Lowrance electronic LMF-400 manual Screen

Tab pop up or highlight Set Threshold and press ENTER, to set a Trim Tab threshold. The threshold for Trim Tabs ranges from 3% to 50%. Stay-on Time: By highlighting Stay-on Time you are able choose how long the RPM, Engine Trim and Trim Tab pages will be displayed when their respective thresholds have been exceeded. To set the duration of each display, highlight STAY-ONTIME and press ENTER. The Set Time menu will appear, giving you the option to select a duration between 2 and 15 seconds. You need only set the Stay-on Time duration once since it will affect all three categories (RPM, Engine Trim and Trim Tabs).

Basic menu with Screen highlighted (left). Screen option menu

(center) with Set Backlight window (right).

Screen

To access the Screen menu:

1.Press MENU, choose SCREEN and press ENTER. There are three options from which to choose: Backlight, Contrast and Reverse Video. Adjusting Backlight:

1.Select BACKLIGHT and press ENTER to adjust the brightness of the backlight. A vertical adjustment bar will appear on the Set Backlight window. If more than one gauge is on the bus, it will automatically adjust the other gauge to the same setting.

2.Use the UP and DOWN keys to set the backlight to a desired level.

3.Press EXIT to return to the Screen menu or ENTER to get back to the main display.

Adjusting Contrast:

You can adjust the Contrast in the same manner as the Backlight.

1.Select CONTRAST from the Screen menu and press ENTER to launch the Contrast Adjust window.

2.Use the UP and DOWN keys to move the slider bar to a desired level.

3.Press EXIT to return to the Screen menu or press ENTER to get back to the main display.

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