Motor Does Not Stop - Pioneer PL-5 Service Manual

=» WITH THE RECORD SIZE SET AT 17cm, THE TONEARM IS
RETURNED TO THE ARM REST.
Detector lever and signal lever are
touching.
Detector lever is bent.
= AUTO OPERATION REPEATS
Detector lever and leaf spring (start
plate) are touching at the mechanism
stop location.
Leaf spring (start plate) is deformed.
= MOTOR DOES NOT STOP
Start panel is not moving properly.
YES
EV cam is warped.
The start plate spring is weak. (See
section 7)
The installation location of the PU
plate is incorrect.
The switch lever and switch locker
are not locking (See section 7).
Section7
In order to turn the power OFF, the PU plate
shaft touches surface (A) of the switch locker
pushing it over so it locks with the switch lever
turning the microswitch OFF (Fig. 4-7), If
the amount of push on the switch locker is insuf-
ficient, it can not lock with the switch lever.
With the tonearm locked in the arm rest, as shown
in figure 4-8, attach the PU plate precisely mid- switch lever
way between the first and second points from the
arm base scale mark counting away from you.
Fig. 4-7 Adjustment of switch locke:
Arm base
scale mark
Fig. 4-8 Adjustment of PU plat
43