An externally hosted image should be here but it was not working when we last tested it.
I had to sort out a sticking drawer mech and thought I would clean the laser whilst there. After cleaning it looks like there is pitting on it. Is this normal?Attachments
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It was like that before I used a cotton bud with ISOP. I dipped the bud in the iso and squeezed it virtually dry. I was surprised that it seemed to make no difference. It looks to me like where a very old stick on clear thingy has aged and is starting to degrade/disintegrate where the clear outer breaks up leaving the adhesive. I understand that some lasers may have some kind of coating applied to counter reflection?
Are you sure that's the laser lens? In the photo I can see what looks like the disc platter that sits on top of the spindle motor, with centering fingers around hub. What model CD is it?
In the picture below, you can see a similar platter, and the laser (not in photo) moves in the slot behind:
http://jaguar.linkovitch.me.uk.s3.mytilde.co.uk/cdrepair/images/platter-640.jpg
In the picture below, you can see a similar platter, and the laser (not in photo) moves in the slot behind:
http://jaguar.linkovitch.me.uk.s3.mytilde.co.uk/cdrepair/images/platter-640.jpg
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Hmm, I see what you mean. I've just put the top cover back on it thinking that was going to be as good as it got. It is a Marantz CD 63.
You usually have to get the disc loading mechanism out of the way before you can see the laser. The laser assembly in a CD-63 is the white part in the middle of the slot in this photo, where you can see a lens about 4 mm in diameter with a blue tinge (the lens coating):
While you've got it apart to clean the lens, put a drop of machine oil on the spindle motor bearings, particularly the top one under the disc platter. See if you can get a tiny drop on the end of a needle through the gap and onto the top bearing. Noise in the top bearing is a significant source of disc read errors (as is dust on the laser lens).