Electronics Doll Repair
This article is about a not so common repair of a Dancing Dog. This very funny Doll was recently found at our 17 March past away father’s attic. Sadly it should sing the very famous “I’m singin’ in the rain” song.
But it now only danced by tapping its left feet and moving its Umbrella from left to right at the same time. My brothers wife immediately thought of it as the ideal gift for one of her daughters (my little niece). And my brother asked me to have a look why the Doll didn’t play any music anymore as it used to.
Previous Photo shows the inside view of this funny Doll with its visual 2 DC Motors and one very small 16 Ohm 0.25 Watt Speaker. The Small Board inside was controlled by an unknown under plastic hidden IC that had 12 Tracks that connected to all of the components. As it turned out both the 2 Blue Wires that were attached to the Speaker had a perfect audio signal when tested with an Audio Tracker device when one Tracker Wire was connected to Battery GND. Which means that only the Speaker had to be defect. And after I had removed this 0.25W very small Speaker by loosen the 2 Screws it indeed was an open connection.
The Doll was operated from three 1.5 Volt Batteries connected to the Board by the Red (+4.5V) and Black (GND) Wires. And the inside Electronics can be reached by removing 4 screws on the outside of the white plastic half of the box in which also the Battery compartment is held.
I didn’t have such a small Speaker between my repair parts laying around. So I used the smallest 16 Ohm Speaker I could find that also still would fit into the white Box Case.
Next photos show the magnet of the removed original bad Speaker, and the Replacement model 16 Ohm Speaker I used. The replacement I used was an equal same model as shown but still smaller. And also had a 0.25 Watt Speaker instead of the here shown 1.5 Watt model.
Previous Photos also showed the Board and how the Wires were connected inside the Doll.
After the Doll was repaired and dancing and loudly singing again, I sneaked onto my Brother’s Home Front door, placed the activated dancing and loud singing Dog on the ground. Rang the Doorbell and fast hide to see the surprised face of my other Niece while she opened the door.
Another repair that this time also was a remembrance to our dear Father (and Mother). I hope reading this was an entertaining repair.
By-the-way: The Funny Dog starts playing after the switch in his left upper leg is pressed.
Albert van Bemmelen, Weert, The Netherlands.
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Note: You can read his previous repair article in the below link: