7
TECHNICAL APPENDIX
7.1
Maintenance of the cassette
tape transport
Maintenance of the
B215 cassette recorder is limited
to cleaning
the capstan shafts.
pinch
rollers,
soundheads
with their tape
guide
elements, and to
occasionaldemagnetization of
the
metal
parts
that
come in contact
with
the tape.
The cleaning
kit No.
39000
is
suited
for
this
purpose.
ln the case
of very dirty
tape
guide
elements,
remove the headshield
as il-
lustrated.
(Picture
shows
the locations to be cleaned.)
The tape transport can
also be cleaned with commercially
avail-
able
cleaning and demagnetizing
cassettes.
-o
7.2 Equalization 120
ps
for IEC ll cassettes
The
unusual
equalization
for chromiumdioxide cassettes
has
been
chosen because this
type
of tape
material
is frequently
used for
prerecorded
music cassettes. This
improves the treble
response, albeit at the expense
of a
slightly
highertape
noise. To
record this chromiumdioxide
tape.
select
the standard
TYPE ll-
120ps
7.3 Dimensions
(mm)
15