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Marshall Kilburn Main Speaker Replacement

Introduction

Issues with the sound quality of the speaker can be resolved using this guide. Since screws can get loosened and mess up the sound quality, the speaker can be tightened or replaced by following this guide. It is very important to remember to unplug the device before attempting to replace the main speaker.

What you need

  1. Marshall Kilburn Main Speaker Replacement, Battery: step 1, image 1 of 2 Marshall Kilburn Main Speaker Replacement, Battery: step 1, image 2 of 2

    • Place the unit face down as shown in the picture, exposing the battery cover.

    • Remove the two 4.0mm long screws holding the cover on using a T10 driver.

    Edit

  2. Marshall Kilburn Main Speaker Replacement: step 2, image 1 of 1

    • Remove the battery cover using a fingernail or nylon spudger.

    Edit

  3. Marshall Kilburn Main Speaker Replacement: step 3, image 1 of 1

    • Remove the battery and unplug the power lead.

    Edit

  4. Marshall Kilburn Main Speaker Replacement, Power Switch: step 4, image 1 of 3 Marshall Kilburn Main Speaker Replacement, Power Switch: step 4, image 2 of 3 Marshall Kilburn Main Speaker Replacement, Power Switch: step 4, image 3 of 3

    • Place speaker as shown in image and remove the four corner 45.5mm back cover screws with a Phillips #2 driver.

    • Using a Phillips #2 driver, remove the six remaining 21.5mm outer back cover screws.

    Edit

  6. Marshall Kilburn Main Speaker Replacement: step 5, image 1 of 2 Marshall Kilburn Main Speaker Replacement: step 5, image 2 of 2

    • Remove the back cover by using the vent hole as a grip.

    • Gently pull out the back cover and let it hang on the side of the speaker that has the knobs and power switch.

    • Unplug the main power lead from the control board; this allows the back to be opened more, allowing easy access to the power switch.

    Edit

  7. Marshall Kilburn Main Speaker Replacement: step 6, image 1 of 3 Marshall Kilburn Main Speaker Replacement: step 6, image 2 of 3 Marshall Kilburn Main Speaker Replacement: step 6, image 3 of 3

    • Pull the back cover attached to the motherboard to the side as shown in first image.

    • Remove the white insulator from the stereo speaker and place it to the side.

    Edit

  8. Marshall Kilburn Main Speaker Replacement: step 7, image 1 of 2 Marshall Kilburn Main Speaker Replacement: step 7, image 2 of 2

    • Place the speaker up right, and unscrew the golden bolt around the power switch with your hands, or a wrench.

    • Gently pull out the power switch as shown in the image.

    Edit

  9. Marshall Kilburn Main Speaker Replacement: step 8, image 1 of 3 Marshall Kilburn Main Speaker Replacement: step 8, image 2 of 3 Marshall Kilburn Main Speaker Replacement: step 8, image 3 of 3

    • Use a slim spudger to wedge out the four red wires attached to the power switch.

    Edit

  10. Marshall Kilburn Main Speaker Replacement, Main Speaker: step 9, image 1 of 3 Marshall Kilburn Main Speaker Replacement, Main Speaker: step 9, image 2 of 3 Marshall Kilburn Main Speaker Replacement, Main Speaker: step 9, image 3 of 3

    • Unscrew the eight 22.5mm screws of the speaker cover and the device using a Phillips #2 screwdriver.

    • Gently push the speaker cover out of the stereo speaker.

    • Make sure to slowly push out the speaker cover, and not too far because it is still connected to the stereo speaker.

    Edit

  11. Marshall Kilburn Main Speaker Replacement: step 10, image 1 of 3 Marshall Kilburn Main Speaker Replacement: step 10, image 2 of 3 Marshall Kilburn Main Speaker Replacement: step 10, image 3 of 3

    • Disconnect the blue wires connected to the tweeter.

    • Disconnect the yellow wires connected to the main speaker.

    • Disconnect the red wires connected to the second tweeter.

    Edit

  12. Marshall Kilburn Main Speaker Replacement: step 11, image 1 of 2 Marshall Kilburn Main Speaker Replacement: step 11, image 2 of 2

    • Unscrew the four 13.5mm screws connecting the main speaker to the speaker cover, with a Phillips #2 screwdriver.

    Edit
Conclusion

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

2 other people completed this guide.

6 Comments

Google search doesn’t give many results for replacement speakers. Where did you get your replacement speaker? Thanks.

texasbluezman - Reply

I am looking for the replacement Speaker as well

Sean G - Reply

The device page has a couple of references that could help you find purchasing information on The Marshall Kilburn.

Jeff Feuss - Reply

I’m also looking for the replacement speaker. Jeff Feuss, you mentioned the “device page,” but I’m not sure where this is (I just joined this site). I get the point of “ifixit,” but I’m ready to call in some help on the repair at this point. I’m going on a year of trying to get my speaker back in working condition. I’ve tried the third party location where I purchased it, BestBuy (wouldn’t service it), and a local electronics repair company. Marshall has been absolutely no help; they only service the Kilburn (1st gen) at the center in England. However, they require the originating address to be in England (won’t return the speaker outside of England). I’m currently seeking friends that live in England. :-)

Julian Philip Cunningham - Reply

im after a mainboard if someone wants to sell me theirs

andrew graham - Reply

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