JRC JHS-770S Instruction Manual page 151

5. UP/DOWN arrow keys
These keys are used for channel selection, or menu settings.
6. Waterproof connector cap
When using this unit, remove this cap and connect the handset to the internal connector.
7. Display
Displays the transmission channels, menus, etc.
8. CH16 key
Sets the radiotelephone channel to CH16.
9. PWR/ENT key
In addition to turning on the power, this key is used to determine the menu items, or to obtain the access right.
10. DIM (brightness control) key
This key cycles the display brightness between bright, medium, dark, and off. If pressed at the same time as
the PWR/ENT key, it activates sleep mode.
Note
・ The brightness level will not be saved. So when the unit is powered off and on, this level
will be at the default medium setting.
・ The channel selector cannot change the channel region mode (ITU/USA/Canada/Inland
Waterway). When changing the channel region mode, use the controller (NCM-1770).
・ The following alarm will be displayed if an error is detected in the channel selector.
When the alarm is displayed, contact JRC or our agency.
Alarm Number
E1 Detected the memory (ROM1) error.
E2 Detected the memory (ROM2) error.
E3 Detected the serial communication test error at powering on.
E4 Detected the serial communication error.
Options Operation
Contents
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