(Topic ID: 245735)

Intermittent switch problem on Firepower


By WED21

8 months ago



Topic Stats

  • 5 posts
  • 2 Pinsiders participating
  • Latest reply 7 months ago by WED21
  • No one calls this topic a favorite

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#1 8 months ago

I'm in the process of rebuilding a Williams Firepower and I've been slowly rebuilding the Driver board as a few IC's were bad on the solenoid section. After rebuilding that side, it has played great for about a month! Now I'm having an issue where several switches stop working all at once. I have traced it to the 2J3 switch row and specifically the White/Brown wire 2J3-9. There is no short anywhere in the wire and when I reseat the connector it will comeback. Sometimes if I let it just it it will also come back. Does this sound like a IC issue on the switch section of driver board? If so, I can't find the correct IC part#MN14049 Invert, Hex Buffer. The closest I can find is MC14049. I sure hope I've explained this good enough lol!!

#2 8 months ago

Have you rebuilt that connector? At least reflowed solder on the bottom?

#3 8 months ago

I have not. I will try that first this week and see if that helps. Thank you.

#4 8 months ago

Make sure the wire is pressed down into the displacement blades.

2 weeks later
#5 7 months ago

Reflowing the solder on the connector has worked for now. Still going to rebuild the switch section on the board. But at least she's back working!! Thanks!!

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