
After hours of reflection, head scratching and many test, I found the problem.....Ther was short circuit between solenoïds of the wires group 1. Look at the screw, look at the wires group....and guess what could happens! It was for the 1st blow out and the second yesterday. I did'nt understand why a note could make playind a few pipes! So, I know. 6 or 7 solenoïds on the same port, it is too much. Perhaps the card can be repaired, perhaps it's a dream....I'm going to send it to J. Wale for checking, but I have not too much hope. I rather have to consider than I loose 130 euros with this litle stupidity. The fact is I'm sure the diodes are not in cause, but I'll put some on my next wind chest. After Rolcutter Rendez-Vous, an other adventure will begin!
1 Comments:
Juste un "truc" supplémentaire à propos des diodes...
Il y en a déjà dans les ULN2803, et elles sont faites pour ça: protéger les transistors des darlingtons contre les effets de self des relais qu'on branche dessus.
Donc à priori, ce n'est pas utile d'en mettre d'autres, qui seront de toutes façons bien moins efficaces pour les transistors, car bien plus éloignées.
PP
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