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Inleiding

For our reverse engineering project, we chose to use the smoke detector. This smoke detector consists of a sensor to detect smoke and a loud electronic buzzer to alert people within the building.

Deze demontage is geen reparatiehandleiding. Om je Gas and Smoke Detector te repareren, gebruik onze reparatiehandleidingen.

  1. Use a screwdriver to pry open the plastic enclosure. It might be easier to push the buzzer through the hole, if you need extra leverage. Use a screwdriver to pry open the plastic enclosure. It might be easier to push the buzzer through the hole, if you need extra leverage.
    • Use a screwdriver to pry open the plastic enclosure. It might be easier to push the buzzer through the hole, if you need extra leverage.

  2. The buzzer is unhooked from the PCB board, by hands.
    • The buzzer is unhooked from the PCB board, by hands.

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  4. This is the circuit for the smoke detector. It is powered by a 9V battery. The 3 metal leafs are contacts for the buzzer and the bigger leaf is for the test button. This is the circuit for the smoke detector. It is powered by a 9V battery. The 3 metal leafs are contacts for the buzzer and the bigger leaf is for the test button.
    • This is the circuit for the smoke detector. It is powered by a 9V battery. The 3 metal leafs are contacts for the buzzer and the bigger leaf is for the test button.

  5. The metal cap is removed to reveal a, MC145017, driver chip and americium sensor. Do not remove americium from the sensor!
    • The metal cap is removed to reveal a, MC145017, driver chip and americium sensor. Do not remove americium from the sensor!

Ari Dubinsky

Lid sinds: 04-03-14

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