Sony AV-3600 Service Manual page 32

series
with the
green lead of the
motor.
If line
voltage
is
present
and the phasing
circuit
is
correct,
but the
motor does
not
turn,
replace the
motor
as
follows.
1
.
Stand the machine
on
its
left side.
2.
Cut the
white and black
motor
leads
at
the
ter-
minal
strip.
Cut the green
motor
lead
at
the
ter-
minal
of phasing capacitor
COOl. Leave 1/8"
insulation
on
the stubs of the leads
remaining
on
the
terminal
strip
and the phasing
capacitor.
The colored insulation
will
aid in locating
the
correct tie
points for the
new
motor.
3.
Remove
the drive belt for
the
Rotary Head
Drum
Assembly.
4.
Inspect
the lower
drive
pulley
on
the
motor
shaft
and note the position of the fan
on
the
shaft.
The
bottom
of
the fan
hub
should be almost
flush
with the lower end of
the
motor
shaft.
5.
Loosen
the
set
screw in the
lower
drive pulley
and
remove
the
drive
pulley
and
fan.
Note:
Do
not
remove
the gray plastic fan
from
the lower drive pulley.
6.
Remove
the
Terminal Block Bracket
for
the
Motor
Assembly.
7.
Set the
Function
Lever
to
PAUSE.
Hold
the
motor with one hand and back
out the four
Phillips-head screws
from
the top of the
chassis.
See
Fig.
4-18.
8.
Remove
the
upper
(knurled) drive
pulley (Capstan
capstan
motor
pulley
Fig. 4- 17.
Brake timing adjustment
4-14