Re: Philips 543A - no F.M
Check that the FM local-oscillator is actually oscillating: you can easily use a 'scanner' receiver to do this - listen 10.7MHz away from whatever frequency your radio's tuned to.
[Don't know about this particular set but some FM radios run the local-oscillator 10.7MHz above the reception-frequency, and others 10.7MHz below]
If the LO isn't oscillating then you'll hear very little - perhaps just a bit of shortwave-band breakthrough into the IF stages.
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