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RE: [tracker2] To ProtoB Owners - Picture of parts close to 2211

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  • 'Scott Miller'
    Double-check the solder joints on the audio input path. I managed to miss one of the jumper pins once, and couldn t figure out why I wasn t getting anything
    Message 1 of 4 , Mar 26, 2007
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      Double-check the solder joints on the audio input path.  I managed to miss one of the jumper pins once, and couldn't figure out why I wasn't getting anything demodulated.
       
      Scott


      From: tracker2@yahoogroups.com [mailto:tracker2@yahoogroups.com] On Behalf Of P. Suryono Adisoemarta
      Sent: Saturday, March 24, 2007 8:37 AM
      To: tracker2@yahoogroups.com
      Subject: Re: [tracker2] To ProtoB Owners - Picture of parts close to 2211


      --- Mike Fenske <mfenske@telus. net> wrote:

      >
      > Paulus: I added a photo of the 2211 on my proto B to
      > the "Proto-B & Max232" album. Note that I changed C1
      > from 0.1uF to 0.01uF.

      Mike, appreciate the quick help. Part placement looks
      the same. I've double-checked the parts, and also the
      solder job (making sure no cold solder and/or
      bridges). Now I am leaning on the possibility that I
      might have a defective 2211 chip.

      Thanks,
      Paulus N5SNN

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