How to integrate the Denon X3800H AVC receiver correctly?

Hello Community, I'm currently getting a new sound system: Teufel THEATER 500 Surround 5.1 set Link: https://teufel.de/theater-500-surround-51-set-107001111 For this I need an AVC receiver, in this case the: Denon X3800H Link: https://teufel.de/denon-avc-x3800h-107000517 Connection diagram: https://manuals.denon.com/AVCX3800H/EU/DE/ I have the following TV: Sony KD-85XH9096 LED TV Link: https://www.mediamarkt.de/de/product/_sony-kd-85xh9096-2638730.html What is the exact procedure to achieve the best…

Why doesn't the receiver work anymore?

Yesterday I bought a receiver (Denon AVR X2300W) privately. Then I connected two Teufel speakers to see if everything worked, without any setup and with multiple speakers. Everything worked perfectly. Later that evening, I wanted to complete the setup and connect the receiver to the TV, but lo and behold, the LED on the power…