Snoopy Hallmark toy, not moving [Looking for datasheet of SC4057]
I’m trying to fix a Snoopy Hallmark toy, it looks like this
The idea is that Snoopy is meant to rock back and forth to the music, using a magnetic coil and some magnets embedded in the base.
I have opened up the toy and checked the connectivity of the coil and there are no breaks in the coil, the circuit board status also looks fine, no burns or marks, plus it still plays the music and “talks” to the other toys (it sends out a radio signal so that all the other toys play in sync with the music)
Looking up the toy online I was able to find a schematic here, which matches up perfectly. https://fccid.io/SQ9XKT1000/Schematics/C...
Doing a little bit of additional sleuthing with an oscilloscope, I was also able to determine that there are pulses happening on lines T9 and T10, so I suspect that the SC4057 chip is not working in some way.
However I’m unable to find this chip online and I don’t really know what this chip does, I’m hoping that someone know the datasheet for the chip or figure out what it does.
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