Garmin 720C Manuale Utente

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Adjust the focus using the focus ring.

■

There may be dirt or smears on the lens. Clean the lens as 
described on page 52.

■

Make sure the lens is not fogged by condensation. You may need 
to wait before using the projector after moving it from a cold 
environment.

■

Adjust the 

Sharpness 

setting on the Video menu (see page 40). 

When you change video settings, you should be able to see the 
effect on the screen immediately. If you’re projecting from a 
computer, you may also need to adjust the Tracking and Sync as 
described in the next section. If you don’t like the new settings, 
you can always select 

Reset 

to return to the factory default 

settings.

■

If you’re projecting from a computer and displaying an image that 
contains a lot of fine detail, you may notice one or more vertical 
stripes or bands, or some of the characters may look heavy or 
blurred. Press the 

Auto

 button on the remote control. This resets 

the projector’s tracking and sync settings.

■

If further adjustment is needed, you can fine-tune the 

Tracking

 

and 

Sync

 settings manually using the Video menu as described 

on page 40. 

1. Fill the screen with an image containing fine detail when 

making these adjustments. For example, in Windows you can 
select a pattern to appear as your desktop background. If this 
option isn’t available, try projecting black text on a white 
background.

2. Adjust the 

Tracking

 to eliminate vertical stripes. 

3. Adjust the 

Sync

 to increase the sharpness of the image.

720-730.book  Page 67  Thursday, October 30, 2003  11:32 AM