JVC JL-A15 Service Manual

Setting
Up
|
Operation
of
Automatic
Mechanism
1.
Remove
main
weight
(A).
2.
Remove
two
platter
protectors
(B),
screw
(C)
and
caution
tag
(D).
Change
cycle
mechanism:
3.
Untie
viny!
ribbon
(E).
1.
During
playing,
the
notch
of
the
main
gear
position
4.
Pass
the
belt
behind
the
shift
lever
and
place
it
on
the
relative
to
the
turntable
spindle
gear
is
as
shown
in
Fig.
motor
pulley.
2.
As
the
projection
is
away
from
the
engagement,
the
5.
Place
the
platter
pat
provided
on
the
turntable
platter.
main
gear
does
not
rotate
even
though
the
turntable.
2.
As
playing
proceeds,
the
trip
slide
moves
toward
the
center
of
the
turntable
following
the
movement
of
the
tonearm
as
shonw
in
Fig.
3.
3.
The
engagement
is
very
easy
to
move
as
it
simply
rests
on
the
lower
trip.
On
the
music
section
of
the
record
groove
the
engagement
moves
so
slightly
that
it
is
returned
by
the
tip
of
the
projection.
Consequently,
the
turntable
spindle
gear
does
not
engage
with
the
main
gear
and
thus
does
not
trigger
the
auto-return
operation.
4,
When
playing
ends
and
the
pick-up
cartridge
enters
the
lead-out
groove
which
is
spaced
out,
the
engagement
advances
more
than
it
is
returned
by
the
projection.
Because
of
this,
the
engagement
is
pressed
by
the
projection
as
shown
in
Fig.
4,
causing
the
main
gear
to
turn
and
engage
with
the
turntable
spindle
gear.
Thus
the
change
cycle
is
started.
5.
During
the
return
operation
the
engagement
and
lower
trip
which
have.
moved
are
returned
to
their
original
position
by
the
reject
lever
coming
into
contact
with
the
bottom
of
the
lower
trip.
At
this
moment
the
switch
lever
operates
with
the
help
of
the
main
gear
cam,
Fig.
1
switching
off
the
power
just
before
the
rotation
should
stop.
This completes the automatic cycle.
Projection
Engagement
Turntable spindle gear
Turntable
gear
i
Fig.
2
Fig.
4
Tonearm
lift
and
return
mechanism:
1.
When
the
main
gear
starts
to
rotate
at
the
end
of
playing,
the
return
lever
rotates
under
the
action
of
the
main
gear
cam
to
press
the
elevator
cam.
The
upward
movement
of
the
elevator
cam
is
directly
converted
into
movement
of
the.
elevator,
lifting
up
the
tonearm.
(Fig.
5
2.
.
tonearm
is
returned
by
the
arm
lever
the
end
of
which
presses
it
as
the
main
gear
rotates.
(Fig.
6)
Return Lever
Elevator Cam
Fig. 5
JL-A15
No. 2374

JVC JL-A15 Specifications

General

Brand	JVC
Model	JL-A15
Category	Turntable
Language	English