Sound from LCD Board

[angel4ever]

I have an Angel 4 Fly. Sometimes when I turn the marker on, a high pitch sound comes from the LCD board. It is a very faint sound and you wouldn't notice it unless you put your ear next to it. It goes away when I pull the trigger once. It seems to come only only when the background blue light comes on. Otherwise, the marker shoots great. Any input anyone?

[mixar]

thats just how it is

[alleng]

normal

[r6will]

its the backlight, notice it only makes noise when the light is on

[aerotcus]

My Timex Ironman watch makes the same noise when the indiglo is on haha.

[Won Hunglo]

Normal. The board is just zinging up.

[angel4ever]

Okey guys, I guess it is normal. I just thought it was odd that it would do that. Thanx for the replies.

[r6will]

what the hell is zinging up??? :notsure: its the backlight