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CS-80 Oscillator not turning off in panel mode (or memory settings)

CS-80 Oscillator not turning off in panel mode (or memory settings)

2008-11-27 by Heath Finnie

I mentioned that one of the problems that has me stumped on the CS-80 I'm working on is 
that in channel one's panel mode the oscillators will not turn off. Everything else seems to be 
working in panel mode, noise, filter, envelope, etc. I also tested it in the memory section and 
if I select a patch there and turn both oscillators off with the little mini selectors they still 
sound. This leads me to believe that it is something more global since it is both in the 
memory selectors and the panel mode. In panel mode for channel two they work as they 
should. Any ideas?

Re: [yamahacs80] CS-80 Oscillator not turning off in panel mode (or memory settings)

2008-11-27 by rj krohn

my best guesses are A)a multiplexer chip that is responsible for reading those switches, or B) an opamp that powers one of those chips. i recently had this problem on a cs40, and the opamp that powers one of the YM617's was down. good luck. 

--- On Thu, 11/27/08, Heath Finnie <heathfinnie@...> wrote:
Show quoted textHide quoted text
From: Heath Finnie <heathfinnie@...>
Subject: [yamahacs80] CS-80 Oscillator not turning off in panel mode (or memory settings)
To: yamahacs80@yahoogroups.com
Date: Thursday, November 27, 2008, 11:18 AM










    
            I mentioned that one of the problems that has me stumped on the CS-80 I'm working on is 

that in channel one's panel mode the oscillators will not turn off. Everything else seems to be 

working in panel mode, noise, filter, envelope, etc. I also tested it in the memory section and 

if I select a patch there and turn both oscillators off with the little mini selectors they still 

sound. This leads me to believe that it is something more global since it is both in the 

memory selectors and the panel mode. In panel mode for channel two they work as they 

should. Any ideas?




      

    
    
	
	 
	
	








	


	
	


      

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