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正翻译步骤 15

步骤 15
Here are a couple views of the receiver circuit board. You can see the IR optical receiver under the large clear plastic lens. It's not obvious from the photos, but the cylindrical lens has a deeply concave front.
  • Here are a couple views of the receiver circuit board.

  • You can see the IR optical receiver under the large clear plastic lens. It's not obvious from the photos, but the cylindrical lens has a deeply concave front.

  • Once again, we notice mostly discrete components. The single IC in an 8 pin DIP package is a 2300B optocoupler chip.

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