Table of Contents
Advertisement
4. ADJUSTMENTS
4.1
TONEARM
WILL
NOT
RETURN
TO
THE
ARM
REST
If the pin at the back of the turntable is not (or
incorrectly)
engaged
with
the
plastic
arm
the
tonearm
will
not
return
to the
arm
rest.
The
probable causes of the trouble are as follows;
(a) The tip of the plastic arm bends downward.
(b) The pin is bent.
(c) The pick-up lever is incorrectly mounted.
In case (a) or (b) is responsible for the trouble,
correct the curve of the plastic arm or the bend of
the pin. If necessary; replace the plastic arm as the
case may be.
In case (c) is the cause
of the trouble, adjust the
screw provided at the tip of the pick-up lever so
that the pick-up lever will push the aluminum arm
when the head of the tonearm reaches the point of
130¢ from the center of the turntable (Fig. 8).
4.2
TONEARM
RETURNS
TO THE
ARM
REST
BEFORE
THE
RECORD
FINISHES
The pick-up lever is incorrectly mounted. The best
solution to this trouble is to replace the plastic
arm.
This trouble also occurs when the plastic arm fails
to
move
smoothly.
Oil
the
automatic
return
mechanism.
4.3
TONEARM
RETURN
SPEED
IS
INCORRECT
If the return speed is too slow, first insure that the
cause is not due to dirt.
Adjust spring (2) tension to give the correct spring,
increasing tension to increase speed and reducing
tension to decrease speed (Fig. 9).
m
turn the nuts.
>
i:
PL-55xX
4.4
TONEARM
STOPS
BEFORE
IT
REACHES
THE
ARM
REST
This trouble
occurs
when
the plate (1) and the
plate (2) fail to move smoothly.
move smoothly.
If not, replace them.
4.5
TONEARM
HITS THE
INSIDE
OF
THE
ARM
REST
See if the head of the tonearm rises 5 ~ 10mm off
the turntable
with the FUNCTION
lever set to
OFF.
If the tonearm
rises incorrectly,
adjust the
height
of the arm
rest by means
of the screw
provided on the arm rest base; if not, adjust the
height
of the elevator
rubber by means
of the
adjust screw on the elevator arm shaft (Figs. 10,
11).
| UP AND DOWN
SCREW
ARM
REST BASE
Fig. 10
Fig. 11
Advertisement
Table of Contents
