kevin.lancashire4 years ago000Must be restarted every 30 seconds via Input Select or Power Button. Since only a buzzing sound can be heard.Show in original language (German)august.kaelin4 years ago • purchased this product000purchased this productPossibly an interfering device (e.g. WLAN modem) in the vicinity. I would change the position slightly, maybe just a turn is enough. Good luck!Show in original language (German)Comment