Sony Walkman NWZ-E438 Device Circuit Board Replacement

Step 1 Disassembling Sony Walkman NWZ-E438

• Unscrew the two screws on the back of the device using a Phillips PH000 screwdriver.
• Keep the Phillips PH000 screwdriver aside for further steps in the guide. It will be the only screwdriver needed for this replacement.
Step 2

• Use a small prying tool to carefully pry open the back of the device.
Step 3 Circuit Board
• First, you must remove the black tape on the circuit board.
• Next, pull up on the red and gold band until it detaches from the chip.
Step 4
• Using a small plastic prying tool, slip the end under the device circuit board and slowly lift it.
• Once the circuit board is lifted, carefully remove the chip with tweezers.
• The circuit board will still be connected to the device by a wire.
Step 5
• Using a soldering iron, carefully heat the metal connecting the wires from the device to the circuit board.
• You will need the soldering iron to reattach those wires once you've replaced the circuit board.
Step 6
• Carefully remove the circuit board from the device.

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Cheryl Zinn

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Eastern Washington University, Team 2-5, Plummer Fall 2015 Member of Eastern Washington University, Team 2-5, Plummer Fall 2015

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