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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: Rotzloeffel on November 09, 2016, 12:25:48 PM

Title: New Amiga 2000 Rev 6.2 Boards!
Post by: Rotzloeffel on November 09, 2016, 12:25:48 PM
Hey out there,

I want to share with you an actual Project on a1k.org for a Amiga 2000 replacement Board!

First protypes arrived and are ready for assembling. This will be a "do-it-yourself" Projekt.....

Actually there is NO DATE for a community order... but maybe it will come :laughing:

Red is beautyfull :)
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: duga on November 09, 2016, 08:40:29 PM
Interesting as long as I only have to put in the CPU and the custom chips, without any soldering.
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: Oldsmobile_Mike on November 09, 2016, 09:08:11 PM
Neat!  But why didn't they go the whole hog and make them 6.5?  Latest & greatest, and all that...
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: James1095 on November 10, 2016, 01:26:43 AM
What is the purpose of new boards? You can't just go out and buy the custom chips new. I think if I were going to produce a new motherboard I would make it use current production parts, FPGA for the chipset.
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: Vlabguy1 on November 10, 2016, 01:27:30 AM
Quote from: Rotzloeffel;816256
Hey out there,

I want to share with you an actual Project on a1k.org for a Amiga 2000 replacement Board!

First protypes arrived and are ready for assembling. This will be a "do-it-yourself" Projekt.....

Actually there is NO DATE for a community order... but maybe it will come :laughing:

Red is beautyfull :)


Ha... are the parts included..
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: Oldsmobile_Mike on November 10, 2016, 01:34:27 AM
Quote from: James1095;816277
What is the purpose of new boards? You can't just go out and buy the custom chips new. I think if I were going to produce a new motherboard I would make it use current production parts, FPGA for the chipset.

Um, for people who have motherboards that have been eaten by leaky batteries?  :p
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: Acill on November 10, 2016, 01:49:07 AM
I would get one of these to build!
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: Rotzloeffel on November 10, 2016, 08:31:22 AM
Quote from: Vlabguy1;816278
Ha... are the parts included..

As in the past done with the A4000T selfmade-Project, I think you will get the board and the barts in one lot..... or you can unsolder them from defektive boards.....
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: yssing on November 10, 2016, 09:22:47 AM
Quote from: Oldsmobile_Mike;816279
Um, for people who have motherboards that have been eaten by leaky batteries?  :p


I was thinking the same, it's excellent for people who have had their mobo tracks broken for one reason or another.
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: whabang on November 10, 2016, 02:58:35 PM
Ooh, if these are made publicly available at some point then I might consider ordering one. Are the new boards mil-spec? ;)
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: AJCopland on November 10, 2016, 04:36:06 PM
Quote from: Rotzloeffel;816286
As in the past done with the A4000T selfmade-Project, I think you will get the board and the barts in one lot..... or you can unsolder them from defektive boards.....


Wait, you can get a replacement A4000T motherboard?
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: LoadWB on November 10, 2016, 04:43:08 PM
Quote from: whabang;816297
Ooh, if these are made publicly available at some point then I might consider ordering one. Are the new boards mil-spec? ;)


https://www.youtube.com/watch?v=avYnhH95u_0
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: psxphill on November 10, 2016, 09:18:37 PM
Quote from: yssing;816288
I was thinking the same, it's excellent for people who have had their mobo tracks broken for one reason or another.


Yeah, that's about it because you'd need a case and keyboard anyway.

I wonder if they could respin the board in a standard case size.
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: Acill on November 10, 2016, 10:03:40 PM
Quote from: AJCopland;816299
Wait, you can get a replacement A4000T motherboard?


You could get bare boards at one time but I havent seen them in a couple years now.
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: magnetic on November 11, 2016, 01:04:57 AM
Now that is cool! I wish i could solder like Acill
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: Grega on August 04, 2017, 08:09:47 PM
did this get any legs/get anywhere?
only reason i ask is i'mg going to start putting the components into eagle to build these boards.
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: Jeff on August 04, 2017, 10:04:47 PM
I would like at least one of these. Are they available somewhere, or the gerbers?
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: BLTCON0 on August 04, 2017, 10:20:27 PM
Quote from: Oldsmobile_Mike;816273
Neat!  But why didn't they go the whole hog and make them 6.5?  Latest & greatest, and all that...

My guess is it's the 6.2 fixes that "mattered" and so they sensibly decided to incorporate up to that level on the PCB.

Indeed, it seems:
6.3 boards just  bring ECS Denise and KS 2.04
6.4 - 6.5 boards support the 8375 Vbb replacement Agnus for the older 8372A (they still got it wrong on 6.4 and had to rework, 6.5 was probably a correction to the "correction").

So 6.3 is a cosmetic and 6.4 - 6.5 an undesirable difference, as the vast majority of Agnii out there (either as working motherboard pulls or individually available chips) is the 8372A (318069-029) and not the Vbb 8375 1 MB replacement (318069-16/17).

Hence the 6.2 rework level.
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: trekiej on August 04, 2017, 10:36:45 PM
I am glad someone has done it.
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: Oldsmobile_Mike on August 04, 2017, 10:36:49 PM
Quote from: Jeff;829092
I would like at least one of these. Are they available somewhere, or the gerbers?

Maybe, you just have to jump through about 30 hoops of fire and spend six hours registering on A1k to find out...  lol, ugh.  :lol:  :angry:
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: EugeneNine on August 04, 2017, 10:44:15 PM
I started redrawing the a2k schematic in KiCad to see if I could make a board someday but if its already been done..
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: gary2000 on August 05, 2017, 01:40:09 PM
That is good, but an A4000D seems like it would be more in demand and one that I would buy.  Maybe someday.
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: DWV on August 07, 2017, 03:28:09 AM
Actually, an Amiga 4000 reworked to fit in a standard ATX case would be the cat's meow!
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: Iggy on August 07, 2017, 05:26:49 PM
Quote from: DWV;829175
Actually, an Amiga 4000 reworked to fit in a standard ATX case would be the cat's meow!


I'd second that, especial in a compact mid-tower or better yet, an MATX case.
With an ATX power supply connector.
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: Oldsmobile_Mike on August 07, 2017, 05:34:38 PM
Quote from: Iggy;829185
I'd second that, especial in a compact mid-tower or better yet, an MATX case.
With an ATX power supply connector.

If wishes were fishes, right guys? :laughing:
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: Vlabguy1 on August 08, 2017, 02:32:49 AM
Quote from: Rotzloeffel;816286
As in the past done with the A4000T selfmade-Project, I think you will get the board and the barts in one lot..... or you can unsolder them from defektive boards.....



Oh thats no fun..lol... would be great if it was a kit..
Title: Re: New Amiga 2000 Rev 6.2 Boards!
Post by: magnetic on August 08, 2017, 02:39:55 AM
Quote from: DWV;829175
Actually, an Amiga 4000 reworked to fit in a standard ATX case would be the cat's meow!


pure fantasy land