Denon AVR1906 AV Surround Sound amp (Langwathby CA10)

I upgraded several years ago and now I can’t remember why! Was there something wrong? Or (more likely) was I seduced by Amp-envy? Anyway it powers on and has the instruction manual and remote handset. No HDMI ports but three optical ones (2 in and 1 out).
I have just advertised a bag of cables- I think a lot of them probably belong with this.