[NostalgiaRadioTime]

I wouldn't rule out the bandswitch not making good contact. But I would also check the Antenna coil (#1 on the schematic below). You should get around 1.5 ohms total across the primary and around 6 ohms across the secondary. If there's an open winding, it definitely can cause the lack of reception and lack of response to the ANT terminal. Not an uncommon thing. A lightning strike to an outdoor antenna the radio was hooked up to many moons ago has been known to do in Antenna coils.

https://philcoradio.com/library/download...l.%202.pdf