Introducción

Replace an aging power cord on the TRS-80 Color Computer.

  1. Flip the computer over.
    • Flip the computer over.

    • Remove the two 24.1mm Phillips screws near the front of the case.

    • Remove the five 33.0 mm Phillips screws towards the back of the case.

  2. Carefully flip the computer right side up. Lift off the top half of the case.
    • Carefully flip the computer right side up.

    • Lift off the top half of the case.

  3. Near the motherboard, gently pull the keyboard ribbon cable until it becomes free. Lift the keyboard out of the case.
    • Near the motherboard, gently pull the keyboard ribbon cable until it becomes free.

    • Lift the keyboard out of the case.

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  5. Remove the nine 15.24 mm Phillips screws securing the motherboard in place. When removing the spring door, make sure to keep the door closed. When removing the spring door, make sure to keep the door closed.
    • Remove the nine 15.24 mm Phillips screws securing the motherboard in place.

    • When removing the spring door, make sure to keep the door closed.

  6. Remove the 5 jumper cables from the motherboard. Once the jumper cables lift the motherboard up gently; it should lift out easily. Once the jumper cables lift the motherboard up gently; it should lift out easily.
    • Remove the 5 jumper cables from the motherboard.

    • Once the jumper cables lift the motherboard up gently; it should lift out easily.

  7. Remove the two 1.6 inch screws securing the transformer. Remove the two 1.6 inch screws securing the transformer.
    • Remove the two 1.6 inch screws securing the transformer.

  8. Remove the power cord's three leads from the transformer.
    • Remove the power cord's three leads from the transformer.

    • Note the orientation and color of the three leads. Make sure to replace these exactely as they were.

  9. Using needle-nose pliers, pinch the tabs of the grommet holding the power cord to the case and push the grommet out. Remove the entire length of cord from the case and replace with a new one.
    • Using needle-nose pliers, pinch the tabs of the grommet holding the power cord to the case and push the grommet out.

    • Remove the entire length of cord from the case and replace with a new one.

Conclusión

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

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Equipo

Cal Poly, Team 11-24, Maness Winter 2011 Miembro de Cal Poly, Team 11-24, Maness Winter 2011

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