Sanyo MCD-Z5F Service Manual page 7

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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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