Cisco Meraki MC74-HW Phone Sensor Replacement

はじめに

If your Cisco Meraki MC74-HW does not detect that the phone is resting on its holder or does not automatically hang up, you may need to replace the phone sensor. Here are the steps to fix the problem with a simple change of the phone sensor. Once the back cover is fully detached from the device, a PH0 screw bit and reverse tweezers are needed to replace the phone sensor.

必要な工具と部品

手順1 Back Housing and Device Stand

Cisco Meraki MC74-HW Phone Sensor Replacement, Back Housing and Device Stand: 手順 1、 3の画像 1

Cisco Meraki MC74-HW Phone Sensor Replacement, Back Housing and Device Stand: 手順 1、 3の画像 2

Cisco Meraki MC74-HW Phone Sensor Replacement, Back Housing and Device Stand: 手順 1、 3の画像 3

Extend the stand as far away as possible from the device.
Remove all four 3 mm Hex 2 screws from the stand.
A bit with a flexible extension may be needed to remove these screws.

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手順2

Lift the stand off the device.

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手順3

Cisco Meraki MC74-HW Phone Sensor Replacement: 手順 3、 3の画像 3

Insert a plastic spudger between the back housing cover and the sensor cover piece.
Work your way slowly around the edges of the device until all the clips have been unclipped.
Do not insert any tool recklessly into the device or you might damage wires and connections.

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手順4

Separate the back housing cover from the device completely.

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手順5 Phone Sensor

Cisco Meraki MC74-HW Phone Sensor Replacement, Phone Sensor: 手順 5、 2の画像 1

Cisco Meraki MC74-HW Phone Sensor Replacement, Phone Sensor: 手順 5、 2の画像 2

Disconnect the ribbon from the phone sensor board using a pair of reverse tweezers.
Electronic ribbons are very fragile, so pull slowly to disconnect them.

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