I'm got my Icetube clock built last night and it didn't work:
Today I discovered in the forums here the problems people were having with the Q3, in particular the thread here:
http://forums.adafruit.com/viewtopic.php?f=41&t=54952
So I gave it a try:
and it worked:
I sent an email to [email protected] requesting a new Q3. Hope it arrives soon :)
Icetube: Digits not appearing (another bad Q3)
Moderators: adafruit_support_bill, adafruit
Please be positive and constructive with your questions and comments.
- gdonald
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- jarchie
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Re: Icetube: Digits not appearing (another bad Q3)
Nice diagnosis!
-
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Re: Icetube: Digits not appearing (another bad Q3)
Thanks for this post! Had the same problem and was wondering why it was never covered in the instructions given! Ordering another Q3 right now! =)
- adafruit_support_bill
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Re: Icetube: Digits not appearing (another bad Q3)
This issue affects a very small percentage of clocks. As a MOSFET, Q3 is a very static sensitive part.
- n2geg
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- Joined: Sun Dec 28, 2014 2:23 am
Re: Icetube: Digits not appearing (another bad Q3)
I had the same problem - I was getting a little more display than what was in your picture, so I wasn't looking at a Q3 problem. Thought I was getting a good measurement when I checked (but didn't write it down - I should have - though I think it was 4.7+ vdc...) Read through a dozen or more threads 'til I came to this one - Hey! That's MY problem, too... put in a jumper like you did & voila`! Clock works. Sent a note to the support address just now. Thanks!
- kevinsworld
- Posts: 40
- Joined: Sat Dec 27, 2014 2:22 am
Re: Icetube: Digits not appearing (another bad Q3)
I'm not near my clock to test with a jumper but I also have a clock with missing parts of the digits.... a couple of photos to show the problem.... It seems like a Q3 jumper will help rule this in or out?
Kevin
Kevin
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- jarchie
- Posts: 615
- Joined: Sun Jun 24, 2012 2:16 pm
Re: Icetube: Digits not appearing (another bad Q3)
Yep, you called it!
The symptoms you describe are common when Q3 misbehaves, so the jumper test is definitely worth a try to confirm or exclude Q3-related problems.
The symptoms you describe are common when Q3 misbehaves, so the jumper test is definitely worth a try to confirm or exclude Q3-related problems.
Please be positive and constructive with your questions and comments.