View Full Version : Converting NTSC A1000 to UK A1000

11th March 2009, 11:48
I'm in the process of buying a US A1000 which I intend to use with a step-down transformer and TFT screen via some sort of scaler/scandoubler.

Over time, though, I'd like to convert it to a UK PAL machine just for the hell of it. I know I'll need a UK PSU and an 8371 Agnus and probably have to change the crystal. I've had a google about but not come across anyone trying it before. Anyone here got any opinions?


11th March 2009, 16:46
I've not heard of anyone converting an Amiga from NTSC to PAL before. Is that the only requirement to convert it? I would have thought there was more to it than that. Obviously you know that if you do manage to convert it, the CPU will be slower?

11th March 2009, 16:52
50 Hz PAL and 60 Hz NTSC TV output by default versions available

* 50/60Hz mode switchable by software, although switching a PAL Amiga to NTSC mode produces a 60Hz PAL display, and vice versa (this would usually suffice for software relying on a particular format)

tbh i would have thought buying a uk A1000 would be easy and not too expensive, they don't seem to go for much money at the moment.

cheers, JuvUK

11th March 2009, 19:45

by far the easiest method would be to use a PAL A520 from the Video port :) job done no need to do anything else.

although you could replace

the Agnus to 8371 PAL,
the 3.58 colour ouput clock to 4.43

that would do it, I will hit up the specs later :)

11th March 2009, 21:04
I think you also need to modify a pair of traces on Agnus (need swapping 8361 to 8367) and on the video encoder, IIRC.

I think Daphne (pre-Denise) don't need changing.

11th March 2009, 21:13
Aye, I know i may be tad slower but it shouldn't matter for my purposes.

I've not seen a UK A1000 going for a long time, one of the reasons I had a hunt around the other day and, luckily, found this forum. I've seen a couple on eBay over the last year or so but they've gone for silly prices. I may just have been unlucky and misssed some bargains.

@rkauer Zetr0
Cheers guys, the more info I can get the better :-)

Might be nice, just for once, if I can do something few others have!