SIIG AV-GM07C3-S1 User manual

4x8 HDMI Matrix Switcher
with Full 3D Support
P/N: AV-GM07C3-S1

Safety and Notice
The AV-GM07C3-S1 4x8 HDMI Matrix Switcher with Full 3D Support has been tested for
conformance to safety regulations and requirements, and has been certified for international
use. However, like all electronic equipments, the AV-GM07C3-S1 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..............................................................................................................3
PANEL DESCRIPTIONS.....................................................................................................4
DIP SWITCH.......................................................................................................................6
HARDWARE INSTALLATION.............................................................................................8
CONNECTION DIAGRAM ..................................................................................................8
OPERATION AND IR CONTROL........................................................................................9
EDID LEARNING..............................................................................................................14
FAQ ..................................................................................................................................16
WARRANTY .....................................................................................................................17

1
INTRODUCTION
The AV-GM07C3-S1 4x8 HDMI Matrix Switcher with Full 3D Support 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 any eight 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
●Support HDMI Deep Color & full 3D
●HDCP compliant
●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 7.1 channel digital audio
●Supports default HDMI EDID and learns the EDID of displays
●The matrix master can switch every output channels to any HDMI inputs by push-in button, IR
remote controller or RS-232 control
●Easy installation with rack-mounting and wall-mounting designs for master and receiver
respectively
●Fast response time –2~5 seconds for channel switch
PACKAGE CONTENTS
●1x AV-GM07C3-S1
●1x IR receiver
●1x Rack-mounting ear set
●1x UL AC C13 power cord

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●1x IR remote control
●1x Installation CD
●1x User Manual

3
SPECIFICATIONS
Model Name
AV-GM07C3-S1
Technical
Role of usage
True 4x8 matrix
HDMI compliance
HDMI Deep Color & full 3D
HDCP compliance
Yes
Video bandwidth
Single-link 225MHz [6.75Gbps]
Video support
480i / 480p / 720p / 1080i / 1080p60 12-bit color
Audio support
Surround sound (up to 7.1ch) or stereo digital audio
ESD protection
[1] Human body model —±19kV [air-gap discharge] & ±12kV [contact
discharge]
[2] Core chipset —±8kV
PCB stack-up
4-layer board [impedance control —differential 100Ω; single 50Ω]
Input
4x HDMI + 1x RS-232
Output
8x HDMI
HDMI Input selection
Push button / IR remote / RS-232
IR remote control
Electro-optical characteristics: = 25° / Carrier frequency: 36~40kHz
HDMI connector
Type A [19-pin female]
RS-232 connector
DE-9 [9-pin D-sub female]
DIP switch
[SW1~SW8] 2-pin for EDID learning, audio/video settings
[SW Main] 4-pin operation mode & firmware update
Mechanical
Housing
Metal enclosure
Dimension
s
(L x W x H)
Model
440 x 310 x 43mm [1'5" x 1'0" x 1.7"]
Package
528 x 398 x 130mm [1'9" x 1'4" x 5.1"]
Carton
548 x 422 x 282mm [1'10" x 1'5" x 11.1"]
Weight
Model
4051g [8.9 lbs]
Package
4900g [10.8 lbs]
Fixedness
1U rack-mount with ears and wall hanging holes
Power supply
AC Power 100-240V
Power consumption
60 Watts [max]
Operation
temperature
0~40°C [32~104°F]

4
Storage temperature
-20~60°C [-4~140°F]
Relative humidity
20~90% RH [no condensation]
PANEL DESCRIPTIONS
Front Panel
1.Power: Power control
2.Seven Segment LED Indicators: Control display
3.Front panel push buttons: Used to input source and display channel number
4.IR SENSOR: IR sensor for receiving the IR commands from the IR remote
5.Ext. IR: IR receiver
Rear Panel
6.RS-232: RS-232 control port
7.SW 1-4: DIP switch (for more detail please see DIP Switch section)
* USB or RS-232 control must be connected either one at a time. Connecting both types of
cables may cause command confusion.

5
8.INPUT 1-4: HDMI inputs
9.OUPUT 1-8: HDMI outputs for each output channel
10.AC Power: 100-240V
11.SW MAIN: DIP switches (for more detail please see DIP Switch section)
12.USB: For channel control via USB control portr

6
DIP SWITCH
SW1-SW8 for EDID/Audio
DIP Switch Position
Video
Audio
Description
Pin#1
Pin#2
OFF [ ]
OFF [ ]
Up to 1080p
Surround
Default Mode 1 1–
EDID up to 1080p video & surround sound
audio output up to 7.1ch (DTS-HD Master &
Dolby TrueHD)
OFF [ ]
ON [ ]
Up to 1080p
Stereo 2
Default Mode 2 –
EDID up to 1080p video and stereo audio for
basic compatibility among HDTVs
ON [ ]
OFF [ ]
Up to
720p/1080i
Stereo
Safe Mode 3–
EDID up to 720p/1080i video and stereo audio
for basic compatibility among HDTVs
ON [ ]
ON [ ]
Bypass 4
Bypass 4
EDID Learning Mode 5–
for learning EDID from the display while
playing any received HDMI audio format
Note
1Factory default setting of [SW1]-[SW8] is pin-1 at OFF []& pin-2 at OFF []for 1080p video
and surround sound audio.
2If the HDTV shows video but without audio, please try to set audio mode to stereo.
3If you encounter any unsolved audio/video output problem during system installation, please
turn any [SW1]-[SW8] to pin-1 at ON []& pin-2 at OFF []for safe mode to select the system
EDID up to 720p(1080i) video and stereo audio for system check. However, the safe mode
cannot be initiated if your HDMI source is set to enforce 1080p output. In this case, please
reconfigure your HDMI source to all resolution output for troubleshooting.
4Bypass means the matrix will maintain playing the original format of HDMI signals in video and
perhaps audio. By setting at this mode, the users may encounter compatibility issue among
different kinds of HDMI sources and displays. If you cannot get the audio and/or video output
normally at the system installation, please change the DIP switchsetting to defaultmode or even
safe mode to verify the functionality of the device.
5To learn the EDID of HDMI display for respective HDMI source devices, please see the [EDID
Learning] section in the next page for more information.

7
SW MAIN for firmware update (for technical support only)
DIP Switch Position
Pin#1
Pin#2
Pin#3
Pin#4
Normal Operation Mode [via RS-232 port] 6
OFF [ ]
OFF [ ]
OFF [ ]
OFF [ ]
Normal Operation Mode [via USB port] 7
OFF [ ]
OFF [ ]
OFF [ ]
ON [ ]
Firmware Update Mode 8
Block A [main]
ON [ ]
OFF [ ]
OFF [ ]
OFF [ ]
Block B [remote]
ON [ ]
OFF [ ]
ON [ ]
OFF [ ]
Block C [HDMI]
ON [ ]
ON [ ]
OFF [ ]
OFF [ ]
Note
6Factory default for SW Main is pin#1-OFF [], pin#2-OFF [], pin#3-OFF [], & pin#4-OFF
[]. PLEASE MAINTAIN THIS SETTING AT ANYTIME FOR REGULAR USE VIA RS-232
CONTROL!
7Factory default for SW Main is pin#1-OFF [], pin#2-OFF [], pin#3-OFF [], & pin#4-ON [].
PLEASE MAINTAIN THIS SETTING AT ANYTIME FOR REGULAR USE VIA USB CONTROL!
8Sequence for firmware update
WARNING!
[Firmware update only can be done via RS-232 port and connection to PC set at COM1)
1. Power off the AV-GM07C3-S1. Execute the firmware update program on your PC via COM1
port connection to the RS-232 port of the AV-GM07C3-S1.
2. Set the pin#1 of [SW Main] at ON []for firmware update mode.
3. Set pin#2 and pin#3 at respective positions to assign which Block to be updated.
4. Power on the AV-GM07C3-S1. The firmware update program should begin this update
sequence automatically. If not, please check the RS-232 connection status between PC and
AV-GM07C3-S1.
5. After the OK message shows up to indicate the firmware update sequence for designated
Block is complete, please turn off the AV-GM07C3-S1.
6. Repeat step 3 ~ step 6 if you want to update the firmware of the remaining Blocks.
7. Set the [SW Main] switch position to Normal Operation Mode.
8. Power on the AV-GM07C3-S1.

8
HARDWARE INSTALLATION
AV-GM07C3-S1
1. Connect all sources to HDMI Inputs on the 4x8 HDMI Matrix
2. Connect all outputs to HDMI devices
3. Connect the +5V 6A DC power supply to the 4x8 HDMI Matrix
4. Power on the 4x8 HDMI Matrix AV-GM07C3-S1.
CONNECTION DIAGRAM

9
OPERATION AND IR CONTROL
Source Side
Method A: Push Button
1. Use the “＋”or “－”channel button on output port to select which port to be changed.
“＋”: change selected output port in ascending order
“－”: change selected output port in descending order
2. Push the “＋”or “－”channel button on Input channel to select the HDMI input source you
want to display on this selected output port in step 1 in sequential order. Once you reach the
desired input channel you want to display on this selected output port, leave it and the setting
will be effective in a few seconds.
Method B: IR Remote Control
Firstly please push one of the INPUT buttons to choose which HDMI input source you are going
to setup. After that, you can have multiple outputs playing the same content from the selected
INPUT #1 - #4 by pushing the corresponding OUTPUT buttons. The setting will be effective in a
couple of seconds.
INPUT & OUTPUT MAPPING
INPUT 1
HDMI input port #1
INPUT 2
HDMI input port #2
INPUT 3
HDMI input port #3
INPUT 4
HDMI input port #4
OUTPUT 1
HDMI output port #1
OUTPUT 2
HDMI output port #2
OUTPUT 3
HDMI output port #3
OUTPUT 4
HDMI output port #4
OUTPUT 5
HDMI output port #5
OUTPUT 6
HDMI output port #6
OUTPUT 7
HDMI output port #7
OUTPUT 8
HDMI output port #8

10
Method C: Software Control through RS-232 port
Software Control Menu
1. Setting button:
Click Get button to read back device ID.
Click Set button to write device ID.
Click Rename button to open the String Table.
In the String Table, assign the captions for each input and output port for easy recognition.
For example
Rename the Input1 to “Blu-ray player”, Input2 to “Sat. receiver,” input3 to “Game console,”
input4 to “AV receiver,… etc., and rename output1 to “Conf. RM1,” output2 to “Conf. RM2,”
output3 to “Lobby,” output4 to “Main projector,” … etc.
Channel Control
HDMI Input Source
Selection Mapping
Area
HDMI Output
Port Selection
Mapping Area
Status Indicator

11
Click Save String Table to save the caption setting (turn effective after program restart).
Click Set Default to pop up the confirmation message below to erase the captions and reset the
string table back to default setting (turn effective after program restart).
2. Scan button:
Serial Port Scan
Click Scan button, the machine will scan the all COM
port and show them.
Select the RS232 serial port connected to the Matrix
switch.
And set device ID 255 is for all device.
Only the same device id or 255 can get the command
you sent.
Click OK. Get the new status from the Matrix switch
(the port you select.)
3. Linkage button:
Click Linkage button to read back all status.
4. Open/Close button:

12
Click this button to close or open COM port.
5. Mapping button:
Select All Output
Select “set all output”, and then select the source on main menu.
You can quickly set all output to the same source.
Unselect All Output
Release output selection.
Select Input1~4-Output
Select Input Source. Then select the output port icon.
For example
Select input source 1. Then select output ports one and two.
The video and audio will be sent to ports one and two.
6. Fast Select button:
Click Fast select button. Quick setting.
Input one > Output Port one
Input two > Output Port two
…..
Click Fast select pull down menu.
Select Input Num-Output Num
Input source #1 > Output port #1
Input source #2 > Output port #2 …..
Select Input* - All Output
Send the same source to all output.
7. Output Port:
Pull down menu and select which source to be sent to this output port.
One by one setting
On main menu screen
First select input source. Then select the output ports which you
want to send the video and audio from this source. When you
select the input source, the source will change to gray. When you

13
select the output port one by one, the selected output port will
change to gray.
The linking line will change to yellow.
Group setting
First select output ports one by one. Then select the input source. The selected output ports
change the setting at the same time.
By using Terminal:
Baud rate: 9600
Data length: 8bit
Parity check: No
Stop bit: 1
Command Set:
COMMAND
ACTION
COMMAND
ACTION
ST
System Status
VR
Firmware Version
A1
Output A selects Input 1
E1
Output E selects Input 1
A2
Output A selects Input 2
E2
Output E selects Input 2
A3
Output A selects Input 3
E3
Output E selects Input 3
A4
Output A selects Input 4
E4
Output E selects Input 4
B1
Output B selects Input 1
F1
Output F selects Input 1
B2
Output B selects Input 2
F2
Output F selects Input 2
B3
Output B selects Input 3
F3
Output F selects Input 3
B4
Output B selects Input 4
F4
Output F selects Input 4
C1
Output C selects Input 1
G1
Output G selects Input 1
C2
Output C selects Input 2
G2
Output G selects Input 2
C3
Output C selects Input 3
G3
Output G selects Input 3
C4
Output C selects Input 4
G4
Output G selects Input 4
D1
Output D selects Input 1
H1
Output H selects Input 1
D2
Output D selects Input 2
H2
Output H selects Input 2
D3
Output D selects Input 3
H3
Output H selects Input 3
D4
Output D selects Input 4
H4
Output H selects Input 4

14
EDID LEARNING
The EDID learning function is only necessary whenever you encounter any display on the HDMI
output port that cannot play audio and video properly. 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 to play the
HDMI signals normally by performing the procedures stated below.
Method 1: Manually connect HDMI displays to HDMI input ports
1. Power up the matrix master unit. Connect the HDMI display that its EDID needs to be learned to
any of the HDMI INPUT1 –INPUT4 port where your source device has trouble to show the
picture normally.
2. To learn the display’s EDID for source device connected to respective HDMI INPUT1 –INPUT4
port, pull both pins of respective DIP switch SW1 –SW4up-and-down to stay at ON [ ] - ON [ ]
and wait for about 5 seconds to complete the EDID learning process. You DON’T NEED to pull up
the DIP switch again unless you want to learn another display’s EDID by pulling both DIP switch
pin-1 & pin-2 of SW1 –SW4up-and-down one more time.
3. Repeat step1 & step2 if you want to learn the EDID of this HDMI display on any other HDMI
input ports that have same trouble playing the audio/video properly.
Method 2: Use the front panel of the master unit
Button
Function
Output Port
EDID will be read from display via the connected receiver unit from the
respective output port
Input Channel
The EDID will be sent to the input source connected to respective HDMI input
port
Note
SW1-SW4 Pin#1 and Pin#2 must be set “ON” & “ON” for EDID Learning Mode
DIP Switch Position
Video
Audio
Description
Pin 1
Pin 2
ON []
ON []
Bypass
Bypass
EDID Learning –
for learning EDID from the receiver

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One by One learning
1. Select the desired Output Port and Input Channel that you want the EDID of the display
connected to this specified output port can be learned for the specified input channel.
2. Press the “+” button of the Output Port and “−” button of the Input Channel” at the same time
for 2 seconds.
3. Release these two buttons. The EDID will be read from the receiver unit connected to the display
and sent the Output Port then written to the chosen Input Channel.
4. If the operation is successful, the Input Channel will show “O” (OK). If the operation is not
successful, it will show “F” (failure).
One to All learning
1. Press the “” button of the Output Port and the “” button of the Input Channel” at the same
time for 2 seconds.
2. Release these two buttons. . The EDID will be read from the receiver unit connected to the
display and sent the Output Port then written to all four Input Channels.
3. If the operation is successful, the Input Channels will show “O” (OK). If the operation is not
successful, it will show “F” (failure).

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FAQ
QCan every TV work with the HDMI matrix?
ABasically, the answer is YES. But if your TV can not support 1080p, please refer the EDID
LEARNING section to learn EDID from your TV.
QWhat is EDID? Why do I need to learn EDID?
AEDID 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?
ADue 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 the DIP switch for 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-3, output-5 and output-8, and only output-5 cannot support 1080p
[support up to 720p only], please learn the EDID from the display connected to the output-5
at the Input-2 port. Of course, if output-5 could get the HDMI signals from every HDMI input,
please learn EDID information from output-5 to all eight 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?
AThe default setting of this device is 1080p & 7.1ch audio, so there would be a problem if the
TV cannot support 7.1ch audio. Please change the DIP switch of the chosen input from
Default Mode to Safe Mode.
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?
ABasically, the default DIP switch setting 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 audio?
ADue 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.

17
WARRANTY
The SELLER warrants the AV-GM07C3-S1 4x8 HDMI Matrix Switcher with Full 3D Support free
from defects in the material and workmanship for 3 years from the date of purchase from the
SELLER or an authorized dealer. Should this product fail to be in good working order within 3 years
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 AV-GM07C3-S1 features
and specifications is subject to change without further notice.
April, 2018
Support
For more info or tech support
http://www.siig.com/support