GoMax Electronics MA-5422H User manual

4x2 HDMI 2.0a Matrix
User Manual
rev: 151210
Made in Taiwan
MA-5422H

Safety and Notice
The MA-5422H 4x2 HDMI 2.0a Matrix has been tested for conformance to safety regulations and
requirements, and has been certified for international use. However, like all electronic equipments,
the MA-5422H should be used with care. Please read and follow the safety instructions to protect
yourself from possible injury and to minimize the risk of damage to the unit.
●Follow all instructions and warnings marked on this unit.
●Do not attempt to service this unit yourself, except where explained in this manual.
●Provide proper ventilation and air circulation and do not use near water.
●Keep objects that might damage the device and assure that the placement of this unit is on a
stable surface.
●Use only the power adapter and power cords and connection cables designed for this unit.
●Do not use liquid or aerosol cleaners to clean this unit. Always unplug the power to the device
before cleaning.
TABLE OF CONTENTS
INTRODUCTION.................................................................................................................1
FEATURES.........................................................................................................................1
PACKAGE CONTENTS......................................................................................................1
SPECIFICATIONS..............................................................................................................2
PANEL DESCRIPTIONS.....................................................................................................3
CONNECTION DIAGRAM ..................................................................................................4
OPERATION APPROACH..................................................................................................5
EDID LEARNING..............................................................................................................13
FAQ ..................................................................................................................................14
WARRANTY .....................................................................................................................15

1
INTRODUCTION
The MA-5422H 4x2 HDMI 2.0a Matrix provides the most flexible and cost effective solution in the
market to route high definition video sources plus multi-channel (up to 7.1-channel) digital audio from any
of the four HDMI sources to the remote displays at the same time. This solution is well suited for use in
home theater, conference room presentation systems, or other similar setting or application.
FEATURES
HDMI 2.0a compliant
Supports 4K2K@60 4:4:4 8bits
Supports HDR*, which is 4K2K@60 4:2:0 10bits**
HDCP 2.2 and 1.4 compliant
Wide frequency range: 25MHz~600MHz
Video bandwidth: 18Gbps
Supports xvYCC, x.v.Color & Deep Color
Supports Dolby Digital(+), DTS-HD and Dolby TrueHD audio
Allows any source to be displayed on multiple displays at the same time
Allows any HDMI display to view any HDMI source at any time
Supports default HDMI EDID and learns the EDID from displays
The matrix master can switch every output channel to any HDMI input by IR remote control, RS-232
control, IP control and web interface.
Easy installation with rack-mounting and wall-mounting designs for master and receiver respectively
Supports ARC from Output2
PACKAGE CONTENTS
●1x MA-5422H ●1x DC 5V 4A
●1x IR receiver ●1x IR Remote control*
●1x Rack-mounting ear set ●1x User Manual
●1x Installation software CD
* HDR = High Dynamic Range.
** The video bandwidth of 4K2K@60 4:2:0 10bits (HDR) is 384MHz, and the 4K2K@60 4:4:4 8bits
is 594MHz

2
SPECIFICATIONS
Model Name
MA-5422H
Technical
Role of usage
True 4x2 matrix
HDMI compliance
3D & 4K2K@60Hz
HDCP compliance
Yes
Video bandwidth
Single-link 594MHz [18 Gbps]
Video support
Up to HDR 4K2K@60 (4:2:0 10bits) / 4K2K@60 (4:4:4 8bits)
Audio support
Surround sound (up to 7.1ch) or stereo digital audio
ESD protection
Human body model — ±15kV [air-gap discharge] & ±8kV [contact discharge]
Input
4x HDMI / 1x RS-232 / 1x Ethernet
Output
2x HDMI / 2x SPDIF / 2x RCA
IR remote control
Electro-optical characteristics: π= 25° / Carrier frequency: 38kHz
HDMI connector
Type A [19-pin female]
RJ-45 connector
WE/SS 8P8C with 2 LED indicator
RS-232 connector
DE-9 [9-pin D-sub female]
Mechanical
Housing
Metal enclosure
Dimensions
[L x W x H]
Model
290 x 71 x 43mm [11.4" x 2.8" x 1.7"]
Package
376 x 240 x 112mm [1'2" x 9.4 x 4.4"]
Carton
590 x 510 x 405mm [1'9" x 1'7" x 1'3"]
Weight
Model
792g [1.7 lbs]
Package
1600g [3.5 lbs]
Fixedness
1RU rack-mount with ears and Wall hanging holes
Power supply
5V 4A DC
Power consumption
20 Watts [max]
Operation temperature
0~40°C [32~104°F]
Storage temperature
-20~60°C [-4~140°F]
Relative humidity
20~90% RH [no condensation]

3
PANEL DESCRIPTIONS
Front Panel
1. Power LED: Power indicator LED
2. System IR Receiver:Ext. IR receiver
3. Port 2 Channel Push Button: Select input channel
4. Port 1 Channel Push Button: Select input channel
5. Selected Source Status LED: When users use port channel push button, the indicator LED
will show the selected source
Rear Panel
6. Input 1~4: HDMI inputs
7. S/PDIF Out [ARC][From the display connected to Output 2]: Connect to an S/PDIF digital
audio output
8. Output 1~2: HDMI output ports
9. SPDIF Out [Follow Output 2]: Connect to an S/PDIF digital audio output
10. Stereo Out – R[Follow Output 2]: Connect to an analog audio output
11. Ethernet: Ethernet control port
12. +5V DC: 5V 4A DC power jack
13. Stereo Out – L[Follow Output 2]: Connect to an analog audio output
14. RS-232: RS-232 control port

4
CONNECTION DIAGRAM

5
OPERATION APPROACH
Method A: Push-in Button
1. IN/OUT MAP
1) Use Port 1 or Port 2 Channel Push Button to select the source
2) Input1~4 can be selected in order
Method B: IR Remote Control
1. IN/OUT Switch
Push the button on the checkerboard to select Input & Output port.
Ex: Select Input 3 to Output 2
Push the red circle button as below to select Input 3 to Output 2

6
2. Function Key
Button
Function
OFF
Standby mode
ON
Power on the matrix switcher
MUTE
Turn off output’s video and audio
STATUS
Preset output status
SAVE
Save current mapping mode
PRESET
Preset mapping mode
DEFAULT EDID
Begin default EDID selection
LEARN EDID
Begin EDID learning from one output
CLEAR
Clear the previous IR operation procedure
TAKE
Trigger the previous setting
F1
Reserved
F2
Reserved
Operation Procedure
Output Status Status + A~B(Output 1~2) + Take
Ex: Output 2
(Input 2)
1.Press “STATUS” button
2.Press number key “B” to select Output 2
3.Press “TAKE” button
Save Current Mapping Save + A~H(1-8 storage site) + Take
Ex: Save current mapping to 5
1.Press “SAVE” button
2.Press number key “E” to select the storage site 5
3.Press “TAKE” button
Preset Mapping Preset + A~H(1-8 storage site) + Take
Ex: Preset saved mapping from 5
1.Press “PRESET” button
2.Press number key “E” to select the storage site 5
3.Press “TAKE” button
Learn default EDID Default EDID + A~H(1-8 default EDID) +
Ⅰ~Ⅳ(input 1~4)
+ Take
Ex: Default EDID 2
Input 3
1.Press “DEFAULT EDID” button
2.Press number key “B” to select default EDID 2
3.Press number key “ Ⅲ” to select Input 3
4.Press “TAKE” button
Learn Output EDID Learn + A~B(Output 1~2) +
Ⅰ
~
Ⅳ
(input 1~4) + Take
Ex: Learn Output 2
Input 3
1.Press “LEARN” button
2.Press number key “B” to select Output 2
3. Press number key “ Ⅲ” to select Input 3
4.Press “TAKE” button
Mute Output Mute + A~B(Output 1~2) + Take
Ex: Mute Output 2 1. Press “MUTE” button
2. Press number key “B” to select Output 2
3.Press “TAKE” button

7
Method C: Software Control through RS-232 port / Ethernet port
1. System Requirement
1) OS Information: MS WinXP/7
2) Baud rates: 9600
3) Software size: 3 MB
4) Minimum RAM requirement: 256 MB
Method D: Software Control through RS-232 port
1
Power ON/ Standby mode
5
I/O Routing Button
2
Control SW via RS-232
6
EDID Button
3
Control SW via Network
7
F/W Update & Default Reset Button
4
COM Port Selection
1
2
3
4
5
7
6

8
1. I/O Routing Button
1) I/O Mapping:
a) Click the button on the checkerboard to select Input & Output port
2) Recall Mapping:
a) Select the stored Mapping(1-8)
b) Click “Recall” button to recall previous mapping which are saved
3) Save Mapping:
a) Select Mapping(1-8)
b) Click “Save” button to save current mapping

9
2. EDID Button
1) Learn EDID from Default to Input
a) Select Default EDID(1-8 Default EDID)
b) Select designated Input
c) Click “Apply” button to learn from default EDID
2) Learn EDID from Display to Input
a) Select output
b) Select designated Input
c) Click “Apply” button to learn from display EDID
3) Load EDID File to Input
a) Click “Load File” button to select the EDID file
b) Select designated Input
c) Click “Apply” button to load EDID File
4) View EDID
a) Select Input or HDMI output
b) Click “View” button to read and analyze the EDID

10
3. System Button
1) Network
a) DHCP mode
=> Click DHCP and then click the “Read” button to get the IP address Info
b) Static mode
=> Click Static and then key in the “IP”, “MASK”, ”GATEWAY” info. After setting IP
Address, please click “Save” to save IP address Info
c) “Save” button
=> Save the key- in IP address
d) “Read” button:
=> Read the IP address from the device
e) “MAC” button
=> Read the device’s MAC address
*Note: The default IP address is 192.168.1.111
2) System
a) Factory Reset
b) Firmware Version
=> To get the F/W version information
3) Firmware Update
=> Firmware update Main Board

11
Method E: Web Interface Control
The default IP address: 192.168.1.111
Account: admin
Password: matrix
1
I/O Routing Button
2
EDID Button
3
Power ON/ Standby mode
4
Refresh I/O Status
1. I/O Routing Button
1) I/O:
a) Switch the input for each output
2) Save Mapping:
a) Select Mapping(1-8)
b) Click “Save” button to save current mapping
3) Recall Mapping:
a) Select the stored Mapping(1-8)
b) Click “Recall” button to recall previous saved mapping
1
2
3
4

12
2. EDID Button
1) Learn EDID from Default
a) Select Default EDID(1-8 Default EDID)
b) Select Input
c) Click “Send” button to learn default EDID
2) Learn EDID From Display
a) Select output
b) Select Input
c) Click “Send” button to learn display EDID
3. Power ON/ Standby mode
4. Refresh I/O Status

13
EDID LEARNING
The EDID learning function is to resolve audio and video playing issues at HDMI output port.
Because the HDMI source devices and displays may have various level of capability in playing audio and
video, the general principle is that the source device will output the lowest standards in audio format and
video resolutions to be commonly acceptable among all HDMI displays. In this case, a 720p stereo HDMI
signal output would be probably the safest choice. Nevertheless, the user can force the matrix to learn the
EDID of the lowest capable HDMI display among others to make sure all displays are capable of playing
the HDMI signals normally.
There are THREE methods to do EDID Learning as below,
1. IR Remote Control: Please refer to the Operation Approach\ Method B: IR Remote Control
2. Software Control: Please refer to the Operation Approach\ Method C: Software Control through
RS-232 port
3. Web Interface Control: Please refer to the Operation Approach\ Method D: Web Interface Control
There are eight embedded default EDID as below,
1. Ultra-HD(4K2K@60) - 24bit 3D video & 7.1ch audio
2. Ultra-HD(4K2K@60) - 24bit 3D video & 2ch audio
3. Ultra-HD(4K2K@30) - 24bit 3D video & 7.1ch audio
4. Ultra-HD(4K2K@30) - 24bit 3D video & 2ch audio
5. Full-HD(1080p@60) - 36bit 3D video & 7.1ch audio
6. Full-HD(1080p@60) - 24bit 2D video & 7.1ch audio
7. Full-HD(1080p@60) - 24bit 2D video & 2ch audio
8. HD(1080p@30)(1080i@60)(720p@60) - 24bit 2D video & 2ch audio

14
FAQ
QCan every TV work with the HDMI matrix?
A
Basically, the answer is YES. But if your TV can not support UltraHD, please refer the EDID
LEARNING section to learn EDID from your TV.
QWhat is EDID? Why do I need to learn EDID?
A
EDID contains the whole information of the display such as the resolution and audio setting which
this display can support. Therefore, based on the EDID information, media player will pick up the
most suitable resolution and audio setting to the display. In order to faithfully transmit the EDID
information from display to the media player, learning EDID from display to this device is
necessary.
QWhat should I do to learn EDID for the matrix?
A
Due to the limitation of HDMI, the source device can only output one format of video and audio. In
other words, the source device cannot output 720p and 1080p video at the same time, or output
stereo and surround sound at the same time. Therefore, you may need to manually setup each
HDMI input for desirable audio/video output format. The mechanism of EDID Learning is to pick up
the HDMI display with the lowest capability among the ones you would use for this input source.
For example, if user would like to play the Input-2 upon output-2, output-3 and output-4, and only
output-3 cannot support 1080p [support up to 720p only], please learn the EDID from the display
connected to the output-3 at the Input-2 port. Of course, if outpt-3 would get the HDMI signals from
every HDMI input, please learn EDID information from output3 to all four HDMI inputs. For more
information about EDID Learning, please refer to EDID LEARNING section.
QMy TV can support 1080p, but why there is no audio?
A
The factory default EDID of this device is 1080p & 2ch audio. However, there would be a problem
after you change to use 1080p & 7.1ch if the TV cannot support 7.1ch audio. Please use the
default EDID, 1080p & 2ch audio.
QWhen I set an audio amplifier (AV receiver) between TV and the matrix to extract 7.1ch
audio, but why there is still no audio?
A
Basically, the default EDID of the chosen input can support 7.1ch audio, but the problem is that the
EDID of the amplifier still cannot match the default setting. Therefore, the best method is to learn
EDID from the amplifier directly. Please refer to EDID LEARNING section and follow the steps to
learn the EDID. When learning EDID from the amplifier, user just needs to connect the matrix and
amplifier. Please don't connect HDMI cable between amplifier and TV when the EDID
learning is proceeding.
QWhen I play the same content upon multi-displays, why only the TV equipped with amplifier
can have 7.1ch audio, and the others don't have 7.1ch audio even no stereo?
A
Due to the limitation of HDMI, the source only can choose one video and one audio format to play,
which can be either 1080p and 7.1ch or 1080p and stereo audio. It means when the user sets the
matrix at 1080p and 7.1ch, the source will only play the content under this format. Therefore if the
TV cannot decode 7.1ch audio, there is definitely no audio.

15
WARRANTY
The SELLER warrants the MA-5422H 4x2 HDMI 2.0a Matrix free from defects in the material and
workmanship for 1 year from the date of purchase from the SELLER or an authorized dealer. Should this
product fail to be in good working order within 1 year warranty period, The SELLER, at its option, repair or
replace the unit, provided that the unit has not been subjected to accident, disaster, abuse or any
unauthorized modifications including static discharge and power surge. This warranty is offered by the
SELLER for its BUYER with direct transaction only. This warranty is void if the warranty seal on the metal
housing is broken.
Unit that fails under conditions other than those covered will be repaired at the current price of parts
and labor in effect at the time of repair. Such repairs are warranted for 90 days from the day of reshipment
to the BUYER. If the unit is delivered by mail, customers agree to insure the unit or assume the risk of loss
or damage in transit. Under no circumstances will a unit be accepted without a return authorization
number.
The warranty is in lieu of all other warranties expressed or implied, including without limitations, any
other implied warranty or fitness or merchantability for any particular purpose, all of which are expressly
disclaimed.
Proof of sale may be required in order to claim warranty. Customers outside Taiwan are responsible
for shipping charges to and from the SELLER. Cables and power adapters are limited to a 30 day
warranty and must be free from any markings, scratches, and neatly coiled.
The content of this manual has been carefully checked and is believed to be accurate. However, The
SELLER assumes no responsibility for any inaccuracies that may be contained in this manual. The
SELLER will NOT be liable for direct, indirect, incidental, special, or consequential damages resulting
from any defect or omission in this manual, even if advised of the possibility of such damages. Also, the
technical information contained herein regarding the MA-5422H features and specifications is
subject to change without further notice.