Casio Collectors

I've just uploaded the memory expansion guide to the FILES section on this site. Enjoy!

Cheers, Graham



--- In casiocollectors@yahoogroups.com.au, "Graham" <gmeredith1@...> wrote:
>
> Yes, actually, they are - stinging, to be precise! I remember in my younger days when I could read a resistor stripe code...now I have to use a magnifying glass, or worse yet, take a photo of it with my digital camera and then zoom in to read it. I've resorted to using a multimeter from now on :D
> 
> Yes the SK60 is great with the expanded memory. I've now exhausted all my back supply of expansion NVRAM chips, have to scoop up some loot and buy some more. I'm thinking of just using normal SRAM chips for future expansion needs and making up a mounted coin cell holder next to the chips on the board for memory retention when the power is off/no batteries - the standard 16x SRAM chips are only a couple of dollars:
> 
> <http://www.newark.com/alliance-memory/as6c4008-55pcn/sram-4mb-2-7v-5-5v-512kx8-pdip32/dp/94M6217?Ntt=AS6C4008-55PCN>
> 
> Although the shipping is a one-off $20. Better buy up in bulk and make it worth it!
> 
> Cheers, Graham
> 
> 
> 
> --- In casiocollectors@yahoogroups.com.au, Tom Green <xman143@> wrote:
> >
> > Wow, that sounds like a lot of work - good job!  Bet your eyes are tired
> > now...  :-)
> > 
> > You're going to have one awesome machine there Graham!
> > 
> > -Tom
> > 
> > 
> > On Wed, May 8, 2013 at 2:22 AM, Graham <gmeredith1@> wrote:
> > 
> > > **
> > >
> > >
> > > OK I've just completed a 16x sample memory expansion on the SK60 - now I
> > > have 64 samples! The hardest part was making up a custom IC socket to fit
> > > the larger 16x expansion chip into the old chips PCB holes, once removed.
> > > It has a slimline variant of a 256k SRAM chip - same 28 pins, only just
> > > very narrow, like a 16 pin small chip width. I got a standard large socket
> > > to fit the new 32 pin chip, and on whole side row of pins soldered wires to
> > > them and bent them and threaded them through the holes on the PCB. A bit
> > > fiddly but works like a charm!
> > >
> > > This machine is awesome, even unbent. You should all get one!
> > >
> > > I'll make up a guide, of course, and post it up here for you all, with
> > > pics.
> > >
> > > I've also installed a line-out socket, and also a line in socket, since
> > > the SK60 has neither, only a speaker and the inbuilt microphone
> > >
> > > Cheers, Graham
> > >
> > >  
> > >
> >
>