In my recent auction wins from a japan I received two of the EF63 sound engines and one powered engine. One of the sound cars had some corrosion on a battery terminal but appears to work. What I found was, the idle sound and coupling sound worked fine, but no sound when moving. He other unit seemed to have idle sound and sound when moving but no coupling sound.
I took a look a the one with corrosion and it appears that it leaked all he way into the switch hay controls the sound when the car moves. The other engine I have no taken apart yet but assume it is the coupling switch that has a wire disconnected.
Here are some pics:
I took a look a the one with corrosion and it appears that it leaked all he way into the switch hay controls the sound when the car moves. The other engine I have no taken apart yet but assume it is the coupling switch that has a wire disconnected.
Here are some pics: