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 Forum index » DIY Hardware and Software » Circuit Bending
what am i doing wrong??? I KEEP KILLING TOYS :(
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loss1234



Joined: Jul 24, 2007
Posts: 1535
Location: nyc
Audio files: 41

PostPosted: Sat Sep 08, 2007 12:45 pm    Post subject: what am i doing wrong??? I KEEP KILLING TOYS :( Reply with quote  Mark this post and the followings unread

OK. I have recently gotten into bending and diy electronics. But i seem to be having more luck with building things than bending things.

Here is the problem:

I have been using the the bend where you find the clock resistor, and you connect it to a potentiometer so you can slow it down or speed it up.

And I am sometimes using alligator clips to test this. Sometimes soldering the pot in place.

Well I have now killed FOUR TOYS trying to add a potentiometer. What am I doing wrong?

I have been using 1meg pots or 50k pots. I connect one end to one end of the resistor and one end to the other. usually what happens is everything speeds up or slows down for a minute or so and THEN IT DIES>


ON TWO TOYS, IT STILL LIGHTS UP, BUT NO SOUND!!!

ONE OF THEM, I TRIED RE-CONNECTNG TO A NEW SPEAKER THINKING I HAD BLOWN THE OLD ONE< AND ALL I GOT WAS PITCHED STATIC!!!


wow. what am i doing that is killing all these great v-tech, fisher price, etc,toys?


thanks for any help.
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BILDOZER



Joined: Nov 06, 2007
Posts: 18
Location: Houston

PostPosted: Wed Nov 07, 2007 4:56 am    Post subject: Reply with quote  Mark this post and the followings unread

I killed my Speak & Read...15 minutes after I put batteries in it. Sad I was just probing with my alligator clips. Maybe I need a "What not to do" guide for circuit bending.
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loss1234



Joined: Jul 24, 2007
Posts: 1535
Location: nyc
Audio files: 41

PostPosted: Wed Nov 07, 2007 5:33 am    Post subject: Reply with quote  Mark this post and the followings unread

i've since learned only to probe with resistors at the end of my alligator clips. i usually start with a 5k. EVEN when i am already using a pot i put a 5k at the end of the clip to avoid shorting things.

you might not have killed it. try shorting the caps or shorting some connections.

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-------------------------------------------- check out various dan music at: http://www.myspace.com/lossnyc
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Luka



Joined: Jun 29, 2007
Posts: 1002
Location: Melb.

PostPosted: Wed Nov 07, 2007 9:59 pm    Post subject: Reply with quote  Mark this post and the followings unread

i just mentioned this in the other thread, also work out where the power supply is and avoid that area.

you can go deeper and research the chips and work out where to tweak them also

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melbourne australia
http://cycleofproblems.blogspot.com/
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