Adjustments - Technics SL-1200MK2 Service Manual

)MK2 SL-1200MK2
: ig . 17
ADJUSTMENTS
(t )
appears stahonary at the pitch of ,611,
(2) appears stahonary at the pitch of " 3.3%
f3
f
appears
slat,
onary at the pitch o ;1 1
(4) appears stahonary at the pitch o3 3%
Fig . 19
Adjustment of the tonearm height (See Fig . 22 .)
The height of the tonearm can be adjusted up to 6 mm, and
a scale is provided on the adjust ring in 0 .5 mm increments .
Be sure to set the proper arm height using the adjust ring
scale and referring to the table .
For example, if the cartridge height is 17 .5 mm, the arm-
height adjust ring should be positioned at the intermediate
location between 2 and 3 on the scale . (See Fig . 22 .)
Caution :
Be sure to lock the tonearm by turning the arm lock knob
in the direction indicated by the arrow after finishing the
height adjustment for the tonearm .
Lubrication (See Fig . 23 .)
Apply 2 or 3 drops of oil once after every 2000 hours'of
operation .
The time interval is much longer than that for conventional
type motors (200-500 hours) .
Please purchase original oil . (Part number is SFWO 010 .)
Height of cartridge (mm)
(H)
Scale reading on the arm-height
adjust ring
15
0
16
1
17
2
18
3
19
4
20 5
21
lections
Pitch control (fine adjustment of speed) (See Figs .
want it .
18 and 19 .)
nto the
When the pitch control knob is located at the center of the
position after turning on the power, the green LED indicator
is lit showing the operating condition for the predetermined
~ension
speed (either 33-1/3 or 45 rpm) . The pitch control is variable
in a range of 0-±8% .
gimbal
Adjustment should be done on the basis of indicator scale .
recisely
Figures on the indicator show approximate percentages for
of
variable pitch control .
- ance
t center
When the strobe dots in 4 stages marked at the peripheral
f7
edge of the turntable appear to be stationary, variation of
mg
nt . Add
individual pitches is shown . (See Fig . 19 .)
icluding Note :
m com-
The strobe-illumination of this unit employs a strobe-illu-
today's
minator LED synchronized with the precise quartz fre-
ice MM
quency .
)pear in For fine adjustment of the turntable speed, be sure to
As, but
effect the adjustment according to the LED illumination .
m . This
The LED illumination is not synchronized with fluorescent
weight,
lamps .
iminum
Adjustment of arm-lift height (See Figs . 20 and 21 .)
vs head-
The arm-lift height (distance between the stylus tip and
record surface when cueing lever is raised) has been
adjusted at the factory before shipping to approximately
accom-
8-13mm .
re done
If the clearance becomes too narrow or too wide, turn the
adjustment screw clockwise or counterclockwise, while
pushing the arm lift down .
Clockwise rotation
braking
-distance between the record and stylus tip is decreased .
Counterclockwise rotation
is con-
-distance between the record and stylus tip is increased .
, rather
Note :
itor for
As the adjusting screw has hexagonal head, be sure to make
the adjustment while depressing the arm lift, or the screw
control
will not move freely .
eration .
Also be sure that the hexagonal head retracts correctly into
)n with
the arm lift when the latter is released .