Polyconcept 900 Mhz Retro Cordless Telephone Device Motherboard Replacement Repair Guide

Difficulty

Difficult

Steps

Time Required

                          1 hour

Sections

Cordless Phone Base
3 steps
Motherboard
4 steps

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Introduction

What you need

Step 1

              Removing Power and Telephone Cords

To disconnect the phone cord, squeeze the tab against the connector and pull the cord away from the telephone-line-in-jack.
To disconnect the power cord, grasp the end and pull back and away until it is disconnected.
Once disconnected remove each cord from its track.

To disconnect the phone cord, squeeze the tab against the connector and pull the cord away from the telephone-line-in-jack.

To disconnect the power cord, grasp the end and pull back and away until it is disconnected.

Once disconnected remove each cord from its track.

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Step 2

              Removing Screws to Base Plate

Using a Phillips #00 screwdriver, remove the six 7mm screws from the base plate.

Using a Phillips #00 screwdriver, remove the six 7mm screws from the base plate.

Step 3

              Remove Bottom Plate from Base

With the base turned upside down, grasp the edges of the base plate and gently lift from the rest of the base.
Two wires lead from the motherboard to the charger plate, so the two parts cannot be completely separated without further steps.

With the base turned upside down, grasp the edges of the base plate and gently lift from the rest of the base.

Two wires lead from the motherboard to the charger plate, so the two parts cannot be completely separated without further steps.

Step 4

              Removing Screws

Use a Phillips #00 screwdriver to remove the three 6mm screws from the phone and power jack cover plate.
Lift the phone and power jack cover plate away from the motherboard.

Use a Phillips #00 screwdriver to remove the three 6mm screws from the phone and power jack cover plate.

Lift the phone and power jack cover plate away from the motherboard.

Step 5

              Removing the Motherboard Screw

Use a Philips #00 screwdriver to remove the single 6mm screw from the motherboard.

Use a Philips #00 screwdriver to remove the single 6mm screw from the motherboard.

Step 6

              Removing Glue Covering for Wire Connections

Use the spudger tool to carefully scrape the glue off of the connection points of both the black and red wires.

Use the spudger tool to carefully scrape the glue off of the connection points of both the black and red wires.

Step 7

              Desoldering Wire Connections

Gently lift the motherboard away from the base plate and flip over.
Use the soldering station to desolder the wire connections.
For further instructions on using the soldering station click here.

Gently lift the motherboard away from the base plate and flip over.

Use the soldering station to desolder the wire connections.

For further instructions on using the soldering station click here.

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

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Author

                                      with 3 other contributors

                    Jay Gunter

Member since: 10/27/2014

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Team

                       Eastern Washington University, Team 1-1, Carnegie Fall 2014                        

                                                  Member of Eastern Washington University, Team 1-1, Carnegie Fall 2014 



                    EWU-CARNEGIE-F14S1G1                     


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                                            12 Guides authored

Introduction#

What you need#

Team#

Introduction

What you need

Team