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Bank switch freezes polaris

Bank switch freezes polaris

2016-02-16 by fuse@...

Hi,

Has anyone had this? When you switch banks the polaris freezes. But you can select programs in the bank that is selected. You can use midi program change though.
And when powered up the polaris doesn't always fully boot which may be related to the power being too low so you have to adjust the power regulator for that.

Cheers


RE: [chromapolaris] Bank switch freezes polaris

2016-02-16 by Paul D. DeRocco

> From: fuse@...
> 
> Has anyone had this? When you switch banks the polaris 
> freezes. But you can select programs in the bank that is 
> selected. You can use midi program change though.
> And when powered up the polaris doesn't always fully boot 
> which may be related to the power being too low so you have 
> to adjust the power regulator for that.

When does the freeze occur, when you press the letter, or when you press
the subsequent number? Do all the other switches on the right side of the
panel work normally?

-- 

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@...

RE: [chromapolaris] Bank switch freezes polaris

2016-02-17 by Wouter Veltmaat

Hi Paul,

It stalled after pushing a bank button.
Besides switching it on did stall most of the time as well. Guess some part
in the power circuit is acting up.

After having opened the unit and pushed on some ICs and hooked it up to the
power again it blew a fuse.
So I guess I have to get it looked at by a professional. (Which I'm clearly
not)
Hopefully he can fix my mistake.
Show quoted textHide quoted text
> -----Original Message-----
> From: chromapolaris@yahoogroups.com
> [mailto:chromapolaris@yahoogroups.com]
> Sent: woensdag 17 februari 2016 0:48
> To: chromapolaris@yahoogroups.com
> Subject: RE: [chromapolaris] Bank switch freezes polaris
> 
> > From: fuse@...
> >
> > Has anyone had this? When you switch banks the polaris freezes. But
> > you can select programs in the bank that is selected. You can use
> midi
> > program change though.
> > And when powered up the polaris doesn't always fully boot which may
> be
> > related to the power being too low so you have to adjust the power
> > regulator for that.
> 
> When does the freeze occur, when you press the letter, or when you
> press the subsequent number? Do all the other switches on the right
> side of the panel work normally?
> 
> --
> 
> Ciao,               Paul D. DeRocco
> Paul                mailto:pderocco@...

RE: [chromapolaris] Bank switch freezes polaris

2016-02-17 by Bob Grieb

Hi,

    Of course Paul D is the expert here.  I had an idea that I wanted
to throw out:

   If the reset threshold is not set correctly, could the supply dip enough when the CPU 
gets busy responding to some button push to cause reset to glitch on?
Maybe not long enough to reset the CPU but long enough to mess it up?
Does that make any sense?

     Bob

--------------------------------------------
On Wed, 2/17/16, 'Wouter Veltmaat' fuse@... [chromapolaris] <chromapolaris@yahoogroups.com> wrote:
Show quoted textHide quoted text
 Subject: RE: [chromapolaris] Bank switch freezes polaris
 To: chromapolaris@yahoogroups.com
 Date: Wednesday, February 17, 2016, 8:06 AM
 
 Hi Paul,
 
 It stalled after pushing a bank button.
 Besides switching it on did stall most of the time as well.
 Guess some part
 in the power circuit is acting up.
 
 After having opened the unit and pushed on some ICs and
 hooked it up to the
 power again it blew a fuse.
 So I guess I have to get it looked at by a professional.
 (Which I'm clearly
 not)
 Hopefully he can fix my mistake.
 
 > -----Original Message-----
 > From: chromapolaris@yahoogroups.com
 > [mailto:chromapolaris@yahoogroups.com]
 > Sent: woensdag 17 februari 2016 0:48
 > To: chromapolaris@yahoogroups.com
 > Subject: RE: [chromapolaris] Bank switch freezes
 polaris
 > 
 > > From: fuse@...
 > >
 > > Has anyone had this? When you switch banks the
 polaris freezes. But
 > > you can select programs in the bank that is
 selected. You can use
 > midi
 > > program change though.
 > > And when powered up the polaris doesn't always
 fully boot which may
 > be
 > > related to the power being too low so you have to
 adjust the power
 > > regulator for that.
 > 
 > When does the freeze occur, when you press the letter,
 or when you
 > press the subsequent number? Do all the other switches
 on the right
 > side of the panel work normally?
 > 
 > --
 > 
 > Ciao,           
    Paul D. DeRocco
 > Paul             
   mailto:pderocco@...
 
 
 
 ------------------------------------
 Posted by: "Wouter Veltmaat" <fuse@...>
 ------------------------------------
 
 
 ------------------------------------
 
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RE: [chromapolaris] Bank switch freezes polaris

2016-02-17 by Paul D. DeRocco

> From: Bob Grieb
> 
>    If the reset threshold is not set correctly, could the 
> supply dip enough when the CPU 
> gets busy responding to some button push to cause reset to glitch on?
> Maybe not long enough to reset the CPU but long enough to mess it up?
> Does that make any sense?

Yes, that's a common problem with the early power supplies. Which is why
there is a later rev of the supply that doesn't have a reset threshold
adjustment.

That wouldn't explain the blown fuse, but it's worth looking at anyway, if
the supply is the old one with the three trimmers.

-- 

Ciao,               Paul D. DeRocco
Paul                mailto:pderocco@...

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