fwver >FW Version : Vx.xx Show Firmware Version

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6.0 TROUBLESHOOTING
In the event of problems, first make certain that the input and output cables are no more
than 50 feet long (for signals to 1080i resolution) and are of the highest possible quality.
Next, make certain that the Switcher is receiving power.
If all is well in these areas, remember that HDMI devices communicate with one another
so the source devices and destination device must be fully HDMI capable. In addition,
HDCP encryption requires additional processing which also is dependent on the
equipment you have connected to the sources and destination device. If you experience
problems using the 1T-SX-644 HDMI Switcher, you should attempt to determine what is
wrong by attaching each of the source devices – one at a time – directly to the
destination device 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(s) or the destination device.
After trying the above suggestions should the problem still persist, contact your dealer
for additional suggestions before contacting TV One. Should the dealer’s technical
personnel be unable to assist you, contact TV One via our support website:
http://tvone.crmdesk.com. Create a technical support request on the site and our
support team will respond within a short period of time.
7.0 LIMITED WARRANTY
TV One warrants the original purchaser that the equipment it manufactures or sells will
be free from defects in materials and workmanship for a fixed term from the date of
purchase. The warranty term for specific product lines is defined below.
1. TV One branded products based on TV One’s CORIO technology are warranted for
a period of five years from the date of purchase. This includes products with the
model number prefix of C2, 1T-C2, CX, A2 or S2.
2. TV One-task branded products, other than those based on TV One’s CORIO
technology mentioned above, are warranted for a period of three years from the date
of purchase. This includes products with the model number prefix of 1T, with the
exception of 1T-C2.
3. LCD Monitors are warranted for a period of three years from the date of purchase,
with the exception of the LCD panels integrated into the monitors that are supplied
by third parties. LCD panels are limited to the term and conditions of the warranty
offered by the respective LCD panel manufacturer. Such specific LCD panel
warranties are available upon request to TV One.
Should a product, in TV One’s opinion, prove defective within this warranty period, TV
One, at its option, will repair or replace this product without charge. Any defective parts

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replaced become the property of TV One. This warranty does not apply to those
products which have been damaged due to accident, unauthorized alterations, improper
repair, modifications, inadequate maintenance and care, or use in any manner for which
the product was not originally intended.
If repairs are necessary under this warranty policy, the original purchaser must obtain a
Return Authorization Number from TV One and return the product to a location
designated by TV One, freight prepaid. After repairs are complete, the product will be
returned, freight prepaid.
LIMITATIONS - All products sold are "as is" and the above Limited Warranty is in lieu of
all other warranties for this product, expressed or implied, and is strictly limited to two
years from the date of purchase. TV One assumes no liability to distributors, resellers or
end-users or any third parties for any loss of use, revenue or profit.
TV One makes no other representation of warranty as to fitness for the purpose or
merchantability or otherwise in respect of any of the products sold. The liability of TV
One with respect to any defective products will be limited to the repair or replacement of
such products. In no event shall TV One be responsible or liable for any damage
arising from the use of such defective products whether such damages be direct,
indirect, consequential or otherwise, and whether such damages are incurred by the
reseller, end-user or any third party.
8.0 REGULATORY COMPLIANCE
The 1T-SX-644 HDMI Switcher has been tested for compliance with appropriate FCC
and CE rules and regulations. The Power Adaptor/Supplies have been tested for
compliance with appropriate UL, CUL, CE, PSE, GS Rules, Regulations and/or
Guidelines. These Products and Power Adapters are RoHS Compliant.

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9.0 CONTACT INFORMATION
Should you have questions or require assistance with this product in areas not covered
by this manual, please contact TV One at the appropriate location.
TV One USA
2791 Circleport Drive
Erlanger, KY 41018
USA
Tel [phone]
Fax [phone]
[email protected]
www.tvone.com
TV One Europe
Continental Approach
Westwood Industrial Estate
Margate, Kent CT9 4JG, UK
Tel [phone]
Fax [phone]
[email protected]
www.tvone.eu
TV One Latin America
6991 NW 82 Avenue #8
Miami, FL 33166
USA
Tel [phone]
Fax [phone]
[email protected]
www.tvonela.com
TV One Mercosur
AV Diaz Velez 3965 PB
Capital Federal (1200)
Buenos Aires, Argentina
Tel [phone]
Fax [phone]
[email protected]
www.tvonela.com
TV One Asia
16F-4, No.75, Sec.1
Hsin Tai Wu Rd., Hsichih
Taipei Hsien 22101
Taiwan R.O.C.
Tel [phone]
Fax [phone]
[email protected]
www.tvoneasia.com
TV One China
Room 1007, Golden Peach Building
No. 1900 Shangcheng Road
Pudong, Shanghai
China 200120
Tel [phone]
Fax [phone]
[email protected]
www.tvonechina.com
End of Manual