Amiga Action Replay MK III replica

[hooverphonique]

Originally Posted by Nightshft

I searched and found a picture of the AR1 pcb, which I took in 2021. I then sold the cart, so sadly I can't take more pictures or remove the 4 stickers.

As already stated the two 27c256 are 32kB Eproms. "-20" probably means 200ns iirc. Back then I read them and I remember that the contents exactly matched (same hash) the AR1.bin file that's floating around the web (for usage with Winuae I think).

On one of the chips with stickers, "PAL" is peeking out, so those are probably the 4 PLD's I called above.. So it looks like the mk 1 is a through hole part version, and the later ones surface mount. They probably added an extra PLD for some fixes/features.

[Jope]

Originally Posted by Nightshft

I searched and found a picture of the AR1 pcb, which I took in 2021. I then sold the cart, so sadly I can't take more pictures or remove the 4 stickers.

It looks very similar in design to the ProAccess http://amiga.resource.cx/exp/proaccess.

Two 8kx8 SRAMs and a pair of EPROMs to get 16 bits of width.

Also both had the FDOS disk format, the codebase must have been rather similar

[na103]

I added the version of the board with the two 27C1001 EPROMs instead of the 27C010 OTP EPROMs.
it could be useful in the future to test new versions of software.