Introduction

Sometimes the moving about of computer speakers leads to broken wires and the speakers will fail to work properly. This guide will show you how to repair a Harman Kardon CN-04N567-48220 external computer speaker.

Image 1/3: Pull the bottom of the grill away from the speaker enclosure and then completely remove the grill. Image 2/3: Four posts attach the grill assembly to the front of speaker enclosure. These posts are located on the back side of the grill assembly. Image 3/3: Four posts attach the grill assembly to the front of speaker enclosure. These posts are located on the back side of the grill assembly.
  • Use your fingers to pull the top of the speaker grill away from the speaker enclosure.

  • Pull the bottom of the grill away from the speaker enclosure and then completely remove the grill.

    • Four posts attach the grill assembly to the front of speaker enclosure. These posts are located on the back side of the grill assembly.

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Image 1/2: Remove the two 9.5 mm Phillips #1 screws located below the speaker screws. Image 2/2: Slowly work your way around the seam until the two parts of the enclosure are free.
  • Remove the top two 9.5 mm Phillips #1 screws from the speaker.

  • Remove the two 9.5 mm Phillips #1 screws located below the speaker screws.

  • Slowly work your way around the seam until the two parts of the enclosure are free.

    • More speaker cable slack may be achieved by pulling additional cable through the rear of the case.

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Image 1/2: This step is to avoid making a mechanical repair (re-soldering the wires to the PCB) on a piece of equipment that also has obvious electrical or mechanical issues. Image 2/2: This step is to avoid making a mechanical repair (re-soldering the wires to the PCB) on a piece of equipment that also has obvious electrical or mechanical issues.
  • Inspect both sides of the printed circuit board (PCB) for any raised traces, off-colored areas, or loose components.

    • This step is to avoid making a mechanical repair (re-soldering the wires to the PCB) on a piece of equipment that also has obvious electrical or mechanical issues.

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Image 1/1: Do not leave solder bridges across the pads as this will cause functional issues.
  • Use desoldering braid and a soldering iron to wick away the old solder and wire remnants from the solder pads and through-holes.

    • Do not leave solder bridges across the pads as this will cause functional issues.

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Image 1/2: Use a soldering iron and solder to tin the wires.  This prevents the strands from fraying. Image 2/2: Use a soldering iron and solder to tin the wires.  This prevents the strands from fraying.
  • Use wire strippers to remove a small section of insulation from the wires.

  • Use a soldering iron and solder to tin the wires. This prevents the strands from fraying.

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Image 1/2: Insert the bare ground wire into the through-hole marked "G". Image 2/2: Insert the white wire into the through-hole marked "L".
  • Insert the yellow wire into the through-hole marked "R".

  • Insert the bare ground wire into the through-hole marked "G".

  • Insert the white wire into the through-hole marked "L".

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Image 1/1:
  • Use the soldering iron to flow solder between each wire and its solder pad.

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Image 1/1: Route the cable inside the enclosure to avoid stressing the solder joints.
  • Reassemble the two parts of the enclosure making sure that the PCB-mounted audio jacks are lined up with the mating holes of the rear enclosure.

    • Route the cable inside the enclosure to avoid stressing the solder joints.

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Conclusion

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

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Ken Gage

Member since: 06/09/2016

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Texas Tech, Team 3-1, Rauch SU 2016 Member of Texas Tech, Team 3-1, Rauch SU 2016

TTU-RAUCH-SU16S3G1

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