Yamaha CS80

i have noticed that i only seem to get double triggers on black keys. i have cleaned the contacts on all the keys as well as i can. for me, it SEEMS to be related to the fact that the weight disbursement is different on the black keys, as they have less mass on the key side than white keys. 

do you have a particular method of cleaning that worked wonders on this?



erikfromhere <moogsynthex@...> wrote:                             In my experience, double triggering occurs mostly when releasing a key. 
 I think releasing a key takes a bit more time than pressing a key 
 during normal playing. At a certain point, there's a moment the right 
 spring-leave stops touching it's upper contact spring and a fraction of 
 a key-movement later it touches it again. This can be caused by a dirty 
 contact-surface, or the contact surfaces have blind spots, one or both 
 of the right spring-contacts are a bit tordated etc.
 
 Till now, I am able to reduce double triggering by cleaning the contact-
 area and some very slight bending/tordating of the 2 right contact-
 springs and checking their behavour while very slowely releasing the 
 key.
 
 In my opinion, if not all keys cause double-triggering then it's not 
 needed to modify the electronic circuity, just cure the keys that are 
 causing problems.
 
 
     
                                       

       

[Non-text portions of this message have been removed]