Monoprice Blackbird 44555 User manual

P/N 44555
User Manual
Blackbird™ by Monoprice™
HDMI Switch | 3x HDMI + 1 X USB-C

1
Thank you for Purchasing this Product
To ensure optimum performance and safety, read the following instructions before
connecting, operating, or adjusting the product. Keep this manual for future
reference.
Table of Contents
Introduction.................................................................................................................................................................................2
Features...........................................................................................................................................................................................3
Package Contents.................................................................................................................................................................. 4
Ports and Interface ............................................................................................................................................................... 4
Troubleshooting.......................................................................................................................................................................5
Specifications .............................................................................................................................................................................6

2
Introduction
The HDMI
™
3x HDMI
™
+ 1x USB-C 4K switcher 4K@60Hz 4:4:4 features a display or
projector with three HDMI-enabled video sources and one USB-C-enabled video
source. The switcher features four independent (3 for HDMI
™
and 1 for USB-C)
inputs that each support 4K resolution and 7.1 surround sound audio. It's amazing
how this video switch maintains Ultra HD picture quality. 4K is supported by the
latest A/V devices and delivers four times the resolution of 1080p. Plus, because
the switch is backward compatible with high definition 1080p, rest assured any
video source will look great in your digital signage application. Enjoy hassle-free
operation with three different switching modes:
1. Manual Port Switching: Enables manual selection for HDMI
™
source with an
easy-to-use panel button.
2. Remote Control Switching: Enables controlling the switch at a distance.
3. Automatic Port Switching: Enables the most recently activated video source to
be displayed automatically.
It also features the Automatic and Manual Switching mode change function and IR
receiver on/off function via a long press of the switch button for 3 and 6 seconds
to meet customers’ needs. And it affords a USB-A and USB-C port for charging
which needs a power supply below 5 watts (5V 1A) max each using the charging
port, non-simultaneously.

3
Features
• Manual Port Switching/Automatic Port Switching that can alternate by long
pressing the selector button for 3-5 seconds or pressing the “AUTO” button to
change the states directly
• 3x HDMI + 1x USB-C input supported
• USB-A and USB-C ports up to 5 watts (5V 1A) max each
• Full 3D Video Format
• High Resolution up to 4K@60Hz YUV 4:4:4
• HDCP 2.2 and HDCP 1.4
• Compatibility with Thunderbolt 3 for USB-C input
• Compatibility with DP1.4 alt mode for USB-C input
• High Dynamic Range (HDR) Video
• Consumer Electronics Control
• Highest Data Transfer Rate up to 6.0Gbps per channel (18Gbps for all channels)
• TMDS Clock up to 600MHz
• 12bit per Channel (36bit all channels) deep color
• IR receiver on/off function via long-pressing the selector button for 6 seconds
or pressing the IRA button to control the function on/off
• Supports Uncompressed Audio such as LPCM
• Supports Compressed Audio such as DTS and Dolby Digital (including DTS-HD
Master Audio
™
and Dolby TrueHD)
Note:
1. The USB-C-equipped device must support video to work with the switcher's
USB-C input port.
2. If the customer wants to output 4K@60Hz 4:4:4 for the USB-C input port, the
notebook's USB-C output must have enough bandwidth (compatible with the
DP 1.4 standard or thunderbolt 3) to transmit the 4K@60Hz 4:4:4 signal.
3. The USB-C cable must be a USB 3.1 standard cable (not included) that supports
audio/video transmission to ensure picture output.

4
Package Contents
• 1x Main Unit
• 1x 5V 2A Micro-USB Power Adapter
• 1x Remote Control
• 1x User Manual
Ports and Interface
1. Power LED Indicator
2. USB-C1: USB-C Input1 LED Indicator
3. IN2/3/4: HDMI Input2/3/4 LED
Indicator
4. AUTO: Auto Mode LED Indicator,
ON is In Automatic Switching
Mode
OFF is in Manual Switching Mode
5. IR: IR Mode LED Indicator,
ON is In normal IR receiver Mode
OFF is in no IR Function Mode
6. IR: IR Receiver Port for Remote
Control
7. USB-A: Connect to the Device for
Charging via the USB-A Port
8. SELECT: Select Input Port Button
9. Micro-USB: Micro USB Power In
Port
10. USB-C1: USB-C Input Port
11. IN2/3/4: HDMI IN2/3/4 Input Port
12. OUT: HDMI Output Port

5
13. Power: To turn on/off the switcher
14. 1-4: To select the input source accordingly.
15. To turn on/off the IR receiver function of the
switcher IR mode LED indicator, "ON" is in normal IR
receiver mode while "OFF" is in no IR function mode.
Troubleshooting
Problems
Causes
Solutions
Power light is
off and the
product is not
working
1. The USB Power Cable
might not be properly
connected.
2. The HDMI Input source
is turned off.
1. Please check if the power
adapter is connected properly.
2. Switch on the HDMI input
source.
Screen splash
1. HDMI cable may not be
HDMI 2.0-specified.
2. The cable is too long.
1. Use the standard HDMI 2.0
cable.
2. The input/output cable length
must not exceed 4M 4K/60Hz
4:4:4, and 4K@30Hz/1080p can
reach 10M to 10M.
Remote control
is not working
properly
1. The battery seal is
stuck. The battery is
not working.
1. Please remove the battery seal
clearly.
2. Replace the battery.

6
Can’t get the
4K@60Hz 4:4:4
resolution into
the USB-C input
port
1. The USB-C output
bandwidth is not
working.
1. Switch to a device with the DP
1.4 standard or thunderbolt 3 to
get 4K@60Hz 4:4:4 out.
Specifications
PID
44555
Input Ports
HDMI x 3, USB-C x 1
Output Ports
HDMI x 1, USB-A x 1, USB-C x 1
Vertical Frequency Range
50/60Hz
Video Amplifier Bandwidth
6.0Gbps/600MHz per channel (18Gbps all channels)
Interlaced (50&60Hz)
480i, 576i, 1080i
Progressive (50&60Hz)
480p, 576p, 720p, 1080p, 4K@24/25/30/50/60Hz
Limited Warranty
1-Year Parts and Labor
Operating Temperature
0℃to 50℃
Storage Humidity
5% to 80% RH Non-Condensation
Power Supply
5V 2A Micro-USB Power Adapter
Power Consumption (Max)
10W
Switcher Unit Cert
FCC and RoHS
Dimension (LxWxH)
139x64.5x15mm
Net Weight
190g
Material
Metal

7
CUSTOMER SERVICE
The Monoprice Customer Service department is dedicated to ensuring that your
ordering, purchasing, and delivery experience is second to note. If you have any
problems 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 [email protected].
Check the website for support times and links.
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
[email protected]. Check the website for support times and links.
To download the latest drivers, firmware, manuals, etc., go to www.monoprice.com
and type 44555 into the search bar. If available, support files are linked at the
bottom of the product page.

8
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
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.

9
Notice for ISED 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.
Dolby is a trademark of Dolby Laboratories.
The Adopted Trademarks HDMI, HDMI High-Definition Multimedia Interface, and
the HDMI Logo are trademarks or registered trademarks of HDMI Licensing
Administrator, Inc. in the United States and other countries.
All other trademarks, registered trademarks, or service marks are the property of
their respective owners.
Monoprice
™
and all Monoprice logos are trademarks of Monoprice Inc.

Need Help? We’re here for you!
Contact us: www.monoprice.com/contactus
Product pictures are for reference only.
Specifications described herein are subject to change without prior notification.
Monoprice™ and all Monoprice logos are trademarks of Monoprice Inc.
Copyright © 2023 Monoprice, Inc. All rights reserved.
Monoprice, Inc.
1 Pointe Drive, Suite 400
Brea, CA 92821 – USA
www.
monoprice.
com
www.monoprice.com