Technics SL-3300 User Manual

2 Adjustment for automatic start and return positions
(See Fig. 27.)
Should the tonearm not function correctly, make adjustments
according to the following procedures.
Adjustment for automatic start position
(Remove
the rubber cap.)
In cases
where the stylus tip descends outside of the record
-Rotate clockwise .
In cases
where the stylus tip descends onto halfway of a recorded
piece
-Rotate counterclokwise.
Adjustment for automatic return position
(Remove
the turntable mat.)
In cases
where the tonearm tends to return before the playing has
finished
-Rotate clockwise .
In cases
where the tonearm fails to return after the last groove of
the record
-Rotate counterclockwise.
3 Speed adjustment (with pitch-control knobs)
(See Fig. 28.)
Strobe dots are set on the rim of the turntable platter accord-
ing to the power-line frequency and the speed of the records.
Make adjustment , referring to the strobe-dot indication.
1 Set the speed select knob to the speed to be adjusted.
2 Release the arm clamp and move the tonearm toward the record .
The
strobe-illuminator / pilot lamp will light up and the turntable
platter will rotate.
3 While
turning the pitch-control knobs either to the "+" side or
"-" side, adjust so that the strobe dots of the turntabl e platter
look as if they were stationary. This represents the correct speed.
-8-
50Hz
60Hz
Strobe-illuminator
Strobe dots
"+" direction
The speed of the turntable platter will incr ease. Turn the knob
in this direction if the strobe dots seem to be "falling back"
i.e. seem
to be moving counterclockwise . When the dots appear
to be stationary, turntable speed is accurate .
"-" direction
The speed of the turntable platter will decrease. Turn the knob
in this direction if the dots seem to be "running ahead" ; i.e.
seem
to be moving clockwise , until they appear stationary.
Note:
Strobe dot pattern
• The
strobe-illuminator / pilot lamp of this unit employs the
standard commercial power source . The frequency of such
power source , when actually measured , has a fluctuation of
about 0. 2% .
As
such a fluctuation of the power source af fe cts the strobe
illuminator , the strobe dot pattern also seems to fluctuate
to a certain extent. But the unit is not affected by these fluctua-
tions of the power source, since a DC motor is employed.
In other words , rotation of the platter will be constant. and
slight shifts in the movement of the dots simply reflect normal
drift in the power-source frequency.

Technics SL-3300 Specifications

General

Drive Type	Direct Drive
Motor	Brushless DC motor
Effective length	230 mm
Overhang	15 mm
Stylus pressure adjustment range	0 to 2.5 g
Speeds	33, 45 rpm
Platter	Aluminum die-cast
Tonearm Type	Universal
Rumble	-75 dB (DIN-B)
Cartridge weight range	4-10 g
Wow and Flutter	0.025% (WRMS)
Signal to Noise Ratio	78 dB