MAINTENANCE
LUBRICATION
The
mechanism has
been
lubricated
at
the
t actory
Contact
the
ALPI NE store where
you purchased
the
unit if any
service is
required.
CLEAN ING
THE
TAPE HEAD
(See
Figure
7 on
page
22)
If a loss in
brilliance
(high frequency response)
is
noticed.
the
tape
head probably
needs
cleaning.
Open the
cassette
door of the
cassette
compartment when cleaning the head by means
of
a
cotton
stick
Wipe lightly
the
surface
of
the
head
with the
co
tton stick
as
shown in figure
below
If
the
head
is
fou led
heavily
,
soak the
stick with
a
little alcohol
. and
carefully
wipe the
surface
of the head.
CLEANING THE CABINET
Wipe the
cabinet
with
a
soft cloth.
Do
not
attempt to
clean
the
cabinet with
chemicals
such
as
benzine or
thinner, because
it may
damage
the finish.
SPECIFICATIONS
Recording System
Tape
Speed
Wow
&
Flutter
..
.
4 -track.
2-channel
stereo
4.76
cm/sec. (1-7/8 ips)
.
0.06
%
(WRMS)
Signal-te-Noise
Ratio .....
..
.
..
....
.
....
....
..
63dB
(Dolby NR on)
WRMS, Cr02 Tape
Total Distortion
.
.
.
.
. .
.
.
.
.
.
.
. .
.
. .
. . .
.
.
.
.
. .
.
.
.
.
.
..
1.5
%
(
1 kH
z
OVU)
Frequency
Response
.
.
.
. .
.
30 Hz~ 15 kH1
(FeCr,
Cr02),
30
Hz
~ 14 kH
z
(NOR)
Bias Frequency .
.
. .
. .
.
.
.
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
105
kHz
1
nput
Sensitivity
/
lmpedance
.
.
. Dl N:0.1 mV /krl.,
Mie:
0.3
mV/200
ri.~
2
k
ri.,
Line
:
100 mV/50 k
ri.
Channel Separation
.
. .
.
. . . . .
.
.
.
. . .
. .
. .
.
.
. . . .
.
. .
.
.
.
. .
. . .
.
55
dB
(
1
kH
z)
Output
Level/lmpedance
D
IN:7QOmV/2 kr!,
Line :700 mV/50
kr!, Headphone:
1
mV/8r2
Fast Wind. Rewind
T
ime
.
..
...
...
.
.
.
.
.
..
.
...
.
.......
.
.
.
.
...
80 sec. (C-60)
Power
Consumption
.
.
.
.
. .
.
.
.
.
.
. . .
.
.
.
.
. .
.
. .
.
. .
.
.
.
.
.
. .
. .
. .
..
...
..
.
20
W
Power
Source
. .
.
.
.
.
.
. .
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.
.
.
.
. .
.
.
.
.
.
.
.
110/
127
/
220/240V,
50/60Hz
Semi-conductors
.
...
...
..
...
24 Transistors. 2
FETs,
21
Diodes.
2 Zener Diodes, 1 Thyristor
Dimensions
.
.
.
.
.
.
.
.
.
.
. .
.
.
.
. .
. .
.
.
.
.
.
. ..
390
(W)
X
150
(Hl
X
240
(D)
mm
Weight .
. . . .
.
.
.
.
.
.
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.
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.
.
.
.
.
5.5
kg
•
Speci fications and
charac
teristics are subject
t
o change
without p rier
notice.
-
7-