I have a problem with power supply and no idea of how to solve it.
The whole system consists of a projector, an AV receiver, a subwoofer and a PS4. Around 800W. Early when I just got the projector it looked for a while that all was fine and dandy, but later some power disturbances started happening.
So exactly what happens is, while playing or watching movies or whatever the whole screen suddenly displays white noise and the sound disappears. this is happening just for a split second, then i see the projector screen looking for a source also for a second or so and then everything starts working again. The PS4 doesn't restart, the game seems to be continuing while this happens. Sometimes there isn't even a white noise seen, just black screen in which projector is looking for source, quickly finds it again and the display is back again.
I have noticed that around 80% of the time this is happening because of other electric triggers, for example switching on the lights in a different room or switching the cooker on and off and similar, so i'm just thinking the rest of the cases are reactions as well, i just don't know to what exactly.
So I bought a surge protective extension cord and plugged everything in it with no luck. To be on the safe side I tried different circuits around the house - the problem still persisted.
Finally with no more ideas of what to try I decided to go for the big guns and got myself an UPS with the capacity of around 1200W as recommended by one quite competent friend. We were convinced this would fix the problem. It didn't.
So my question is, does anyone have any idea of what could actually be happening here? Also, does it matter that I use an extension cord to plug all the devices to the cord and then this whole system connects to the UPS via the cord as opposed to plugging each device into a separate port? The load indicator shows that the UPS isn’t overloaded.