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Subject: Re: [chromapolaris] Polaris after 15 seconds get all stopped like frozen

From: sukhoy27@...
Date: 2014-08-26

Dear Paul ,
thank You for very fast answer !
The frozing effect appears not immediately but gradually !
As You suggest It should Be the EPROM ( It's also possible that the EPROMs are fading, since they're 30 years old )
So I'll look forward to find good EPROM and rewrite the binary code into , downloading from the web site .
Today in fact I LowerFunction+D+12+STOP > and tune all, and Polaris start playing perfectly.

Probably because eprom reset ?

I'll also replace all Power Supply capacitors ( with new one 100° or 63V ), and re misure all the voltage outgoing !

I'll look after for uP at the end of the job.

Thank You very much Paul for Great efforts !!!

Ciao

Mario

From: Bob Stewart bob@... [chromapolaris] <chromapolaris@yahoogroups.com>;
To: chromapolaris@yahoogroups.com <chromapolaris@yahoogroups.com>;
Subject: Re: [chromapolaris] Polaris after 15 seconds get all stopped like frozen
Sent: Tue, Aug 26, 2014 6:05:17 AM

 

Sound like you might have a processor issue. Had a similar issue with a Roland JP6 recently, and needed a new processor chip.


:-(

On Tuesday, August 26, 2014, sukhoy27@... [chromapolaris] <chromapolaris@yahoogroups.com> wrote:
 

Dear Paul , 

                   Please May you help me to understand why my Polaris , when turn on, after 15/20 sec it became frozen, and all push buttons do not respond , it seems that the sliders works good , when it start to froze! 

This froze , start with last note continuing to play , and then if I try to change memory / patch the push buttons starts slightly not to respond , till everything stop, and even all push buttons don't respond ! 

Few days ago VCO 1 played with a fast glide , and I ordered a new chip CEM3374 . 

I really do not know what to do ! Please May you give me some advice ?


Ciao


Mario