Inter-tel IP 8660 Motherboard Replacement

Before disassembling the phone, make sure it is not plugged into power and the handset phone cord is disconnected from the handset jack.

Unscrew the 9 highlighted screws using a #1 Phillips head screwdriver. You can use a magnetized screwdriver to draw them out.

8 mm long

11 mm long

Lift up the back cover and set it aside.

While holding down the motherboard, gently pull the wire harness connecting the speaker to the motherboard until it comes free.

Lift up the speaker.

Lift up the motherboard out of its housing in the front cover of the phone.

Set the front cover and button pads aside.

Using tweezers, pinch the highlighted connective clips together and depress. Start with the clips in the middle of the motherboard first.

Note: There are four clips, one at each corner of the LCD screen.

Flip the motherboard over so that the LCD screen is facing upward.

Push the black clip holding the ribbon cable out of its casing using the plastic opening tool.

This is done using the spudger to lift one side out of its housing.

Reposition the spudger to the other side of the black clip and push it flush with the other end.

Note: The black clip pushes out of the housing and does not come completely loose.

Pull gently on the ribbon cable so that it comes loose from the black clip.