Garmin GPSCOM 170 Manual do Utilizador descarregar pdf (Página 63)

Time Format

The time display shown on the system setup and

position pages may be set to display the time in a 12- or

24-hour format.

To select the time format:

1. Highlight the ‘HOURS’ field and press

. Select

12- or 24-hour display, and press

to confirm.

Screen Contrast

The GPSCOM 170 features adjustable screen contrast

and is controlled by using an on-screen bar scale. The

screen contrast can also be adjusted from the satellite sta-

tus page (see page 20).

To set the screen contrast:

1. Move the field highlight to the ‘CONTRAST’ field and

press

. Use left and right arrow keys to adjust

the bar scale for the desired contrast and press

Screen Backlighting

The screen backlight timer is adjustable for 0, 15, 30,

60, 120 and 240 seconds. The ‘0’ setting will keep back-

lighting on continuously. Whenever backlighting is on, a

bulb icon will appear on the status page.

To set the backlight timer:

1. Highlight the ‘LIGHT’ field and press

2. Use the up and down arrow keys to toggle through and

select the desired setting, and press

3. To turn lighting on and off, press the backlight button.

Tone Setting

You may choose from three settings for audible tone:

messages only, messages and keystrokes, or no tone at all.

Tone volume is controlled by the volume knob.

To specify a tone setting:

1. Highlight the ‘TONE’ field and press

. Use the up

and down arrow keys to select the desired tone and

press

System Setup

Reference

12/24 Hour Clock

To display the time in

AM/PM format, select the

12 hour option from the

‘hours’ field.

Screen Backlighting

To get the longest battery

life, keep the screen back-

lighting at the default

15 -second option.

170 manual pages rev D 9/21/98 9:23 AM Page 58

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