Why Novastar Vx4S ?And how to use it?

what is an LED video processor?

In short, the main function of an LED video processor is to convert images from external sources (such as computers, HD broadcast boxes, Blu-ray DVDs, etc.) into an acceptable signal for LED displays.

LED video processors are designed specifically for LED displays and can effectively improve image quality.

However, the NovaStar VX4S video processor is a top-selling LED video processor on the market.

Part One What is NovaStar VX4S?

1.What is NovaStar Vx4S?




  • User Friendly LED Display Controller
  • Powerful Front End Processor
  • Up to 1920 x 1200 p @60Hz Input Resolution
  • Multiple Video Signal Format Support
  • New Generation Point-By-Point Correction Technology
  • Cascade Multiple Units Together Via USB
  • Rack Mountable Aluminum Enclosure (screws not included)
                                                                                     Overall Specifications
Electrical SpecificationsPower connector100-240V~,50/60Hz.1.5A
Power consumption25w
Operating EnvironmentTemperature-20°℃~+60°C
Humidity20%RH to 90%RH,non-condensing storage
Storage Humidity10% RH to 95%RH, non-condensing
Physical SpecificationsDimensions482.6 mm × 250.0 mm ×50.0 met
Net weight2.55 kg
Gross weight5.6 knocking
acking information carryingCarrying case540 mm× 140 mm x 370 mm
Accessories1x Power cord
1x USB cable
1x DVI cable
1x HDMI cable
1x User Manual
Packing box555 mm × 405 mm x 180 mm
Noise Level (typical at 25C/77°F)38 dB(A)

2. The benefits of using Novastar Vx4S

(1)Easy to operate

The operation of the NovaStar VX4S is very simple and can be easily learned by the user.

The instructions are concise and clear, guaranteed to be readable by anyone!

Users will not have a bad experience during use of this product.

(2)Strong features

The power of the NovaStar VX4S is the most gratifying aspect.

The design of the function is on the practical side, to ensure the restoration of true color so that the whole picture to professional-level quality.

The latest point-by-point comparison technology is used to achieve fast and efficient calibration.

Intelligent configuration allows screen commissioning to be completed in minutes, significantly reducing stage preparation time.


(3)After-sales service guarantee

NovaStar’s control of product quality has always been strict.

The low failure rate and powerful functions of the product, innovative technology have made Novastar well-known and every user is satisfied with it.

On top of that, We ledcontrolcard promises 2-3 years of after-sales service for every consumer.

If your product breaks down, we have a variety of solutions here for you to choose from, just to get your favorites.

Part Two How to get a quick start with NovaStar VX4S

Firsrt: Input Settings

Method I: Preset Resolution

Selection is made in the preset resolution of the controller. You can select the second method and customize the resolution if there is no preset resolution.


Method II: Custom Resolution.

Set Horizontal Res, Vertical Res, and Custom· refresh rate and then select “Apply” and press the knob for application. If the application is not confirmed, the custom resolution is invalid.

Second: Screen Settings

Step 1

The screen is power-on, if the cabinet is in the normal display, enter Step 2; if the cabinet is in the abnormal display, first, load the cabinet file, and save it to the receiving card; see the detailed operation in Advanced Settings

Step 2

Return to the “Screen Settings” submenu. Rotate the button to switch to the submenus of other options respectively to perform configurations, as shown in the following figures:

Step 3

Set Cabinet Row Qty and Cabinet Column Qty according to the actual situation of the screen.

Step 4

Set Port1 Cabinet Qty. The device has some limitations on the cabinet quantity of ports.

 For details, see precautions for screen settings;

Step 5

Set the Data Flow (Front View). 

Third: Brightness

Return to the main menu interface. Press the Knob to select the corresponding value of Brightness. 

You can rotate the Knob to adjust the value at this time.


Fuorth: Output Settings

Output settings are divided into three cases:

Case 1 Disable Scaling

The sizes of the output image and input image are the same, and the original scale output is used.

If the input resolution is smaller than the LED display in one direction, the LED display may not become bright in this direction; 

if the input resolution is greater than the LED display in one direction, the input contents may not be displayed completely in this direction. 

This option applies to the application scenarios requiring point-to-point display. 

Horizontal offset and vertical offset of images can be set according to the needs, and at this time the displayed contents may move to the left or top at the LED display.

At this point [Scaling] is disabled.

case 2 Auto Fit

At this point [Scaling] is enabled, and [Auto Fit] is enabled.

When enabling [Auto Fit], the input contents will be fully zoomed to the size of LED display,
and the input contents will be adaptive to the size of LED display. This mode is suitable for
full-screen playback of the contents.

case 3 Custom Scaling

At this point [Scaling] is enabled, while [Auto Fit] is disabled.

The following steps should be performed for custom scaling:

✓Step 1 Set the input Capture, i.e., capture part of the interesting screens from one starting point of inputting image and display it on LED display.

 It is generally required to set Horizontal Res (smaller than or equal to the lateral resolution of the input source),
Vertical Res (smaller than or equal to the vertical resolution of input source), horizontal X, and vertical Y.


✓Step 2 Set the output layer, the size of the layer is smaller than or equal to the size of the LED display; 

After setting the layer, the images can only be adaptive to the display size within the range of the layer.

 This option is applicable to the application scenarios requiring reserving a border at the LED display or restricting the playing area.

After setting according to the above two steps, the captured contents will only be input and displayed at the settings area on the LED display


Part Three NovaStar VX4S Troubleshooting

✓Inspect whether the power connection is correct and the switch has been turned on

✓Play the Self-test image and confirm whether the connection of the LED is correct and works normally

✓Inspect whether the VX4S output has a signal and shows a blank screen

✓Inspect whether the mode and parameter of the screen configuration are correct

✓Inspect whether the power connection is correct and the switch has been turned on

✓Play the Self-test image and confirm whether the connection of the LED is correct and works normally

✓Inspect whether the VX4S output has a signal and shows a blank screen

✓Inspect whether the mode and parameter of the screen configuration are correct

✓Check whether the VX4S Image Mosaic switch has been turned on and whether Image Mosaic parameters settings are correct


✓Check whether the input signal source is normal

✓Check whether the volume settings are appropriate


✓Check whether the Audio mode setting is correct


✓Confirm that VX4S is well connected to the multifunction card and that The corresponding output port icon on the main interface has been highlighted


✓confirm whether the audio output mode of the multifunction card is in HDMI mode (it is required to connect LCT for confirmation and setting)

Part Four Conclusion

Through this article, we believe you have a brief understanding of the NovaStar VX4S LED video processor.

Novastar Vx4S LED video processor is top of the line in terms of both practicality and quality.

If you are interested in this product or have any questions, please feel free to consult our customer service.

Our professional team is here to bring you 24/7 service.

We believe our products and services will make you satisfied.