There is a 10 -15 minute delay before sound comes on. It's a Polaroid TTM2401 tv 5 yrs old

Change all the capacitors in and around around the sound output section. Usually Philips capacitors shows a some sort of leak after some years. I says this according my service experience. I'm working with this kind of electonic entertainement equipements since 1974. We cannot predict the exact capacitor poise the problem. That is why recomeds to change all of them. It won't cost so much.