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The Amiga 2000 replica project

Floppie209 Hi here are some pictures. I normaly do not make pictures but I had some on my HD. The Amiga 2000 replica took about a year to complete with the at the first prototype (v 1.5) none working zorroslots and the video expansion port showing artifacts. With the help of a view guys from A1K forum who build the prototype aswell we found that I missed 2 little traces and after that was fixed the board worked without any problem The final version is 1.8.5 and has some power traces widened, smd leds for the voltages and a coincell battery with extra led. This version is made by a lot of people incl John Hertell and works perfect. The files can be found on:
https://github.com/Floppie209/Amiga2000-remake

For the reamiga 3000 smd a have just one foto (I will take more wen I take the case apart again). I got this board from John Hertell and build it up with the help of his tutorial build on his website. The most trouble I had was getting certain chips as they are not made anymore. At first I got some from ebay but some were fake. I then ordered them at UtSource and the really sell good chips, no fakes up to now. (ok it is not cheap, but you get the real deal). If you follow Johns tutorial it will work first time (mine did). I also made a brand new daughterboard designed by Matze (from A1K) With rom chips it is mandatory to use a daughterboard otherwise you get a yellow screen. On this daughterboard there is a I2C connector (with chip on the backside) which needs to be programmed via JTAG. It works really well. I also rebuild the powersupply for the 3000 and reused the old case for the rebuild. I will make a foto from the inside later. There is a very small ups inside from seasonic and an atx adapter to get the tick signal.

I am now planning to make a a3640 replica (from John Hertell) for the reamiga 3000 but, as I am pretty busy at work, that will take some time. (I do have all the parts). For now I have installed a SCSI2SD and am busy building a good HD image. This also takes time.

I you have any more questions just ask.

Floppie209

Amiga2000_proto.jpg

Amiga2000_1_8_5a.jpg

Reamiga3000.jpg
Page 1 of 1 1 https://forum.thecompany.pl/general-talk/the-amiga-2000-replica-project-t6171.html
2021-03-08T21:41:46+01:00
Hi here are some pictures. I normaly do not make pictures but I had some on my HD. The Amiga 2000 replica took about a year to complete with the at the first prototype (v 1.5) none working zorroslots and the video expansion port showing artifacts. With the help of a view guys from A1K forum who build the prototype aswell we found that I missed 2 little traces and after that was fixed the board worked without any problem The final version is 1.8.5 and has some power traces widened, smd leds for the voltages and a coincell battery with extra led. This version is made by a lot of people incl John Hertell and works perfect. The files can be found on:
https://github.com/Floppie209/Amiga2000-remake

For the reamiga 3000 smd a have just one foto (I will take more wen I take the case apart again). I got this board from John Hertell and build it up with the help of his tutorial build on his website. The most trouble I had was getting certain chips as they are not made anymore. At first I got some from ebay but some were fake. I then ordered them at UtSource and the really sell good chips, no fakes up to now. (ok it is not cheap, but you get the real deal). If you follow Johns tutorial it will work first time (mine did). I also made a brand new daughterboard designed by Matze (from A1K) With rom chips it is mandatory to use a daughterboard otherwise you get a yellow screen. On this daughterboard there is a I2C connector (with chip on the backside) which needs to be programmed via JTAG. It works really well. I also rebuild the powersupply for the 3000 and reused the old case for the rebuild. I will make a foto from the inside later. There is a very small ups inside from seasonic and an atx adapter to get the tick signal.

I am now planning to make a a3640 replica (from John Hertell) for the reamiga 3000 but, as I am pretty busy at work, that will take some time. (I do have all the parts). For now I have installed a SCSI2SD and am busy building a good HD image. This also takes time.

I you have any more questions just ask.

Floppie209

Amiga2000_proto.jpg

Amiga2000_1_8_5a.jpg

Reamiga3000.jpg

2021-03-08T21:57:55+01:00

Re: Greetings from the Netherlands

Wooow. Greetings and congratulations of your skills. I dream of new A2000 motherboard.
You didn't want to mount agnus 8375 and 2mb of chip by the way you made aA2000? it's veru useful.
How long you have been completing chips for A3000? Some of them are rather hard to find.

2021-03-08T22:08:16+01:00

Re: Greetings from the Netherlands

You can build one yourself by using the files on my github or buy one at www.alinea-computer.de. On the final version is a 2mb agnus board (ace2) but you cant see it on the picture. I didnt implement it as I was making a replica (to replace my batteryacid eaten original board). and placed an ace2 later.
The chips for the reamiga were quite easy to get. The only chip I'm still look for is the amber chip as that one is only found in the 3000 and the 2320 flickerfixer and is very rare. I used the one from my (still broken) original amiga 3000 board that came with my case. I will fix this board later.

2021-03-08T22:55:50+01:00

Re: Greetings from the Netherlands

And the Agnus 8372AB (B) for A3000? You know, A3000 is still in my dream zone. I'm just curious ;)
A2000 I have on my list if only I feel that I acquired sufficent skills. Still practising ;)

2021-03-08T23:19:30+01:00

Re: Greetings from the Netherlands

A guy on A1K got a big pile of agnus a3000 chips. He had 2 types. 10 original agnus chips and about 30 VBB -18 agnus chips. The 10 original chips just plug in any a3000 and for the vbb one you had to do a little jumper patch. I was lucky to be quick enough to buy an original agnus from him for about 25 euro incl shipping. But I bought my chips about a year ago and they are now even harder to find. You can get some from individual computers in Germany. The cia chips came from poland actualy. The a2000 chips are very easy to source.

For the a2000 board, everthing is throughhole so it is very easy to build. Smd is much much harder, i practised my skills on small boards before starting my reamiga 3000 build.

2021-03-08T23:50:05+01:00

Re: Greetings from the Netherlands

That's why i want to start from A2000. I have two of them. One is beauty revision 4. I't quite unusable because less of chip ram. But still I could use the case for replica. It needs only small adaptation. Rev. 4 is bit different than later revisions.
That's plan for next winter and long evenings ;)

2021-03-09T08:43:44+01:00

Re: Greetings from the Netherlands

Good luck with it then. Have fun.

2021-03-11T23:07:45+01:00

Re: Greetings from the Netherlands

I hope I could handle this :) Two more questions. Is there any list of components needed to build A2000 Board? What is approximate cost of that?

I have already bought A500 8a1 board some time ago as a chip giver. There is Super fat agnus so i will need also additional board for that to have 2mb of chip ram.

2021-03-11T23:56:36+01:00

Re: Greetings from the Netherlands

Hi Atalante,

The Bom is on my github page as wel as an order list (bestellliste) with partnrs for different companies) and the cost of the parts is, If you buy them all new around 250 euro. Some parts are difficult to get: mfp102, the ram chips and the PST518B. The J113 is a dirrect replacement for the mpf102, but for the other ones you have to search on ebay for instance. For the 2mb agnus board i saw some adverts on amibay and you could also ask on the A1K forum if someone has a kit for sale. I bought mine ready made from individual computers.

Regards

Floppie209

2021-03-12T14:50:22+01:00

Re: Greetings from the Netherlands

The ram Chips aren't the same like in A500? MFP102 you mean transistor? Maybe MPF102? The fun is not only soldering but completing things :) I have some old PC boards, maybe there is something on them.

2021-03-12T15:02:53+01:00

Re: Greetings from the Netherlands

Yes ofcourse you are right it is MPF102. I made a typo. Well if you have donorboards you should use them for parts, but test the parts before you use them in the new board. You wont be the first to have a non working board because of defective used parts. But as I said you can use use J113 instead of the MPF102 and you can still buy J113 from mouser.com. If you have trouble finding the MPF102 or PST518B please tell me as i have some spare ones and will be happy to send them to you if you need them. The ram chips you can buy from UTSource. But if you use them make sure that you order more than just 8 ramchips (allways buy some more then you need, just to be sure that you have 8 working ones). The schipping cost is arround 25 euro and you have to pay taxes. So when I use them I order arround a 100 euro's in different chips. In fact they have most difficult parts in stock. All the logic chips can be bought new from mouser, digikey ed.

Regards

Floppie209

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