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CASSETTE
TAPES
There are many different types of cassette tapes sold on
the market; however, they all conform
to standard specifi-
cations so that any brand may be used with the K-2720.
@
Classification of Cassette Tapes By Recording Time
Cassette tapes are available in a number of forms according
to the amount of time in minutes it takes to record or
playback both sides of the tape.
Record/Playback Time
Length of Tape
One way
(m)
(Min.)
*
Yamaha suggests that you not use C-120 cassettes since
the extreme thinness of the tape in these cassettes
makes them susceptible to mechanical and electrical
problems,
ə
Classification of Cassette Tapes by Formulation
Cassette tapes are available in four basic types depending
on their formulation, ar type of magnetic material and
manufacturing process. These four types are commonly
known as Normal: Type I (LH), Chrome: Type H (CrO2),
Ferrichrome
(FeCr}, and Metal: Type IV (Metal), and they
each
require specific bias, level, and equalization
settings
for optimum performance. The K-220 provides a tape type
selector which gives you the proper bias, level, and equaliza-
tion settings according to which type you have selected.
*
The
K-220 does not have the required setting for
Ferrichrome
{FeCr}
tape, since this tape formulation
is not widely used, Should you use a Ferrichrome tape,
it should
be recorded
and played
back at the Normal!
(LH) settings. This will result in an unnatural high fre-
quency emphasis. But this effect may be compensated
for somewhat by adjusting the tone controls of your
amplifier.
m
PROTECTION
YOUR
RECORDING
All cassette tapes are provided with erasure protection
noles to prevent recorded tapes from being accidentally
erased. There is a smal! tab covering the hole on each
cassette, and it should be broken off with a screwdriver
after recording a tape. Without this tab covering the hole,
it is impossible to record on that tape again; thus, you can
keep any recorded tape for as long as you wish without
fear of accidental erasure. Should you wish to use a cassette
tape protected.in
this way
for later recording, simply
covering the hole with scotch tape will permit erasure and
re-recording.
Break off tab with
screwdriver,
scotch tape
e
TAKING
UP SLACK IN THE TAPE
Slack in the tape inside of the cassette shell can be cor-
rected by simply inserting a pencil into one of the spools
and winding it until all the slack is taken up,
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STORAGE
OF YOUR CASSETTE
After putting a cassette back into its case, store in a loca-
tion away
from exposure to direct sunlight, humidity,
high temperatures, and magnetic fields (away from televi-
sion sets, speakers, etc.). High temperatures and humidity
will damage the tape itself, while exposure to magnetic
fields may cause a loss of recorded material.
E
MAINTENANCE
OF YOUR
K-220
After using your K-220 for a certain length of time,
it is possible that the sound of your tapes may deter-
lorate with fading, vibration, or noise as a noticeable
result, This is caused by an accumulation of dirt or
dust
on
the heads,
capstan,
or pinch
roller, and
magnetization of the heads. It is advisable to periodi-
cally clean and demagnetize the heads and to clean
the capstan and pinch roller. Use a commonly avail-
able cotton swab and head cleaning solution to do
this, or use a special head cleaning tape. Head demag-
netizers are also commonly
available.
*
When cleaning the heads, be careful not to apply
unnecessary
pressure.
When demagnetizing
the
heads, be sure to follow the instructions of the
head demagnetizer carefully.
For better access to the head assembly, the cassette
compartment
cover
is detachable
by pulling
upward
on it after it has been opened, To re-attach
it, reverse the same procedure,
Rec/PB head T
Eac
n
Capstan
VW
VW
fi
fi
Erase head
'S
Pinch roller
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