Yo Fbi, The components that usually require a thorough cleaning are the ones with moving parts...potentiometers, variable capacitors, relays, and switches. To do a complete and thorough job will require complete disassembly of all circuit boards from the chassis. Then the parts can be cleaned spray contact cleaner and lubricated. The circuit board(s) should be cleaned with alcohol and allowed to dry. The cleaned parts should then be checked for spec with a VOM or a capacitance meter. Then before you reassemble the unit, clean the inside of case, the tuning dial/front panel displays with alcohol or windex. With luck you should be able to reassemble the unit and get it working but it might require a realignment of the FM tuner section. Good luck.
