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• ARM BASE ASSEMBllNG PROCEDURE
1. Attach
the controf ring to the arm base seato (The
contro! ring shouid be roated counterclockwise.)
2. Compietely tighten
!he
contro] ring, and
then
loosen
it
1.5--2.5 turns to set the scale to "3". (See Fig.
11)
IOpera!ing
Arm
I
Fig.
111
3. Hold !he arm base and set the red fine mark on the arm
base to the scale near "2", then tum ,he arm base
ciockwise. iSee Fig. 12)
Note:
Take care not
~o
aHow deflection of the ;xedetermined
positions of the contro!-r-iog-and---arm- base seato
---=
I
SL-1200MK
5. Rotate the contro! ring and make sure that !he arm base
shifts within the range of (}-6mm. {See Figs. 14 and 15)
If
it
does not shift within the specified range. me arm
base position is deflected. In that case, disassemble the
pa,ts and check as specified in step 3.
Fig. 14
j
;
-----+-------
t
î
I
1
1
-
!
!
I
Fig.1S!
I •
A[hJ'---U-S-T-U-e-N-T-O-F-C-A-N-C..,...e-LL-e-R----'
Fig. 12!
4. Adjust !he arm base sc th at !he red fine mark on the arm
base is set to !he scale "3" of the contro! ring. Next.
secure the positionîng base plate with two setscrews.
{See Fig. 13}
Fig.
131
SPRING POSITION
!f me arm body or PU base piate is replaced. Oe sure to set
the canceiler knoc to "0.5" and make sure that me can-
ceiler spring is in contact wit!"! the arm shaft. (See Fig. 16)
lf the cancel ier spring is deflected, adjust it as foHows:
1. Clamp the arm on the rest.
2. Set the cancelIer knob to "0.5".
3. Remove the PU base plate, adjust gear
G
so that me
canceHer spring is in me position of Fig. i6.
4. Mount the PU base plate onto the arm base and check
me spring positioo_
Fis. 16
1
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