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

if that doesn't help change the RAM... you'll find it right to the
EPROMS....

Dieter




----- Original Message -----
From: "Marty McConnell" <martym@...>
To: "Digitech 2101 List" <2101@...-dod.com>
Sent: Friday, February 08, 2002 4:57 PM
Subject: Re: 2101: Memory problem


> Thanks Mark,
> I didn't think of that.  It's probably very likely that's the case.  The
electronics
> get warmed up and cooled quite often and with my ADA and Mesa 50/50 in the
same
> case, there's quite a bit of heat generated.  The memories are fine for a
while, so
> I think I'll take a look at the sockets.  I've had plenty of experience
with a
> soldering iron.  I'll try that this weekend.
>
> Alexandre,
> I'll keep that in mind.  I don't know when I might get a Triaxis, and the
longer I
> can keep the 2101 hobbling along, the better chance I'll have of just
going and
> buying a G-Force or something like that too.
>
> Marty
>
> Mark Bratcher wrote:
>
> > Marty,
> >
> > A common problem in electronics is a case in which solder joints form
fine,
> > hairline cracks which then behave intermittently, often depending upon
whether
> > the circuit is warmed up. (You can't see the cracks except with a
magnifier.)
> > This is particularly the case for areas of a circuit that get warm, such
as the
> > area in the GSP-2101 at or around the three power transistors.
> >
> > What I'd suggest is that perhaps the memory (DRAM) is OK, but just needs
to have
> > the solder reflowed. You (or someone you trust with a soldering iron)
should
> > reheat each solder joint for the DRAM just to reflow it and that may
cure the
> > problem. Although it's probably tedious to do so, I'd also do the SRAM
(U74) and
> > the power transistors.
> >
> > I did this operation on an old RP-1 that I had as it would sometimes
behave very
> > erratically and it cleared up the problem. Even made an LED work that
was
> > previously failing.
> >
> > I don't think the memory is bad since I believe if it were bad, then it
would
> > consistently not work.
> >
> > Mark
> >
> > --
> > Mark Bratcher
> > ---------------------------------------------------------
> > Escape from Microsoft's proprietary tentacles: use Linux!
> >
> > Marty McConnell wrote:
> >
> > > Hey guys,
> > > I thought I'd see if anyone here know of this problem.  Recently my
2101
> > > (LE w/ Artist upgrade) started freaking out upon power up.  I could
> > > switch through the presets from 100 - 250, but couldn't access any of
> > > the user presets (the foot controller wouldn't work either -- I use
the
> > > Johnson J12 controller).  And when I turned the wheel to my user
> > > settings, I would get some kind of "unknown parameter" error (not sure
> > > of the exact error - I'm at work right now and don't have my 2101
> > > handy).  The only thing I can do is a factory reset.  It's like the
user
> > > memory was getting corrupted.  I replaced the back up battery just a
few
> > > weeks ago and everything seemed fine, 'til last night.  The night
before
> > > I was jamming with some guys, and it worked like a champ, then I left
it
> > > out in my car all night (in my garage) and last night at band
practice,
> > > it freaked on me again.  It took an hour before I could even do a
> > > factory reset.  I couldn't get the utility button to engage those
> > > options.
> > >
> > > Has anyone had memory chip problems or replaced the user memory ever.
I
> > > can't believe some mild cold would cause this thing to act like that.
> > > I'm about ready to say "good bye 2101... hello Mesa Triaxis!!"
> > >
> > > Thanks for any help...
> > >
> > > --
> > > Marty McConnell
> > >
>
> --
> Marty McConnell
>
>
> ====================< 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@...
> =====================================================================