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

This is another problem... the caps become dry over the years.
You must meassure the hum- value (on the supply- voltages) ... and change
the caps.

Dieter


----- Original Message -----
From: "Pessimist" <pess666@...>
To: "Marty McConnell" <martym@...>; <2101@...-dod.com>
Sent: Friday, February 08, 2002 5:55 PM
Subject: Re: 2101: Memory problem


> Someone mentioned cold being a problem -- have experienced this twice (of
> course at a gig) upon power up, the 2101 unable to pass signal for almost
1
> hour. -- was not having the display problems you mentioned though, and was
> fine once the unit warmed up (had to borrow gear for the gig). Upon
sending
> it to the factory, it checked out fine --
>
> Just for the record, I put the 2101 to the test vs. the
Triaxis.....needless
> to say I still prefer the 2101 -- then again, I prefer the grunge dist.
> settings over the tube tones....triaxis didn't have enough gain, until you
> turn it up then it gets too muddy....a bit pricey too at $1400.
>
>
> --
> PESSIMIST
> http://www.pessimist.com
>
>
> > From: Marty McConnell <martym@...>
> > Reply-To: Marty McConnell <martym@...>
> > Date: Fri, 08 Feb 2002 09:57:38 -0600
> > To: Digitech 2101 List <2101@...-dod.com>
> > 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
> >
> >
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