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cplusplus · **Posted:** 24 Sep 2021, 02:37

If it ain't broke, don't fix it. It really is easy to mess these up even if doing just light maintenance.

That being said, a light maintenance routine applicable to CDV-W901 and CLD-S201 focused on longevity:
Unplug unit.
Remove all dust/dirt from heat sensitive components (most of power supply and whatever ICs have fins on them on main board). CLD-S201 has three chassis mounted transistors that need attention. I use cotton swab damp with 91% isopropyl.
Inspect lens with a light. If the surface is not clearly dirty stay clear. Clean the tilt sensor next to it though.
Clean and lightly re-grease rails with EM-30L. Add a dab to center of spindle that touches clamper.
Replace belts (there are two on CLD-S201). Clean the pulleys before putting new one on.
Clean spindle grip.

I do much, much more but beyond the above is higher risk than reward.