A2000 Question

[dannyp1]

What are the major differences between a A2000 NTSC and a A2000 PAL computer?

Thanks,   Dan

[save2600]

You just named the main difference! lol

Agnus is the gal responsible here and coupled with a motherboard jumper, determines which mode isto be native.

When I had a PAL A1200, I liked that it booted straight into PAL. Most of the games and such floating around the internet seem to be in that format. But technically, you can switch any later model A2000 between PAL and NTSC rather easily. With a program such as Degrader or Early Startup if you're running Kickstart 3.x.

Just be sure you have a PAL capable monitor if you want to switch to the 50hz standard. Most of the 1084's (any flavour) do a nice job. 1080's distort the picture some.

[nishtek]

What are the major differences between a A2000 NTSC and a A2000 PAL computer?

Thanks,   Dan

none.
there is a pad on the motherboard next to agnus that determines the default (pal or ntsc).  or you can switch your amiga to pal or ntsc in early startup.

[dannyp1]

So it is the same motherboard and changing a jumper is the only difference?

Dan

[tone007]

I thought some of the earlier Agnus chips could only do one mode, but maybe those didn't come in 2000s.

[nishtek]

I thought some of the earlier Agnus chips could only do one mode, but maybe those didn't come in 2000s.

it did come on come A2000/500s.
maybe with 4.x revisions (although I do have one board hanging on the wall and it has a jumppad as well).
So in general the switching would not work if Agnus did not support it (Agnus 8370 NTSC and 8371 PAL found on some rev 4.x and rev5 and earlier A500s.  8370 was made in separate versions).
the Agnus is the exact chip in newer revisions (6 and up) : 8372A     318069-02 for pal and ntsc.

@Dannyp
Curious, why did you ask this question?

[Zac67]

Earlier pre-ECS 8370 (NTSC) and 8371 (PAL) aren't switchable, some of the latest 8375 only in software. Yes, the boards are exactly the same, the only other difference is the clock chip (NTSC: 28.63636 MHz, PAL: 28.37516 MHz), but that only matters if you plan to connect a genlock or an A2024 monitor.

[dannyp1]

I asked the question because I had always thought that there was no difference other than changing a jumper.  Lately though, I have seen a couple of A2000's on EBay that are advertised as being "PAL".  It made me curious.