Led display only displays part of the image, Signal needs to scale, No display in the second half part of led display – RGBLink VSP 9516S User Manual User Manual
Page 116: Resolution is insufficient, Left screen appears two black sides, Adjust de deviation, Led display only shows part of the image

VSP 9516S User Manual 116
LED Display Only Displays Part of the Image
Signal Needs to Scale
Push [SCALE/CROP] button in the processor and adjust the actual screen
size of the screen, including the "H SIZE", "V SIZE", ―H POS‖ and "V POS",
push the knob to confirm.
No Display in the Second Half Part of LED Display
Resolution is Insufficient
Please make sure the points of the screen width and height, choose the
resolution to be bigger than screen width by button [MENU/EFFECT] , and
push the knob to confirm.
Left Screen Appears Two Black Sides
Adjust DE Deviation
This phenomenon needs to adjust the DVI output and DE migration of the
processor, push the [MENU/EFFECT] button, choose "OUTPUT" and find
the corresponding output name, such as "DVI1 OUT ADJUST", and find
"DVI1 DE" again, make an adjustment for corresponding horizontal and
vertical DE, please remember to save to the corresponding channel after
setting up, save to SAVE1 by default.