Blackbird 36741 User manual

4K 1x2 HDMI® Splitter
P/N 36741
User's Manual

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SAFETY WARNINGS AND GUIDELINES
Please read this entire manual before using this device, paying extra attention to
these safety warnings and guidelines. Please keep this manual in a safe place for
future reference.
•This device is intended for indoor use only.
•Do not expose this device to water or moisture of any kind. Do not place
drinks or other containers with moisture on or near the device. If
moisture does get in or on the device, immediately remove it from its
power source and allow it to fully dry before reapplying power.
•Do not touch the device, the power cord, or any other connected cables
with wet hands.
•Do not expose this device to excessive vibration or extreme force,
shock, or fluctuations in temperature or humidity.
•Do not expose this device to excessively high temperatures. Do not
place it in, on, or near a heat source, such as a fireplace, stove, radiator,
etc. Do not leave it in direct sunlight.
•Do not place or install this device in an area where it can be exposed to
excessive amounts of dust, humidity, oil, smoke, or combustible vapors.
•Prior to operation, check the unit and power cord for physical damage.
Do not use if physical damage has occurred.
•Before plugging the unit into a power outlet, ensure that the outlet
provides the same type and level of power required by the device.
•Unplug this device from the power source when not in use.
•Take care to prevent damage to the power cord. Do not allow it to
become crimped, pinched, walked on, or become tangled with other
cords. Ensure that the power cord does not present a tripping hazard.
•Never unplug the unit by pulling on the power cord. Always grasp the
connector head or adapter body.

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•Clean using a soft, dry cloth only. Do not use chemical cleaners, solvents,
or detergents. For stubborn deposits, moisten the cloth with warm
water.
•This device has no user serviceable parts. Do not attempt to open,
service, or modify this device.
INTRODUCTION
This Blackbird™ 4K 1x2 HDMI® Splitter distributes a single 4K HDMI signal to two
HDMI displays. It supports video resolutions up to 4K@60Hz with YCbCr 4:4:4
color space and can independently scale each output from 4K to 1080p when
connected to a 1080p display. It fully complies with the HDMI 2.0 and HDCP™ 2.3
specifications and delivers up to 18Gbps bandwidth. It supports the Consumer
Electronics Control (CEC) HDMI feature, Dolby Vision™, and HDR10. It can copy
the EDID® data from the displays in the priority order Out 1 > Out 2. It has a built-
in signal equalizer, which allows for use of longer than normal cables. It has
upgradable firmware.

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FEATURES
•Distributes a single HDMI® signal to two HDMI displays
•Supports video resolutions up to 4K@60Hz with YCbCr 4:4:4 color space
•Fully complies with the HDMI 2.0 and HDCP™ 2.3 specifications
•Up to 18Gbps video bandwidth
•Supports Dolby Vision™ and HDR10
•Built-in signal equalizer allows for use of longer than normal cables
•Each output can independently scale from 4K to 1080p when connected
to a 1080p display
•Copies EDID® data in the priority order Out 1 > Out 2
•Supports the Consumer Electronics Control (CEC) HDMI feature
•Upgradable firmware
CUSTOMER SERVICE
The Monoprice™ Customer Service department is dedicated to ensuring that
your ordering, purchasing, and delivery experience is second to none. If you have
any problem with your order, please give us an opportunity to make it right. You
can contact a Monoprice Customer Service representative through the Live Chat
link on our website www.monoprice.com or via email at
[e-mail]. Check the website for support times and links.

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PACKAGE CONTENTS
Please take an inventory of the package contents to ensure you have all the
items listed below. If anything is missing or damaged, please contact
Monoprice™ Customer Service for a replacement.
1x 4K 1x2 HDMI® Splitter
1x AC Power Adapter (5 VDC, 1A)
1x User's Manual
PRODUCT OVERVIEW
1. Power: The LED illuminates red when power is applied.
2. Input: The LED illuminates blue when there is an active HDMI® signal on
the input.
3. In: HDMI port for connecting an HDMI video source device.
4. Downscaler On/Off: Slide switch for turning the video Downscaler on or
off.
5. FW/DC 5V: Micro USB port for powering the splitter using the included
AC power adapter. The port is also used for performing a firmware
update, in the event that one is made available.
6. Out 2: HDMI port for connecting an HDMI display. The LED to the left of
the port illuminates blue when there is a display connected.
7. Out 1: HDMI port for connecting an HDMI display. The LED to the left of
the port illuminates blue when there is a display connected.

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SAMPLE CONNECTION DIAGRAM
VIDEO DOWNSCALING
The system supports automatic independent downscaling of the 4K input signal
for each output when connected to a 1080p display. The following table shows
the input and output resolutions, refresh rates, and color spaces.
Input
Output
Resolution
Refresh
Color
Space
Resolution
Refresh
Color
Space
4K
60
4:4:4
1080p
60
4:4:4
4K
30
4:4:4
1080p
30
4:4:4
4K
24
4:4:4
1080p
24
4:4:4
4K
60
4:2:0
1080p
60
4:4:4
4K
30
4:2:0
1080p
30
4:4:4
4K
24
4:2:0
1080p
24
4:4:4

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Input
Output
Resolution
Refresh
Color
Space
Resolution
Refresh
Color
Space
4K
60
4:2:2
Not supported
4K
30
4:2:2
Not supported
4K
24
4:2:2
Not supported
FIRMWARE UPGRADE
Perform the following steps to upgrade the system firmware, in the event that
an upgrade is available.
1. Go to the www.monoprice.com website and type 36741 in the search
bar. Locate the Support Files section at the bottom of the page, then
download the firmware upgrade zip file.
2. Extract the .bin firmware upgrade file from the zip file.
3. Ensure the splitter is powered off and unplugged from its power source.
4. Plug one end of a Micro USB cable (available separately) into the FW/DC
5V port on the splitter, then plug the other end into an available USB
port on your computer.
5. Your computer will recognize a U-disk named BOOTDISK.
6. Double-click the BOOTDISK U-disk to display the files on the drive. There
should be a file named READY.TXT.
7. Copy the firmware upgrade .bin file to the BOOTDISK U-disk.
8. Double-click the BOOTDISK U-disk to display the files on the drive. The
READY.TXT file should have been replaced with a SUCCESS.TXT file. If
not, double-check the .bin filename and try again.
9. Unplug the Micro USB cable from the splitter and from your computer.

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SPECIFICATIONS
P/N
36741
Video Inputs
1x HDMI®
Video Outputs
2x HDMI
Maximum Video Resolution
4K@60Hz with YCbCr 4:4:4 color space
HDMI Version
2.0
HDCP™ Version
2.3
Video Bandwidth
up to 18Gbps
Maximum Total Cable Lengths
4K@60Hz 4:4:4: ≤ 16 feet (5 meters)
4K@60Hz 4:2:0: ≤ 32 feet (10 meters)
1080p@60Hz: ≤ 49 feet (15 meters)
Supports Dolby Vision™
Yes
Supports HDR10
Yes
Input Power
5 VDC, 1A
AC Adapter Input Power
100 ~ 240 VAC, 50/60 Hz
Maximum Power Consumption
1.8 watts
Operating Temperature
+14 ~ +131°F (-10 ~ +55°C)
Storage Temperature
-13 ~ +158°F (-25 ~ +70°C)
Operating Humidity
10 ~ 90% RH, noncondensing
Dimensions (WxHxD)
3.3" x 0.7" x 3.3" (85 x 18 x 85 mm)
Weight
2.5 oz. (70 g)

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TECHNICAL SUPPORT
Monoprice™ is pleased to provide free, live, online technical support to assist
you with any questions you may have about installation, setup, troubleshooting,
or product recommendations. If you ever need assistance with your new
product, please come online to talk to one of our friendly and knowledgeable
Tech Support Associates. Technical support is available through the online chat
button on our website www.monoprice.com or through email by sending a
message to [e-mail]. Check the website for support times and links.
To download the latest drivers, firmware, manuals, etc., go to
www.monoprice.com and type the P/N into the search bar. If available, support
files are linked at the bottom of the product page.
REGULATORY COMPLIANCE
Notice for FCC
This device complies with Part 15 of the FCC rules. Operation is subject to the
following two conditions: (1) this device may not cause harmful interference, and
(2) this device must accept any interference received, including interference that
may cause undesired operation.
Modifying the equipment without Monoprice's authorization may result in the
equipment no longer complying with FCC requirements for Class B digital
devices. In that event, your right to use the equipment may be limited by FCC
regulations, and you may be required to correct any interference to radio or
television communications at your own expense.
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential

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installation. This equipment generates, uses and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this
equipment does cause harmful interference to radio or television reception,
which can be determined by turning the equipment off and on, the user is
encouraged to try to correct the interference by one or more of the following
measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to
which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
Notice for Industry Canada
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du
Canada.
Monoprice™, Blackbird™, the Blackbird logo, and all Monoprice logos are trademarks of
Monoprice Inc.
HDMI®, the HDMI Logo, and High-Definition Multimedia Interface are trademarks or
registered trademarks of HDMI Licensing LLC in the United States and other countries.
Dolby®, Dolby Vision™, and the double-D symbol are trademarks of Dolby Laboratories.
HDCP™ is a trademark of Digital Content Protection LLC.
EDID® is a registered trademark of the Video Electronics Standards Association.