On Thu, Oct 15, 2020, 5:24 PM Fred Cisin via cctalk <cctalk@classiccmp.org> wrote:
> On Thu, 15 Oct 2020, Sean Ellis via cctalk wrote: > > I got this (currently exploded) mystery RAM, RTC, and I/O board out of > > a dead Sanyo luggable the other night, and once I replace the burned > > up tantalums I'd like to put it in my 5150 so I can get a full 640k of > > RAM. > > Question is, does anyone know what this board is? It's a completely > > anonymous board with not even an FCC ID to go off of. I'm assuming the > > RAM is at least strapped right; all the banks are full which should be > > 384k, and the Sanyo was a 256k machine = 640k. > > Here's a couple pictures; one's an actual picture of the card and the > > other is a simplified TULARC/TH99-esque vector of what's on the board. > > https://i.imgur.com/WhO4cco.jpg > > https://i.imgur.com/uBCkv5G.png > > It resembles, although doesn't match, the AST Six-Pack. > But the AST Six-pack had a clock circuit. > Isn't the 24-pin DIP part MM58167? shown in the images referenced above a RTC chip? >
