Specifications

WITE32 Release Notes Version 3.20
Figure 23: Reset Index Skew
4.2.3 Servo Calibration Dialog Box Modifications
The Servo Calibration dialog box is changed in the WITE32 version 3.20. Figure 24 shows the Servo
Calibration dialog box as it was in WITE32 version 3.11. Figure 25 shows the same dialog box of WITE32
version 3.20. The differences between the old and the new dialog boxes are highlighted and enumerated by the
reference numbers. The following changes has been made:
• The Calibrate Main Servo checkbox in the Main Servo frame (refer to reference number 1) and the Micro
Actuator frame with all its controls (refer to reference number 2) are removed as obsolete.
• The Program WR Offset and Optimize Servo Range checkboxes (refer to reference number 3) are moved
from the Main Servo frame to the Setup frame.
• New control the Filter combo box is added to the Setup frame (refer to reference number 4). This control
defines which filter has to be used in servo calibration procedure. This control is required for systems with
heads and media designed for perpendicular recording. For such systems you have to use a programmable
differentiator for servo calibration, while the current system filter might be a low pass filter.
• An appearance of the Frequency Balance text box is changed for the Servo-3 test systems (refer to reference
number 5). For such systems this control shows a row of 16 columns instead of one coefficient for Servo-2
systems. These columns graphically represent ratios for 16 frequencies relative to the maximum frequency
amplitude.
Guzik Technical Enterprises 49