RGBlink VSP 516S User Manual page 41

2. Hardware Orientation
VSP 516S Front Panel
processor now works under subchannel mode, user can switch channels in
subchannel; be under subchannel mode if you push Reset button.
Note
AB in VSP 516S doesn't support Fade-In-Out.
Push to go to between scalezoomcropscale mode；
Push to adjust the brightness and the contrast ratio, push to enter
to the relevant Menu, and then push the UP and DOWN to adjust the
brightness and the contrast ratio.
Push to select the output format by using the UP and DOWN
Push to set single or dual channel
Push to save current config.
VSP 516S User Manual 41