Parts

No parts required.

Introduction

This teardown shows the internal circuitry of a digital multimeter.

Image 1/1:
  • Remove lead connectors from front panel.

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Image 1/3: Image 2/3: Image 3/3:
  • Turn over the DVM and unscrew the two screws using a J1 bit.

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Image 1/3: Remove three screws using J1 bit. Image 2/3: Remove three screws using J1 bit. Image 3/3: Remove three screws using J1 bit.
  • Remove battery by gently disconnecting it from connector.

  • Remove three screws using J1 bit.

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Image 1/2: Microprocessor Image 2/2: Continuity Check Speaker
  • Remove PCB by gently pulling it away from the back encasing.

  • Microprocessor

  • Continuity Check Speaker

  • Fuse

  • 9 V Battery Connector

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Image 1/3: The measurement knob uses two ball bearings that allows the knob to rotate.  These bearings are small and easy to lose. Image 2/3: Backlight Toggle Button Image 3/3: Measurement Hold 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.

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Finish Line

Michael

Member since: 01/23/2014

341 Reputation

2 Guides authored

Team

Cal Poly, Team 10-32, Maness Winter 2014 Member of Cal Poly, Team 10-32, Maness Winter 2014

CPSU-MANESS-W14S10G32

4 Members

6 Guides authored

One Comment

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

Oliver Watson - Reply

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