Tandy 1000 SL Technical Reference Manual page 446

I f t h e r e i s some f l u x s o u r c e s n e a r t h e
F D D
s u c h a s magnet, t r a n s -
f o r m e r , motor, Brown t u b e , m a g n e t i z e d i r o n p l a t e , e t c . , t a k e it
a p a r t from t h e
FDD.
Then measure t h e asymmetry a n d a d j u s t a g a i n .
(b) I n f e r i o r d i s k :
R e p l a c e t h e work d i s k w i t h a new o n e .
( c ) I n f e r i o r head:
R e p l a c e t h e head c a r r i a g e
A s s ' y
a c c o r d i n g t o i t e m 3-5-1.
( d ) I n f e r i o r
PCBA MFD
c o n t r o l :
R e p l a c e t h e
PCBA
a c c o r d i n g t o i t e m 3-5-7.
-3434
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