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Technics QUARTZ SL-J300R Service Manual page 4

Direct drive automatic turntable system
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To remove the upper cabinet (dust cover)
1. Open the upper cabinet.
Remove the 2 plastic rivets by using a screwdriver.
Tilt the upper cabinet slightly as shown in the Fig. 1.
2.
3.
4. Pull out the cabinet as shown in the Fig. 2
=
Inside of the
- upper cabinet
To remove the 45 rpm adaptor
1. Remove the turntable mat.
2. Turn the 45 rpm adaptor counterclockwise.
3. Release the 2 claws.
Plastic rivets
To remove the cartridge
1. Place a disc on the turntable.
2. Turn on the power.
3. Press the start button.
4. Turn off the power when the tonearm moves to the 25
cm position, then open the upper cabinet.
. Remove the cartridge set-screw.
. Pull out the cartridge in the direction of arrows as
shown below.
oo
To remove the turntable platter
1. Open the upper cabinet.
2. Remove the turntable mat.
3. Lift the turntable.
Ref. No.
3
Procedure
293
Remove each screw to remove the following parts.
®
Reset switch
Screw @
® Cueing position adj. P.C.B......... Screw @
e Output terminal holder
Screw@
How to remove the lower side parts
oa
Output terminal holder
1. Remove the turntable platter.
2. Turn over the unit on a soft cloth.
3. Remove the 6 screws.
Caution:
Note the color of 4 springs, they must be reinstalled
to their original positions.
Ref. No.
4
How to remove the drive circuit board
To remove the power transformer
1. Remove the 2 screws (@, @).
XX
&
=
i
To remove he main cet boar
reat ovtn
—Y
RE
Se
awe
1. Remove the screws (@ ~ @).
s es.
=
=
1
AC IN socket
Deel
2. Remove the selector switch P.C.B.
Cueing position
ie Sooinet
3. Remove the main circuit board.
adjustment P.C.B.
.
4. Remove tie runner custion.
To remove the front panel
Stator frame
=H
1. Remove the power switch button.
:
a
"a
+—®
©
2. Remove the main circuit P.C.B.
ii
allie
al
o>
in
ern
ower
transformer
.
ere
aes ere nea Se
tee
eS
Main circuit board
(3
LL
Power switch P.C.B.
bgt lee ie Absedeean eed
:
26) @
Screwdriver
* When removing the power switch button,
el
ae
be sure to turn off the power switch.
To remove the front panel switch buttons
:
Otherwise the power switch may be
1. Remove the front panel.
Oo
2
Re
|
damaged.
2. Release the claws.
es
= wy
Nw
ie Site
2. Remove the screw @.
3. Remove the operation buttons.
Selector switch
an
=
=
=<
3. Pull out the power switch P.C.B. as
*When
removing the operation buttons, release
P.C.B.@
Front panel
'
®
ee
lifting up the lead wire side.
the claws with care.
Claws"
Claws
es
0
®
(3)
Power switch button
=
2a
2,
ey)
oe
3 re
"oS
At
SsSSs2525= a
==
i
Start/stop button
/
=
Program button
Procedure
29304
1. Remove the 3 screws (9 ~ ®).
2. Cut off the stopper with nippers, and remove the 4
setscrews (@ ~ @).
Drive circuit board

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