Schematic "Kissing Doll Coin Bank" Toy, Circa 1970, Japan.
The toy arrived disassembled, the cables were not identified, the PCB has no additional identification. Search Google as: "Kising Doll Bank Coin", the one I have, has a heart that lights up.
my english is a work in progress.
Actualización (01/11/19)
The mechanism has 4 switch, 3 physical and one of "coin", the problem is the set-up and synchronization between the melody, its duration and the movement of the figures.
Your English is fine. Without photos we really have no idea of how to help. Trying to find schematics on a fifty year old toy will be next to impossible.
由 mayer 完成的