Articles from John "Chucky" Hertell

Reverse engineering of the Blizzard 1260 PCB

Well. We all know about the “new” Phase5.. he sold me 2 of the Blizzard PPC2 PCBs that I found out was faulty.. no ground connected. and he refused to refund or send new working pcbs.

And at Amiga32 he showed the Blizzard 1260 PCBs. saying that they would go to production any day.

now still one year after.. no production. so this summer I started to actually do a reverse engineer of it, just like I done with the A3640 and Amiga 1200..

Building the ReAmiga 1200 from the ground and up! Part1

I decided to do a writeup of my build of my personal ReAmiga 1200 using NOS parts.

my plan was first to tell exactlty where all signals get up etc. but unfortunally this would simply take so extremly much time so I do more like “function by function” instead.

First, I decided that I wanted to go all BLACK!

IMG_0210

Moving components from a dead A1200 to an ReAmiga 1200

This is a small writeup how to move components from an dead Amiga 1200 to a ReAmiga board. (and basically the same as how to build one)

First of all I want to excuse the BAD soldering on the pictures here as I was out of solderwire and all I was able to get was leadfree crap.
and DAMN it is CRAP so solderjoints looks like I am drunk when soldering.

Remember this is NOT a SMD Soldering tutorial.

Introducing the Re-Amiga 1200

tl;dr:    Files at bottom of this post :)

 

One slow day (12th of june 2018) being on a hotel doing work for one week I asked on facebook on the “Commodore Amiga” group:

 ”Reversetime. What pcb do you think I should reverse? Come with ideas. A board often damaged by battery or caps. Preferbly smaller ones. So give me hints of.. “whats next”

Doing the A3660 CPU board, the first open “Seminative” 060 solution. and why.

This is the story how to reverseengineer a 040 board, and take it to the next step.

This board is shown for the first time at Amiga32 in Neuss/Germany

TL;DR:  files at bottom of this post!

 

The Commodore A3640 is a well known CPU board for the Commodore Amiga.

It is also know as the 040 board that is ordered as the WORST CPU board ever…

AND  it is true..

BUT! this board is the only we have with all data on all chips..  all GAL data is released by Dave Haynie some time ago.

Upgrading the Apollo 1240 to 1260

Well next card in the series how to upgrade different 68040 cards to 68060, it is time for the Apollo 1240.

First, As Jens schönfeld ( Individual Computers ) owns the rights of the Apollo cards, I asked him for permissions especially when this requires a ROM change.  he told me that I was allowed however only if I publish a diff..

But he also pointed out that he does not like the Apollo. This is no news but this is what he told me:

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