Here's the instructions I was following.
http://www.instructables.com/id/Repair-your-FisherPrice-cradle-swing/step4/Swapping-motor-bits/
http://www.instructables.com/id/Repair-your-FisherPrice-cradle-swing/step4/Swapping-motor-bits/
But the transistor got fried before I replaced the motor. It was hot before I ever took the old motor out.Perhaps someone else can verify, but it seems your diode is in the wrong direction. This could be a reason for a fried transistor...
First, did you replace the transistor with the exact same part number?I did replace the motor. Didn't help and the transistor just kept getting hot every time I put the batteries in.
Also here's another pic. The yellow and green wires are the ones connected the motor.
The only thing I replaced was the black transistor (I don't know what a diode and capacitor are...) but I put it exactly like it was before.
...then it will be a point to remember, otherwise, you'll blow out the diode, then the transistor...But the transistor got fried before I replaced the motor. It was hot before I ever took the old motor out.
EDIT: As far as maintaining the direction, I did this a long time ago so I can't remember for sure. I followed the instructions on that website.
Perhaps someone else can verify, but it seems your diode is in the wrong direction. This could be a reason for a fried transistor...
I'm sorry... I have no idea what you just said. Haha... Does that mean I wired the diode backwards?
I don't have 4 D batteries to try it out - but what would that tell me?A Quick test would be if you disconnect the motor wire, do the transistors still get hot quickly?
Sorry, yes, flip the diode so it looks the way in the picture on the right...I'm sorry... I have no idea what you just said. Haha... Does that mean I wired the diode backwards?
But on that repair site, his pic looks just like mine... Not arguing with you, just confused. Do you think that dude did it wrong and led me astray?Sorry, yes, flip the diode so it looks the way in the picture on the right...
The silver stripe on the diode should be closest to the yellow wire.But on that repair site, his pic looks just like mine... Not arguing with you, just confused. Do you think that dude did it wrong and led me astray?
And this also doesn't explain why it got hot in the first place...
Thanks for clarifying that, sometimes, it's hard to think like someone not versed in electronics. Sorry to be dodgy on that!The silver stripe on the diode should be closest to the yellow wire.
Volunteer to help kids learn electronics/robotics. You quickly learn how to speak non-geek, and it is quite fun, if you like kids, anyway. The ones I deal with are always filtered out for aptitude, which makes it a bit easier.Thanks for clarifying that, sometimes, it's hard to think like someone not versed in electronics. Sorry to be dodgy on that!
Not a problem with you, just with my ability to communicate...
I usually deal with people further down the electronics scale, people with no knowledge of anything electronic, sans their iWhatever. I don't usually deal with talking about diodes with them...Volunteer to help kids learn electronics/robotics. You quickly learn how to speak non-geek, and it is quite fun, if you like kids, anyway. The ones I deal with are always filtered out for aptitude, which makes it a bit easier.
Nearly a deal breaker...[...]if you like kids, anyway.
Yes, but given that in other images, the yellow wire goes to Vcc through the transistor in question, I'd have to say green goes to ground...I understand why you guys think the diode is backwards. it looks that way to me, too, but I want to point out polarity markings I think I see on the motor (see attachment).
I should point out that there is no rule which forces the negative supply rail to be ground. It does seem strange that they would use a black wire on the + terminal of the motor.
Good catch, Ron!I want to point out polarity markings I think I see on the motor (see attachment).
See Step 4 of the motor swap out.I understand why you guys think the diode is backwards. it looks that way to me, too, but I want to point out polarity markings I think I see on the motor (see attachment).
I should point out that there is no rule which forces the negative supply rail to be ground. It does seem strange that they would use a black wire on the + terminal of the motor.
The picture I posted if from the OP's post #19.See Step 4 of the motor swap out.
The new motor is from a Glade auto air freshener, which uses blue/white wires for the connection.
He shows them next to each other, but one upside down, perhaps he swaps polarity so the motor will turn in the right direction? The swing itself uses the green/yellow wires to power the motor.
In other words, it's a hack rather than a direct replacement, but I don't typically put instructables very high on my "solid information sources" list.
I think that is where the confusion lies.The picture I posted if from the OP's post #19.
I'm sorta color blind. I see now that the wire that I called black is really green. In any case, I don't think our OP swapped motors, did she? It looks like the cathode of the diode on her motor connects to the + terminal of the motor (which would be correct, unless the motor is wired backwards), and to the motor case.
From the site:As far as maintaining the direction, I did this a long time ago so I can't remember for sure. I followed the instructions on that website.
The diode is pointing toward the yellow wire in the non-modified "white cap" motor, which I'm guessing is the original swing motor from what was stated.A comparison pic of the 2 motors. Left with the white cap is from the swing, right with the green is from the air freshener.
by Jake Hertz
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