Tandy 1000 SL Technical Reference Manual page 450

Note: This item is applied only for a model with a variable resistor for
asynmetry adjustment.
(a) Key in "DD" and adjust the variable resistor,
R l
on the
PCBA
MFD
control so that the asymmetry takes the minimum value. Since the
asymmetry changes at every measurement, rough adjustment will be
done.
(b) The variable resistor shall be so adjusted that both asymmetry for
side 0 and side 1 heads take the minimum value. Refer to Fig.220 in
item 2-3-2.
(c) Key in "F".
(12) If the value in item (9) is out of the speci.fied range on a model
without variable resistor, or if the adjustment in item (11) cannot
be done sufficiently, refer to item (10) of "General method".
-
34313
-