Testboy TV 455VDE-tester Testboy TV 455 사용자 설명서

 

 

 

 
With the BACKLIGHT key backlight and contrast can be adjusted. 

 

Toggles backlight intensity level. 

Keep pressed for 1 s

Locks high intensity backlight level until power is turned off or the 
key is pressed again. 

Keep pressed for 2 s Bargraph for LCD contrast adjustment is displayed. 
 

 

Keys for contrast adjustment: 

 

Reduces contrast. 

Increases contrast. 

TEST 

Accepts new contrast. 

Exits without changes.