Picked up a 1000 today...

[amigadave]

That is quite a find!  It is a real shame that the original owner did not take better care of that A1000.  Specially after spending the substantial amount of money to upgrade the motherboard to a Phoenix board.  

There is more information about it at the "Big Book of Amiga Hardware".

Congrats!

[amigadave]

You lucky b*stard! Congrats on THE Holy Grail of A1000s...

I wouldn't call it the "Holy Grail" of A1000 gear, but it is a nice piece of Amiga history and a nice fitting step up toward making a stock A1000 more like an A2000 while still fitting inside the original case.  The A1000 case was one of the reasons I liked the Amiga in the first place.  When I bought my first Amiga I had to choose between buying a brand new A500 at a dealer, or buying a used A1000 that came with a 1080 monitor, 512kb RAM, extra floppy drive (A1010).  I opted for the A1000 because I liked the case design better than the A500, which cost me even more money later when I started to upgrade it, as the upgrades for the A500 were cheaper and easier to find than upgrades for the A1000 were, even in 1988.

[amigadave]

For info about the board, check the Big Book of Amiga Hardware and also ask around on the a1k.org website.  Almost all of the people and messages on a1k.org are in German, but you can always translate them using something like Google Translate, or Babelfish.

Did you ever figure out where the memory expansion board/hard disk interface plugs into, or if it even works with the Phoenix board?

The Phoenix board itself is supposed to be capable of having 2mb of RAM with a jumper that allows you to use it as 2mb Chip RAM, or 1mb Chip & 1mb of Fast RAM.

[amigadave]

Interesting info about your board and it's missing chips.

I still think you should try to communicate with the guys at a1k.org.  The Georg Braun A1000 motherboard replacement was a later copy of the Phoenix design and they might even have some of the files needed to create the PAL & EPROM chips you need.  I am not sure if the GBA1000 motherboard is the same as your board, or if it has several changes made by Georg Braun (who is an electrical genius).  He spent hundreds if not thousands of hours and euros on his A1000.  Check out his website too.  http://www.gb97816.homepage.t-online.de/

[amigadave]

@DonutKing,

It looks like the A1000 you have went to the right guy.  It is great to see that you are spending the time to lovingly restore it and find the missing chips.

I have not yet begun to work on assembling my GBA1000 replacement motherboard, but I imagine that I will need a GAL programmer like the one you have purchased for some of the chips that I will need for that project.  It might be easier to complete, if I knew how to read German, but I am sure I will be able to get what ever documentation from Georg Braun's website translated to English so I can understand them and complete the project.  I need to check up on the other 45+ people that purchased their GBA1000 motherboards at the same time I did to see how they are progressing.

That is one Amiga that I will be keeping and won't be included in the sale or auctions I am setting up on eBay right now.

Keep up the excellent progress reports.  They are very interesting, specially with pictures!  

I hope you can complete the restoration and get the chips programmed that you need.  Good Luck!

[amigadave]

Great thread DonutKing!

A real service to the community with all the pictures and explanations you are providing.  It will come in very handy, should someone else find a Phoenix board to restore.