Sharp FDD-412A - Page 98

FDD412A/B
(t) Noise (carried on data) (u) Noise (upon medium removal)
il | re
Fig.
5.29
Fig.
5.30
(v)
Noise
(upon
medium
removal)
(w)
Noise:(static
electricity
noise)
Table 5.6
Corresponding
to Item 5.2.4
Symptom Probable Cause
Error only Same with other | Noise within FDD Chekes on FDD
with medium media
mounted = ‘ sis
No error with Defective media Checks on FDD that wrote
other media data
Error without 50/60Hz sync Power supply Checks on power supply
media section defective | section
High frequency External noise Checks on noise sources
Noncyclic|
Error
only
with
medium
mounted
Static
electricity]
III-6
,
noise
Error without media Noise within FDD Chekcs on