Einleitung
If the USB or headphone input is not working in your Cisco Meraki MC74-HW, use this guide to replace them. Here are the steps to fix the problem with a simple change of the inputs board. Once the back cover is fully detached from the device, a J00 screw bit and reverse tweezers are needed to replace the board.
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Extend the stand as far away as possible from the device.
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Remove all four 3 mm Hex 2 screws from the stand.
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Insert a plastic spudger between the back housing cover and the sensor cover piece.
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Work your way slowly around the edges of the device until all the clips have been unclipped.
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Remove the three 2 mm screws holding the USB and headphone jack inputs board using a JIS #00 screwdriver.
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Carefully lift the board until you have clear access to the electronic connector.
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Disconnect the electronic connector on the board using a pair of reverse tweezers.
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Carefully lift the board to remove it from the device.
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To reassemble your device, follow these instructions in reverse order.
