REPLACEMENT OF CD MECHANISM
3. Replacement and lubrication of the pickup
● Before replacement of the pickup, be sure to carefully read
the section regarding the pickup when the unit is moved or
transported.
(1) Remove the a pickup rail (CM2) with care fixing the latch
with way driver from bottom part of chassis (CM3-1 ).
(2) The pickup (CM9) can now be remove once the a pickup
rail (CM2) have been taken out.
● When removing or inserting the a pickup rail from or into
chassis, take care not to exert excessive force.
● If the pickup is reconditioned of replaced, be sure to wipe
the rails clean and also apply a coating of FLOIL (G-474B)
to there entire circumference and entire length. When ap-
plying the grease, do not allow any grease to adhere to
any other parts.
(3) Pass the a pickup rail (CM2) through the new pick up
(CM9).
. The
pickupp,w. Board pattern is “shorted”, as shown in
the figure, so that the new pickup will not be susceptible
to the effects of static.
. Set the pattern to “open”
after the pickup has been re-
placed
CV3
—CM8
I
I I 1. ‘“ /z2zz2//.
)
SHORT
4. Checking the action of the CD mechanism
5. Replacement of the sled motor
(1) Disconnect the socket (for the sled motor power supply) (1) Remove the two screw (CY1) and remove the sled motor
from the P. W. Board. (CM5).
(2) Apply a voltage of DC 2.0 V to the sled motor’s terminal.
CY1
(3) Measure the current during sled motor operation.
. The direction of movement of the pickup (outer groove or
inner groove) can changed by changing the battery polar-
ity.
CM3-1 –
(4) The current during sled motor action varies according to
the positional relatlonshiping of gears (CM7 and CM8).
(5) If the current exceeds 40 mA, remove the gears (CM7 and
e
,“
CM8).
CM5 ““”
(6) Apply a small amount of a
FLOIL (G-474B) bonding ma[eri-
als to the chassis shafts.
-6-
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