Polk Magnifi Soundbar Motherboard Replacement Repair Guide

Difficulty

Moderate

Steps

Time Required

                          20 - 40 minutes

Sections

The Motherboard
4 steps

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Introduction

What you need

Step 1

              The Motherboard

To begin, remove the 8 screws locating on the back of the soundbar. These can be removed with the ifixit screwdriver equipped with a Phillips’head in size J1.
The cover will lift up, but there will be wires underneath connected to the cover that need to be unscrewed.
The 8 screws on the back cover, as well as the screws removed in the following steps, are all the exact same length (approx. 1 centimeter). Keep track of all screws but do not worry if they become mixed up.

To begin, remove the 8 screws locating on the back of the soundbar. These can be removed with the ifixit screwdriver equipped with a Phillips’head in size J1.

The cover will lift up, but there will be wires underneath connected to the cover that need to be unscrewed.

The 8 screws on the back cover, as well as the screws removed in the following steps, are all the exact same length (approx. 1 centimeter). Keep track of all screws but do not worry if they become mixed up.

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Step 2

Remove the two screws using the Phillips #1 screwdriver. Once they are unscrewed, the panels will hang loose allowing unobstructed access to the motherboard.

Remove the two screws using the Phillips #1 screwdriver. Once they are unscrewed, the panels will hang loose allowing unobstructed access to the motherboard.

Step 3

Remove the three sets of wires plugged into the motherboard (image 1). These are removed by gripping the base of the wire firmly and pulling straight up.
Unscrew and remove the four screws (two on either side) to release the motherboard from the rest of the soundbar (Images 2 & 3).

Remove the three sets of wires plugged into the motherboard (image 1). These are removed by gripping the base of the wire firmly and pulling straight up.

Unscrew and remove the four screws (two on either side) to release the motherboard from the rest of the soundbar (Images 2 & 3).

Step 4

Now that the soundbar is unscrewed, carefully lift the motherboard up and remove the wire attached to the underside of it. To do this firmly grasp the wires at the base (image 1) and pull them straight up.
The motherboard is now completely detached.
This component is fragile, and this step needs to be done carefully.

Now that the soundbar is unscrewed, carefully lift the motherboard up and remove the wire attached to the underside of it. To do this firmly grasp the wires at the base (image 1) and pull them straight up.

The motherboard is now completely detached.

This component is fragile, and this step needs to be done carefully.

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

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luism60613 - Jul 3, 2020

Where do you buy the motherboard?

klwalker1965 - Aug 15, 2020

Where do you buy the mother board?

Todd Guenther - Aug 16, 2020

Where do you buy a replacement motherboard? ???

LL Poffo - Jan 21, 2021

Same question- where do you buy the replacement motherboard?

Tim - Apr 16, 2021

I need a motherboard - where do I purchase it?

Introduction#

What you need#

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Introduction

What you need