JRC JMA-5204 Instruction Manual page 72

[FUNC] (Function Call) Key
Calls predefined signal processing setting when pressed.
The selection changes in the following sequence each time the key is pressed:
Function Off Function 1
Function Off
Holding down the key for two seconds or more displays the function setting menu.
See section 3.10.
[USER KEY1] (User Registration 1) Key
Directly displays a pre-registered menu position when pressed.
See section 3.5.19.
[USER KEY2] (User Registration 2) Key
Directly displays a pre-registered menu position when pressed.
See section 3.5.19.
[AZI MODE] [1] (Bearing Mode Select/1) Key
Selects the North-up (true bearing), Head-up (relative bearing), or Course-up bearing display mode.
This key serves as the numeric key
See section 3.5.7.
[MAP] [2] (Map Display/2) Key
Selects whether to display charts, shorelines or depth contours on the radar map.
This key serves as the numeric key
For displaying charts, see section 3.7.
[VECT R/T] [3] (Vector Mode/3) Control
Selects the TT vector display mode (true/relative).
This key serves as the numeric key
See section 5.1.7.
[TM/RM] [4] (True Motion/Relative Motion) Key
Switches back and forth between the TM display mode and RM display mode.
This key serves as the numeric key
See section 3.5.8.
[OFF CENT] [5] (Off Center/5) Key
Shifts the own ship's position within a desired direction (within 66% of the scope's radius) from the
scope's center to expand the display portion.
This key serves as the numeric key
See section 3.5.9.
[MARK] [6] (Mark/6) Key
Displays a mark at an arbitrary position or erases the mark on the display.
This key serves as the numeric key
See section 3.5.16.
[DAY/NIGHT] [7] (Day/Night Mode Select/7) Key
Selects a preset color and brilliance of the display screen.
This key serves as the numeric key
See section 3.3.4.
Function 2 Function 3
[1]
during menu operation.
[2]
during menu operation.
[3]
during menu operation.
[4]
during menu operation.
[5]
during menu operation.
[6]
during menu operation.
[7]
during menu operation.
2 5
Function 4