Power grid overloaded-5.0 System too much?

I recently moved and have now tried to connect and connect my entire system. It is a 5.0 passive system with two front towers including woofers. The amplifier is a Pioneer Vsx924. I use copper cables for wiring and tosslink or HDMI as a connection. I live in a prefabricated building.

I noticed that after 5-10 minutes my TV first switched to the TV speakers and then back again. A few minutes later switch it on again, then the picture disappears, "no signal" can be read. Sound can still be heard. At first I thought the header wasn't capable enough. Although I had the wiring in the old apartment as well. Then I plugged the amplifier into a different socket. My apartment includes an eat-in kitchen, I could imagine that the circuit in the living room is simply overloaded.

It was also noticeable that there are signal changes when I add or remove new devices (iron for example).

Do you have any suggestion what can be done? It's not the TV, neither is the amplifier, nor can the input signal (notebook or Nintendo switch) be. Would thin copper cables be a problem? What can I do?

The amplifier never draws more than 1-1.5kW. A Schuko line is designed for 3.6kW (or 2.3kW with old 10A fuses). And if more flow over it then the fuse flies out. My apartment has ancient cabling, two fuses for four rooms. And there are no problems with that. In the living room I run a PC with a 650 watt power supply, two active speakers and a Denon X4100 with 5.1 and active subwoofer at the same time without any problems. How many devices are there with you on the circuit to which the AVR is connected? What kind of backups are these?

However, if faults are actually passed on via the power line, you should really have an electrician check this. Maybe there's more to it than that and that can be dangerous or even life-threatening.

Aunt Edit says: One

https://www.denon.com/de-de/shop/avreceiver/avrx4500h

is specified for a maximum power consumption of 710 watts.

Pull an extension cable from another room to the system where no device is plugged in. Check beforehand whether it is hanging on another fuse that is important. If so, the system should work

As long as the fuses stay in and the walls do not turn into heating, even if you could wish that in autumn, your problem lies elsewhere.

There are "dirty" power grids, the iron is not responsible for any motorized devices, … Possibly also from neighbors.

Hmm, I have to agree with you. Fuses were not blown, I had also paid attention to that.

So you recommend moving the connection of the system to an adjoining room? Thanks for the help, I'll try it out later at home

Yes, I would at least see that the error is fixed. Bad contacts can lead to increased heat generation. It could also be a kind of loose contact, which causes sparks and thus an increased risk of fire.

Or you no longer use the circuit, then the sockets can be operated via another circuit. If e.g. There are sockets in the room behind and they happen to be at almost the same height, you can easily drill through the socket into the other room and the sockets are then operated in parallel with the sockets in the neighboring circle.

Then the existing circle is simply laid dead and so much does not have to be broken. The hole can no longer be seen afterwards, because the hole would be behind the socket. But, as I said, a specialist can best assess and carry out this on site in order to keep the effort as low as possible.

So I would recommend you to really have the whole thing checked by a professional. He can still best assess the situation on site.

Yes, it is your television that is acting strangely. There may be a power, heat, or HDMI communication problem in this one.

What are "signal changes" for you?