Introduction

Use this guide if any of the selector knobs get bent, broken, or stops working.

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  • Remove all the selector knob covers by pulling them off.

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  • Using needle nose pliers, remove the washers from the four corner selector knobs.

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  • Flip the device over. Using a Philips #2 screw driver, remove the fourteen 10.3 mm black screws holding the back panel in place.

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Image 1/3: Please use care in following the step above to avoid ripping the ribbon cables connecting the two sides. Image 2/3: Please use care in following the step above to avoid ripping the ribbon cables connecting the two sides. Image 3/3: Please use care in following the step above to avoid ripping the ribbon cables connecting the two sides.
  • Carefully flip the device to the front making sure you secure the face plate and the chassis together.

  • Please use care in following the step above to avoid ripping the ribbon cables connecting the two sides.

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Image 1/3: Use care when doing the step above so that the ribbon connectors which connect the top of the chassis to the top of the face plate are not damaged. Image 2/3: Use care when doing the step above so that the ribbon connectors which connect the top of the chassis to the top of the face plate are not damaged. Image 3/3: Use care when doing the step above so that the ribbon connectors which connect the top of the chassis to the top of the face plate are not damaged.
  • Rotate the device 180 degrees and carefully remove the face plate by slightly lifting the screen side towards you and then sliding the bottom out from under the keys.

  • Use care when doing the step above so that the ribbon connectors which connect the top of the chassis to the top of the face plate are not damaged.

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  • Using a Phillips #2 screwdriver, remove the thirteen 9.8mm silver screws holding the mother board to the face plate.

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  • Using two plastic opening tools, slide the black locking mechanism on the ZIF connector towards you. This will remove the ribbon cable connecting the motherboard to the screen.

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  • Wiggle and pull out the ribbon cable connecting the mother board to the beat pads.

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Image 1/3: Image 2/3: Image 3/3:
  • Remove the mother board completely from the face plate and identify the broken potentiometer.

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Image 1/1: Use a soldering iron with solder wick (or a solder sucker) in order to free the potentiometer from the mother board.
  • Flip the mother board back over so the potentiometers are facing down and the leads are facing up. Then identify which leads correspond to the broken potentiometer.

  • Use a soldering iron with solder wick (or a solder sucker) in order to free the potentiometer from the mother board.

  • Add some leaded solder to the leads if your having trouble getting the factory solder to draw to the solder wick.

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Conclusion

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

3 other people completed this guide.

Anthony Zepeda

Member since: 01/30/2013

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Cal Poly, Team 20-6, Maness Winter 2013 Member of Cal Poly, Team 20-6, Maness Winter 2013

CPSU-MANESS-W13S20G6

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