Tandy 1000 SL Technical Reference Manual page 470

(b) When conventional
SKA
i s used:
Key i n "0" following t h e o p e r a t i o n o f i t e m (11). The s i d e i s changed
a l t e r n a t e l y by a d e p r e s s i o n o f "0" key d u r i n g t h e execution o f E3
command. When s i d e 1
i s
s e l e c t e d ,
SIDE
1 i n d i c a t o r o f t h e
SKA
t u r n s
on.
(13) Confirm t h a t a l l t h e misalignment v a l u e s a r e w i t h i n t h e following range.
Misalignment value: Less t h a n 230%
(14) Depress "F" key.
CSTOP)
(15) I f t h e value i n i t e m (13) i s o u t o f t h e s p e c i f i e d range, a d j u s t t h e
t r a c k alignment according t o t h e f o l l o w i n g procedure.
( a ) Loosen t h e two f i x i n g screws
o f
t h e s t e p p i n g motor a l i t t l e .
( b ) I n s e r t t h e alignment adjustment j i g o r M 3
screw
from t h e back s i d e
o f t h e F D D
as shown
i n Fig.3419.
( c )
Key i n "E3" and a d j u s t t h e j i g o r
M3
screw so that t h e
DATA
i n d i c a t o r ,
XXXX
( % )
shows t h e s m a l l e s t value. The s t e p p i n g motor moves l i t t l e by
l i t t l e when t h e j i g o r t h e screw i s
turned.
(d) Repeat t h e a d j u s t i n g o p e r a t i o n i n
i t e m (c)
a l t e r n a t e l y f o r s i d e
0
and
s i d e 1 heads u n t i l t h e both misalignment t a k e t h e smallest v a l u e .
Refer t o i t e m (12).
(e) Tighten t h e two f i x i n g screws of t h e s t e p p i n g motor l i t t l e by l i t t l e
t o o b t a i n t h e value w i t h i n 220% on t h e
DATA
i n d i c a t o r when t h e screws
a r e t i g h t e n e d w i t h t h e s p e c i f i e d t o r q u e .
( f ) Remove t h e alignment d i s k .
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3458
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