Sony CMT-J3MD - Manual (Page 67)

Additional Information
67
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
frequently. The tape may get entangled in the tape
deck.
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.
Tab of side B Tab of side A
Detector slots
Side A
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 deck to automatically detect the type of tape.
TYPE II (CrO 2 ) TYPE I (normal)
Detector slots
Cleaning the tape heads
Clean the tape heads after every 10 hours of use.
When the tape heads become dirty
— the sound is distorted
— there is a decrease in sound level
— the sound drops out
— the tape does not erase completely
— the tape does not record.
Be sure to clean the tape heads before you start an
important recording or after playing an old tape.
Use a separately sold dry-type or wet-type cleaning
cassette. For details, refer to the instructions of the
cleaning cassette.
Demagnetising the tape heads
Demagnetise the tape heads and the metal parts that
has contact with the tape after every 20 to 30 hours of
use with a separately sold demagnetising cassette.
For details, refer to the instructions of the
demagnetising cassette.
Break off the
cassette tab
of side A