Tag: Atari
-
Newest Version of AR-II Documentation
Atari Regulator/Audio II (AKA the A/R-II) Version -02 Information By James R. Twine (jtwine@jrtwine.com) ©2009-2026 Latest version available online at https://www.jrtwine.com/blog/?p=590 References and Source Material Information is this document is from personal experience with these beasts, and some was stole^H^H^H^H^H… um, I mean… inspired… from many sources including official Atari docs (wiring diagrams, schematics)…
-
Can you “Bulletproof” an Atari AR-II Power Supply? I Think I Can…
Well, like the title initially asks, can you really “bulletproof” an Atari AR-II board? From what I have found on the Internet, and older material like Star Tech Journals, the answer really is no. Pretty much all sources that mention “bulletproof” and “AR-II” on the same page are only taking about performing the Sense mods,…
-
Dig Dug with Floating Pins
Going through my boards, I came across a second Dig Dug board. This one boots to static garbage and no sound. Watchdog is barking. Removing one of the CPUs gets different garbage. Tried replacing with a known good one, no change. Checking the pins shows me that a couple of the data lines, from…
-
Centipede Cocktails — Cocktail #2
My previous post, about Cocktail #1, clearly documents the “easy one.” This second one is gonna be another story. It has a very dead monitor, and a non-functional board. I have not yet benched the monitor, but it has no neck glow, which is never a good sign. The board has problems, but at least…
-
Centipede Cocktails — Cocktail #1
Well, I ended up taking two Centipede cocktails off of another local collector as a package deal. Still want that Gorf, though… Will have to come back to that one soon! But I digress… So I have two Centipede cocktails here. One of them has a dead monitor (and a non-working board, I later discovered),…
-
Sprint 2 – Stiff Steering and Hard Shifting
Problem: Stiff spinning steering modules and hard shifting between gears (Quick little story – while bringing this beast into its location, I fell and got pinned under it for a few minutes. It is amazing how much having your chest compressed effects your ability to call out for help! 🙂 OK – onto the next…
-
Unknown Atari Kangaroo Board
Atari Kangaroo – After watching the attract mode for a little bit (~30 seconds), the game started to show some visual artifacts on the RHS of the screen. They were horizontal blurbs that looked like multicolor static. However, each of the blurbs, while in a random vertical location, were identical.