Sharp FV-1710 User Manual

CAR
ANT.
ADJUSTMENT
(AM
Alignment)
Signal
generator
Receiver
Adjust
Step
Band
Connection
to
receiver
|
Input
signal
frequency
Dial
setting
|
Remarks
1
|
MW|
The
S6
should
be
switch-
|
Exactly
600KC.
(400%,
|
600KC
Adjust
for
maxi-
|
L28
ed
over
to
Car
Antenna
|
30%,
AM
modulated.)
mum
output
on
and
connect
signal
gene-
the
output
meter
rator
through
the
Car
connected
to
the
|
Antenna
dummy
(See
|
speaker
voice
coil
NOTE
C)
to
the
Car
lugs.
Antenna
jack.
2
|
MW|
Same
as
step
1.
Exactly
1400KC.
(400%,
|
1400KC
Same
as
step
l.
C120
30%,
AM
modulated.)
3
|
MW
|
Repeat
steps
1
and
2
until
no
further
improvement
is
obtained.
4
|
LW
|
Same
as
step
1.
Exactly
180KC.
(400%,
|
180KC
Same
as
step
l.
L27
30%,
AM
modulated.)
|
cea
ah
Nig
Ss
Same
as
step
1.
Exactly
350KC.
(400%,
|
350KC
Same
as
step
l.
C118
30%,
AM
modulated.)
o1
LW
6 | LW | Repeat steps 4 and 5 until no further improvement is obtained.
NOTE
A.
Check
alignment
of
receiver
antenna
coil
by
bringing
a
piece
of
ferrite
(such
as
a
coil
slug)
near
the
antenna
loop
stick,
then
a
piece
of
brass.
If
ferrite
increases
output,
loop
requires
more
inductance,
change
loop
inductance
by
sliding
the
bobbin
toward
the
center
of
ferrite
core
to
increase,
or
way
to
decrease
inductance.
B.
1)
Connect
VTVM
(0.1
volts
range
DC
scale)
between
test
point
10
and
chassis
ground.
Set
VTVM
zero
volt
center.
2) Adjust discriminator secondary. core (orange) for 0 volt on VIVM.
3) Change signal generator frequency 10.7MC+100KC and —100KC approximately.
4)
Adjust
discriminator
primary
Core
(green)
for
balanced
peaks.
Peak
separation
should
be
approximately
200KC.
C. Car ant. Dummy
4
t
{
t
I
t
{ t I
( I
I {
ee |
IS pfd
65 pfd |
| CAR ANT.JACK
(R=80-R’)
l
R’=
out
put
impedance
SIGNAL
GENERATOR.
of
signal
generator
SSS ne ee ee, ee ee
CAR ANT. DUMMY
Figure 2

Sharp FV-1710 Specifications

General

Brand	Sharp
Model	FV-1710
Category	Radio
Language	English