DC motor in cat toy stopped working.

David Farber · 2017-07-16T03:01:24+00:00

Here is a picture of the toy: I removed the small motor that looks about the size of a CD spindle motor. It measured around 1-2 ohms across its terminals. When I hooked it up to my bench supply with the current limiter set to 0.5 amps, the overload kept tripping. I was able to remove the motor from its case and give the brushes a good cleaning. Now the motor works fine from my bench supply but in circuit, it's still not working. I traced the circuit back to two pairs of SMD transistors. They are very hard for me to see even with my magnifiers. I think one of them has a crack in it. The only writing on the first pair is :Y1 and the other pair is marked, :Y2 Any ideas what kind of transistors or other three-terminal devices these are? Thanks for your reply. -- David Farber Los Osos, CA

Jul 16, 2017 21 Replies

Rate this thread:

tabbypurr 8 years ago

You could ask one, but IME they're inclined to be secretive.

Vote

pfjw 8 years ago

It is. This becomes particularly clear when a mother cat starts to train her kittens to hunt. First, freshly dead, then nearly dead, then undamaged prey.

Peter Wieck Melrose Park, PA

Vote

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required