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상점

소개

This teardown shows the internal circuitry of a digital multimeter.

부품

지정된 부품이 없습니다.

  1. Remove lead connectors from front panel.
    • Remove lead connectors from front panel.

  2. Turn over the DVM and unscrew the two screws using a J1 bit. Turn over the DVM and unscrew the two screws using a J1 bit. Turn over the DVM and unscrew the two screws using a J1 bit.
    • Turn over the DVM and unscrew the two screws using a J1 bit.

  3. Remove battery by gently disconnecting it from connector. Remove three screws using J1 bit. Remove three screws using J1 bit.
    • Remove battery by gently disconnecting it from connector.

    • Remove three screws using J1 bit.

  4. Remove PCB by gently pulling it away from the back encasing. Microprocessor
    • Remove PCB by gently pulling it away from the back encasing.

    • Microprocessor

    • Continuity Check Speaker

    • Fuse

    • 9 V Battery Connector

  5. Remove the knob and buttons from the front grey casing. The measurement knob uses two ball bearings that allows the knob to rotate.  These bearings are small and easy to lose. Backlight Toggle Button
    • Remove the knob and buttons from the front grey casing.

    • The measurement knob uses two ball bearings that allows the knob to rotate. These bearings are small and easy to lose.

    • Backlight Toggle Button

    • Measurement Hold Button

    • LCD Plastic Cover

    • Measurement Select Knob

    • Measurement Select Knob Ball Bearings

    • Success! You have finished tearing down the multimeter.

결승점

Michael

회원 가입일: 2014년 01월 23일

362 평판

안내서 2개 작성하였습니다

Cal Poly, Team 10-32, Maness Winter 2014 Cal Poly, Team 10-32, Maness Winter 2014 회원

CPSU-MANESS-W14S10G32

4 회원들

안내서 6개 작성하였습니다

Don't take the contacts out of the rotary dial. It's very easy to forget where they go

Oliver Watson - 답글

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