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GF-9090H
Sharp GF-9090H User Manual
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Should
it
become
necessary
at
any
time
to
check
the
alignment
of
this
receiver,
proceed
as
follows;
1.
Set
the
volume
control
(VR301)
to
maximum.
2.
Attenuate
the
signals
from
the
generator
enough
to
swing
the
most
sensitive
range
of
the
output
meter.
3.
Use
a
non-metallic
alignment
tool.
GENERAL
ALIGNMENT
INSTRUCTION
4.
Repeat
adjustments
to
insure
good
results.
5.
Set
the
position.
THE
INSTRUCTION
OF
FREQUENCY
ADJUSTMENT
(GF-9090H,
HB)
In
order
to
comply
with
FTZ
rule:
Nr.
358/1970,
please
fix
the
low
end
of
dial
frequency
(87.5MHz)
and
the
high
end
of
dial
frequency
(107.9MHz)
on
FM
band,
by
adjust-
FUNCTION
switch
(SW101G)
to
“RADIO”
ing
oscillation
coils
(L3
and
L4)
and
oscillation
trimmer
(TC4),
respectively,
as
illustrated
in
Fugure
35.
AM
ALIGNMENT
CHART
SIGNAL
GENERATOR
RECEIVER
t
CONNECTION
TO
RECEIVER
INPUT
SIGNAL
REQUENCY
DIAL
SETTING
REMARKS
(Refer
to
Figure
35)
ADJUSTMENT
Refer
to
Figure
27
Band
Refer
to
Figure
28
Exactly
455
kHz.
(400
Hz,
30%,
AM
modulated)
Exactly
510
kHz.
(400
Hz,
30%,
AM
modulated)
Coverage
Same
as
step
2.
L
Same
as
step
2.
Exactly
1650
kHz.
(400
Hz,
30%,
AM
modulated)
High
end
of
dial.
(minimum
capa-
city)
Low
end
of
dial.
(maximum
capa-
city).
High
end
of
dial.
(minimum
capa-
city).
Adjust
for
maximum
output.
Adjust
for
maximum
output.
Exactly
600
kHz.
(400
Hz,
30%,
AM
modulated)
600
kHz.
Same
as
step
2.
Adjust
the
AM
IF
transformers
(T101)
(T102)
Adjust
the
MW
oscillation
coil
(L9).
Adjust
the
MW
oscillation
trimmer
(TC107).
Same
as
step
2.
Adjust
the
MW
antenna
coil
(L7).
(See
Note
A)
Tracking
Same
as
step
2.
Exactly
1400
kHz.
(400
Hz,
30%,
AM
modulated)
1400
kHz.
Same
as
step
2.
Adjust
the
MW
antenna
trimmer
(TC104).
(See
Note
A)
Repeat
steps
2,
3,
4,
and
5
until
no
further
improvement
can
be
made.
Same
as
step
2.
Exactly
145
kHz.
(400
Hz,
30%,
AM
modulated)
Low
end
of
dial.
(maximum
capa-
city)
Same
as
step
2.
Adjust
the
LW
oscillation
coil
(L10).
Band
Coverage
Same
as
step
2.
Exactly
295
kHz.
(400
Hz,
30%,
AM
modulated)
High
end
of
dial.
(minimum
capa-
city)
Same
as
step
2.
Adjust
the
LW
oscillation
trimmer
(TC108).
Same
as
step
2.
Exactly
160
kHz.
(400
Hz,
30%,
AM
modulated)
160
kHz.
Same
as
step
2.
Adjust
the
LW
antenna
coil
(L7).
Tracking
Same
as
step
2.
Exactly
260
kHz.
(400
Hz,
30%,
AM
modulated)
260
kHz.
Same
as
step
2.
Adjust
the
LW
antenna
trimmer
(TC105).
Repeat
steps
7,
8,
9
and
10
until
no
further
improvement
can
be
made.
Band
Refer
to
Figure
29
Exactly
5.85
MHz
(400
Hz,
30%,
AM
modulated)
Low
end
of
dial.
(maximum
capa-
city)
Same
as
step
2.
Adjust
the
SW
oscillation
coil
(L8).
Coverage
Same
as
step
12.
Exactly
18.5
MHz.
(400
Hz,
30%,
AM
modulated)
14
High
end
of
dial.
(minimum
capa-
city)
Same
as
step
2.
Adjust
the
SW
oscillation
trimmer
(TC106).
9
11
Table of Contents
Names of Parts
2
Mechanical Adjustment
6
Pinch Roller Pressure Adjustment
6
Operation
6
Alignment Instruction
10
Equipment Connection
12
Replacement Parts List
22
Electrolytic Capacitors
23
Mechanical Parts
25
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Sharp GF-9090H Specifications
General
Brand
Sharp
Model
GF-9090H
Category
Stereo System
Language
English
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