I disassembled a toy truck which can move around and make sounds with some lights on wheels.
When I took out the visible screws at the bottom of the truck, the toy was divided into two pieces. The bottom part was containing all the electronical parts. The upper part was a set of some injection molded plastic peces.
The electronical parts was containing of two cips, 4 LEDs on wheels, one motor, some plastic gears , a speaker, a switch, 3 AA battery and the battery case.
The LEDs were placed inside the wheels.
The motor and the plastic gears. It was full of oil so I did not play much with it .
There were two chips. The biggest one has a code (HYOOO3B) but I couldn’t find anything on Google. Also there wasn’t any code on the smaller one.
The battery case.
Here is the all parts. I used a single screwdriwer to tear down the toy.