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

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Thread

Re: 2101: Memory problem

Re: 2101: Memory problem

2002-02-09 by Dieter Waechter

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
Show quoted textHide quoted text
> > > 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@...
> =====================================================================

Re: 2101: Memory problem

2002-02-09 by Dieter Waechter

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
Show quoted textHide quoted text
> >>> 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@...
> > =====================================================================
>
> ====================< 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@...
> =====================================================================

Re: 2101: Memory problem

2002-02-11 by Gary Williams

Hey Dieter, by caps do you mean capacitors?

Thanks,

Gary

Date: Sat, 9 Feb 2002 10:03:42 +0100
Show quoted textHide quoted text
From: "Dieter Waechter" <pirat28@...>
Subject: Re: 2101: Memory problem

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 Follows----
From: gsp-2101@yahoogroups.com
Reply-To: gsp-2101@yahoogroups.com
To: gsp-2101@yahoogroups.com
Subject: [gsp-2101] Digest Number 81
Date: 9 Feb 2002 19:20:15 -0000

To unsubscribe from this group, send an email to:
gsp-2101-unsubscribe@egroups.com


------------------------------------------------------------------------

There are 3 messages in this issue.

Topics in this digest:

       1. Re: 2101: Memory problem
            From: "Dieter Waechter" <pirat28@...>
       2. Re: Control One questions
            From: "Dieter Waechter" <pirat28@...>
       3. Re: 2101: Memory problem
            From: "Dieter Waechter" <pirat28@...>


________________________________________________________________________
________________________________________________________________________

Message: 1
    Date: Sat, 9 Feb 2002 10:01:32 +0100
    From: "Dieter Waechter" <pirat28@...>
Subject: Re: 2101: Memory problem

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@...
 > =====================================================================



________________________________________________________________________
________________________________________________________________________

Message: 2
    Date: Sat, 9 Feb 2002 09:59:27 +0100
    From: "Dieter Waechter" <pirat28@...>
Subject: Re: Control One questions


   ----- Original Message -----
   From: Maarten van Helden
   To: 2120@...-dod.com ; 2101@...-dod.com
   Sent: Friday, February 08, 2002 3:04 PM
   Subject: 2101: Control One questions


   Short questions for those who know  (Dieter?):

   1. Does anyone know what type of switches the C1 uses?. Are they 
momentary or latching.

   Yes- they are momentary and type is 4x11.5x11.5 mm 4 pin- button

   2. Could these (with some mods ofcourse) be replaced with a "real" 
stompswitch. Like the switches you see on the J12, Ground Control Pro, All 
Access, Bradshaw? If so which type? SPST? Any chance of using a stompswitch 
that "clicks", instead of the "clickless" one in the J12.

   yes - but you need another housing for the FC1

   3. How does the internal expression pedal work? Just like a volume pedal 
with a pot, or is it light responsive?

   No- there is a LED mounted on the pedal. and an photo transistior an the 
board... when you press the pedal forward, the LED moves nearer to the 
transistor. The value is read out by the INTEL- processor.
   I'll soon will write an FC1- upgrade page... Software and so on...




   THANX GUYZ.

   Maarten

   ps I'm trying to figure out if I can improve the C1.

   ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
   [sk;rl]: Temporary loss of or impairment
   to movement or mental processes akin
   to mild paralysis. Though sk;rl may
   manifest itself in many forms, typically
   a sufferer loses ability to track time
   and perform menial tasks.

   <www.skirl.nl>
   ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
   Digital Art <http://welcome.to/mvh>
   Guitar Gear <www.vanhelden.demon.nl/gear>
   sk;rl -m\ufffd-sick- <www.skirl.nl>
   ::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::



[This message contained attachments]



________________________________________________________________________
________________________________________________________________________

Message: 3
    Date: Sat, 9 Feb 2002 10:03:42 +0100
    From: "Dieter Waechter" <pirat28@...>
Subject: Re: 2101: Memory problem

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
 > >
 > >
 > > ====================< 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@...
 > =====================================================================



________________________________________________________________________
________________________________________________________________________



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Re: [gsp-2101] Re: 2101: Memory problem

2002-02-12 by Dieter Waechter

Yes- capacitors.

----- Original Message -----
From: "Gary Williams" <garynwilliams@...>
To: <gsp-2101@yahoogroups.com>
Sent: Monday, February 11, 2002 1:34 AM
Subject: [gsp-2101] Re: 2101: Memory problem


> Hey Dieter, by caps do you mean capacitors?
>
> Thanks,
>
> Gary
>
> Date: Sat, 9 Feb 2002 10:03:42 +0100
> From: "Dieter Waechter" <pirat28@...>
> Subject: Re: 2101: Memory problem
>
> 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 Follows----
> From: gsp-2101@yahoogroups.com
> Reply-To: gsp-2101@yahoogroups.com
> To: gsp-2101@yahoogroups.com
> Subject: [gsp-2101] Digest Number 81
> Date: 9 Feb 2002 19:20:15 -0000
>
> To unsubscribe from this group, send an email to:
> gsp-2101-unsubscribe@egroups.com
>
>
> ------------------------------------------------------------------------
>
> There are 3 messages in this issue.
>
> Topics in this digest:
>
>        1. Re: 2101: Memory problem
>             From: "Dieter Waechter" <pirat28@...>
>        2. Re: Control One questions
>             From: "Dieter Waechter" <pirat28@...>
>        3. Re: 2101: Memory problem
>             From: "Dieter Waechter" <pirat28@...>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 1
>     Date: Sat, 9 Feb 2002 10:01:32 +0100
>     From: "Dieter Waechter" <pirat28@...>
> Subject: Re: 2101: Memory problem
>
> 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@...
>  > =====================================================================
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 2
>     Date: Sat, 9 Feb 2002 09:59:27 +0100
>     From: "Dieter Waechter" <pirat28@...>
> Subject: Re: Control One questions
>
>
>    ----- Original Message -----
>    From: Maarten van Helden
>    To: 2120@...-dod.com ; 2101@...-dod.com
>    Sent: Friday, February 08, 2002 3:04 PM
>    Subject: 2101: Control One questions
>
>
>    Short questions for those who know  (Dieter?):
>
>    1. Does anyone know what type of switches the C1 uses?. Are they
> momentary or latching.
>
>    Yes- they are momentary and type is 4x11.5x11.5 mm 4 pin- button
>
>    2. Could these (with some mods ofcourse) be replaced with a "real"
> stompswitch. Like the switches you see on the J12, Ground Control Pro, All
> Access, Bradshaw? If so which type? SPST? Any chance of using a
stompswitch
> that "clicks", instead of the "clickless" one in the J12.
>
>    yes - but you need another housing for the FC1
>
>    3. How does the internal expression pedal work? Just like a volume
pedal
> with a pot, or is it light responsive?
>
>    No- there is a LED mounted on the pedal. and an photo transistior an
the
> board... when you press the pedal forward, the LED moves nearer to the
> transistor. The value is read out by the INTEL- processor.
>    I'll soon will write an FC1- upgrade page... Software and so on...
>
>
>
>
>    THANX GUYZ.
>
>    Maarten
>
>    ps I'm trying to figure out if I can improve the C1.
>
>
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
>    [sk;rl]: Temporary loss of or impairment
>    to movement or mental processes akin
>    to mild paralysis. Though sk;rl may
>    manifest itself in many forms, typically
>    a sufferer loses ability to track time
>    and perform menial tasks.
>
>    <www.skirl.nl>
>
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
>    Digital Art <http://welcome.to/mvh>
>    Guitar Gear <www.vanhelden.demon.nl/gear>
>    sk;rl -m\ufffd-sick- <www.skirl.nl>
>
::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
>
>
>
> [This message contained attachments]
>
>
>
> ________________________________________________________________________
> ________________________________________________________________________
>
> Message: 3
>     Date: Sat, 9 Feb 2002 10:03:42 +0100
>     From: "Dieter Waechter" <pirat28@...>
> Subject: Re: 2101: Memory problem
>
> 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.
Show quoted textHide quoted text
>  > >>> 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@...
>  > > =====================================================================
>  >
>  > ====================< 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@...
>  > =====================================================================
>
>
>
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> ________________________________________________________________________
>
>
>
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