When I booght my A1000 I asked about a monitor for the A1000 and the C64 and the sakesman gave me a "Retail" box and not the usly bundled A1084. The difference was, that I got about four or five differnt cables with it. One was for connecting old monochrome PC to this monitor. This coul dbe that cable.
The cables were labled (C128-1084, Amiga-1084, C64-1084, PC-1084, Scart_Out-1084)