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ANQBS
Portable AC/DC Tape Recorder
movEL
fA R-1 10
SERVICE MANUAL
SANYO
ELECTRIC
CO., LTD.
INTERNATIONAL
DIVISION
:
SANYO
ELECTRIC
TRADING
CO.,
LTD.
OSAKA,
JAPAN
SPECIFICATIONS
"ransistor
complements
--+--+--- 2SB303C
Ist amplification
stage
2SB186
2nd amplification
stage
2SB186
3rd amplification stage
2SB186
4th amplification
stage
2S8B272
2
Output
stage
2SB187
Oscillator
for recording bias
2SB217
Voltage regulator
Other elements used --+-+++++++- 18188 x2 (Diode)
For level meter &
Automatic
level control
SDT-06 x1 (Thermistor) For temperature
compensation
Automatic
level
control
SV-30x2 (Diode)
RD-9AX1
(Zener diode)
Recording system
AC biasing, double track
Erasng
SYSEEM
cee
iece eee es eee
er rete nee ete ereere
nee
eren neta ernest en etees DC
erasing
DISASSEMBLY
INSTRUCTIONS
To
remove
the amplifier and mechanism
from
the cabinet.----
1.
Rotate the pinch roller fixing screw
in anti-clockwise
direction
and remove.
Then pull the pinch roller upward and remove.
Pull the head cover and take it out.
2.
Invert
the
tape
recorder
and remove
four
(+)
screws
by
rotating
them anti-clockwise.
Then
remove
the back lid.
3. Remove
all 6 (+) screws coated
with red paint by turning them
anti-clockwise.
4, The amplifier and
mechanism
can
now
be
taken
out
of the
cabinet.
HOW
TO ADJUST
THE MECHANISM
When
the
tape
recorder
fails
io
respond
to
the
movement
of
controls; such as insufficient functioning of rewinding or forwarding,
slackening
of recording tape when
the control is moved
from 'stop'
to 'playback',
or
excessive
tension
is applied
to tape
at every
function----+- make
the following adjustments.
Undistored,
maximum
output
powers sss-sssrreesereee
terres Undistorted
0.8W
Maximum
1 W
Power
requirement::+:+<++--+-++- 9-volt DC
(D-size flashlight battery x6)
110-117 & 220-240V,
AC
50 & 60%
Tape
speed
and
Recording
time(with
5 inches reel)
1-7 in (4.75cm)/sec 2 hours
3-34 in (9.5 cm)/sec
1 hour
Tape reel
ciccecssscsrerssreeseeteeseeneneeeneeeceatens Maximum 5 inches reel
Foward & Rewind time::-1:1++--ees-eerrereeee Forward
Up to
3 minutes
Rewind
Up to 2.5 minutes
Frequency response <--:-s1+--seeeere
rere teer eet
100-7000 % at 3-% in/sec
100-4000 % at 1-7% in/sec
Loudspeakers+-++++1+-1eserreee 2-34"
4-14" permanent dynamic speaker
Voice coil impedance 8 ohms
Signal-to-noise
ratio
«<1:
reese
ert te cree errr teeter teeta tees Over
than
40 db.
Dimensions:
11-14"
widthx
10-14" depth
x 3-54"
height
Weiight-ss:srerrreerereeereeree
tenes 8.6 lbs. (3.9kg) approx.
(excl batteries)
Tools & Gauges Required
To make the adjustment of mechanism
practically
no tools are
needed.
However,
in
order
to
ascertain
the
accuracy
of
mechanism
as to whether it is operating
as originally
designed
the following gauges are to be used:
Type of Gauges
Extent of Measurement
(Coverage)
Tester
DC
10V, DC
300mA
Range.
'
0—300
g r .
0-100
g r .
| Tension
Gauge
0-1 Kee
0-3
Ke
|
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