Introduction

If your in-line amplifier has stuck or sticky volume wheels then it may need to be cleaned.

Image 1/2: Open the amplifier by using the smaller plastic opening tool. Place it in the headphone jack and use leverage to pry open the plastic halves. Image 2/2: Be aware of the small plastic cylinder that braces the headphone jack.
  • Remove the 4 screws from the inline amplifier using a #6 torque screwdriver head. The screws measure 1/4" long and 3/32" in diameter.

  • Open the amplifier by using the smaller plastic opening tool. Place it in the headphone jack and use leverage to pry open the plastic halves.

    • Be aware of the small plastic cylinder that braces the headphone jack.

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Image 1/2: Using a cloth dipped in isopropyl rubbing alcohol, clean the affected scroll wheels. Image 2/2: 90-100% isopropyl alcohol is preferred for cleaning.
  • Remove the circuit board from the plastic housing and flip it so that you can see the scroll wheels.

  • Using a cloth dipped in isopropyl rubbing alcohol, clean the affected scroll wheels.

    • 90-100% isopropyl alcohol is preferred for cleaning.

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Image 1/3: The scroll wheels should be facing the housing with the logo and labels, and should slide onto the 4 screw holes. Image 2/3: Make sure the plastic headphone jack brace is in position. Image 3/3: Position the wire in the slot on the other side of the amplifier, ''it should slide down onto the housing and become fixed.''
  • When done cleaning, place the circuit board back in the plastic housing.

    • The scroll wheels should be facing the housing with the logo and labels, and should slide onto the 4 screw holes.

    • Make sure the plastic headphone jack brace is in position.

    • Position the wire in the slot on the other side of the amplifier, it should slide down onto the housing and become fixed.

  • Close the housing with the other plastic half. It will click into place.

  • Replace the 4 screws using the #6 torque screwdriver.

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Conclusion

To reassemble your device, follow these instructions in reverse order.

James de Iturrondo

Member since: 03/18/2015

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