I am looking for a 8053 that doesnt work properly to get the main board out of and swap boards or some caps from. I replaced a cap on mine and got it working but its was out of a 8051 and not the same exact cap and it does make some static noise when changing volume and its not the volume pod. Would be interested in others too 5442 , 8051 , 8052. Let me know I you have anything.