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2.1.3  Structure and the functions of knobs 
Four knobs are available. 
The knobs are classified into three main modes based on the operation.  One type is a knob 
knob knob 
knob 
operation mode
operation modeoperation mode
operation mode and other two are a short mode
short modeshort mode
short mode and a long mode
long modelong mode
long mode, similar to the key operations. 
 
In knob operation mode, the values change according to the rotation of the knob.    The short mode 
and the long mode are the same operation as for the keys. 
 
The function of each knob is described below. 
[AUTO-TUNE] knob 
Short mode :  Switches to automatic/manual. 
Long mode :  When the power supply is set to ON while this key is pressed, horizontal 
orientation display is set (12 o'clock). 
Knob operation :  The equipment is tuned when the knob is set to the center. 
[AUTO-RAIN] knob 
Short mode :  Switches to automatic/manual. 
Long mode :  When the power supply is set to ON while this key is pressed, vertical 
clockwise rotation display is set (3 o'clock). 
Knob operation :  The control function reaches the maximum when the knob is turned to the 
full position in the clockwise direction and the minimum when the knob is 
turned to the full position in the anti-clockwise direction. 
[AUTO-SEA] knob 
Short mode :  Switches to automatic/manual. 
Long mode :  When the power supply is set to ON while this key is pressed, horizontal 
reverse orientation display is set (6 o'clock). 
Knob operation :  When the knob is turned to the full position in clockwise direction, the 
control function reaches the maximum level and when the knob is turned 
to the full position in the anti-clockwise direction, the control function 
reaches the minimum level.     
[GAIN/PL] knob 
Short mode :  Switches a transmission pulse width. 
Long mode :  Displays a panel 1/2 switching menu while the power is supplied. 
  When the power is not supplied, vertical anti-clockwise rotation display is 
set if the power supply is set to ON (9 o'clock). 
Knob operation :  When the knob is turned to the full position in the clockwise direction, the 
sensitivity reaches the maximum level and when the knob is turned to the 
full position in the anti-clockwise direction, the sensitivity reaches the 
minimum level.