Chapter 4 Operation Method 
 
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4.7  Initial Setting of the Heading Angle - [Gyro I/F] Button 
If the ship's heading angle data input the synchronous or step signals and the ship's speed data 
input the pulse signals, the DAU is required. The gyro interface board is optional. 
 
[NOTE] 
If the DAU is added, the CAUTION alert occurs until set the ship's heading angle. 
 
 
1.  Tap the [Gyro I/F] button on the HOME screen. The GYRO SETUP screen is displayed. 
   
Figure 4-56 GYRO SETUP screen 
HOME screen 
GYRO SETUP screen 
Figure 4-55 CAUTION: Gyro I/F uninitialization