Tandy 1000 SL Technical Reference Manual page 421

Head load command TRUE
TP7
o r
TP8
I I
Head l o a d command
( S e t t l e d a t
50ms)
Head unload command FALSE
t
-Spike
n o i s e i s allowed.
TP7 o r TP8
\Residual read l e v e l
(Unload l e v e l )
Head unioad command
( F i g . 3407) Read waveforms a t head loading/unloading
( 1 5 ) I f t h e value i n i t e m (61, (111, (121, o r ( 1 4 )
i s
o u t of t h e s p e c i f i e d
range, a d j u s t according t o t h e f o l l o w i n g procedure.
( a ) Execute items ( 3 ) through ( 1 0 ) .
(b) Loosen t h e unload a d j u s t i n g screw u n t i l t h e unload l e v e l i s observed
a t l O O m s e c a f t e r t h e unload command.
Refer t o d o t t e d l i n e i n Fig.3407.
( c )
Tighten t h e a d j u s t i n g screw l i t t l e by l i t t l e and s e a r c h t h e screwing
p o i n t where t h e unload l e v e l e x a c t l y d i s a p p e a r s a t l O O m s e c a f t e r t h e
unload command.
( d ) Make t h e head m v e t o t h e innermost t r a c k .
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3409
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