Sharp FDD-412A Service Manual page 35

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FDD412A/B
Phase
R
Fig. 2.29
Spindle Motor Operating Principles
'
|
wih
ayes
een nues
output
Hy
voltages
Hy
|
| 5
Y |
1
4
!
'
Motor
ROO
Press PEE
PEER
coil
Is
a=
p=
4
currents | qq
canes
Fe ert
(4)
Write
and read
—29—

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