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I am looking at a Panasonic DVD player #SA-HT75. Insert disk, dispays
reading, then after a few seconds displays no disk. Tried different
disks with same results. Tried cleaning the laser, but no change. I
checked the voltage on the motor that drives the disk and no problem
here. I did this because I noticed when the disk is inserted, it
doesn't turn. The laser module slides back and forth like it's supposed
to. Shouldn't the disk spin when inserted to be read? is the best
course of action, replace this as a module if available, or the motor
if this is the fault. Thanks all.


It is very common for the spindle motor to cause problems on these players.
You are correct in that the disc should spin up at the time it starts to try
to read it. Usually, if you use a finger to spin up the disc ( clockwise
from the top ), it will carry on and read the disc successfully.

Replacing this motor is not as easy as you may think, if you have no
experience of doing it. It comes as part of the subdeck, with the turntable
already fitted, as the height of this is critical. However, you also have to
swap over several gears, the laser, and the laser slide bars. When this is
done, and the deck is reinstalled, the laser then has to be adjusted for
tilt. This is accomplished by invoking the built in software jitter meter,
and adjusting the three allen screws under the slide bars, for minimum
jitter factor.

Unless you are experienced in this sort of work, I really wouldn't recommend
that you try, to be honest, as you may finish up causing yourself even more
trouble. Take it to a dealer, who will be well versed in the procedures
involved, and should be able to give you an over-the-counter quote for the
work.

Arfa