Garmin 010-00230-00 Руководство по установке - Страница 35

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RSP TIME (Response Time)

Sets the speed with which the brightness responds to ambient light changes (only for AUTO key lighting mode). The

higher the number, the slower the key lighting responds. This field has a range of 3 to 7, and is set to 4 at the factory.

MIN (Minimum)

Sets the minimum brightness of the key lighting. The higher the number, the brighter the minimum brightness. Key

lighting minimum brightness has a range of 0 (zero) to 99, and is set to 8 at the factory. It is prudent to verify that

key lighting characteristics match those of other equipment in the aircraft panel under night lighting conditions.

KEY SRCE (Key Lighting Source)

Selection

PHOTO (Photocell)

14V

28V

SLOPE

Sets the sensitivity of the key lighting brightness to changes in the input level. The higher the number, the brighter

the key lighting will be for a given increase in the input level. This field has a range of 0 (zero) to 99, and is set to 50

at the factory.

OFFSET

Adjusts the key lighting level up or down for any given input level. This field has a range of 0 (zero) to 99, and is set

to 50 at the factory. This may also be used to match lighting curves with other equipment in the panel.

5.2.7 CONTRAST MODE Page

CONTRAST MODE

Selection

MAN (Manual)

AUTO (Automatic)

CONTRAST LEVEL ADJUSTMENT

This is a "slider" bar graph control. Use the 8 key to move the graph to the left, decreasing the numbers and contrast

level. Use the 9 key to move it to the right, increasing the numbers and contrast level. It is set to 50% at the factory.

In manual contrast mode, this is a direct adjustment of the display contrast. In automatic contrast mode, this adjusts

the offset to the automatically compensated contrast.

Page 5-8

Rev. 1

Description

DEFAULT. Key lighting level is determined by the ambient light

level as measured by the photocell on the GTX 330.

Backlight level tracks a 14 volt DC aircraft lighting bus.

Backlight level tracks a 28 volt DC aircraft lighting bus.

Backlight level tracks a 5 volt DC aircraft lighting bus.

Description

The display contrast is manually adjusted either here or by the pilot

using the GTX 330 CONTRAST page.

DEFAULT. The display contrast is automatically compensated for

temperature and other factors. An offset can be entered in the contrast

level adjustment described below.

CONTRAST Page

GTX 330 Installation Manual

190-00207-02