Tandy 1000 SL Technical Reference Manual page 447

(B-2) Check a n d a d j u s t m e n t p r o c e d u r e ( C o n v e n t i o n a l SKA method)
(1) Connect a n c o n v e n t i o n a l SKA a c c o r d i n g t o
i t e m
3-2-4 a n d
s e t
t h e FD PWR
s w i t c h t o t h e PSA s i d e .
( 2 ) Key i n "B1
F".
( 1 F DUTY)
( 3 ) C o n n e c t a n o s c i l l o s c o p e t o t h e DOUT t e r m i n a l o f t h e
SKA.
O s c i l l o s c o p e
range:
DC mode, 2V, 0.1
%
O.2psec
(4) I n s t a l l
a
work d i s k .
( 5 ) S t a r t t h e s p i n d l e m o t o r by key "5". (MON i n d i c a t o r t u r n s o n ) .
(6)
E x e c u t e d r i v e
s e l e c t
by key "0". (DSO i n d i c a t o r t u r n s o n ) .
(7) Key i n "CO" a n d c o n f i r m t h a t t h e TRACK i n d i c a t o r becomes "00".
(RECALIBRATE)
(8) Key i n "Cl"'. (SEEK TMAX)
( 9 ) Key i n "D4". (WRITE/READ LEVEL PRE 1 F )
(10) Measure t h e asymmetry
as
i n Fig.3415.
SKA
DOUT
1 7 1 0
( F i g . 3415) Measurement o f asymmetry
(11) Confirm t h a t t h e a v e r a g e asymmetry
i s
w i t h i n t h e f o l l o w i n g r a n g e .
-
3435
-