In article , Andy Evans
wrote:
If you want to monitor the servos, you could probably also connect your
scope to the servo lines that feed the actuators and establish that the
drive patterns are not clipping or excessive in size. Tapping the drive
whilst doing this will check.

Hello Jim - I've made a not of this. Thanks. andy

FWIW there are some books on servicing and 'troubeshooting' CD players.
Although the one I have is quite old, and only deals with CD-A players, not
CDROM drives. Might be worth your while looking for books on this, though.

Slainte,

Jim

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