Videlectrix said:
The side that the laser reads
Having repaired literally hundreds of the 3-player mechs in these over the
years, I really can't think of anywhere that this can be coming from. For it
to keep doing it, there would have to be a significant quantity of whatever
it is. I would have expected that, this being the case, you would have been
able to easily spot it. I'm assuming that whatever it is that gets on there,
is smeared around in a 'ring' on the disc ? Whilst the disc is on the
turntable, the only thing that comes close enough to the disc to thus
'spread' something that had been picked up as a spot whilst the disc was
being rotated on the carousel, is the lens. This being the case, you would
expect to then see something on the top of the lens after the event has
occured. Further, I would have expected the ring to be spread elsewhere on
the disc surface, by the passage of the lens across the disc - at least
until it had thinned it enough for the lens to no longer be able to touch
it.
There is actually very little grease used on this deck. The majority of the
open / close and sub-deck lifter gearing ( the blue gear, the black and
white gears, and the yellow rack slide ) are made from an oily plastic like
polythene, and run dry on their contact surfaces, although I seem to
remember that they might have silicone lubricant on their shafts. The only
other place that there is a significant quantity of grease, is on the
carousel worm drive, but this is located right underneath the tray, so I
can't see how any grease could get from there, onto the upper surface, where
it could get picked up by the disc.
It's a mystery, but one I would have thought that you could have got to the
bottom of by careful examination of the mech. If the contamination always
appears in the same place, then it should be an easy enough job to project
the band where it could be getting on the disc, onto the carousel, because
I'm sure that's where it *must* be getting on there, rather than from the
deck area, and then rotating the tray manually by working the worm gear with
a finger ( you can just get to it with the tray open ), and watching all the
way round, through one of the disc slots in the carousel. As I am very
familiar with this mech, I am most intrigued to know what it turns out to
be, so please share when you do find out.
Arfa
