Hi,

I’m not that savvy about electronics or of radios per say, but I suspect there is a problem with the radio antenna frequency signal (RF) coming in.
The next part is of the super heterodyne section of the radio the signal processing.
The setup matches the RF or turned into an internal (IF) signal that goes out to the amplifiers. The preamplifier feeds the next larger amplifier in the radio or to a remote one.
Several ways to pass the buck but they all have to follow a certain flow procedure.

The CD section puts its signal injected at the preamplifier, by selecting its own output directly into the amplifier section or point.
So to test this theory of mine a signal needs to be put in, or the term is injected and traced to find what most likely is a faulty component or solder joint even. A loose or cracked anything can be the first thing to suspect from the antenna itself onward towards internal issues.

If you can get access to the antenna connector try a know working radio on the antenna and rule that out.
Sometime it is possible to put the defective radio right under a AM radio stations antenna.
The signal could penetrates the circuits, Like the old days of little crystal radio sets that I use when I was five years old.
It had only one ear plug headphone. I don’t remember if it even used a battery? It just needed a metal grid for an antenna. I used an under house air vent and set or leaned up against the side of our house, that had asbestos shingles siding and lead soldered copper pipes.

Learning things and not knowing things were blissfully simple and called the good ole days.

Now it’s all questionable but we are still kicking while suffering a new frustration of our technical world.

You are being taunted with a dilemma of learning to fix or buying a more “complicated” replacement.

In the electronics world, the technical repairman and consumers, started loosing ground as a CARETAKER, when the Quasar TV was produced with replaceable circuit boards, that just slid out and back in.


Phil