JVC JL-F50 User Manual

JL-F50
When the main gear notch moves away, both the gears
come into engagement, tripping the returning cycle.
After
one
complete
revolution
of
the
main
gear,
it
will
return
to
the
position
as
shown
in
Fig.
11.
The
main
gear
will
stop
rotating
while
the
platter
gear
is
still
turning.
As
the
main
gear
turns,
the
engagement
shoe
and
the
lower
trip
are
returned
by
the
outer
edge
of
the
platter
gear
to
the
original
position
just
before
the
rotation
of
the
main
gear
is
finished.
The
trip
lever
also
returns
to
its
original
position
on
the
boss
on
the
face
of
main
gear
halfway
through
the
main
gear
rotation.
4-(5) Repeat mechanism
Setting
the
REPEAT
knob
to
one
of
the
positions
“1”
through
'’6’’
will
cause
the
tonearm
to
return
from
the
end
of
record
to
the
beginning
lead-in
position
and
play
it
again.
The
same
process
will
be
repeated
up
to
six
times,
depend-
ing
on
the
setting.
Setting
the
knob
to
“R”’
will
cause
the
tonearm
to
play
the
record
over
and
over
again
endlessly.
Lead in lever
Switch lever Driving gear
Arm lever stud
idler gear
Sub gear
Micro switch
Ratchet cam
(Attached to
Repeat Knob)
Reset plate
Fig. 15
As
shown
in
Fig.
15,
when
the
ratchet
cam
is
turned
in
the
direction
of
arrow
(a)
(toward
the
position
‘’R’
on
the
REPEAT
knob),
the
part
@)
of
the
reset
plate
is pushed
away
by
the
outer
circumference
of
the
ratchet
cam
until
its
part
is
moved
as
far
as
the
dotted
line.
Thus,
the
lead-in
lever
on
the
driving
gear
is
always
returned
by
the
reset
plate
and
pushes
the
arm
lever
stud
back
to
bring
the
arm
lever
to
the
lead-in
position,
and
the
record
is
played
again.
At
the
‘’R”
position
the
hook
on
the
sub
gear
passes
over
the
toothless
section
of
the
ratchet
cam,
so
the
cam
does
not
turn.
If
the
ratchet
cam
is
set
to
one
of
the
positions
‘’1’’
through
“6”
on
the
REPEAT
knob,
the
ratchet
cam
and
the
hook
on
the
sub
gear
engage
after
every
time
one
record
has
been
played,
as
shown
in
Fig.
16.
Thus
the
cam
turns
one
step
for
each
cycle.
After
comple-
tion
of
the
specified
number
of
cycles
the
ratchet
cam
and
hook
do
not
engage,
and
the
reset
plate
returns
to
the
position
as
shown
in
Fig.
15.
As
a
result,
the
lead-in
position.
The
tonearm
is
returned
to
the
arm
rest,
and
the
power
is
turned
off
when
the
switch
plate
presses
the
micro
switch.
No. 2411
Switch plate
Switch plate
Sub gear
Toothless section-
(two teeth)
Fig. 16
4-(6) Reject mechanism
When
the
reject
button
is
depressed
in
the
play
mode,
the
reject
rod
moves
in
the
direction
of
arrow
(a).
This
movement
causes
the
reject
plate,
trip
lever
and
engagement
shoe
to
move
in
the
direction
of
arrow
(c),
whichi
changes
the
cycle
and
start
operation.
Main
gear
Switch
lever
| 0
Trip lever 4p
© /
(c)
Reset plate
Cy Ratchet cam
Reject
plate
Ube
iN
~~
(Attached
to
Engagement
(d)
\c
(>)
Repeat
knob)
shoe a (bk Bw. S
ime)
Micro switch
Reject lever (B)
Reject
lever
(A)
Rod
(REJECT)
(a)
Fig. 17
If
the
REPEAT
knob
is
at
‘1’’,
the
reset
plate
engages
with
the
section
(A)
of
the
ratchet
cam,
and
the
switch
lever
|
moves
in
the
direction
of
(d)
to
push
the
micro
switch,
turning
the
power
off.
4-(7) Cueing mechanism
Depressing
the
‘‘UP”
button
actuates
the
micro
switch
and
rotates
the
cueing
cam.
When
the
cueing
lever
is
pushed
by
cam
A),
the
rod
moves
in
the
direction
of
arrow
a,
thus
rotating
the
elevator
cam.
The elevator is raised by cam C.
The
cueing
cam
makes
a
quarter
rotation
to
turn
the
micro
switch
off
with
cam@).
Depressing the ‘‘DOWN” button causes the cueing cam to
rotate the same as in lifting. The rod then moves in the
direction of arrow b and the elevator is lowered.
Cueing cam
Micro has
Tone arm
\_ Elevator ‘
Cam®@®
=/
vv
Driving
gear
\
t Oe
ueing lever
Cam © g
Elevator cam
i
;
fd
¢
{
i
a
i
4
'
3
4
4
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JVC JL-F50 Specifications

General

Brand	JVC
Model	JL-F50
Category	Turntable
Language	English