Sanyo DC-X850 Service Manual page 10

CD PLAYER MECHANISM
1
ADJUSTMENTS
(b)
Replacement of the spindle motor
. First, prepare the new turntable ( 401-1 ) and new special
washer ( 401-4 ) for replacement.
The removed turntable will be deformed by the heat of
the soldering iron, and cannot be reused.
. Prepare dial-type calipers.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(c)
(1)
(2)
(3)
(4)
(5)
The attached bonding material can be dissolved by using
a 60W soldering iron to heat the shaft at the upper part
of the turntable for about one minute.
The turntable can then be
removed from the shaft by very
carefully applying
force upward at the center of the lower
surface of the turntable.
Remove the two screws ( 401-2 ) and remove the spindle
motor (401-5).
Attach the special washer ( 401-4 ) to the spindle motor.
Clean the spindle motor's shaft.
To clean them, use a soft cloth soaked in isopropyl alcohol.
Apply a small amount of a mixture of the "Three Bond
2001" and "2015F" bonding materials to the motor's shaft.
Install the turntable as shown in the figure.
2
mm
l-- ~Three Bond
Z!I'
401-4 J
8mm
Secure the turntable by pressing gently.
Be sure to wipe away (by using a piece of cloth, or similar
material) any bonding material coming out of the hole.
Replacing the pick-up
Insert the pick-up rails ( 404) into the-base chassis. ( 401-3 )
If the Iaches ( x 2 ) of the base chassis ( 401-3) are missing
when the pick-up rails
have
been installed, first wipe the
tips of the rails with alcohol.
After the pick-up has been replaced, apply grease
""e
(FLOIL G-474B) to the ~%~,q sectio;s.
The pick-up P.W. Board pattern is "shorted", as shown
in the figure, so that the new pick-up will not be
susceptible to the effects of static.
Set the pattern to
"open" after the pick-up
has been
replaced.
401-1
TURNTABLE
H:
17.15mm
+
PICK-UP RAIL
404
W
-401-1
5z-m!E#
( SHORT) (OPEN)
,.. -
.-..
413
..A
\
',,
(BE SURE AT THIS TIME,
NOT TO TOUCH ANY OTHER PART.) :
. . ,.
-9-