I have a Sony receiver that's about 20 years old. At the time it was quite advanced, it has Dolby Digital support, and that's been great for years. Recently, it has started making a loud "pop" when I start it in one of the modes...unfortunately, this is the connection that supports the PS4 and streams movies. Starting it up in another mode is fine, it's just either starting on one mode or switching to it that's an issue. I can mute it for a moment and avoid the problem...but the light that indicates that mute is on has stopped working.
Is there any point in attempting to fix this? Or should I just give in and get a new one?