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Sony Walkman NWZ-E438 Device Circuit Board Replacement

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  1. Sony Walkman NWZ-E438 Device Circuit Board Replacement, Disassembling Sony Walkman NWZ-E438: crwdns2935265:01crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • 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.

  2. Sony Walkman NWZ-E438 Device Circuit Board Replacement: crwdns2935265:02crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Use a small prying tool to carefully pry open the back of the device.

  3. Sony Walkman NWZ-E438 Device Circuit Board Replacement, Circuit Board: crwdns2935265:03crwdnd2935265:01crwdnd2935265:03crwdne2935265:0 Sony Walkman NWZ-E438 Device Circuit Board Replacement, Circuit Board: crwdns2935265:03crwdnd2935265:02crwdnd2935265:03crwdne2935265:0 Sony Walkman NWZ-E438 Device Circuit Board Replacement, Circuit Board: crwdns2935265:03crwdnd2935265:03crwdnd2935265:03crwdne2935265:0
    • 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.

  4. Sony Walkman NWZ-E438 Device Circuit Board Replacement: crwdns2935265:04crwdnd2935265:01crwdnd2935265:02crwdne2935265:0 Sony Walkman NWZ-E438 Device Circuit Board Replacement: crwdns2935265:04crwdnd2935265:02crwdnd2935265:02crwdne2935265:0
    • 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.

  5. Sony Walkman NWZ-E438 Device Circuit Board Replacement: crwdns2935265:05crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • 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.

  6. Sony Walkman NWZ-E438 Device Circuit Board Replacement: crwdns2935265:06crwdnd2935265:01crwdnd2935265:01crwdne2935265:0
    • Carefully remove the circuit board from the device.

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For reassembling your device, follow the instructions in reverse.

Cheryl Zinn

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Eastern Washington University, Team 2-5, Plummer Fall 2015 crwdns2935289:0Eastern Washington University, Team 2-5, Plummer Fall 2015crwdne2935289:0

EWU-PLUMMER-F15S2G5

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