.-,...,.
. 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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