(Topic ID: 101780)

Issue with the Opto board in my TAF

By guido

5 years ago

Topic Stats

  • 3 posts
  • 2 Pinsiders participating
  • Latest reply 5 years ago by guido
  • Topic is favorited by 1 Pinsider


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#1 5 years ago

Hi all!

The opto board in my TAF is not working properly. I’ve swapped it with an opto board from another TAF and the optos worked flawlessly.
My opto board has got sockets solded. I changed the ICs (LM339) but it didn’t sort out the problem.
Is there any way to check if the sockets are well solded to the board?

Thanks in advance

#2 5 years ago

A meter would work. Put one probe in a socket the IC leg goes into and the other probe to a solder point on a trace away from that socket you are checking.

LTG : )™

#3 5 years ago

Thanks for the answer. I supposed that but I wasn't sure if testing for continuity was enough. I have just tested it and found some bad solded points in the socket. I've resolded them and continuity now is fine. I'll check the board in a few hours.

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