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How to Clean Laser Focus Lens of a 1633s?
Your photo shows the wrong side. The only screws you need to remove the four external phillips head screws that hold the metal case onto the drive. You must remove the disc tray door cover and the front panel/bezel first.
Finesse is better than force when working with the plastic tabs during disassembly.
Step 1 Remove the disc tray door and front panel.
Retail LiteOn drives ship with two bezels (black and white) and include instructions for swapping them. You may be able to get the Front Panel Replacement Guide from LiteOn. The graphics are helpful.
Insert a paper clip into the eject hole and pull the disc tray out about 1 inch. Turn the drive over. With the bottom side up, gently pull out on the door cover at end of disc tray. Once the two tabs clear the door should slide toward the top of the drive.
With the door removed, push the disc tray back in. Press in on the three plastic tabs to unlatch the front panel/bezel and gently remove.
Step 2 Remove the metal cover.
Four small phillips head screws hold the metal cover on. Remove the screws and pull off the cover.
Step 3 Turn drive right side up and use a paper clip to eject the disc tray.
With the disc tray extended you should now see the laser lens assembly. No further disassembly is required.
Step 4 Carefully clean the laser focus lens.
Use a soft bristle artist's brush that is clean and dry to brush dust off the laser focus lens. If you use a can of compressed air to blow out the dust be sure to hold it upright. Use lens cleaning solution and lens tissue for camera lenses. Apply solution to lens tissue. Gently clean the laser lens.
Assembly is reverse of disassembly. Push the disc tray back in. Replace the metal cover but leave the screws slightly loose. Install the front panel/bezel and tighten the screws. Install the door cover. Check the jumpers and install the drive. Do a test burn.
It is a guide of opening a 1633s and cleaning its laser focus lens.
Keywords
Laser Focus Lens, Diode laser
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