After turning on the Onkyo HT-R390, it will take several minutes for the sound to appear.

Hello! I have an Onkyo HT-R390 amplifier I bought around 2010 with my own speakers. There is no sound right after you turn it on lately. First a few seconds, now it takes 6 minutes for it to sound. If you already have a sound, there is a sound right after you turn it off – wait a few seconds, even 1 minute – and turn it back on. So after a longer stand, there is no sound. Like if you needed more time to “warm up.” Is this a known bug? From this, it is possible to limit what the problem is? I’m also looking for a mechanic in Nyíregyháza who can remedy this, but it would be good not to go completely stupid, I can say a specific direction if possible.

–