Mailist to discuss all issues regarding the Digitech GSP-2101 Guitar FX Processor

OK...
on my homepage there will be a schematic for my home-made eprom-programmer
and a special 2101- burning - software.
I'm working on a version which is not so comlex as mine.... (I use that
programmer for every kind of eprom. It has a controller wiht my own software
on it)

EPROM-Types:
Don't forget: There are 2 types of motherboards: The oler one with 2 EPROMS,
the newer one with 1 EPROM.

For the 2- EPROM-version you need: 2 pcs. EPROMs "27C2001" (it's the same as
"27C020"), Be careful- use one with rating better than 150 ns !!!! Important
!(if you are not sure order them from me)

For the 1- EPROM-version you need: 1 pcs. EPROM "27C4001", Be careful- use
one with rating better than 150 ns !!!! Important !(if you are not sure
order it from me)

At the 2101 you find different types... but always erasable EPROMS wit 2 MB
or 4 MB. (the described two versions)

Dieter


----- Original Message -----
From: "Rod Smith" <rodsmith@...>
To: "Mark Shapiro" <shapiro@...>; "BC" <bchilders@...>; "RW"
<RWfromNJ@...>; <2101@...-dod.com>
Sent: Sunday, November 18, 2001 1:06 AM
Subject: Re: 2101: Re: Looking for a 2101


> FYI. I checked. My firmware chips are v3.00 and I expect them to be the
> latest, because I purchased them with a PPC-210 a year or so after the
2101
> went out of production.
>
> Mark, if you can't find any, it may be possible to have them duplicated
from
> a known good set - I used to build EPROM programmers (but mine only did up
> to 28 pin chips, these are 32 pin). The ones I checked had the paper label
> over the chip label/pn info, so I don't know which exact part they are,
> unless it's 27C020-15 - does anyone know the generic  PN? I expected them
to
> be non-erasable EPROMS (that is, EPROMS without the UV erase window). But
> maybe they are FLASH EPROMS. They are for sure not EEPROMS (way too
> expensive). If I knew the generic PN, maybe I could get the tech data on
> that chip and see what would be involved in duplicating, and if it is
easily
> possible to modify one of my old programmers, in which case I think I'd
dup
> you a set, if needed.
>
> Rod
>
> ----- Original Message -----
> From: Mark Shapiro <shapiro@...>
> To: BC <bchilders@...>; RW <RWfromNJ@...>;
> <2101@...-dod.com>
> Sent: Saturday, November 17, 2001 10:16 AM
> Subject: 2101: Re: Looking for a 2101
>
>
> > Is there a 3.01 out ?  I guess I missed that.
> >
> > I am in desperate need of a set of 2101 firmware (any version) as my
2101
> > went bad and I'm suspecting the eeproms. I've checked just about
> everything
> > else.
> > If anyone has a set of old firmware I'd sure appreciate it, and be happy
> to
> > pay any shipping costs, or pick it up (I'm in the LA area)
> >
> > Thanks,
> > Mark
> >
> > ----- Original Message -----
> > From: "BC" <bchilders@...>
> > To: "RW" <RWfromNJ@...>; <2101@...-dod.com>
> > Sent: Saturday, November 17, 2001 7:33 AM
> > Subject: 2101: Looking for a 2101
> >
> >
> > > I'm in the market for a dual S-DISC 2101 with the3.01 firmware. Anyone
> > > looking to sell one? E-mail me privately.
> >
> > ====================< DigiTech 2101 Users Group >====================
> > |  To Post Messages to Group...        TO: 2101@...
> > |
> > |  To UNSUBSCRIBE, email...            TO: majordomo@...
> > |                                 MESSAGE: unsubscribe 2101
> > |
> > |  To Access MESSAGE ARCHIVES...       TO: majordomo@...
> > |            (e.g. 2000,Jan)      MESSAGE: get 2101 21010001
> > |
> > |  To Report Problems...               TO: 2101-owner@...
> > =====================================================================
> >
>
> ====================< DigiTech 2101 Users Group >====================
> |  To Post Messages to Group...        TO: 2101@...
> |
> |  To UNSUBSCRIBE, email...            TO: majordomo@...
> |                                 MESSAGE: unsubscribe 2101
> |
> |  To Access MESSAGE ARCHIVES...       TO: majordomo@...
> |            (e.g. 2000,Jan)      MESSAGE: get 2101 21010001
> |
> |  To Report Problems...               TO: 2101-owner@...
> =====================================================================