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Technics QUARTZ SL-J300R Service Manual page 5

Direct drive automatic turntable system
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How to remove the tonearm and cueing
|
plunger
|
Ref. No.
Ref. No.
6
| How to remove the tonearm part
Procedure
Procedure
Sub plate
196
697
How to remove the tonearm drive motor
—__—_——|
Procedure
195
to let the arm drive rope come loose.
5. Remove the motor cover.
Remove the 2 screws (@ , @) of the sub-plate.
Remove the guide rail from the sub-plate.
Pull out the guide rail.
*The pin should be inserted from the upper side of the tonearm.
Marks on P.C.B. and lead wire colors.
Arm drive motor with motor cover
|
}
ao
Ore
One
=
How to remove the offset angle sensor
Step 4
To offset
Procedur
1» . :
Lead wire
'angle iat
1. Unsolder the 3 leads from the offset angle sensor.
ire
{ é
fe)
=
begs
es erate
dame
|
2. Remove the adjustment screw. (After assembly it is
y | =
be ecient
1.
Unsolder the 2 leads trom
the plunger.
necessary to adjust the offset voltage.)
SOK
s
}
2. Turn over the tonearm unit and remove the screw.
Holder
Feast y
Swe
(See the figure below.)
Black | ]Orange
=
"Me
Tocueing
Todisc
plunger
groove sensor
Tonearm unit
Roller cover
Push the pin with
the needle or the like.
{}
Offset angle sensor
_
Fig. 3
Step 1
Arm drive rope
Record groove sensor
Cueing plunger
Offset angle sensor
Rest switch
3. Turn the worm gear and make sure that the tonearm
i
moves.
Arm position
Arm positionsensor
— sensor

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