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

Thanks a lot Dieter!

Cheers,
Filip

--- In gsp-2101@yahoogroups.com, "Dieter Waechter" <dieter@...> wrote:
>
> I forgot:
> check the 5V supply (at voltage regulator) inside the C1 for voltage
instability.
> 
> Dieter
> 
> 
> 
>   ----- Original Message ----- 
>   From: Dieter Waechter 
>   To: gsp-2101@yahoogroups.com 
>   Sent: Wednesday, August 13, 2008 9:39 AM
>   Subject: Re: [gsp-2101] Control One Pedal problem
> 
> 
>   Hi!
>   a) replace the LED on the small PCB on the metal sheet monted on
the pedal.
>   b) check the wires to the LED
>   c) check if it happens if you shake or drop the C1 (contact
problem or 
>   screws on pedal loose)
>   d) fasten the pedal screws
>   e) check the shutter box. Is it installed correctly?
>   f) measure the brightness-continuosity of the LED - difficult! you
need to 
>   install a second foto-transistor and close the case
>   g) check the foto-transistor (voltmeter)
> 
>   Dieter
> 
>   ----- Original Message ----- 
>   From: woboguitarelectronics
>   To: gsp-2101@yahoogroups.com
>   Sent: Wednesday, August 13, 2008 9:17 AM
>   Subject: [gsp-2101] Control One Pedal problem
> 
>   Hello,
> 
>   I have posted this problem back on July 29th, but no one have
>   answered, so I thought no one get my message and decided to post
it again.
> 
>   I've got a following problem with my C1 controller.
> 
>   When I use the footswitch for activating particular preset then the
>   unit "remembers" the state of the expression controller (instead of
>   the value stored in the preset parameters) and for e.g. the volume
>   increases to the full level while the presets are set to match the
>   level between the presets. I opened the controller and clean the dust,
>   I have done a complete reset of the GSP2101 and the problem persist.
>   It does not happen all the time and I think (but I'm not sure) that
>   not all of the presets reacts in this way. Lets say that when I change
>   continuously between two presets then half time the volume matches the
>   position of the footswitch instead of the written value. I also tried
>   to connect an external expression pedal and the problem still has been
>   present with a use of external pedal instead of the built-in one.
> 
>   My unit is 3.00a/20 MHz, PPC installed. I have never experienced such
>   problem before. Some time ago the whole unit has crashed and the hard
>   reset was needed. The unit was then serviced and setup according to
>   the information from Dieter's page (test procedures).
> 
>   Before I have had a controller that was worn a lot and I have recently
>   replaced it with the controller in as new condition. The controller
>   worked fine for 2 months and recently the problem appeared.
> 
>   Could you please advice?
> 
>   Cheers,
>   Filip
>