Teac FD-55 Series - 269

in read' output and a poorer SjN ratio due to the increased use of the
bandwidth. Disk interchangeability suffers as a result.
From these considerations it will be seen that bit shift should be
reduced by increasing the frequency characteristics of the FOO and the
minimum of write pre-compensation shoulä be used.
The simplest solution is to per form no write pre-compensation and the
FOO has been designed to provide reliability and sufficiently wide window
margin in this way_
When you use the write pre-compensation, be careful to use the value
less than ±250nsec for FD-55A ~ Fand less than±62.5nsec for FD-55G,
not to cause the undesirable effect by over compensation.
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