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Dual C 450 M Instrucciones De Manejo página 11

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Selecting tape
type
Using
the
two buttons
Fe
and Cr you
can select
the
various
tape types:
Button
Fe
For
all
Fe
(lronoxide,
Fe203)
tapes
Button
Cr
For all Cr (Chromdioxid, Cr02)
tapes
Button
Fe
and
Cr
For
all
FeCr
(double
layer)
tapes
N/lusic
cassettes
are
marked
on
the
label
as
to
which
switch
position
Fe
or Cr
is
to
be
used.
When
no
information
or
designation
is
available
press
the
Fe
button.
DOLBY NR
-
Noise
reduction
The Dolby Noise
Reduction
System
causes
a
considerable
reduction of the
tape-caused noise
thus
increasing the
dynamic
range
of
recording.
When
playing
Dolbyised
cassette recordings
which
are marked
with
thesymbol
DO
or
Dolbyised home recordings
pressthebut
ton
marked
Dolby
NR. The
light
next
to
the
button
indicates
that
Dolby
has
been
turned
on.
Counte.r
with
memory feature
The
counter
is used
for
registering
and
rapidly finding
certain
positions
on
the tape.
lt
counts during
record and
playback
as
wel I
as
during
fast
forward and
reverse.
We recommend
setting
the
counter
to "000"
at the
beginning
of
a
tape
by
pressing
the
button
marked RESET.
lf
Vou then
note
the
position of the counter
at
the
beginning
of
each
piece
you
can
then at
a later
ti me
find all
recordings
on the
cassette
quite
quickly
When
the
button
marked MEMORY
is
pressed
thetape transport
is
automatically stopped
at counter
reading
"000"
during
fast
reverse
<<
.
Thus
a
certain position
on
the
tape can
rapidly
be
refound during
record and playback.
Fast
tape
transport
>)
Direction
of
tape movement
left
to
right
{(
Direction
of
tape
movement right
to
left
The
functions "fast
forward"
>>
and
"fast
reverse"
<<
are
used
to
rewind and
to find
certain positions
on the
tape.
The
unit
turns
off
automatically at
end
of
tape
or,
when
the
button
MEMORY
is pressed,
at counter
reading
"000".
"
Fast
forward"
or "fast
reverse"
override
the functions
Start
>
and
RECORD
Start
Recording and
playback
are
started
by. pressing
the
button
>
.
PAUSE
For
recordieg preparation
as
wel
I
as
for
short interruptions
of
recording
or
playback
use
the button
marked PAUSE.
The
operational
status
is
not
changed.
Automatic
tape stop
The
equipment contains
a
electrical
tape monitoring
device
which initiatesthe auto
stop.
This unit
functions
independently
of
tape.foil
and cassette.
lf
operational
defects such
as
jammed
cassettes
occur,
the
unit
automatically
switches
off
the
drive.
A cassettewhich
often trips
the
feature
is
unusable.
Occasionally
a
cassette
can
be
wound
up
too
tightly.
lt
is
then
usually suf-
f
icient
to
completely rewind the
tape.
CASS/STOP
-
Removing
the
cassette
Tape
transport
is stopped
during
recording
and
playback by
presing
the button
CASS/STOP.
Pressing
it
a
second time
opens
the
cassette
holder and
the
cassette
can be
removed
by
pulling
it
out
the
top.
The
function
of the key PAUSF
remains
u
nchanged.
Home recording
Proceed
in the
following
manner
for
this:
"
Set the type
of
tape
used, using
the
tape selection switch
(Fe,
Cr,
FeCr)
"
Press
the
button
DO
LBY
N
R
"
Set
the counter
to "000"
*
Press
the
button
PAUSE
*
Press
the
button
record and
)
simultaneously.
The
light indicator
RECORD shows
readiness
to
record.
Setting record
levels
You
can make recordings
from
a)
AI
I
sources
connected
to
the amplifier
(tuner,
turntable).
The signal
is
automatically fed
to
the
jack
TAPE
b)
A
low
or
medium
-
impedance
mono
microphone
having
an
impedance
of
200
-
1000
Ohms
and
a
1/4
inch coaxial
plug.
Connection
is
made
to
the
jack on the
front
panel
marked
MICRO.
Signal
is
automatical
ly
recorded on both
tracks.
Stereo microphone recording
can be made
using
the
5--pole
DIN jack
on
the
rear side.
The level
is
set
using
the
controls
RECORD
LEVEL.
The
con-
trol
marked
LEFT
is
assignedtotheleft
channel
andthecontrol
marked RIGHT
the
right
channel. The level
is
optimum
when
the
loudest
passages
ofthe
recording
cause
the
green
light
diodes
of
the PEAK LEVEL
INDICATOR
to
be
ail
tit
(0
dB
limit)"
Occasional
flickering
of
a
red
lightdiode
is,
however, notserious.
Starting the recording
BV releasing
the key
PAUSE
you start
recording.
Erasing
During
recording
the recordingsalready
on
the
cassette
forthat
particular
tape
direction. Should you
desire
to
erase
something
-
without
si
multaneously
rerecording
-
play the
cassette once
through
as
if you were recording
but
by placing the
level
controls
RECORD
LEVEL
to "0".
All
compact
cassettes have
two
holes
on the
backside which
are closed
by
plastic
tabs.
You
can
protect
your
own
recordings
against
inadvertant
erasure
by
breaking
these tabs.
Should
you
desire
to
rerecord
the
tape then
you only
have
to
close
the
hole
with
a
small
piece
of
tape.
Please
note
that
the
additional
openings
for
CrO2 cassettes
must
not
be
covered.
Prerecorded tapes
are already protected
against
inadvertant
erasure in
this
man
ner.
Maintenance Notes
Occasional
cleaning and
demagnetization
of
the
heads
and
drive
elements
will
assure
quality
and long
life.
The
necessary
cleaning sets are available
at you.r
dealer. The
use
of
these
sets
should
be
taken
from
the
directions.
Technical Data (typical
value)
Tape
speed
Deviation
from
correct
speed
Flutter
and
wow
To
D
lN
for
recording/reproduction
Weighted
RMS
Frequency
response
(ref.
to
DIN
tolerances)
Standard
Fe
tape
Cr02 tape
FeCr tape
Signal-to-noise-ratio
(weighted)
CrO2tape,
with
Dolby
NR
Channel separation
at
i
000
Hz
belween stereo
channel
s
in
opposite direction
Erasure
at
1000
Hz
4.75 cmls
!
0.8
o/o
!
0.15o/o
!
0.06
o/o
25
-
14,OO0
Hz
25
-
15,000
Nz
25
-
16,000
Hz
63
dB
35
dB
70
dB
70
dB
Inputs (sensitivity
at
0
dB)
Microphone
('l
/4"
coaxial lack)
DIN
connector
Output
Fast
winding time
for
C
60
cassettes
Power
requirement
0.3
mV/
5
kOhm
0.3
mV/l0
kOhm
560
mV/
5
kOhm
105
s
approx.
15
VA
11

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