Japan Radio Co. JLR-7900, Instruction Manual

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When the arrival or anchor alert occurs, the alert icon is displayed.
Arrival Anchor
4.12.5 Setting XTD Alert
An alert occurs when own ship exits the route.
1. Refer to "4.15.1 Change to a maintenance mode" and display the maintenance menu.
2. Press
the key to select "ALARM" and "XTD" in order.
3. Press the key to select "XTD" or "OFF," and press the key.
4. Set an buzzer sound and screen back light by referencing "4.12.8 Setting a buzzer sound and
screen back light”.
When the XTD alert occurs, the alert icon is displayed.
XTD
XTD icon
4.12.6 Setting DGPS Alert
An alert occurs when switching is done from GPS positioning to DGPS positioning or vice versa.
Even if generated by DGPS alert, " " icon and pop-up are not indicated.
It is reported that the audible tone changed the positioning state in one time of "Pi" and. Moreover,
screen lighting is unchangeable at the time of alert generating.
1. Refer to "4.15.1 Change to a maintenance mode" and display the maintenance menu.
2. Press
the key to select "ALARM" and "DGPS" in order.
3. Press the key to select "ON → OFF", "OFF → ON", "OFF  ON,", "OFF" and press the
key.
4. Set an buzzer sound and screen back light by referencing "4.12.8 Setting a buzzer sound and
screen back light”.
ON

OFF: An alert will occur when DGPS positioning switches to GPS positioning.
OFF

ON: An alert will occur when GPS positioning switches to DGPS positioning.
OFF

ON: An alert will occur when DGPS positioning switches to GPS positioning or vice versa.
Procedure
Procedure
Arrival icon
Anchor icon