(Topic ID: 272823)

Flash audio hum


By DennisT

6 months ago



Topic Stats

  • 13 posts
  • 6 Pinsiders participating
  • Latest reply 5 months ago by DennisT
  • Topic is favorited by 2 Pinsiders

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#4 6 months ago

there are two causes- ac on the dc line which you can check with a dmm and bad caps which is pretty much the same thing- 1- make sure your game has a 3 prong plug that is wired right- make sure the gnd straps are all connected- unplug volume knob as they go bad and cause this- most likely- recap your boards- ac hum comes from bad caps= not just sound board but all boards need new caps

#5 6 months ago

hum is ac over dc

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