Raymarine 300 manual Changing the Lighting and Contrast, 42% 60%

Chapter 2: Getting Started 2-3

zero the display and key backlights extinguish. If the POWER key is released within this period, power-down is cancelled.

Changing the Lighting and Contrast

You can change the level of backlighting and contrast for the screen and keys. The key backlighting always retains a minimal level to enable the keys to be seen at night.

➤To change the lighting and contrast:

1. Press the POWER key to display the lighting controls (Figure 2-3).

ON

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LIGHT CONTRAST

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Figure 2-3: Lighting Controls

2.Use the LIGHT soft key or trackpad left/right to select LIGHT control.

•Use the LIGHT soft key to toggle lighting ON/OFF.

•Use trackpad up/down to select lighting level (eight levels).

3.Press the CONTRAST soft key, or trackpad left/right, to select the CON- TRAST control. Adjust the contrast setting in the same way as for the lighting (100 contrast levels).

4.Press ENTER to remove the soft key sliders and return to the default screen, with the new lighting and contrast levels retained.

When the display unit is switched on, screen lighting is restored to ON if it was ON previously. Whilst the unit is switched on, the chosen lighting level is retained until it is reset. The new contrast level is retained until it is reset, even after power-off, unless it has been set either very low or very high; in this case, the contrast will be restored on power-up as follows:

•Contrast set <30% restored to 30%

•Contrast set >70% restored to 70%

Note: Factory default settings are LIGHT OFF and CONTRAST 50%.