Assembled kit doesn't work

by lencho on Tue Sep 25, 2012 5:38 am

Hi,
I've just built my TVBgone 1.2 from the kit and it doesn't work.
The led test didn't work either.
I've attached photos of both sides, the soldering is pretty clean and I don't know what could be wrong.
I didn't put the switch and LEDs all the way in because I want to move them in a custom case, but they are fixed and soldered.
By the way, I wanted to replace the switch with another off(on) switch and read it could just be connected through two holes for the switch, the ones closer to the "+" of the batteries, is this correct?
Thanks in advance for your advices.
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Re: Assembled kit doesn't work

by adafruit_support_bill on Tue Sep 25, 2012 10:13 am

The led test didn't work either.

Which of the LED tests didn't work? Does the green LED blink when you press the reset button?
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Re: Assembled kit doesn't work

by lencho on Thu Sep 27, 2012 2:27 pm

No, the green LED didn't blink, I still assembled the rest according to the instrucitons on the site to see if that worked, but it didn't.
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Re: Assembled kit doesn't work

by mpeg2 on Thu Sep 27, 2012 2:44 pm

On the bottom side view, one of the leads for the transistor doesn't appear to be soldered correctly?? It may be an optical illusion, but there doesn't seem to be a solder connection to the pad.

Rich
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Re: Assembled kit doesn't work

by adafruit_support_bill on Thu Sep 27, 2012 3:10 pm

No, the green LED didn't blink

The likely causes are:
1) the green led is reversed (can't really tell from the photo)
2) the microcontroller is not functioning.

Double check the green led orientation. Typically, there is a flat section on the edge at the base of the plastic near the negative lead.
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Re: Assembled kit doesn't work

by lencho on Fri Sep 28, 2012 4:57 am

Thanks for your reply,
The LED is in the right position and I also tested with another LED actually, just to be sure.
What can I do if the microcontroller isn't working properly?
Thank you.
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Re: Assembled kit doesn't work

by adafruit_support_bill on Fri Sep 28, 2012 5:40 am

Contact support@adafruit.com with a link to this thread and ask for a replacement TV-B-Gone processor.
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Re: Assembled kit doesn't work

by adafruit_support_rick on Fri Sep 28, 2012 7:28 am

You might also check that you have the right transistor in Q5. Can't really tell from the picture, but the case on Q5 looks like the cases on Q1, Q2, and Q3. Q4 looks different from the other four. Make sure Q4 and Q5 aren't swapped.
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Re: Assembled kit doesn't work

by lencho on Sat Sep 29, 2012 4:39 am

Hello,
Thank you for taking the time to look at this. The transistors are correct, they all look the same except from what's written on the back, and Q5 is the right one (PN2907), the other four are the same (PN2222).
I will contact support.
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Re: Assembled kit doesn't work

by lencho on Fri Oct 26, 2012 4:05 pm

Hello,
I received a replacement microcontroller and the kit now works perfectly, so problem is solved. Thanks very much for your help, I really appreciate your support.
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Re: Assembled kit doesn't work

by adafruit_support_rick on Fri Oct 26, 2012 4:07 pm

You're welcome! Glad to hear it's working for you :D
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