Danger
Potentially Dangerous
Injury may result if this procedure is not followed properly. Use caution and follow all warnings.
Danger

Introduction

Removing the main circuit board requires a Phillips #1 screwdriver with at least a 15cm shaft as well as a Phillip #0 screwdriver, (regular size). Make sure that there is no power source, plug in or batteries, within the boombox before starting the procedure.

Image 1/3: Be sure to unplug the boombox from the wall before attempting to open it for repair. Image 2/3: Be sure to unplug the boombox from the wall before attempting to open it for repair. Image 3/3: Be sure to unplug the boombox from the wall before attempting to open it for repair.
  • Remove the cover for the battery compartment on the back of the boombox by applying downward pressure to the two clamps.

    • Be sure to unplug the boombox from the wall before attempting to open it for repair.

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Image 1/2: The top row of batteries have the positive side pointing right. The bottom row of batteries have the positive side pointing left. Image 2/2: The top row of batteries have the positive side pointing right. The bottom row of batteries have the positive side pointing left.
  • Using your fingers, push against the positive end of each battery. Once it is loose, lift the battery out.

    • The top row of batteries have the positive side pointing right. The bottom row of batteries have the positive side pointing left.

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Image 1/3: Unscrew the top two 14mm screws with a 14cm Phillips #1 screwdriver. You may need a flashlight to see the screws. Image 2/3: Unscrew the top two 14mm screws with a 14cm Phillips #1 screwdriver. You may need a flashlight to see the screws. Image 3/3: Unscrew the top two 14mm screws with a 14cm Phillips #1 screwdriver. You may need a flashlight to see the screws.
  • Hold the boombox handle at an angle to access the screws behind the CD player.

  • Unscrew the top two 14mm screws with a 14cm Phillips #1 screwdriver. You may need a flashlight to see the screws.

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Image 1/2: All four screws have black arrows (not visible in the photo) indicating their location on the boombox. Image 2/2: All four screws have black arrows (not visible in the photo) indicating their location on the boombox.
  • Remove four 14mm screws using a 14cm Phillips #1 screwdriver. Two of these screws are at the bottom of the boombox and the other two are on either side of the boombox.

  • All four screws have black arrows (not visible in the photo) indicating their location on the boombox.

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Image 1/3: Remove the two connections connecting the front panel to boombox. Image 2/3: One is located on the upper lefthand side of the main circuit board. Image 3/3: The other is a large white strip slightly to the right of the cassette player.
  • Gently separate the front panel from the back panel.

  • Remove the two connections connecting the front panel to boombox.

    • One is located on the upper lefthand side of the main circuit board.

    • The other is a large white strip slightly to the right of the cassette player.

    • Do not touch the cylindrical parts on the circuit board. These are capacitors and may deliver a shock!

  • Remove the front panel.

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Image 1/3: Wiggle the cassette motor to remove it from the two brackets. (Do not remove completely. Simply separate the motor from the two brackets). Image 2/3: Remove the two wire sets that connect the cassette motor to the main circuit board. Image 3/3: Completely remove the cassette motor.
  • Unscrew the four 12 mm screws that connect the cassette motor to the brackets with a Phillips #1 screwdriver.

  • Wiggle the cassette motor to remove it from the two brackets. (Do not remove completely. Simply separate the motor from the two brackets).

  • Remove the two wire sets that connect the cassette motor to the main circuit board.

  • Completely remove the cassette motor.

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Image 1/3: Gently pull on the brackets to remove them. Image 2/3: Gently pull on the brackets to remove them. Image 3/3: Gently pull on the brackets to remove them.
  • Unscrew the four 12mm screws that connect the brackets to the main circuit board with a Phillips #1 screwdriver

  • Gently pull on the brackets to remove them.

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Image 1/1: Separate tuner wheel bracket from tuner wheel.
  • Unscrew the 10 mm screw located on the top left of the tuner wheel bracket with a Phillips #1 screwdriver.

    • Separate tuner wheel bracket from tuner wheel.

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Image 1/1: Remove tuner wheel.
  • Unscrew the 6mm screw in the center of the tuner wheel with a Phillip #0 screwdriver.

  • Remove tuner wheel.

  • The tuner wheel protrudes out of the base of the boombox slightly. Be mindful of this when removing tuner wheel.

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Image 1/3: Note the second picture contains the left half of the main circuit board. The third picture contains the right half. Image 2/3: Note the second picture contains the left half of the main circuit board. The third picture contains the right half. Image 3/3: Note the second picture contains the left half of the main circuit board. The third picture contains the right half.
  • Unscrew the five 10mm screws located on the main circuit board with a Phillips #1 screwdriver.

  • Note the second picture contains the left half of the main circuit board. The third picture contains the right half.

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Image 1/3: The order of removal is not important. Image 2/3: Note the second picture contains the left half of the main circuit board. The third picture contains the right half. Image 3/3: In reference to reassembly, the connection for each set of wires is a different size. Use these size differences to figure out where to reconnect each wire
  • Disconnect the six wire sets that connect to the main circuit board. Each of the wires have 3-6 prongs.

  • The order of removal is not important.

  • Note the second picture contains the left half of the main circuit board. The third picture contains the right half.

  • In reference to reassembly, the connection for each set of wires is a different size. Use these size differences to figure out where to reconnect each wire

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Image 1/2: Pop off the buttons by placing the tweezers under the button as shown in the first picture. Then proceed to push upwards till the button pops off. Image 2/2: Pop off the buttons by placing the tweezers under the button as shown in the first picture. Then proceed to push upwards till the button pops off.
  • Use a tweezer to pop off the volume and tuner button located on the top left of the boombox.

  • Pop off the buttons by placing the tweezers under the button as shown in the first picture. Then proceed to push upwards till the button pops off.

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Image 1/1: Be mindful of that the mode tuner on the top left of the circuit board and the tuner wheel might be slightly in the way during removal.
  • Gently wiggle and pull the main circuit board till it is fully removed.

  • Be mindful of that the mode tuner on the top left of the circuit board and the tuner wheel might be slightly in the way during removal.

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Conclusion

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

One other person completed this guide.

Trevor Hori

Member since: 10/14/2014

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1 Guide authored

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Cal Poly, Team 10-38, Amido Fall 2014 Member of Cal Poly, Team 10-38, Amido Fall 2014

CPSU-AMIDO-F14S10G38

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