u/Fabulous_Data_5331

I have an Onkyo home theatre sound system; Model: HT-R320. This has been showing trouble since the last 2 months.

Issue- When system is on, the sound comes for 5 mins and then there’s no sound at all.

I am looking for the following spare parts.

CS493264 ic  and

D784225GC249 ic 

I understand that its a very old model and there won't be spare parts available from the company. But I still hate to throw it away as it was a gift from my dad. Is there any way I can still salvage it?