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How to Repair a Fluke 12 Multimeter

Many hobbyists and professional electronic repair technicians use multimeters. Multimeters are devices that allow a user to measure voltage, current and resistance on an electronically controlled item. The user places a set of test leads across a pair of wires or electronic components. As a result, the multimeter displays the needed measured value. Fluke offers a Series 12 multimeter that is useful for both amateur and professional applications. However, the Fluke 12 may require repair if it malfunctions.

Things You'll Need

Multimeter
Flathead screwdriver
Phillips-head screwdriver

Instructions

- 1
  Turn over the Fluke 12 to expose the bottom. Remove the screws from the bottom assembly with the Phillips-head screwdriver.
- 2
  Pull the top and bottom cover assemblies away from one another. Do not pry the two pieces apart with force. Carefully jostle the two pieces until they separate.
- 3
  Visually inspect the internal components. Replace any parts that are cracked or worn, such as a broken LCD or cracked switch assembly.
- 4
  Note any odor emanating from the Fluke's interior. An unpleasant scent will be emitted if the PCB (printed circuit board) has a scorched area.
- 5
  Gently lift the PCB from the top assembly with a flathead screwdriver. Small plastic snaps hold the PCB to the assembly. Use care during removal to prevent any damage to the securing snaps.
- 6
  Confirm that the entire PCB is free from burned areas, damaged components or even missing components. A burned PCB requires replacement rather than repair. However, missing or damaged components, such as capacitors, can be replaced individually. Desolder any damaged components and solder new components into the board.

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