Problem with mic button when switched on

[eddie56]

high pitched whistle noise when mic 1 is on even if no mic lead is plugged into controller when you turn mic 1 button to off noise disappears has anyone come across this problem please

[NoiseRiser]

@Reese - is this a doubled topic?

Hi pitched whistle sound from mic 1

has anyone come across this. when mic1 is in on position theres a high pitched whistling sound through sound system if mic lead is conected or not and when you turn mic button off noise goes away i think its a fault with controller can anyone help

[Reese]

It probably is. Closing this one.