Tandy 1000 SL Technical Reference Manual page 467

(h) Check and a d j u s t t h e track 00 s e n s o r according
to i t e m
3-4-13.
( i ) Check the track 00 stopper according
to i t e m
3-4-14.
(131 Release the I n v e r t and Add modes of t h e o s c i l l o s c o p e .
Alignment adjustment j i g
(Fig.3419) Adjustment of track alignment
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3455
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