The last time I looked inside a modern radio, I could identify the audio chip (LM386 I think) and a few components. All the rest has shrunk, never to be seen by old eyes again. Been out of the radio servicing game for thirty years after taking up digital electronics and programming. My retirement plan is chemical engineering, I intend converting port, wine and beer into urine, probably on a daily basis. Perhaps the suspect radio should be placed on a vibration table while testing its performance. My Microair has been faultless since 2009.