miles put it correctly!

THIS is the diagram on pages 9, 12, 14 and 17 of the version 1.0 August 31 1993 Manual (except the original is monochrome). It states:
The upper connector will be connected to the monitor. You will not damage anything by reversing the connections, it will become apparent when a Picasso II screen mode is selected that the connection is incorrect - the result will be a blank screen.
On an A3000, the
to Amiga connection is to its 15pin VGA port. On MY A2000, the
to Amiga connection is to the 15pin VGA port on the A2320 Video Deinterlacer board in the video slot on far-right side.