3638Re: Studio II schematics?
- May 1 9:07 PMOk,
I'll get to the Studio II schematic in a minute but I have to say
I really lucked out!
I picked up a STG ELF-2K for a very good price from a chap that built
it recently with an old ceramic CDP1802 CD. As it turns out, I could
not have purchased the parts & partial kit for less than what I paid.
It had nothing to do with me being clever. I was all but ready to go
to Bob's site and order the parts when I saw this one on ebay and bid
what I figured was too low but... What the heck. I didn't even stay up
to watch the end of the auction. I didn't think I stood a chance of
getting it. Low and behold, I got it. It wasn't me it was just dumb
luck and so here I have sitting in front of me an STG Elf2K and it's
just so darn cool!
It's kinda similar to my Quest Elf and also a little similar to the
Elf II I used to have but I know deep inside of it there's a bunch of
more Ram, Expansion and a serial port. The fellow who built it also
burned a ROM with ELF 2K Ver23 (I think?). I've got some learning to do.
Now, I have to get the STG1861 replacement and of course the COSMAC
Elf 2000 disk (CompactFlash), UART, Clock and Non-Volatile RAM
expansion option. (I wish I had this while you were beta testing it.)
I'm already working on the HEX Keypad which I'll add
Bob, I've been drooling over the Elf2K since I first saw it on your
site back in December but to actually switch it on is another story.
This puppy rocks!
* RCA STUDIO II *
I have a diagram of the Studio II. It isn't detailed and really is a
block diagram. I'll scan it when I have a moment and upload it. It's
part of that document I mentioned earlier about Converting a studio
into a microcomputer.
This is really neat document from March 3 1979 and I will scan it in
entirety as soon as I can so that it can be added to the site.
--- In email@example.com, "erd_6502" <erd_6502@y...> wrote:
> --- In firstname.lastname@example.org, "awasson2001" <andrew@l...> wrote:
> > Hi Ethan,
> > Have you checked the RCA modulator for a faulty switch or leaky
> > etc..? If your Studio II is in fairly good shape, that's where I'd
> > look first.
> I have not opened the RF switchbox, if that's what you mean (the
> modulator would be built into the main board, under the RF shield).
> Its switch does turn the unit on and off, but I'm not going to swear
> that it's working perfectly.
> I'll start there; thanks for the tip.
> > I've got some Studio stuff coming this weekend (Sunday) including
> > set of plans for extending it as a micro computer (sort of). It's
> > possible there's a set of schematics as well. I'll post whatevewr
> Nice. I've heard of those plans and I've always wanted to see
> Can't wait.
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