I'm from UK. I have what appears to be a jupiter ace 4000. From a bit of googling, the 4000 was intended for the US market, and has a video out in addition to the TV out. Mine has a UK TV out but no video connection and inside it has a series 2 ACE PCB. There is a hole where the video RCA would be but it's part blocked by the TV modulator.
I have seen a 4000 on UK ebay and zooming in on the photo's it looks the same as mine.
Can anyone help with identifying this? Is is a UK 4000, a series 2 inside a 4000 case intentionally created by cantab for the UK market or has someone just put an ACE pcb into a 4000 case?