I have a kcs sd 70 that I've been working on and need some help with. The problem is when I power the track the sound comes on in what sounds like the RPM's increasing and that's all the sound does. When you key the loco code in the loco continues to do this and you cannot control the sound. Horn, tower sounds, bell,etc do not work at all. The rpm sound just firing up is all. Also,smoke will not work along with a host of other odd symptoms such as the loco speeding up if you depress nearly any key on the handheld. Now, if you remove the sound board all is well except the sound doesn't work,of course. The loco runs correctly and smoke works fine.
I have put a new sound board to no avail. I sent the chip set in to be tested. Lionel says it's good. I don't know which way to go before sending it in. Even though I sent the chip set in and it was said to be good I'm not so sure. Anyway thanks for any help.
