Introduction

To complete this guide you will have to disassemble the handset and use a soldering iron to replace the circuit board. Other than the soldering process, the guide steps are medium in difficulty to complete. After completing this guide, users should have a fully operating, handset circuit board and screen.

Set the phone with dial keys facing downward.
  • Set the phone with dial keys facing downward.

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Slide the battery cover toward the bottom of the phone.
  • Slide the battery cover toward the bottom of the phone.

  • Lift and remove the back cover from the phone.

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  • Remove the battery from its compartment.

  • Pinch the end of cord where the battery is attached to the phone and pull up gently.

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  • Remove the two 9mm Phillips #1 screws in the battery compartment.

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  • Use the plastic opening tool to carefully separate the two halves of the case.

  • Slowly work around the entire case to fully separate the halves before pulling them apart.

  • Wires inside the case hold the two halves together, tearing these wires will lead to a need for additional repair.

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  • Carefully remove the 9mm Phillips #1 screw from the top corner of the circuit board.

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  • Carefully grasp either side of the circuit board and lift it straight out of the front half of the case.

  • Set the board in the lower half of the case.

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  • Set the circuit board on the table with the screen facing down.

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  • Using the desoldering braid and soldering iron, remove the solder around the cable for the speaker.

  • When installing the new board, use the soldering iron and solder to reattach the speaker cables.

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Conclusion

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

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Penn State, Team 1-8, Kaschak Winter 2015 Member of Penn State, Team 1-8, Kaschak Winter 2015

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