Unit settings – Garmin GNC 300XL TSO User Manual

Page 116

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106

SECTION

7

UNIT SETTINGS

Display Settings

To change the display contrast settings:

1. Press and hold

M

and rotate

O

to show the ‘Display’ settings page.

2. Press

C

twice and use

K

to select ‘auto’ or ‘manual’ control.

3. Press

E

.

4. If ‘manual’ is selected, use

K

to set the display contrast level. (If ‘auto’ is selected you may

also change the offset level to your preference.)

5. Press

C

to complete.

The ‘mode’ selection allows you to display on-screen characters as black on a light

green background (positive) or light green on a black background (negative). With the
‘auto’ setting the photocell selects the best mode for day or night viewing.

To change the display mode settings:

1. Press and hold

M

, and rotate

O

to show the ‘Display’ settings page.

2. Press

C

twice and use

O

to highlight the ‘mode’ field.

3. Rotate

K

to select ‘pstv’, ‘ngtv’ or ‘auto’.

4. If ‘auto’ is selected, rotate

O

to highlight the threshold level, and use

K

to select the level

at which the display will switch from positive to negative for night time use. (Note: Some
experimentation may be necessary to obtain the desired response level.)

Setting the display mode to ‘negative’ will display
on-screen characters as light green on a black
background. This setting is suitable for night
operation.

The display contrast may be set to automatically
adjust to varying lighting conditions, using the
built-in photocell.

300xl manual 1/25/99 2:36 PM Page 106

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