(Topic ID: 116159)

Tips for replacing a transistor on a SAM driver board

By DnDPins

9 years ago


Topic Heartbeat

Topic Stats

  • 19 posts
  • 10 Pinsiders participating
  • Latest reply 9 years ago by Atomicboy
  • Topic is favorited by 4 Pinsiders

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#5 9 years ago
Quoted from DnDPins:

I checked the ohms on the coil and it seems good so probably a bad transistor. 2 questions:

When you measured the pop coil ohms, what did it read?

Were all 3 pop coils the same?

I had a dead pop bumper in a BDK, and when I checked the coil, I got 6-7ohms, but the two working coils read 10-11ohms.

When I de-soldered one of the wires and measured again, the bad coil was dead open.

RM

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