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Yamaha CS80

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Re: [yamahacs80] Doing some repair work on CS-80 1459

2008-11-25 by rj krohn

2. Voice 3 on Channel 2 is outputting only noise instead of a saw/square. Sine is working 

well.

when i had this problem, it was a bad VCO chip(153?). sine and noise are not generated there. easiest way to tell is to swap the chip out for a working voice-be careful! the legs on those types of chips are easy to bend putting them in and out of sockets. good luck-rj
 
	 
	
	








	


	
	


      

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