Marshall Stanmore II Power Switch Replacement

Introduction

This guide is intended to replace the power switch assembly in the Marshall Stanmore II Bluetooth Speaker.

The power switch turns the speaker on or off while it is plugged into a wall outlet. Over time, the power switch may break or wear down after normal use. This renders the speaker inoperable.

Before using this guide, ensure the speaker is plugged into a working outlet. This can be verified by plugging another device and ensuring that it works as intended. After verifying the outlet, follow the "Failure to power on" section of the Marshall Stanmore II troubleshooting page.

What you need

Step 1 Rear Panel

Marshall Stanmore II Power Switch Replacement, Rear Panel: step 1, image 1 of 2

Marshall Stanmore II Power Switch Replacement, Rear Panel: step 1, image 2 of 2

Turn off the device and unplug the cable from the wall and the speaker.
Lay the speaker with the back panel facing up on a flat, stable work surface.

Edit

Step 2

Use a Phillips #2 screwdriver to remove the ten 20.5 mm screws that secure the rear panel to the chassis.

Edit

Step 3

Carefully lift the rear panel and let it rest on an object, like a stack of books, to avoid straining the cables.
Do not attempt to fully remove the panel, as this will damage the connections inside.

Edit

Step 4 Power Switch

Marshall Stanmore II Power Switch Replacement, Power Switch: step 4, image 1 of 3

Marshall Stanmore II Power Switch Replacement, Power Switch: step 4, image 2 of 3

Marshall Stanmore II Power Switch Replacement, Power Switch: step 4, image 3 of 3

Locate the Power Switch PCB on the left-hand side above the subwoofer.
Use a Phillips #2 screwdriver to remove the two 10 mm screws that secure the PCB.
Because the space inside is somewhat cramped, consider using the iFixit 150 mm Flex Extension included in the iFixit Pro Tech Toolkit.

Edit

Step 5

Locate the PCB's black wire connector and gently disconnect it.
Do not pull on the wires.

Edit

Step 6

Marshall Stanmore II Power Switch Replacement: step 6, image 3 of 3

Pull the PCB out of the mount.
Take care not to damage the rubber seal surrounding the switch base as depicted in picture two.
Rocking the PCB back and forth while pulling may help remove the module.