8.6 Read/Write Circuit
C141-E133-02EN
8-7
8.6
Read/Write Circuit
The write/read circuit consists of a head IC unit (in DE), write circuit, read circuit, and interface
circuit. Figure 8.3 is a block diagram of the read/write circuit.
8.6.1
Head IC
The head IC is mounted inside the DE. The head IC has a preamplifier and a write current driver,
and has a write error detection function. Each channel is connected to each data head, and is
switched by a serial port. If a write error, such as a head short-circuit or head disconnection is
detected, an error signal (WUS) is generated.
8.6.2
Write circuit
The write data is converted into the NRZ data (WDT by Hard Disk controller), and is sent, together
with the Write clock (WCLK) signal, to the write circuit. The NRZ data is converted into 32/34 RLL
code by the encoder circuit, and is written to the disk.
Summary of Contents for MAN3367FC - Enterprise 36.7 GB Hard Drive
Page 1: ...C141 E133 02EN MAN3735FC SERIES MAN3367FC SERIES DISK DRIVES PRODUCT MAINTENANCE MANUAL ...
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Page 21: ...Contents C141 E133 02EN xv Glossary GL 1 Abbreviations AB 1 Index IN 1 ...
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Page 66: ...Installation Requirements 4 10 C141 E133 02EN Figure 4 10 SCA2 type connector ...
Page 110: ...Principle of Operation 8 8 C141 E133 02EN Figure 8 3 Block diagram of read write circuit ...
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