TDA2822M test circuit

Audio amplifier used in Sega Gamegear. The 470µF caps were changed to 47µF on the gamegear's sound-ampifier PCB and they went bad (C=0,R>>1). Therefore no current and thus no sound anymore. The other electrolytic caps may be bad as well, but they don't seem that critical. The small caps are SMD parts and still work (most likely ceramic or whatever).