Q. On the SQ-N100 the volume control had a LED inside the volume control that always showed you where the volume was set. With the SQ-N10 when the unit is powering up, the LED blinks and then shuts off when the unit is powered up. The LED also blinks when you hit mute. Is the LED supposed to be on / illuminated in normal operation? A. It is MUTE operation at the first 30 seconds when the unit is powering up, during MUTE operation, LED blinks. After 30 seconds, LED shuts off and the unit works normal. So in MUTE operation the LED blinks, while in normal operation LED shuts off.