Record Button Latch Linkage - Sony AV-3600 Service Manual

Pulley)
from
the top of the
motor
shaft.
9.
Note the position of the
hum
belt (the steel
band
that
surrounds
the motor). Loosen the
two
screws
that
apply tension to the
hum
belt
and remove
the belt.
10.
Install
the
hum
belt
on
the
new
motor. Position
the
mounting
screws
as
shown
in Fig.
4-18.
Make
sure that
the
hum
belt straddles
the
two end
bells
equally.
1
1
.
Install
the top
(knurled) drive pulley
on
the
upper
motor
shaft.
Space the
bottom
edge of the pulley
about 4
mm
from the top of the motor.
12.
Insert
the screws with
spring
washers (PS
4x8)
through the
mounting
holes
at
the top of the
chassis.
13.
Put the
motor
in place
beneath the
chassis
with
the leads
coming out toward the
bracket.
Make
sure
that the
upper
pulley
is
inside
the foop of the
Irwil
Fig.
4-18. Installation
of
the
motor
hum
belt
capstan
drive belt.
Thread
the screws installed in
Step 12
into
the
motor end
bell.
14. Install
the screws in the
Terminal Block Bracket
(into the
lower end
bell).
15.
Tighten
all
screws.
16.
Check the Capstan Drive Belt to
make
sure
it is
placed properly
on
the Flywheel.
17. Install
the
lower
drive pulley.
Refer to Step
4
for
the
proper
position.
18.
Slide the plastic sleeve
over the
motor
leads.
Solder the
motor
leads to
the following
tie
points:
black terminal
3
of the terminal strip
white terminal
5
of the terminal
strip
green
common
lug of
C701
19. Install
the
Rotary Head
Drum
Assembly
drive
belt.
20.
Operate the
motor and check
the
FORWARD,
FAST
FORWARD,
and
REWIND
operations.
Check
the
running position of the lower
drive
belt
as
directed
in
Section 4-4.
5-14.
RECORD BUTTON
LATCH LINKAGE
1.
Check
that the
RECORD
and
AUDIO DUB
buttons can be pushed and locked only
in
the
STOP
and the
PAUSE
modes.
2. If
the latch
does not
operate correctly,
proceed
as follows.
3.
Make
sure that the Record Button
is
clear
of
the
Audio
Set
Lock
Bar.
Clearance should be
be-
tween
0.1
and
0.3
mm.
Bend
"A"
withL
a
pair
of
pliers as
needed
to
obtain the
correct
spacing.
Refer to Fig. 4-1
9.
4.
Push the
RECORD
Button.
Check
that the
iide
switches
on
the
V2,
A,
and
SV
circuit
boards
are
actuated.
5.
Push
the
AUDIO DUB
Button.
Check
that
the
slide
switch
on
the
A
circuit
board
is
actuated.
If
the switches
do
not operate
correctly,
proceed
as follows.
6.
Check
for 2
mm
clearance (or
less)
betveen
Slide Plate
B
and the
split
nut with the
AUDIO
DUB
Button
released.
7.
Turn
the
split
nut of
the Slide
Switch Lever
tca,d-
just
the stroke of
Slide Plate C.
If
necessary,
bend
the
Slide
Switch Lever with
a pair of
plkr^-
8.
Adjust the
Slide
Switch
Springs
if
necessary m/til