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Definitive Technology W7 Power Supply Replacement

Introduction

This guide outlines how to replace the power supply from the Definitive Technology W7, with a model number of 093207098505. The motivation behind removing/replacing this part is that it provides power to all electrical components of the device. Symptoms of a defective power supply are the device not turning on, or the device turning off randomly. There are no potentially harmful things that can be encountered during this guide.

What you need

  1. Definitive Technology W7 Power Supply Replacement, Access Panel: step 1, image 1 of 1

    • Wedge the spudger in any of the four corners of the panel and apply downward pressure on the spudgers handle to pry the panel away from the speaker housing.

    • Repeat this procedure around the perimeter until the panel releases, then lift the panel up by hand.

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  2. Definitive Technology W7 Power Supply Replacement: step 2, image 1 of 2 Definitive Technology W7 Power Supply Replacement: step 2, image 2 of 2

    • Remove the thirteen 5 mm Phillips #0 screws.

    • Once all screws have been removed, gently pull up on the black panel to remove it from the top of the speaker.

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  4. Definitive Technology W7 Power Supply Replacement: step 3, image 1 of 3 Definitive Technology W7 Power Supply Replacement: step 3, image 2 of 3 Definitive Technology W7 Power Supply Replacement: step 3, image 3 of 3

    • The gray mesh bag covering the speaker will now be exposed.

    • Flick the switch on the middle of the lock down to loosen the sack.

    • Pull upwards on the locking mechanism to loosen the drawstring. Stop pulling when the mesh bag is loose enough that it can be pulled downwards.

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  5. Definitive Technology W7 Power Supply Replacement: step 4, image 1 of 2 Definitive Technology W7 Power Supply Replacement: step 4, image 2 of 2

    • Remove the four screws on top of the device on each corner with a Phillips #0 screwdriver.

    • Remove the black panel.

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  6. Definitive Technology W7 Power Supply Replacement, Power Supply: step 5, image 1 of 1

    • Use a Phillips #2 screwdriver to remove the four 5 mm black screws on the side of the device.

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  7. Definitive Technology W7 Power Supply Replacement: step 6, image 1 of 3 Definitive Technology W7 Power Supply Replacement: step 6, image 2 of 3 Definitive Technology W7 Power Supply Replacement: step 6, image 3 of 3

    • Unclip the two white connectors from the power supply. This is done by pressing the two white plastic strips on the clip together, then, pulling upwards.

    • If removing the clips from the power supply is difficult by hand, use pliers to press the two white plastic strips together, then pull upwards.

    Edit
Conclusion

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

Author

with 2 other contributors

Brendan Thibault

Member since: 10/26/22

339 Reputation

3 Guides authored

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Team

UMass Dartmouth, Team 2-5, Petersen Fall 2022 Member of UMass Dartmouth, Team 2-5, Petersen Fall 2022

UMASSD-PETERSEN-F22S2G5

4 Members

6 Guides authored

2 Comments

I was wondering if you have the part number or a source for the power supply board. I took it out hoping to find a part number but no luck. Thank you in advance for your help.

Bill - Reply

I also have had no luck finding a new original psu after it failed. But it is a 24v psu, and it has a 3amp diode on the output, so it has a theoretical max output of 72watt. So i whent with a MW RPS-120-24 as a replacement, it has a max output of 84w without a fan. The output connector is not the same, so it needs to be modifyed.

FK87 -

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