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Old 01-21-2016 | 05:03 PM
  #293  
cutting42
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Joined: Mar 2013
Posts: 261
From: London UK
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Originally Posted by cutting42
Hi Howard

My decoder build is progressing well and I have knocked up a couple of PT's as well and have a couple of questions before I take the PT to my local track on Thursday.

Is the LED supposed to come on with power or during operation?

Does the J1 pin 1 going to GP4 do anything or was it potentially a remote control feature?

Thanks
Hmmm, not a peep from the PT at racing tonight. I have built up two and they both did not work. Any tips where to start fault finding Howard please?
I guess start with 5v supply then the signal from the crystal and track the PIC ip/op and gates.
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