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.- ,... ,.
.
CD PLAYER ADJUSTMENTS
/-
+
f
?
( BE SURE,
AT THIS
TIME,
NOT
TO TOUCH
ANY OTHER PART. )
mm
(c)
(1)
(d)
(1)
(2)
. . .-.
(3)
>
(4)
J
(5)
(6)
(7)
(e)
(1)
(2)
.'.-.:..,
.
..' .- . .
L
/
Sled motor replacement
(BE SURE. AT THIS TIME,
NOT
See illustration
at right.
TO TOUCH
ANY OTHER PART. )
Checking
the operation
of the
CD mechanism
Disconnect
the socket (for
the
sled motor power supply) from
the printed-circuit
board.
Apply a voltage of DC
2.0 V
to the sled motor's
Ml-1
terminal.
Measure the current during sled motor operation.
The direction of movement of the pick-up (outer groove or
inner groove) can changed
by
changing the battery polarity.
The current during sled motor operation
varies
according
to the positional
relationship
of gears
(M8and
M9).
.
If the current exceeds
40
mA ,
remove the
pipe ( M7 ) and gears ( M8, M9 ).
Apply a small amount of's FLOIL ( G-474B ) bonding
materials to the chassis
shafts. '-'
Install the pipe and gears as shown in the illustration.
. .
.
.
. .
.
.. . .
.
M?
M8
M3
MS
Resetting
the pick-up
to the home position
The limit switch is switched ON by the projection of the rack
gear secured to the returned pick-up, afler which the sled
motor continues to operate (by the circuit) for approximately
20-30
milliseconds
; there is then again a reverse
operation,
and movement
to the position
at which the switch
is switched
OFF.
Rotation continues
for about 20-30
milliseconds
after the
switch is switched
OFF, and then the pick-up
stop at home
position.
.
.-
.
.
-4-
--u
~,
Mll
—
Direction
of pick-up
movement
Sled motor current
Outer groove
40 mA or less
. Inner groove
40 mA or less
.-
.
. .
-- Ma
"9
--- $B
&
0
0
LIMIT
SWITCH
(@
Q
'--
PICK-
.
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