Tandy 1000 SL Technical Reference Manual page 423

(B-2) Check and a d j u s t m e n t p r o c e d u r e
(SKA
method)
(1) Connect an SKA a c c o r d i n g t o i t e m 3-2-4 and s e t t h e
F D
PWR s w i t c h t o
t h e
PSA
s i d e .
( 2 ) I n s t a l l
a work d i s k .
( 3 ) U s e t w o c h a n n e l s of o s c i l l o s c o p e . Connect t h e 1st channel t o t h e
WUT
t e r m i n a l and t h e 2nd channel t o t h e
D I F
t e r m i n a l o f t h e SKA.
Apply n e g a t i v e t r i g g e r by t h e DOUT t e r m i n a l .
O s c i l l o s c o p e range, The 1st channel: DC mode, 2V, 2 h s e c
The 2nd c h a n n e l :
AC
mode, 0.5
%
lV, 20msec
Note: For t h e check and a d j u s t m e n t i n t h i s
i t e m , it i s r e q u i r e d t o set
t h e s t r a p s a c c o r d i n g t o
i t e m
3-2-4-8 (1).
( 4 )
Key i n "BC F".
(DRIVE SELECT o b s e r v a t i o n )
(5) S t a r t t h e s p i n d l e motor by key "5".
(MON
i n d i c a t o r t u r n s o n ) .
(6) Key i n
"CO"
and c o n f i r m t h a t t h e TMCK i n d i c a t o r becomes
"00".
(RECALIBRATE)
(7) S e l e c t t h e s i d e 1 head by key "4".
(SIDE 1
i n d i c a t o r t u r n s o n ) .
(8) Execute d r i v e select and head l o a d i n g by key
" 0 " .
( E O i n d i c a t o r
t u r n s o n ) .
( 9 ) Confirm t h a t t h e gap between t h e upper arm and t h e arm l i f t e r i s
l a r g e r t h a n 0.2m.
R e f e r t o Fig.3405.
(10) Key i n "C9" f o r a c o n v e n t i o n a l SKA
or
key i n "C9A" f o r SKA3.
(HEAD
LOAD
TIME).
-
3411
-