Preparations - Sony XR-A55 Operating Instructions Manual

Preparations
== Note
[To remove] To play a 3-inch (8 cm) CD, use
Labeled surface the Sony CSA-8 adaptor (not
supplied). Playing a 3-inch
(8 cm) CD without the adaptor
may damage the changer unit.
uonesedo 09 i
Use the CD changer unit with its door closed
Otherwise, foreign matter may enter the unit, and contaminate the
lenses inside.