Sony LBT-XGR90AV Operating Instructions Manual page 32

Precautions (continued)
To save a tape permanently
To prevent a tape from being accidentally recorded
over, break off the cassette tab from side A or B as
illustrated.
If you later want to reuse the tape for recording, cover
the broken tab with adhesive tape. However, be
careful not to cover the detector slots which allow the
tape player to automatically detect the type of tape.
Tab of side B
Break off the
cassette tab of
side A
Before placing a cassette in the tape
deck
Take up any slack in the tape. Otherwise the tape may
get entangled in the parts of the tape deck and become
damaged.
When using a tape longer than 90
minutes
The tape is very elastic. Do not change the tape
operations such as play, stop, and fast-winding, etc.
frequently. The tape may get entangled in the tape
deck.
GB
32
Tab of side A
Cleaning the tape heads
Clean the tape heads after every 10 hours of use.
Make sure to clean the tape heads before you start an
important recording or after playing an old tape. Use
separately sold dry-type or wet-type cleaning cassette.
For details, refer to the instructions of the cleaning
cassette.
Demagnetizing the tape heads
Demagnetize the tape heads and the metal parts that
have contact with the tape every 20 to 30 hours of use
with a separately sold demagnetizing cassette. For
details, refer to the instructions of the demagnetizing
cassette.