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Ice Tube Clock Boost Circuit not working
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Ice Tube Clock Boost Circuit not working

by lipidsnake on Fri Jun 27, 2014 12:16 am

I am getting 9V from bottom pin of IC3 and 5V from top pin, but when I measure D3 I get a strange reading. The voltage steadily goes from 0 to 0.4V and then goes back to 0 and cycles again. Does beep when I plug it in.
Photo of my soldering is attached.

Thank you in advance!
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Re: Ice Tube Clock Boost Circuit not working

by adafruit_support_bill on Fri Jun 27, 2014 5:42 am

Please post a photo of the top-side as well.

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Re: Ice Tube Clock Boost Circuit not working

by lipidsnake on Fri Jun 27, 2014 7:35 pm

Sorry here it is
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Re: Ice Tube Clock Boost Circuit not working

by adafruit_support_bill on Sat Jun 28, 2014 5:14 am

We need to see more detail around the boost circuit so we can verify correct placement of the components. Please post a closer view that clearly shows Q2 and the surrounding components.

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Re: Ice Tube Clock Boost Circuit not working

by lipidsnake on Sat Jun 28, 2014 5:54 am

Is this fine?
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Re: Ice Tube Clock Boost Circuit not working

by adafruit_support_bill on Sat Jun 28, 2014 6:32 am

Thanks. That is much clearer.

when I measure D3 I get a strange reading. The voltage steadily goes from 0 to 0.4V and then goes back to 0 and cycles again.

How fast does the voltage cycle?

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Re: Ice Tube Clock Boost Circuit not working

by lipidsnake on Sat Jun 28, 2014 8:22 am

Okay now its reading a steady 0.6V..
I was still cycling when I tried a few hours ago. It was pretty slow, around 10-15 seconds per cycle
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Re: Ice Tube Clock Boost Circuit not working

by adafruit_support_bill on Sat Jun 28, 2014 8:56 am

Oh. Looks like you have not installed the inductor yet. (L1). You need that to complete the boost circuit.

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Re: Ice Tube Clock Boost Circuit not working

by lipidsnake on Sat Jun 28, 2014 9:46 am

OHH sorry for such a dumb post haha. Thank you for your help :)
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