Press the button (or the device mode you are setting up).
Normal. The manual states that a 50/60 Hz hum from the toroidal transformer and relay clicking is expected during voltage regulation. However, a "loud grinding" buzz indicates a dirty AC input. Unplug the unit and plug it back in after 10 seconds. digivolt un-47 manual 900w pdf
: This is a multi-device universal remote control (sometimes listed as an 8-in-1 or 15-in-1 remote) used to program and control televisions, DVDs, and other audiovisual systems. It is not a high-wattage appliance. Press the button (or the device mode you are setting up)
Which of those would you like next?
Locate the brand name printed above the number buttons on the remote. Press and hold the button. However, a "loud grinding" buzz indicates a dirty AC input
The “UN-47” typically refers to an or a stabilized power supply . The “900W” suggests it’s designed for loads up to 900 watts—ideal for protecting a desktop computer, a home theater setup, a 3D printer, or sensitive lab equipment from brownouts and over-voltage spikes.