M70-4u-E Multi Service Video Management Platform Matrix Display Control Decoder
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Specifications
- Product: Video Matrix Platform
- Version: V1.0.0
- Publication Date: July 2025
Product Information
The Video Matrix Platform is a versatile device designed for
managing and distributing video signals efficiently. It provides
solutions for common device malfunctions, parameter settings, and
usage misconceptions encountered during operation. This manual
serves as a comprehensive guide to ensure safe and optimal use of
the product.
Safety Instructions
Before using the Video Matrix Platform, familiarize yourself
with the following safety instructions:
- DANGER: Indicates high potential hazards that
could result in death or serious injury. - WARNING: Indicates medium or low potential
hazards that could cause slight or moderate injury. - CAUTION: Indicates potential risks leading to
property damage, data loss, performance reductions, or
unpredictable results. - TIPS: Provides methods to solve problems or
save time. - NOTE: Offers additional information to
supplement the text.
Important Safeguards and Warnings
Ensure compliance with the following safeguards to prevent
hazards and maintain device functionality:
- Transportation Requirements: Transport within
allowed humidity and temperature ranges; avoid transporting the
device panel upside down. - Storage Requirements: Store within specified
humidity and temperature limits. - Installation Requirements:
- Device Class: Class A device may cause radio
interference in domestic environments; take necessary measures if
interference occurs. - Cable Management: Properly organize cables to
prevent hazards like short circuits and overheating; use cable zip
ties for bundling. - Overcurrent Protection: Install a 5A
overcurrent protection device in the external power circuit for
safety disconnecting during maintenance. - Power Connection: Ensure a readily accessible
power outlet for safe disconnection; use the safety disconnecting
switch at the device bottom. - Installation Location: Install by
professionals in restricted-access areas; maintain clearance for
heat dissipation and proper functioning. - Safety Measures: Avoid obstructions to vents,
high-temperature sources, water splashes, and direct sunlight;
ensure a fixed horizontal position for anti-vibration
components. - Earthing Connection: Connect Class I devices
to mains sockets with protective earthing connections; use the
dedicated earthing terminal on the device.
FAQ
Q: What should I do if the device
malfunctions?
A: If you encounter device malfunctions, refer
to the manual for troubleshooting steps. If issues persist, contact
customer support for further assistance.
Q: How do I perform parameter settings on the Video
Matrix Platform?
A: To adjust parameter settings, navigate to
the settings menu on the platform interface. Follow the on-screen
instructions or consult the manual for detailed guidance.
Q: Can the Video Matrix Platform be used with other
video devices?
A: Yes, the Video Matrix Platform is compatible
with various video devices. Ensure proper connections and
configurations for seamless integration.
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Video Matrix Platform
FAQ
V1.0.0
Foreword
This manual provides solutions and operational guidance for common device malfunctions, parameter setting inquiries, and usage misconceptions encountered in actual use. Read carefully before using the device, and keep the manual safe for future reference.
Safety Instructions
The following signal words might appear in the manual.
Signal Words
Meaning
DANGER
Indicates a high potential hazard which, if not avoided, will result in death or serious injury.
WARNING
Indicates a medium or low potential hazard which, if not avoided, could result in slight or moderate injury.
CAUTION
Indicates a potential risk which, if not avoided, could result in property damage, data loss, reductions in performance, or unpredictable results.
TIPS
Provides methods to help you solve a problem or save time.
NOTE
Provides additional information as a supplement to the text.
Revision History
Version Number Revised Content
V1.0.0
First release.
Publication Date July 2025
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Important Safeguards and Warnings
This section introduces content covering the proper handling of the device, hazard prevention, and prevention of property damage. Read carefully before using the device, and comply with the guidelines when using it.
Transportation Requirements
Transport the device within the allowed range of humidity and temperature. Do not transport the device panel upside down.
Storage Requirements
Store the device within the allowed range of humidity and temperature.
Installation Requirements
WARNING The device is a Class A device. In domestic environment, it might cause radio interference, in
which case the user might be required to take practical measures. After all the device cables are properly connected, use cable zip ties to bundle the wires to prevent
hazards such as short circuits, overheating, and electric shock caused by disorganized wires.
Install an overcurrent protection device rated at 5 A in the device’s external power circuit as a safety disconnecting device. Install it close to the device, to safely disconnect the device from the mains during maintenance.
Install the device near a readily accessible power outlet to allow safe power disconnection by unplugging.
A safety disconnecting switch is designed at the device bottom for safe power cutoff. Make sure that the switch remains easily operable during installation.
The device shall be installed by professionals and located in areas accessible only to such personnel.
Maintain sufficient clearance around the device for heat dissipation: at least 5 cm on sides and 1 cm on top.
Do not obstruct vents with items such as newspapers, tablecloths, or curtains. Do not place open flame sources (such as lit candles) on the device. Install the device away from water splashes. Do not place liquid-filled containers (such as vases)
on its surface. Keep the device away from high-temperature sources, and avoid direct sunlight or heat-emitting
device. Install the device at a fixed horizontal position to ensure proper function of internal anti-vibration
components. Connect Class I device to mains sockets with protective earthing connections. A dedicated protective earthing terminal is located at the lower-right corner of the device.
Permanently and reliably connect this terminal to the installation site’s earth ground. Strictly follow connection sequence by connecting other lines before the power cable to prevent
device damage. Disconnect the battery’s negative terminal before wiring operations.
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Use a power supply meeting SELV (Safety Extra-Low Voltage) requirements. Operate at rated voltages according to GB8898 (IEC60065) or GB4943.1 (IEC60950-1 compliant with Limited Power Source), as specified on the device nameplate.
Operational Requirements
Use the device within the allowed range of humidity and temperature. Use the device only within the rated input and output range. Operating temperature range: -10 °C to +50 °C. Do not disassemble the device without guidance. Do not hot-plug or unplug audio and video signal cables, RS-232 or RS-485 cables while the
device is powered on. This might cause interface damage.
Maintenance and Repair Requirements
WARNING The fuse is designed to be installed on the neutral line, and care should be taken during
maintenance and replacement. A blown fuse does not guarantee that the downstream circuit is powered off. Always unplug the power cord before removing the cover for maintenance to ensure complete disconnection from mains power. The device must only be used with batteries containing internal protection circuits. Always dispose of exhausted batteries according to instructions. Only batteries of the same model might be used for replacement. Using incorrect battery models might cause explosion or fire hazards.
The device casing is used for the protecting internal components of the device, and needs to be opened by loosening the bolts with a screwdriver. Before the device is powered on again, make sure that the casing is reinstalled at its original position.
Dust on the circuit board can cause a short circuit when it becomes damp, affecting the normal operation of the device and even damaging it. To ensure the device operates stably over the long term, regularly use a brush to clean the electrical circuit, plug-in, case, and other components.
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Table of Contents
Foreword………………………………………………………………………………………………………………………………………… I Important Safeguards and Warnings………………………………………………………………………………………………… I 1 Device ………………………………………………………………………………………………………………………………………… 1
Device Decoding Specifications……………………………………………………………………………………………………………………..1 Maximum Number of Users Supported by the Device ……………………………………………………………………………. 1 Maximum Number of Channels Supported by Webpage……………………………………………………………………….. 1 Does the Device Support Audio Collection?………………………………………………………………………………………………. 1 How to Distinguish between M70-4U and M70-4U-E? ……………………………………………………………………………. 1 How to Ground the Device and Screen ……………………………………………………………………………………………………….. 2 Unable to Power on after Plugging in ………………………………………………………………………………………………………….. 2 Device Buzzes When Powered on through the Power Button ………………………………………………………………. 2 Forgot the Password for Device Login …………………………………………………………………………………………………………. 2
No Display on Local Interface ……………………………………………………………………………………………………………………….3 Unable to Log in to the Device Webpage …………………………………………………………………………………………………. 3 No Recognition with the Board …………………………………………………………………………………………………………………….4 Device Time Display Error……………………………………………………………………………………………………………………………….7 Device Unable to Control PTZ ……………………………………………………………………………………………………………………….8 2 Video on Wall …………………………………………………………………………………………………………………………… 10 High Latency in Video on Wall……………………………………………………………………………………………………………………….10 No Video Output in Video Wall………………………………………………………………………………………………………………………10 Vertical Screen Misalignment at Splits………………………………………………………………………………………………………..12 Partial Green Screen on Video Wall………………………………………………………………………………………………………………13 Random Black Screen or Stuttering on Video Wall ………………………………………………………………………………….13 Flickering or Line Interference on Video Wall……………………………………………………………………………………………14 No Audio Output After Video on Wall………………………………………………………………………………………………………….15 Distorted Color or Brightness on Output Display ……………………………………………………………………………………16 Mosaic Artifacts or No Image in the Live Image ………………………………………………………………………………………17 3 Others……………………………………………………………………………………………………………………………………. 19 How Third-Party Devices Acquire our Device Streams …………………………………………………………………………..19 What Do the Identifiers in System Logs Mean? ………………………………………………………………………………………..19 Unstable Network Connection ………………………………………………………………………………………………………………………20 Alarm Signal Cannot be Disarmed ……………………………………………………………………………………………………………….21 Downloaded Video Files Cannot be Played ……………………………………………………………………………………………….21 Appendix 1 Security Recommendation ………………………………………………………………………………………….. 22
III
1 Device
Device Decoding Specifications
Three output ports of the HDMI enhanced decoding card correspond to one chip, which can decode 16-channel 1080p @ 30 and 64-channel D1 code streams. The M70-E model features a 6-channel HDMI decoding card, corresponding to 2 chips. The M60 model has versions with 8, 9, 12, 15, 16, and 18 channels, each corresponding to a
different number of chips. When opening the window across chips, all chips have the capability to calculate the current
window once.
Maximum Number of Users Supported by the Device
A maximum of 20 user groups and 64 users are supported.
Maximum Number of Channels Supported by Webpage
1024 channels.
Does the Device Support Audio Collection?
Only the HDMI port supports audio collection. The 4K collection card of M70-E does not support audio collection.
How to Distinguish between M70-4U and M70-4U-E?
Check the number of network ports on the control board in slot C of the device. 3 for the M70-4U model, 8 for the M70-4U-E model.
M70-4U control board
M70-4U-E control board
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How to Ground the Device and Screen
Problem Description
If the device is not properly grounded, or if the grounding impedance of the device is not equivalent to that of the screen, a voltage difference might exist between the device and the screen, which can cause the video interface and chip to be damaged due to current backflow. To prevent such damage, perform common grounding for both the screen and the device to eliminate voltage differences.
Solution
Locate the grounding point near the power supply on the rear of the device. Connect it to the screen stand with high-quality wires, and ground both to earth.
Unable to Power on after Plugging in
Possible Reasons
The power button on the front panel is not pressed. Loose connection of the power cable. Physical damage to the power cable.
Solution
Locate and press the power button on the front panel. If the device powers on, troubleshooting is complete. If not, proceed to Step 2. Plug the power cord again to ensure a tight fit. If the device powers on, troubleshooting is complete. If not, proceed to Step 3. Replace the same model power cord and restart the device. If the device powers on, troubleshooting is complete. If not, contact the manufacturer or service provider for technical support.
Device Buzzes When Powered on through the Power Button
Possible Reasons
The device supports dual power supply. If only one power cord is plugged in, the device will trigger an alarm.
Solution
Plug in the power cord that is not connected. Press the red button next to the power module socket to mute the buzzer alarm.
Forgot the Password for Device Login
Insert a pointed tool into the RESET pinhole on the main control board for 35 seconds to restart the device. The login password will be restored to the default admin.
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This operation will clear all configurations. Please be advised. Location of RESET pinhole on M70 main control board
Location of RESET pinhole on M60 main control board
No Display on Local Interface
Problem Description
After starting the device, ono local interface is displayed on the monitor connected to the device.
Possible Reasons
The device startup requires approximately 180 seconds, during which the screen is black. After waiting for a period, a startup progress bar appears.
Monitor abnormality prevents determining whether the device is functioning normally. The interface board of the mainboard has poor contact with the mainboard, resulting in the
output signal from the local operation interface not being transmitted to the interface board. Inconsistent program configurations before and after upgrade cause failure to start the program. The program has not been upgraded or the upgrade was unsuccessful.
Solution
After powering on, wait 180 seconds for the device to startup. If the local interface appears, troubleshooting is complete. Otherwise, proceed to the next step. Replace the monitor, and reconnect it to the VGA port on the mainboard’s interface board. If the local interface appears, troubleshooting is complete. Otherwise, proceed to the next step. Plug the interface board out and in the mainboard again, to ensure sufficient contact between the interface board and mainboard. If the local interface appears, troubleshooting is complete. Otherwise, proceed to the next step. Insert a pointed tool into the RESET pinhole on the main control board for 35 seconds to restart the device (the configurations will be cleared). If the local interface appears, troubleshooting is complete. Otherwise, proceed to the next step.
This operation will clear all configurations. Please be advised. Upgrade the device program again. If the local interface appears, troubleshooting is complete. Otherwise, contact relevant technical support.
Unable to Log in to the Device Webpage
Possible Reasons
The username or password is incorrect.
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The network settings are incorrect. Network connection error. ActiveX Control is blocked.
Solution
Log in to the device again. Make sure that the username and password are correct. If you can log in, troubleshooting is complete; otherwise, proceed to the next step. Log in to the device local interface and reconfigure the its network parameters, including network address, video data transmission protocol, and more. Make sure that the device parameters are correct. If you can log in, troubleshooting is complete; otherwise, proceed to the next step. Plug the network cable out and in again, to ensure the device network is smooth. If you can log in, troubleshooting is complete; otherwise, proceed to the next step. Switch to another browser or set the device webpage as a trusted site. Here uses Internet Explorer as an example. 1) Open the settings in Internet Explorer, and then click Internet Options. 2) Click the Security tab. 3) Click Trusted Sites, then click Sites.
Set trusted sites
4) Fill in the website, click Add. 5) Check whether the issue has been resolved.
If you can log in, troubleshooting is complete; otherwise, contact relevant technical support.
No Recognition with the Board
Problem Description
The screen continuously requests DHCP.
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Abnormal phenomenon
Status of some or all boards shows no response, or board information is not displayed.
Possible Reasons
The board model does not match the device. The board is not securely inserted. The board malfunctioned. The board is outdated and configurations need to be cleared. Incorrect jumper settings on the M70-4U-E device board. Incorrect network card parameter configuration. Some devices are not grounded. The grounding issue manifests as random board recognition
failures upon each restart.
Solution
Check whether the board label matches the device. If not, replace it with a matching board. If the problem is resolved, troubleshooting is complete. Otherwise, proceed to the next step. Plug the board out and in again, and then restart the device. If the problem is resolved, troubleshooting is complete. Otherwise, proceed to the next step. Relocate the board to another slot, and check whether the breathing light flashes. If not, the board has malfunctioned and should be replaced. If the problem is resolved, troubleshooting is complete. Otherwise, proceed to the next step. Insert a pointed tool into the RESET pinhole on the main control board for 35 seconds to restart the device (the configurations will be cleared). If the problem is resolved, troubleshooting is complete. Otherwise, proceed to the next step.
This operation will clear all configurations. Please be advised. The M70-4U-E board is connected to the main control through jumpers. Connect network port 2 on the main control board to any one of the 4 network ports on the left side of the control board. If the problem is resolved, troubleshooting is complete. Otherwise, proceed to the next step.
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Jumper connection
Log in to the device’s local interface, and then check whether the net mode (Fault Tolerance by default), network card IP address, subnet mask, default gateway, and more, are correct. If any of these are incorrect, modify them according to the actual situation. If the problem is resolved, troubleshooting is complete. Otherwise, proceed to the next step.
Network
Locate the grounding point near the power supply on the rear of the device. Connect it to the screen stand with high-quality wires, and ground both to earth. If the problem is resolved, troubleshooting is complete. Otherwise, contact the technical support.
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Device Time Display Error
Possible Reasons
Time setting error. Poor contact connection or low voltage in the Button battery.
Solution
Reset the device time. Local interface settings 1) Log into the device local interface. 2) Select Main Menu > System Settings > General. 3) Modify the current system date and time of the device. 4) Click Save.
General
Webpage settings 1) Log in to the device webpage. 2) Select Setup > System Config >General > Date. 3) Set the device system time, or click Sync PC to synchronize with the current computer
time. 4) Click OK.
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Web time setup
After one week, check whether the time is correct. If the time is still correct, the issue is resolved; otherwise, proceed with the following steps.
Plug the button battery out and in again, or replace it. If the button battery has been replaced for less than one year, we recommend removing
and then inserting the battery again, to ensure it is inserted correctly and in full contact with the device. If the button battery has been in use for more than one year, we recommend replacing it with a new one. Export and save configurations before replacement; otherwise, all configurations
will be lost. Use the same model battery for replacement. After one week, check whether the time is correct. If the time is still correct, the issue is resolved; otherwise, contact the technical support.
Device Unable to Control PTZ
Possible Reasons
Incorrect PTZ parameter configuration in the device. Incorrect PTZ wiring (such as Ethernet cable, RS-485 A/B cables). Improper PTZ installation.
Solution
Check whether the PTZ parameter settings are correct. 1) Log in to the device webpage. 2) Select Setup > System Config > PTZ Setup. 3) Confirm correct parameter configuration. Make sure that protocol, baud rate, address,
and parity settings match those of the camera and PTZ. 4) If the device can control PTZ, troubleshooting is complete; otherwise, proceed to the
next step.
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Reconnect all PTZ cables (including Ethernet and RS-485 A/B cables). If the device can control PTZ, troubleshooting is complete; otherwise, proceed to the next step. Reinstall the PTZ device according to its installation manual. If the device can control PTZ, troubleshooting is complete; otherwise, contact relevant technical support.
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2 Video on Wall
High Latency in Video on Wall
Log in to the device webpage. Click the Video Wall tab. In the Device Tree or Signal Grouping panel on the right, select Preview Stream when projecting signals to the wall. Preview stream uses not encoded data with low latency (100 ms).
No Video Output in Video Wall
Possible Reasons
Multi-GPU simultaneous output not configured when using computer as the signal source. Resolution mismatch between computer output and encoding card. Incorrect signal source type configured for input channel. Output channel is not configured. Screen incompatible with decoding channel output resolution. Signal transmission cable issues (such as length, quality, adapters). Poor contact between front panel and interface board, preventing signal transmission.
Solution
Configure computer signal source for multi-display mode. 1) Right-click desktop on the computer as the signal source, and then select Screen
Resolution. 2) Set Multiple displays to Extend these displays. 3) Click OK.
Set multiple displays
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4) Check whether the issue is resolved. If video output appears, troubleshooting is complete; otherwise, proceed to the next step.
Adjust the computer output resolution to detect video output. If video output appears, troubleshooting is complete; otherwise, proceed to the next step. Configure the device input channel. 1) Log in to the device webpage. 2) Select Setup > Signal Management > Local Signal > Input Channel Setup. 3) Select the appropriate signal source type, and then click Save.
Signal source type must match the acquisition source, and the optional types include VGA, DVI, and HDMI. VGA: Displays blue screen when no source is connected. DVI/HDMI: Displays green screen when no source is connected.
Input channel setup
4) If video output appears, troubleshooting is complete; otherwise, proceed to the next step.
Configure device output channels. 1) Log in to the device webpage. 2) Select Setup > Display Management > Display Setup > Display Setup. 3) Set parameters according to actual output channel requirements.
Display setup
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Table 2-1 Display setup parameter description
Parameter
Description
Slot
Select the slot for the output screen.
Channel
Select the channel of the output screen.
Resolution
Set the resolution of the output screen. You can select Custom to define a custom resolution.
Sets the output mode for the screen.
Hot Plug: Outputs video only when the device output port is
Output mode
connected to a display.
Forced Output: Outputs video regardless of whether the device
output port is connected to a display.
Set the audio output mode.
Sub-card Output: Decoded audio is output from the audio output
port of the sub card.
Audio Output Mode
Main Control Output: Decoded audio is output from the audio output port of the main control.
Sub-card & Main Control Output: Decoded audio is output
simultaneously from both the sub card and main control audio
output ports.
Video Output Mode Sets the video output mode. You can select from DVI and HDMI.
Chroma
Adjust the hue and saturation of the video.
Adjust the overall brightness of the video linearly. A larger value makes
Brightness
the video brighter, and vice versa. Setting this value too high can cause
the video to appear hazy.
Adjust the contrast of the video. A larger value increases the difference
between light and dark areas; a smaller value decreases it. Setting this
Contrast
value too high can cause dark areas to be overly dark and bright areas to
become overexposed. Setting it too low can cause the video to appear
hazy.
Adjust the intensity of the colors in the video. A larger value makes the
Saturation
colors richer (more intense), and vice versa. This adjustment does not
affect the overall brightness of the video.
Screen Color/Window Set the background color for the screen and windows on the output
Color
screen.
4) Click OK.
5) 5Check whether the issue is resolved.
If video appears, the troubleshooting is complete. Otherwise, proceed to the next steps.
In Setup > Display Management > Display Setup > Display Setup, and then set the
resolution.
If video appears, the troubleshooting is complete. Otherwise, proceed to the next steps.
Reduce the source resolution, or replace the cable with a shorter one. Do not use adapters, so
that you can minimize signal reduction.
If video appears, the troubleshooting is complete. Otherwise, proceed to the next steps.
Plug the front panel connector out and in again, to make sure that it is securely plugged in.
If video appears, the troubleshooting is complete. Otherwise, contact the technical support
for assistance.
Vertical Screen Misalignment at Splits
Problem Description
When multiple screens are used in a split way, the video at the screen split is not synchronized in real time.
Possible Reasons
Incorrect line spacing delay setting configured for the video wall.
Solution
Log in to the device webpage.
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Select Setup > Display Management > Video Wall Setup. In the Video Wall Setup, double-click the corresponding video wall, set the line spacing delay parameter to 0, and then Click Save.
This parameter does not require configuration for fine-pitch LED displays. Check whether the issue is resolved. If resolved, the troubleshooting is complete. Otherwise, contact relevant technical support.
Partial Green Screen on Video Wall
Log in to the device webpage. Select Setup > Display Management > Display Setup > Global Setup. Select Abnormal Stream Filtering, and then click Save.
Selecting this option halves decoding performance and might cause lag. Global setup
Check whether the issue is resolved. If resolved, the troubleshooting is complete. Otherwise, contact relevant technical support.
Random Black Screen or Stuttering on Video Wall
Possible Reasons
Insufficient decoding capability of the decoding channel. Excessive concurrent wall display streams, and inadequate main controller stream-pulling
performance. Insufficient network bandwidth. Abnormal signal from the front-end source.
Solution
If the webpage prompts Exceeds Decoding Capability, select lower-resolution streams for wall display. Check whether the display returns to normal. If yes, the troubleshooting is complete. Otherwise, proceed to the following steps. Set the streaming mode to NetCard Pull Stream. 1) Log in to the device webpage. 2) Select Setup > Display Management > Display Setup > Global Setup. 3) Select all netcard pull stream and click Save.
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Check whether the display returns to normal. If yes, the troubleshooting is complete. Otherwise, proceed to the following steps.
Global setup
Check network bandwidth. 1) Select Information > System Status. 2) Verify that all network interfaces in the device system status operate at Gigabit speed. If
not, upgrade the network to Gigabit Ethernet. 3) Check whether the display returns to normal. If yes, the troubleshooting is complete.
Otherwise, proceed to the following steps. Log in to the front-end device webpage, and then check whether live view function is normal. If the live video on the front-end device is abnormal, this indicates a front-end signal
issue. Contact technical support for the front-end device. If the live video on the front-end device is normal, contact technical support for the video
matrix device.
Flickering or Line Interference on Video Wall
Possible Reasons
Lack of common grounding between device and display power supplies. Substandard video cable quality or excessive cable length.
Solution
Locate the grounding point near the power supply on the rear of the device. Connect it to the screen stand with high-quality wires, and ground both to earth. Check whether the display returns to normal. If yes, the troubleshooting is complete. Otherwise, proceed to the following steps. Replace with a higher-quality or shorter video cable. Avoid using signal converters to reduce signal reduction. Check whether the display returns to normal. If yes, the troubleshooting is complete. Otherwise, contact the technical support.
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No Audio Output After Video on Wall
Possible Reasons
Audio is disabled in encoding settings. Incorrect audio output mode is selected in output settings. The audio function is disabled on the video wall page. Source video contains no audio track. Display device lacks speakers. Damaged audio cable.
Solution
Enable audio in encoding settings. 1) Log in to the device webpage. 2) Select Setup > Signal Management > Local Signal > Encoding Setup. 3) In the A/V Enable row, select Audio, and then click Save. 4) Check whether the issue is resolved.
If resolved, the troubleshooting is complete. Otherwise, proceed to the following steps. Encoding setup
Configure the correct audio output mode. 1) Log in to the device webpage. 2) Select Setup > Display Management > Display Setup. 3) Select the correct audio output mode, click OK.
Sub Card Output: Decoded audio signals are output from the sub-card’s audio output port.
Main Control Output: Decoded audio signals are output from the main control’s audio output port.
Sub Card & Main Control Output: Decoded audio signals are simultaneously output from both the sub card’s and main control’s audio output ports. Display setup
4) Check whether the issue is resolved. If audio is present, the troubleshooting is complete. Otherwise, proceed to the following steps.
Enable the audio function of the video wall. 1) Log in to the device webpage. 2) Click the Video Wall tab.
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3) At the upper-right corner of the preview page, click Video wall
to enable audio.
4) Check whether the issue is resolved. If audio is present, the troubleshooting is complete. Otherwise, proceed to the following steps.
Upload other videos with audio to the wall. If audio is present, the troubleshooting is complete. Otherwise, proceed to the following steps. Confirm whether the display has built-in speakers. If not, connect external speakers. If audio is present, the troubleshooting is complete. Otherwise, proceed to the following steps. Replace the audio cable between the device and the screen. If audio is present, the troubleshooting is complete. Otherwise, contact the technical support.
Distorted Color or Brightness on Output Display
Possible Reasons
Device and screen have impedance mismatch or inconsistent grounding. Excessive video transmission distance or significant signal reduction in video cables. Incorrect device settings for color, brightness, and more.
Solution
Check whether the grounding impedance of the device and screen is equivalent. If not, replace with equivalent impedance to ensure no voltage difference between them. If the display returns to normal. If yes, the troubleshooting is complete. Otherwise, proceed to the following steps. Use shorter video cables. Avoid adapters to minimize signal reduction. If the display returns to normal. If yes, the troubleshooting is complete. Otherwise, proceed to the following steps. Reconfigure device color and brightness parameters. 1) Log in to the device webpage. 2) Select Setup > Display Management > Display Setup > Display Setup. 3) Configure chroma, brightness, contrast, and saturation for the output screen.
If the display returns to normal. If yes, the troubleshooting is complete. Otherwise, contact the technical support.
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Display parameter setup
Mosaic Artifacts or No Image in the Live Image
Problem Description
In the live view window of the device webpage, the real-time display shows mosaic artifacts or fails to display the live video.
Possible Reasons
Unstable network connection. The logged-in account has no permissions of the live view page. Privacy masking is enabled on the front-end device. Poor source image quality or resource limitations for stream pulling on front-end devices.
Resource limitation for stream pulling: The maximum number of concurrent stream connections supported by the front-end device has been reached.
Solution
Plug network cables out and in again, to ensure stable network conditions for the device. If the display returns to normal. If yes, the troubleshooting is complete. Otherwise, proceed to the following steps. Switch accounts or grant preview permissions to the current account. 1) Log in to the device webpage with the administrator account. 2) Select Setup > System Config > User Management > User Management > User.
3) Select the target user and click 4) Select Live view in the Authority area.
If the Live view cannot be selected, the user’s group lacks this authority. Change the user’s group affiliation.
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Change authority
5) Check whether the issue is resolved. If the display returns to normal. If yes, the troubleshooting is complete. Otherwise, proceed to the following steps.
Check whether privacy masking is enabled on the source device. If enabled, disable privacy masking on the front-end device. If the display returns to normal. If yes, the troubleshooting is complete. Otherwise, proceed to the following steps. Switch between signal sources from different devices. Check whether the display returns to normal. If yes, the troubleshooting is complete. Otherwise, contact the technical support.
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3 Others
How Third-Party Devices Acquire our Device Streams
Log in to the device webpage. Select Setup > Network > Port. Select Enable RTSP. The RTSP stream access format will be displayed.
Connection setup
Click OK. Check whether the issue is resolved. If resolved, the troubleshooting is complete. Otherwise, contact relevant technical support.
What Do the Identifiers in System Logs Mean?
Log in to the device webpage. Select Info > System Log. Select log type, set start time and end time, and then click Search.
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Search results
Common restart identifiers are as follows. 0x00: Normal restart. 0x01: Abnormal power failure (such as manual power cable removal. If unintended,
typically indicates power supply or module failure). 0x02: Log exception. 0x05: Sub card exception. 0x6 (a, c, f, or 6): Software crash (requires stack trace from the faulty device). 0x0a: Watchdog restart. 0x0c: Power off, and then restart.
Unstable Network Connection
Problem Description
The device frequently disconnects, or stream-pulling during live view is unstable with mosaic artifacts.
Possible Reasons
Unstable network conditions. IP address conflicts. Switch failure or configuration error in local area network (LAN).
Solution
Plug network cables out and in again for stable network. If the network recovers, the troubleshooting is complete. Otherwise, proceed to the next step. Log in to the device local interface, and configure its IP address again. If the network recovers, the troubleshooting is complete. Otherwise, proceed to the next step. Check whether the configuration of the switch is correct. If there are any errors, correct them promptly. If the network recovers, the troubleshooting is complete. Otherwise, contact the technical support.
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Alarm Signal Cannot be Disarmed
Problem Description
The alarm signal lasts even after the triggering event has been resolved.
Possible Reasons
Software version issue.
Solution
Log in to the device webpage. Select Setup > System Config > System Upgrade. Click Import, and then select the correct upgrade file.
Upgrade system
Click Upgrade. A progress bar will be displayed during the upgrade. The device will automatically restart upon successful upgrade.
Downloaded Video Files Cannot be Played
Problem Description
Select Info > Device Info > Decoding Info, and then click channel, but the video cannot be played.
Possible Reasons
to download the video of the selected
The downloaded .dav file format requires a compatible player, which might not be installed on the local computer.
Solution
Download our Player or VLC Media Player to play .dav files. Convert the downloaded video to the .avi format before playing.
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Appendix 1 Security Recommendation
1. Account Management 1.1 Use complex passwords Please refer to the following suggestions to set passwords: The length should not be less than 8 characters; Include at least two types of characters: upper and lower case letters, numbers and symbols; Do not contain the account name or the account name in reverse order; Do not use continuous characters, such as 123, abc, etc.; Do not use repeating characters, such as 111, aaa, etc. 1.2 Change passwords periodically It is recommended to periodically change the device password to reduce the risk of being guessed or cracked. 1.3 Allocate accounts and permissions appropriately Appropriately add users based on service and management requirements and assign minimum permission sets to users. 1.4 Enable account lockout function The account lockout function is enabled by default. You are advised to keep it enabled to protect account security. After multiple failed password attempts, the corresponding account and source IP address will be locked. 1.5 Set and update password reset information in a timely manner Our device supports password reset function. To reduce the risk of this function being used by threat actors, if there is any change in the information, please modify it in time. When setting security questions, it is recommended not to use easily guessed answers. 2. Service Configuration 2.1. Enable HTTPS It is recommended that you enable HTTPS to access Web services through secure channels. 2.2 Encrypted transmission of audio and video If your audio and video data contents are very important or sensitive, we recommend you to use encrypted transmission function in order to reduce the risk of your audio and video data being eavesdropped during transmission. 2.3 Turn off non-essential services and use safe mode If not needed, it is recommended to turn off some services such as SSH, SNMP, SMTP, UPnP, AP hotspot etc., to reduce the attack surfaces. If necessary, it is highly recommended to choose safe modes, including but not limited to the following services: SNMP: Choose SNMP v3, and set up strong encryption and authentication passwords. SMTP: Choose TLS to access mailbox server. FTP: Choose SFTP, and set up complex passwords. AP hotspot: Choose WPA2-PSK encryption mode, and set up complex passwords. 2.4 Change HTTP and other default service ports It is recommended that you change the default port of HTTP and other services to any port between 1024 and 65535 to reduce the risk of being guessed by threat actors. 3. Network Configuration 3.1 Enable Allow list It is recommended that you turn on the allow list function, and only allow IP in the allow list to access the device. Therefore, please be sure to add your computer IP address and supporting device IP address to the allow list. 3.2 MAC address binding It is recommended that you bind the IP address of the gateway to the MAC address on the device to reduce the risk of ARP spoofing. 3.3. Build a secure network environment
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In order to better ensure the security of devices and reduce potential cyber risks, the following are recommended: Disable the port mapping function of the router to avoid direct access to the intranet devices
from external network. According to the actual network needs, partition the network: if there is no communication
demand between the two subnets, it is recommended to use VLAN, gateway and other methods to partition the network to achieve network isolation. stablish 802.1x access authentication system to reduce the risk of illegal terminal access to the private network. 4. Security Auditing 4.1 Check online users It is recommended to check online users regularly to identify illegal users. 4.2 Check device log By viewing logs, you can learn about the IP addresses that attempt to log in to the device and key operations of the logged users. 4.3 Configure network log Due to the limited storage capacity of devices, the stored log is limited. If you need to save the log for a long time, it is recommended to enable the network log function to ensure that the critical logs are synchronized to the network log server for tracing. 5. Software Security 5.1 Update firmware in time According to the industry standard operating specifications, the firmware of devices needs to be updated to the latest version in time in order to ensure that the device has the latest functions and security. If the device is connected to the public network, it is recommended to enable the online upgrade automatic detection function, so as to obtain the firmware update information released by the manufacturer in a timely manner. 5.2 Update client software in time It is recommended to download and use the latest client software. 6. Physical Protection It is recommended that you carry out physical protection for devices (especially storage devices), such as placing the device in a dedicated machine room and cabinet, and having access control and key management in place to prevent unauthorized personnel from damaging hardware and other peripheral equipment (e.g. USB flash disk, serial port).
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Documents / Resources
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Video Matrix M70-4u-E Multi Service Video Management Platform Matrix Display Control Decoder [pdf] User Guide M70-4u-E Multi Service Video Management Platform Matrix Display Control Decoder, M70-4u-E, Multi Service Video Management Platform Matrix Display Control Decoder, Management Platform Matrix Display Control Decoder, Matrix Display Control Decoder, Control Decoder, Decoder |