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TRS-80 Color Computer Fuse Replacement

Introduction

Replace a broken fuse on the TRS-80 Color Computer's power supply.

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  1. TRS-80 Color Computer Fuse Replacement, Outside Casing: étape 1, image 1 de 1

    • 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.

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  2. TRS-80 Color Computer Fuse Replacement: étape 2, image 1 de 2 TRS-80 Color Computer Fuse Replacement: étape 2, image 2 de 2

    • Carefully flip the computer right side up.

    • Lift off the top half of the case.

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  3. TRS-80 Color Computer Fuse Replacement, Keyboard: étape 3, image 1 de 2 TRS-80 Color Computer Fuse Replacement, Keyboard: étape 3, image 2 de 2

    • 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. TRS-80 Color Computer Fuse Replacement, Motherboard: étape 4, image 1 de 3 TRS-80 Color Computer Fuse Replacement, Motherboard: étape 4, image 2 de 3 TRS-80 Color Computer Fuse Replacement, Motherboard: étape 4, image 3 de 3

    • 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.

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  6. TRS-80 Color Computer Fuse Replacement: étape 5, image 1 de 3 TRS-80 Color Computer Fuse Replacement: étape 5, image 2 de 3 TRS-80 Color Computer Fuse Replacement: étape 5, image 3 de 3

    • Remove the 5 jumper cables from the motherboard.

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

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  7. TRS-80 Color Computer Fuse Replacement, Fuse: étape 6, image 1 de 2 TRS-80 Color Computer Fuse Replacement, Fuse: étape 6, image 2 de 2

    • Remove the two 40.6mm Philips screws securing the TRS-80 transformer.

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  8. TRS-80 Color Computer Fuse Replacement: étape 7, image 1 de 3 TRS-80 Color Computer Fuse Replacement: étape 7, image 2 de 3 TRS-80 Color Computer Fuse Replacement: étape 7, image 3 de 3

    • Remove the power cable jumpers from the power supply.

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  9. TRS-80 Color Computer Fuse Replacement: étape 8, image 1 de 1

    • Gently peel back the protective film on the top of the transformer.

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  10. TRS-80 Color Computer Fuse Replacement: étape 9, image 1 de 3 TRS-80 Color Computer Fuse Replacement: étape 9, image 2 de 3 TRS-80 Color Computer Fuse Replacement: étape 9, image 3 de 3

    • Locate the two points the fuse is soldered into the circuit board.

    • Using a soldering iron and soldering wick, desolder and remove the fuse.

    • Place the new fuse into the location of the old one, and solder it in place.

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Conclusion

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

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Christopher Paige

Membre depuis le 01/21/11

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Cal Poly, Team 11-24, Maness Winter 2011 Membre de l'équipe Cal Poly, Team 11-24, Maness Winter 2011

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