Onida — recquired memory chip on board of model no. ST92195C3B1/MBN for kythunder800

sir, i recquired a memory chip with model number ST92195C3B1/MBN for Onida KYthunder800. iam getting the picture but iam not hearing the sound because the failure of that chip on board. can u send me a chip r suggest me where can i get that chip. please provide me a service man also sir for that problem. iam the fan of onida brand. most of my home appliances are Onida brand sir. thank you sir