The laser that reads and writes data in a DVD recorder focuses through an optical lens. Dirt and dust that gets onto the optical lens can cause it to cloud and become unusable. Replace the optical lens inside of a DVD recorder to restore the player's capabilities. A few household tools are required, as is a replacement optical lens from a laser supply shop. No electrical skills are needed to accomplish the replacement.
Place a bath towel on a table to protect the surface. Unplug the DVD recorder's power cord. Place the DVD recorder on the bath towel with the front facing you.
Remove the screws from the four corners of the DVD recorder with the Phillips screwdriver. Turn the DVD recorder so that the back is facing you. Remove the screws from the four corners with the Phillips screwdriver. Remove the screws along the bottom edge with the Phillips jeweller's screwdriver.
Turn the DVD recorder so that the front is facing you. Place your hands on both sides of the outer case. Push the outer case away from you. Pull the outer case off the DVD recorder and place it aside.
Insert an end of a straightened paper clip into the hole beneath the bezel of the disc tray on the front. Press on the paper clip to release the disc tray. Pull the disc tray all the way out.
Locate the laser assembly lying on top of the DVD drive near the front edge of the DVD recorder. The laser assembly is riding on rails attached to the DVD drive.
Remove the screws around the laser assembly with the Phillips jeweller's screwdriver. Raise one side of the laser assembly to disengage it from the rail it is riding on. Repeat this procedure with the other side of the laser assembly.
Pull the laser assembly off the DVD drive. Place the laser assembly face up on the bath towel. Remove the screw attached to the clip that is lying against the laser diode at the centre of the laser assembly with the Phillips jeweller's screwdriver. Pull the clip off the laser assembly.
Clamp the jaws of the needle-nosed pliers on an edge of the laser diode's base. Pull the laser diode out of the laser assembly with the needle-nosed pliers. Place the laser diode aside on the bath towel.
Aim the beam of the flashlight at the laser assembly. Note the reflection from the optical lens next to the cavity where the laser diode was. Clamp the jaws of the needle-nosed pliers on an edge of the optical lens. Pull the optical lens out of the laser assembly with the needle-nosed pliers.. Discard the optical lens.
Remove the protective paper from both sides of the replacement optical lens. Grasp an edge of the replacement optical lens with a tweezers. Place the replacement optical lens in the position that the original optical lens was on the laser assembly.
Place the laser diode back into position on the two rails with the needle-nosed pliers. Place the clip back on. Reattach the screw to the clip.
Push the disc tray back into the front of the DVD recorder. Place the outer case back on. Reattach the screws to the front and back of the DVD recorder.
Static electricity can damage internal components so wear an anti-static strap, purchased from an electronics store, to prevent this from happening.