VP4 Manual



The VP4 is an advanced color corrector ideal to color match cameras. It does feature secondary corrections like a 12 vectors multimatrix and other controls only found in CCUs such as detail and coring. All channels can directly be controlled from the RCP.


  • Network: the VP4 needs an ethernet connection to the RCP, and a PoE Switch is necessary to power the RCP or an external 12V power supply should be used.

  • SDI Cables: 9x 3G-SDI cables with DIN 1.0/2.3 connectors are required to connect the 4 channels and reference.

  • Computer: required to access the web configuration of the RCP.


  • step 1 Network setup: connect the RCP, the VP4 LAN port and your computer to the switch. For software update, connect the switch to your internet access.

  • step 2 Video connection

    • Connectors: DIN 1.0/2.3
    • Video: 720p/1080i HD-SDI or 1080p 3G-SDI in 50/59/60
    • Reference: compatible with Black Burst and Tri-Level
  • step 3 Turn VP4 ON Long press on the power button will turn VP4 on/off. The boot status is displayed on the LED on the front panel.

    • The first LED turns green when the unit is powered.
    • The second LED turns green when the unit is booted and operational.


The VP4 is configured and operated from RCP.

Configuration for a RCP with serial CY-RCP-18-34.

  • step 1 Access the RCP Configuration Web UI.

  • step 2 Verify that the VP4 appears at the bottom of the page.

  • step 3 Add the video channels

    In the configuration, video processors are added as post-processing options to cameras. In this quick start guide, we only want to control the video processor and so we will use a camera of type Not Controlled.

    Add a Not controlled camera: click the + button on the top right of the camera section. New camera properties appear in the right sidebar. Fill-in these fields:

    • Number: camera number displayed on the RCP
    • Name: camera name displayed on the RCP
    • Camera Head Model: Select Not Controlled camera from the list. An interface section will appear.
    • Interface Port: Add the first VP4 video channel in the Video Processor section.

    Repeat for the other channels

Genlock settings#

Video genlock selection isn't available yet from the configuration panel. In the meantime, the development interface does provide the possibility to configure it although it's not pretty and not the most convenient.

  • Go to http://10.192.x.y/dev/app.html
  • Click on the VP4 external block to highlight it green
  • On the right side, the VP4 properties will be shown. You might have to zoom the window out if it is clipped or not shown at all.
  • Specify the genlock parameters in the corresponding text field of this table.

The genlock input parameters format is:

[freerun|genlock] [horizontal pixels] [vertical lines]


genlock 0 0

The 0 0 parameters are the horizontal pixels and vertical lines of phase adjustment.


The VP4 color correction and color matching are operated via a Multi Matrix on the RCP.

To access the RCP Multi Matrix screen, Click on Paint1, then push the same button again to see Paint2 using the blue buttons. Then click on M-Matrix in paint2 menu using the white buttons. (see RCP Screens Overview/Navigation)

Color correction is done by selecting a color vector and the changing his hue and saturation.


Vector selection#

Vectors are identified by a number from 1 to 12.

GATE will highlight the selected vector by desaturating the unselected colors. This allows a quick visual selection of the right vector. This can't be used while the camera is on air as this affect the main signal. Another option is to press the vect/peek knob which will generate a small burst of saturation on the selected vector which will be visible on the vectorscope but won't affect the live image significantly.


VP4 Controls#

  • vect/peek Rotate the encoder to select the color vector that needs to be modified. Push the encoder will do a saturation peek allowing to identify the current color vector on screen.

  • hue Rotate to change the hue of the selected color vector.

  • Saturation Rotate the encoder to set vector color saturation.

  • enable Rotate the encoder to select OFF, ON, Gate.

    • GATE will highlight the selected vector by desaturating the unselected colors.
    • ON enable color correction.
    • OFF disable color correction.