Bc2000 (for the BCF2000 & BCR2000)

Hello to all,
 I put a few photos in newsgroups that explain an mod I made in my
bcf2000, concerning encoder groups switch
Who had the need to remotely via midi that switches can use a switch
led to another.I used a optotransistor TLP521 and an electrolytic
capacitor 100uF for each switch.I hope that the images are clearer,
compared to my English.