Technics SL-10 - Servo and Electrical Adjustments; Minimum Servo Circuit Sensitivity Adjustment; Electrical Center Adjustment of Arm; Servo Sensitivity Adjustment

Minimum sensitivity
adjustment of
servo circuit
Fully swing the arm to the left
by hand, then read the
voltage.
(*2) About 0.4V
Electrical center
adjustment of
arm
Fix the arm at the mechanical
center, and then adjust the
hexagonal screw to obtain the
central voltage of the difference
between *1 and *2.
Turning the screw clockwise
Se tesdu decreases the voltage
Turning it counterclockwise
. increases the voltage
The voltage must be adjusted as
follows
*4 *92
(7.6 V —0.4V)
a + 0.4V = 4.0V
Note: *1 and *2 vary depending
on the set.
1)
Hexagon. wrench |
(x 1.5 M) fis:
i=
Servo sensitivity
adjustment
After the above adjustment, connect
the 2-pin connector between
TP30 and earth in the adjusting hole
Turn R449 counter clockwise
so that the VTVM (or circuit
tester) indicates 0.72V.
Offset angle
adjustment
Subsequently, put a 1 mm pitch
record disc on the turntable to
start performance.
Turn R447 counterclockwise
so that the VTVM (or circuit
tester) indicates 0.6V.