Logic LG-HMS4x2-H User manual

4 x 2 HDMI 2.0 Matrix Switcher with Audio
Extract/Scale/ARC/EDID function
Model No. LG-HMS4x2-H
Version: LG-HMS4x2-H_2021

LG-HMS4x2-H
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SAFETY PRECAUTIONS
For optimum performance and safety, please read these instructions carefully before connecting, operating, or
adjusting this product. Please keep this manual for future reference.
SURGE PROTECTION DEVICE RECOMMENDED
This product contains sensitive electrical components that may be damaged by electrical spikes, surges, electric shock,
lighting strikes, etc. Use of surge protection systems is highly recommended in order to protect and extend the life of
your equipment.

LG-HMS4x2-H
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Table of Contents
1Introduction..............................................................................................................................................1
2Features....................................................................................................................................................1
3Package Contents......................................................................................................................................1
4Specification .............................................................................................................................................2
5Operation Controls and Functions ............................................................................................................2
5.1 Front Panel ...............................................................................................................................................2
5.2 Rear Panel ................................................................................................................................................ 4
6IR Remote .................................................................................................................................................6
7Application Example .................................................................................................................................7
8FAQ...........................................................................................................................................................7

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1Introduction
This high-performance HDMI Matrix Switcher can switch any of four HDMI sources to two HDMI displays. It supports
resolution up to 4K2K@60Hz YCbCr 4:4:4 and HDCP 2.2. It can extract HDMI source device audio to optical and
Analog L/R output. It supports 4K 1080P downscale function if source is 4K, but TV only supports up to 1080P. It also
supports ARC and EDID (AUTO/COPY/ STD) function with its 18 Gbps bandwidth and the additional features with the
latest HDMI standards. Provide flexible control via front panel buttons and IR remote.
2Features
▪HDMI 2.0, HDCP 2.2 / HDCP 1.4 and DVI 1.0 compliant
▪Supports 4 HDMI inputs and 2 HDMI outputs
▪Video resolution up to 4K2K@60Hz YCbCr 4:4:4
▪Supports 18 Gbps uncompressed bandwidth on all HDMI
▪Supports Dolby Vision, HDR 10+, HLG and CEC function
▪Supports extract HDMI input source device audio of OUT A or OUT B to optical and Analog L/R output
▪OUT A and OUT B support 4K to 1080P downscale function
▪Supports ARC (Audio Return Channel) function
▪Supports advanced EDID management including AUTO, COPY and STD
▪Control is via front panel buttons and IR remote
3Package Contents
(1) 1×4 × 2 HDMI2.0 Matrix Switcher
(2) 1×12 V/1 A Locking Power Adapter
(3) 2×Mounting Ears
(4) 1×IR Remote
(5) 1×User Manual

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4Specification
Technical
HDMI Compliance
HDMI 2..0
HDCP Compliance
HDCP 2..2 and HDCP 1.4
Video Bandwidth
18 Gbps
Video Resolution
Up to 4K2K@50/60Hz (YCbCr 4:4:4), [email protected]
HDMI 3D TV format, etc.
Color Space
RGB, YCbCr4:4:4, YCbCr4:2:2, YCbCr 4:2:0
Color Depth
8-bit, 10-bit, 12-bit [1080P, 4K30Hz, 4K60Hz (YCbCr
4:2:0)]
8-bit [4K60Hz (YCbCr4:4:4)]
HDMI Audio Formats
PCM2.0/5.1/7.1CH, Dolby Digital/Plus/EX, Dolby True
HD, DTS, DTS-EX, DTS-96/24, DTS High Res, DTS-HD
Master Audio, DSD
Optical Audio Formats
PCM2.0, Dolby Digital / Plus, DTS
L/R Audio Formats
PCM2.0CH
(Note: If ARC function is turned on, the audio port
will mute.)
ESD Protection
Human-body Model: ±8kV (Air-gap discharge),
±4kV (Contact discharge)
Connection
Input Ports
4 ×HDMI Type A [19-pin female]
Output Ports
2 ×HDMI Type A [19-pin female]
1 ×L/R audio out [3.5 mm Stereo Mini-jack] 1 ×
OPTICAL audio out [S/PDIF]
Mechanical
Housing
Metal Enclosure
Color
Black
Dimensions
251 mm (W)×105 mm (D)×20 mm (H)
Weight
620 g
Power Supply
Input: AC100~240 V 50/60 Hz Output: DC 12 V/1 A
Power Consumption
3.8 W (max.)
Operation Temperature
0 °C ~ 40 °C / 32 °F ~ 104 °F
Storage Temperature
-20 °C ~ 60 °C / -4 °F ~ 140 °F
Relative Humidity
20~90% RH (Non-condensing)
5Operation Controls and Functions
5.1 Front Panel

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Number
Name
Function Description
1
Power LED
The blue LED illuminates when the product is
connected with the power supply.
2
IR
IR receiver window. It only receives IR remote signal
from this product.
3
OUT A button and LED
Press the OUT A button to select an input source to
OUT A output, the corresponding blue LED illuminates.
AUTO LED
The blue AUTO LED illuminates, and the AUTO function
will be turned on when you press the OUT A button
up to 3 seconds. Press the OUT A button up to 3
seconds again and turn off the AUTO function.
AUTO function: Detect input signal source. The AUTO
function is turned on, if an, or a few HDMI IN ports are
connected source device, OUT A port will output the
signal from the last connected input source.
4
OUT B button and LED
Press the OUT B button to select an input source to
OUT B output, the corresponding blue LED illuminates.
AUTO LED
The blue AUTO LED illuminates, and the AUTO function
will be turned on when you press the OUT B button up
to 3 seconds, press the OUT B button up to 3 seconds
again to turn off the AUTO function.
AUTO function: Detect input signal source. The AUTO
function is turned on, if an, or a few HDMI IN ports are
connected source device, OUT B port will output the
signal from the last connected input source.
5
AUDIO Button
Press AUDIO button to select extract the input source
audio from OUT A port or OUT B port to optical and
Analog L/R output, the corresponding blue LED
illuminates.
If ARC function is turned on, press AUDIO button to
select return the audio signal from OUT A or OUT B
display device to optical output, the corresponding
blue LED illuminates. At this time, the Analog L/R port is
mute.
6
4k 1080P
Button
Press the button to select OUT A or OUT B 4k 1080P
downscale function, the corresponding blue LED
illuminates. For example, if source is 4K but TV only
supports 1080P, at this time the input resolution with
4K will downscale to 1080P to TV output.
7
ARC Button
Turn on / off ARC function. The blue ARC LED
illuminates when you turn on the ARC function.

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5.2 Rear Panel
Number
Name
Function Description
1
HDMI IN Port
HDMI input ports, connect to HDMI source device such as DVD or PS4
with an HDMI cable.
2
HDMI OUT A / OUT B Port
HDMI output ports, connect to HDMI display device such as TV or
Projector with an HDMI cable.
3
OPTICAL / L/ R Port
Connect to audio output device such as amplifier or speaker with
optical and Analog audio cable.
4
EDID AUTO / COPY / STD
AUTO: Compare with Out A and Out B display device EDID information,
and then send the best EDID information to source device of Out A and
Out B. The source device of Out A and Out B will send the EDID
information again to Out A and Out B display device output.
COPY: Copy Out A display device EDID information to source device of
Out A and Out B. Then the source device of Out A and Out B will send
the EDID information again to Out A and Out B display device output.
STD: Out A and Out B display device output default 1080P
5
SERVICE Port
Firmware update port.
6
DC 12 V
Plug in 12 V/1 A adapter to AC wall outlet for power supply.

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6IR Remote
Output B
1/2/3/4
Select input source signal to Out B port output, the corresponding
blue LED on the front panel will illuminate.
Select the last or next input source signal to OUT B port output, the
corresponding blue LED on the front panel will illuminate.
AUTO
Detect input signal source. The Auto function is turned on, if an, or a
few HDMI IN ports are connected source device, Out B port will
output the signal from the last connected input source.
4K/HD
Select Out B 4k 1080P downscale function. For example, if source is
4K but TV only supports 1080P, at this time the input resolution with 4K
will downscale to 1080P to TV output
Audio function
ARC
Turn on / off ARC function.
Audio A / B
If ARC function is turned on, press Audio A or B button to select return
the audio signal from Out A or Out B display device to optical port
(TOSLINK) output. At this time, the Analog L/R port (Audio out) is mute.
extract the input source audio from Out A port or Out B port to
optical port (TOSLINK) and Analog L/R port (Audio out) output.

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7Application Example
8FAQ
1. Q: Does this product require an HDMI line length for the connection interface?
A: According to HDMI line length test, HDMI input / output with 4K60Hz YCbCr 4:4:4 is the longest line length up to 8
m / 3 m. The use of “Premium High-Speed HDMI” cable is highly recommended. IR remote sends signal distance for 0 -
7 meters, and the angle is plus-minus 45°.