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

Hello again,
I replaced the regulators with no luck, with the new trio the unit
behaves exactly the same. I think it must be a bad contact somewhere
near the Z80, SRAM and firmware chips, because if I touch over these
chips with a finger and bend a little the PCB board, the unit hangs.

It can't be a corrupted settings issue because sometimes the unit
shows strange chars immediately after power on. I took two pictures:

http://img205.imageshack.us/img205/3073/pa290002lm0.jpg

http://img205.imageshack.us/img205/729/pa290003ci2.jpg

What should I do?

Greetings and thank you again for your support.


--- In gsp-2101@yahoogroups.com, "Nestor" <darkmanzgz@...> wrote:
>
> Today the unit locked up, auto rebooted and then the midi assignments
> were corrupted. I'll replace the voltage regulators this week.
> 
> Thanks for the advice Sean!
> 
> 
> --- In gsp-2101@yahoogroups.com, "krazydog" <krazydog@> wrote:
> >
> > Nester if you have similar issues again, it could be your voltage
> regulators.
> > They tend to go after awhile. They went on mine & I experienced the
> same problems but eventually even worse.
> > Heat seemed to be the enemy as I used to keep a fan blowing on the
> unit which helped but it was only a Band-Aid solution.
> > After I changed out the voltage regulators, the unit runs as new
> with no fan needed.
> > 
> > Cheers
> > Sean
> > 
> >   ----- Original Message ----- 
> >   From: Nestor 
> >   To: gsp-2101@yahoogroups.com 
> >   Sent: Saturday, October 25, 2008 7:40 AM
> >   Subject: [gsp-2101] Re: Stability issues
> > 
> > 
> >   Hello again,
> >   after upgrading the unit with a PPC-210 (bought from second hand
> >   market , but it's a Dieter card) the issues seem to be corrected.
> >   Perhaps the 3.00 firmware is not 100% stable without the PPC
expansion
> >   installed?
> > 
> >   Anyway, thank you for the suggestions.
> >   Greetings from Spain.
> > 
> >   --- In gsp-2101@yahoogroups.com, "Graham Pearson" <me@> wrote:
> >   >
> >   > Hello Nestor:
> >   > 
> >   > Nobody can be sure exactly what is wrong with your unit. So try
> >   some easy and inexpensive fixes first:
> >   > 
> >   > A. Perform a factory reset.
> >   > 1.. Power off your 2101
> >   > 2.. Press and hold function (access) key [1] while powering on
> >   your 2101
> >   > 3.. Wait until the asterisk * appears in the top-left corner of
> >   the display
> >   > 4.. Release function key [1]
> >   > 5.. Press the Program Up button to complete the Factory Reset
> >   > B. Replace the battery (button cell) with a new CR2032 or
> equivalent.
> >   > 
> >   > C. Clean the DATA wheel contacts, using an aerosol electrical
> >   contact cleaner. Squirt the aerosol into any holes in the DATA wheel
> >   and then rotate the wheel randomly until the spray has evaporated.
> >   > 
> >   > If none of these steps rectifies the problem, I suggest you return
> >   your GSP-2101 to a repair center or to DigiTech in Sandy, Utah. 
> >   DigiTech has always been very reasonable about repairing their
> >   discontinued products.
> >   > 
> >   > I hope this helps. Please let us know how you get your unit up and
> >   running again.
> >   > Graham
> >   > 
> >   > 
> >   > 
> >   > ----- Original Message ----- 
> >   > From: Nestor 
> >   > To: gsp-2101@yahoogroups.com 
> >   > Sent: Tuesday, July 29, 2008 5:12 AM
> >   > Subject: [gsp-2101] Stability issues
> >   > 
> >   > 
> >   > Hello group,
> >   > this is my first post since I joined the community. First of
all, I
> >   > must excuse about my English because is not my mother language
(I'm
> >   > from Spain).
> >   > 
> >   > I purchased a second hand GSP-2101 some months ago from guy in a
> local
> >   > guitar gear forum. I received the unit without the top cover,
> with no
> >   > tubes and the tube retainers where missing. Except that, the
unit is
> >   > functional, but it "locks" randomly when changing presets
using the
> >   > wheel, entering / exiting the tuner, sending midi controls or
> storing
> >   > changes to memory. These locks only affect to the control
chip, the
> >   > unit doesn't react at any button (except power, of course) but the
> >   > preamp and the algorithm keep working. Sometimes, after the
hang up
> >   > the unit will not power up correctly, showing strange
characters in
> >   > the screen after boot up, but turning off and waiting some minutes
> >   > makes rid of this problem.
> >   > 
> >   > Any clue of what makes this strange behaviour?
> >   > 
> >   > Regards,
> >   > Nestor.
> >   >
> >
>