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

It's difficult to find out the right hardware- version.
An exact document will be on my new homepage (under construction)
1. There is a sticker on the right side of the 2101. There you can find out
the manufacturing date. Tell it to me.
2. Look at the board- how many eproms are there?
3. What was the original software version?
4. Original Cycle-frequency of the Z 80- processor.

If you answer that questions we can specify the harware.

Dieter


----- Original Message -----
From: "Reg" <reg@...>
To: "Dieter Waechter" <waechter.dieter@...>
Sent: Saturday, December 01, 2001 3:22 AM
Subject: Re: 2101: Schematics for GSP 2101


> Dieter,..
> would love to have sceme's for my rig, how does one tell the hardware
version?

>
> At 11:08 AM 11/30/01 +0100, you wrote:
> >My Collection of GSP 2101 Schematics is complete now.
> >There are 42(!) different hardware- versions of the 2101.
> >mailto: waechter.dieter@... for questions.
> >
> >Dieter
> >
> >
> >
> >====================< DigiTech 2101 Users Group >====================
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>

Hi!

My website isn't online, yet.... a lot of work and litte time... sorry..
have patience...

About the valve- distortion... it's no problem for me to repair it... but
via email it's difficult to explain how to fix the problem... do you know
which hardware-version you've got?... you should first check the heating-
voltage (Vh = 12,6 V DC on pin 4 and 5 of the valves)  (or look at the
valves... does the heaters glow red???).... and than... the plate - voltage
(+B = approx. 350 V on C252).... and than...you said no output , if you
switch to ANY(!) valve distortion (clean, dist, sat. tube), right.... then
check the signal on pin 1 of U6 (this is the output of the OP which goes
directly to pin 2 of V1 ... it's the input signal to the valve-
section)..... tell me the results and we can go further.

D.

----- Original Message -----
From: "Chris Geske" <geskec@...>
To: "Dieter Waechter" <waechter.dieter@...>; "Reg" <reg@...>;
"GSPGroup1" <gsp-2101@yahoogroups.com>; "GSPGroup2b"
<2101@...-dod.com>; "GSPGroup3" <GSP2101@yahoogroups.com>
Sent: Monday, December 03, 2001 5:53 PM
Subject: RE: 2101: Schematics for GSP 2101


> Dieter:
>
> Couple questions for you:
>
> 1.)  Where is your website?
>
> 2.)  I have a 2101 that has no output when using a tube distortion.  I've
> switched the tubes with no resolve.  Any ideas.  The solid state
distortion

> works fine, but whenever I turn on the tubes, nothing at the output.
>
> Chris Geske
> LIMS Manager
> Northern Lake Service, Inc.
> email: lims@...
> phone: 715-478-2777
>