Sansui FR-4060 - 3. ADJUSTMENTS; 3-1. Adjustment of Stylus Pressure; 3-2. Adjustment of Bias; 3-3. Adjustment of Auto-In, Auto-Return (25 cm and 30 cm disk)

3. ADJUSTMENTS
3-1. Adjustment of Stylus Pressure
(See Fig. 3-1, 3-2 and 3-3)
1) Turn the Bias Contro! clockwise until it stops. The
built-in Inside Force Canceler will then become in-
operative. ;
Take the stylus cover off the cartridge, free the tone-
arm from the tonearm rest, and move the tonearm
over to the right of the tonearm rest.
3) Turn and move the main weight forward or back
to balance the tonearm horizontally first.
2
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Fig. 3-1
NO
me
4) With the tonearm balanced horizontally, turn only
the stylus pressure dial until its zero mark falls into
line with the weight
shaft line, without | Fig. 3-2
moving the = main |
weight itself.
5) Now turn the main weight counterclockwise (as
seen from the front of the turntable) until the re-
quired stylus pressure indication comes into line
with the weight shaft line. If you are using the
cartridge supplied, set the weight on the suitable
point between 1.5 and 2.
Stylus Pressure Dial
3-2. Adjustment of Bias (See Fig. 3-4)
Adjust this control to the same weight marking as the
stylus pressure you have selected.
3-3. Adjustment of Auto-In, Auto-
Return (25cm and 30cm disk)
(See Fig. 3-5, 3-6 and 3-7)
1)
The
adjusting
screw
“A”
in
Fig.
3-7
is
one
to
adjust
the
position
of
AUTO-IN(of
setting
down
the
tonearm
on
the
surface
of
the
disk)
The
adjustin
gscrew
“B”
in
Fig.
3-7
is
the
one
to
adjust
the
position
of
AUTO-RETURN
(of
lifting
off
the
tone
arm
from
the
disk).
2)
When
the
screw
“A”
is
turned
clockwise,
the
timing
of
AUTO-IN
will
become
sooner.
To
the
contrary,
when
it is
turned
counterclockwise,
the
timing
of
AUTO-IN
will
become
later.
Make
adjustment
of
the
screw
in
such
a
way
that
the
tip
of
the
stylus
will
touch
the
middle
way
of
the
lead-in
groove.
3)
When
the
screw
“B”
is
turned
clockwise,
the
action
of
AUTO-RETURN
will
become
later.
To
the
contrary,
when
it
is
turned
counterclockwise,
the
action
of
AUTO-RETURN
will
become
sooner.
Make
adjustment
of
the
screw
in
such
a
way
that
AUTO-RETURN
operation
is
carried
out
at
the
middle
way
of
the
lead-out
groove.
Fig. 3-5
finishing groove
lead-out
groove
lead-over
groove
modulated groove lead-in groove
Adjusting Screw "'B”’
(For Auto-up position)
Adjusting Screw “A”
(For Auto-in position)
Adjusting
Screw '‘A”’
Hole
Fig. 3-7
3-4. Adjustment of Auto-Return
(17cm disk) (See Fig. 3-8)
1)
The
adjusting
screw
“C”
as
hown
in
Fig.
3-8
is
the
one
to
adjust
the
position
of
AUTO-RETURN
of
17cm
disk.
In
case
that
the
function
of
AUTO-RETURN
of
25cm
and
30cm
disks
is
normally
operative,
but
the
17cm
is
not,
turn
the
screw
“C”
in
Fig.
3-8,
and
adjust
it.
When the timing of AUTO-RETURN is later, turn it
clockwise.
To
the
contrary,
if
it
is
sooner,
turn
it
counterclockwise, and make adjustment of the screw
in such a way that AUTO-RETURN operation is
carried out on the central position of lead-out groove.
2)
Carry
out
the
locking
paint
to
the
abovementioned
screws
after
adjustment.
Fig. 3-8
‘Reed Switch
Adjusting Screw ''C”’
3-5.
Adjustment
of
Manual
Mechanism
(See
Fig.
3-9)
Please
make
the
adjustment
for
lift-down
speed
of
the manual lifter as below.
1)
The
adjusting
nut
as
shown
in
Fig.
3-9
is
for
changing
lift
down
speed
in
MANUAL
mechanism.
2)
When
the
nut
is
turned
clockwise,
the
lift
down
speed
will
be
faster.
Ss
3)
To
the
contrary,
when
it
is
turned
counterclockwise,
the
lift
down
speed
will
be
later.
4)
The
speed
in
MANUAL
operation
should
be
ad-
justed
as
same
as
the
speed
in
AUTO
operation.
(There
is
no
any
nut
to
adjust
the
speed
in
AUTO
mechanism.)
5)
Carry
out
the
locking
paint
to
the
abovementioned
nut
after
adjustment.
Fig. 3-9
Adjusting Nut Timing Motor
Mechanism Chassis