Mz3500 – Sharp MZ-3500 User Manual
Page 57
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2) VFO circuit configuration
MZ3500
The VFO circuit has the following capabilities.
(1) Two modes; MFM and FM.
(2)
The VFO circuit operation is suspended during the
SYNC field located before the ID field and data field.
(3)
After suspention, the VFO circuit will synchronize
with the read data (timing is affected by a speed
change in the FDD). Fluctuations in an individual bit
that may be seen (peak shift are ignored.
VFO circuit
+ 5 V R t A D D A T A
- 62
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