@Buco posted:Once again, thank you one and all for your suggestions and help, but I need someone out there to tell me why an old EP-5 sound chip will get these loco's to work, when the original AS-616 chips, along with the brand new AS-616 chip I got from MTH last year, will not get these loco's to move.
Peter,
It appears that you, we (other consumers), and MTH have a software problem with the AS-616 sound chips. Period.
Unfortunately it's quite likely that a replacement purchased from MTH wouldn't work any better. It seems to me that the software code needs to be tweaked to fix this problem, and that in the time between designing the AS-616 and the EP-5 someone at MTH did so for the EP-5 code but didn't return to the AS-616 to fix it as well.
It would be very rare if your existing chip has had one or more of its bits permanently flipped randomly, in the time since it was manufactured, causing this issue. It does happen however. Oddly enough it can occur if hit by a stray cosmic ray from outer space, which I have encountered in the real world, but these are rare.
Mike
