Sony TCM-450 PCB/Circuit Board Replacement

Callie Ann Brigance et 3 autres contributeurs

Dernière mise à jour le December 30, 2024

20 - 30 minutes

Difficile

Introduction

Passez à l'étape 1

iFixit Soldering Guide

Do you need to remove the circuit board, motor, belts, or buttons on your TCM-450? Then you will need this guide to get to those parts. The PCB, motherboard, or circuit board for TCM-450 hides all of the important mechanical components that make TCM-450 work, and is the computer board that runs the device. This may be difficult because you desolder multiple wires to lift up the PCB.

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Étape 1 Back Cabinet

Sony TCM-450 PCB/Circuit Board Replacement, Back Cabinet: étape 1, image 1 de 3

Sony TCM-450 PCB/Circuit Board Replacement, Back Cabinet: étape 1, image 2 de 3

Sony TCM-450 PCB/Circuit Board Replacement, Back Cabinet: étape 1, image 3 de 3

Remove the two 3.5 mm Phillips #00 screws from the bottom of the device.
Caution: Ensure the device is off and unplugged if using the power adapter, as it is unsafe to remove the cabinet while on and will cause damage and potential harm to the user.

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Étape 2

Sony TCM-450 PCB/Circuit Board Replacement: étape 2, image 3 de 3

Open the lid, and carefully remove the two 9.7 mm Phillips #0 screws from the inside of the front cabinet.
Exercise caution while removing these screws, as damage to essential parts may occur and other minor damages may occur if the screwdriver slips.

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Étape 3

Sony TCM-450 PCB/Circuit Board Replacement: étape 3, image 3 de 3

Open the battery cover, and gently remove the back cabinet with the iFixit Opening tool.
The device will make a popping sound when removing the back cabinet. The back cabinet may feel as if it is not loose. However, as long as the back cabinet looks disconnected from the lid, it is safe to remove.

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Étape 4 PCB/Motherboard/Circuit Board

Sony TCM-450 PCB/Circuit Board Replacement, PCB/Motherboard/Circuit Board: étape 4, image 1 de 2

Sony TCM-450 PCB/Circuit Board Replacement, PCB/Motherboard/Circuit Board: étape 4, image 2 de 2

Carefully desolder each connection and gently remove each connected wire.
If you are unfamiliar with desoldering and soldering, please consult the iFixit Soldering Guide.
Make sure the soldering iron is 50 watts as 30-40 watt soldering irons will not melt the solder on the PCB.

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Étape 5

Carefully desolder the next set of connections and gently remove the connected wires.

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Étape 6

Carefully desolder the last two groups of connections and gently remove the wires.
Caution: Desolder all three marked connections at once before attempting to remove the wires, as they will not fully disconnect and cause damage to the device.

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Étape 7

Sony TCM-450 PCB/Circuit Board Replacement: étape 7, image 3 de 3

Carefully remove the three inner screws as shown from the circuit board to loosen it.
Remove the following screws in this order:
A 3.4 mm Phillips #00
A 4.6 mm Phillips #00
A 9.7 mm Phillips #0. To remove this screw you must lift the PCB at the same time.

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Étape 8

Lift the PCB from the device.
Make sure not to pull out any wires while lifting the board, as it could cause damage to the device.

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Conclusion

To reassemble your device, follow the above steps in reverse order.
Take your e-waste to an R2 or e-Stewards certified recycler.
Repair didn’t go as planned? Try some basic troubleshooting or ask our Answers community for help.