OK Next part..
Time to get Chipmem working. and this is one of the bigger changes Commodore did on the CR. they added chipmem onboard.
so add:
U212, U213 (16V8) (those are NOT compatible from the GALs from the Rev2 A4000)
U260, U261, U262, U263 (memory)
Now Chipmem will work.
This time it is time to build an ReAmiga 4000CR..
Info and downloadable files at: https://www.reamiga.info/?page_id=165
Locator available at: https://locator.reamiga.info/locator.php?project=ReAmiga4000CR
Now a short description how to upgrade an Apollo 4040 (3040) to 4060 (3060)
As usual the mandatory “Before” picture:
Noticed that TF1260.com is not working.
after a wordpressupdate the redirect stopped working. will check it.
Meanwhile use this link: TF1260 Information | John “Chucky” Hertell
If you are using a external scandoubler or similiar. like the D520 and get a bad picture, no picture or weird colors on your ReAmiga 1200.
This can be that the “buffer” of RGB signals is screwing things up. so here is a quick description how to remove that and fix the issue.
First locate the components for this:
Ok time to to the DB for the AA3000+
This is more or less “one stage”
First as usual: a board with all passives on:
I made a Locator for this instead of Hese file:
https://locator.reamiga.info/locator.php?project=AA3000PlusDB
OK we now have chipmem working in DiagROM.
To get serial INPUT to work add U305 (1489)
To fix some clocks etc add U215, U710 (74F08), U205 (74HC4066)
In my series of building different Amiga replicas, it is time for the Amiga 4000.
First of all, locator is available at: http://locator.reamiga.info/locator.php?project=A4000
Populate all passives (resistors, Capacitors, Resistornets, Transistors and diodes) but skip the electrolytic caps.
you should have a board like:
This is a guide how to build the Amiga 2000 Replica.
(not not real “ReAmiga” even if some says so…)
Locator available at: http://locator.reamiga.info/locator.php?project=A2000
Projectpage: https://github.com/Floppie209/Amiga2000-remake (NOPE this is not mine as it is not my project!)
OK.
Now we have a fully working ReAmiga 3000 except the Flickerfixerpart. This I wanted to take as a separate part.
I can point you to a very good guide here: https://www.tsb.space/knowledge-base/a3000-flicker-fixer-repair-and-adjustment/