Sony D-5 - Page 26

)-5 /D-50
D-5/D-50
2-3. MECHANICAL ADJUSTMENTS
Backlash Check
retainer A
Measuring Locations: 8
Outer
circumference:
Where
dimension
A
in
the
FOP
figure
at
right
(space
bet-
,
|
gearC KK x)
Ae
ween
FOP
and
press
plate
6
is
3-
LY,
i
B)
is
3-5
mm.
|
4
Middle:
Location
where
gear
C
engagement
point
rack
is at the center of the rack.
Inner circumference: Where dimension B at right
(space between FOP and re-
tainer A) is 3-5 mm.
Measuring Procedure:
1. Apply 3 V to sled motor lead and move the
FOP to the measuring location.(Refer to figure),
2. At each measuring location, check that there is
no
movement
in
the
directions
of
the
arrows
retainer
B
regulated
voltage
marked
9.
and
@
when
50g
is
applied
to
a
yee
fan-shaped tension gauge.
3. If there is movement, sled motor mounting
should be redone. (Refer to page 31, Sled
Motor Assembly.)
Switch position | Direction of movement | Switch position
inner to outer
circumference
Sled Motor Response Check
If the following check is not satisfied, replace the
sled motor (M902).
@ Minimum Activation Voltage Check,
1. Apply 1.5 V and check that the FOP moves
smoothly from the inner to the outer circum-
ference.
Next apply 2 V and check that the FOP moves
smoothly from the outer to the inner circum-
ference.
@ Sled Sending Current Check
1. Apply 3 V and move the FOP from the inner-
most to the outermost circumference. Check
that current value is less than 120 mA at this
time.
Next
move
the
FOP
from
the
outermost
to
the
stabilized
voltage
innermost circumference. Check that current
value is less than 150 mA at this time.
@ Sled Sending Time Check
Apply 3 V, and check that the time for the FOP to
move from the innermost to the outermost cir-
cumference and from the outermost to the inner-
most circumference is less than 5 seconds each.
Switch position | Direction of movement | Switch position
inner to outer
circumference
Direction of movement
outer to inner
circumference
Rotor Mounting, Thrust Adjustment
® Rotor Mounting
® clearance (0.35 +0,1 mm}
hs om
adjustment screw
chassis
turntable
Mount the rotor on the turntable shaft so that the
clearance A above is 0.35 +0.1 mm.
@ Thrust Adjustment
clearance B)
turntable
{2 +0.1 mm)
clearance
(2.8 0.1 mm)
chassis
rotor
screw lock
stator PC board adjustment screw
Adjust the adjustment screw so that clearance ©
and @above are as follows:
@®: 2 +0.1 mm
@: 2.8 0.1 mm
Lock the screw after adjustment.
ee
D-5 /D-50