JLR-10 Instruction Manual.pdf - Echomaster Marine Ltd.

JLR-10 GPS Compass
4.7 Adjusting Contrast and Backlighting
This function adjusts contrast and backlighting in all screen displays.
(1) Press .
This action displays the screen for changing the contrast and backlighting.
(2) Turn to select the desired contrast.
Range of contrast selection: 00 to 15 (default value: 07)
(3) Press . Each press of the key toggles the setting between High and Low.
Backlight setting: HI/LOW (default)
(4) Press or wait for 5 seconds to return to the previous display mode.
4.8 Setting the Heading
When the power supply to the Processing Unit is switched ON, the position fixing will be started automatically,
and the heading will be calculated in about three minutes.
For information on entry operations given below, see Section 4.6, "Basic Menu Selection Operations"
4.8.1 Manually Setting the Heading
Normally, initial settings need not be made because the true heading is displayed after position fixing.
However, if the heading is already known using a gyro compass etc., and has to be matched with that heading,
it is possible to set the heading manually.
Do not set the pitch or roll, only the heading, because doing so may cause errors in the heading.
● Display example
[Heading] display mode
(1) Press in the “ HEADING ” display mode.
This action displays “ HEADING MENU ”.
(2) Turn to select [TRUE HEADING] and press .
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