How to Repair Portable DVD Showing No Disc

Written by marshal m. rosenthal
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Portable DVD players suffer from the problem of getting dust and other materials into their playing mechanism. This causes the laser's focusing lens to become cloudy and the portable DVD player displays a "No Disc" message because the laser is unable to recognise that a disc has been inserted. Repairing the portable DVD player requires opening it up to clean off the lens. The procedure is basically the same for all portable DVD players, although there might be minor differences among manufacturers. Once the lens has been cleaned, the portable DVD player will again recognise and play a disc that has been put into it.

Skill level:
Moderate

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Things you need

  • Soft cloth
  • Phillips jeweller's screwdriver
  • Flat-edged jeweller's screwdriver
  • Compressed air
  • Cotton swab
  • Photographic lens cleaning solution

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Instructions

  1. 1

    Put the soft cloth down on a table. Close the lid of the portable DVD player. Turn the portable DVD player upside down and put it onto the soft cloth.

  2. 2

    Use the Phillips jeweller's screwdriver to remove the screw from the battery compartment on the bottom of the portable DVD player. Remove the battery compartment. Remove the battery.

  3. 3

    Insert the flat-edged jeweller's screwdriver into the seam between the bottom and upper shell of the portable DVD player. Wiggle the flat-edged jeweller's screwdriver into the seam until the bottom and upper shell separate. Remove the bottom shell and put it down next to the upper shell so that any wires connecting the two are not pulled out.

  4. 4

    Locate the laser assembly into the centre of the bottom shell. Wiggle one side of the laser assembly loose from the rail that hold it in place. Wiggle the other side of the laser assembly loose from the rail holding it in place. Remove the laser assembly and put it down on the soft cloth.

  5. 5

    Use the Phillips jeweller's screwdriver to remove the screws from around the laser component on the laser assembly. Remove the laser component and put it down on the soft cloth. Blow off the laser component with the compressed air.

  6. 6

    Moisten a cotton swab in photographic lens cleaning solution. Gently wipe the cotton swab against the lens on the laser component. Let the lens dry. Repeat the process with another cotton swab moistened in photographic lens cleaning solution. Blow off the lens with the compressed air.

  7. 7

    Reattach the laser component to the laser assembly. Reassembly the laser assembly onto the railings inside of the bottom shell. Blow off any dirt or dust from the bottom and upper shell. Reassemble the portable DVD player. Insert the battery and close the battery compartment.

Tips and warnings

  • Wear an anti-static strap to ground yourself when touching the internal components of the portable DVD player.
  • Scratching the circuit board can result in the portable DVD player no longer working.

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