Garmin EX21 Manuale Utente

2. Select the 

Reset

 menu and press 

Enter

. You see this screen:

3. Select 

Reset Lamp Hours

 and press 

Enter

. 

4. When you see the prompt, select

 Yes and 

press 

Enter

.

5. When you’re finished, press 

Menu

 to exit.

To check the number of hours the lamp has been used, press the 

Menu

 button and highlight the 

Info

 menu. You see a screen like this:

The life span of the lamp is about 3000 hours if the 

Brightness 

Control

 setting in the Settings menu is set to 

High 

(default), and 

4000 hours if the 

Brightness Control

 setting is set to 

Low

. Make 

sure you have a spare lamp handy if the usage hours on this menu are 
close to the life span of your lamp.

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