Philips HTS3377 problems ON via HTS and Remote Control

Hello folks... I have a Philips DVD 5.1 player, which can be switched on after pressing the device or FB several times. It basically tries to start. If it is on, then it takes longer than usual until the sound is there. Switching off via satellite receiver or TV works without any problems .I think that an ELKO etc. is defective. I've had this since 2008 and would very much like to dispose of it. Does anyone know what the problem is and which component I should replace? Spare part INFORMATION and short instructions would be perfect. Thank you in advance. Best regards, Tom