Anyone REALLY good with electronic circuits?

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Amnesie
Guru

Joined: 30/06/2020
Location: Germany
Posts: 763
Posted: 10:37am 27 May 2022      

Hello,

I looked at the schematics and the datasheet; on page 3 it says pin 25 is AF Sound Output, which is comming from the AM demodulator. "AF" probably means Audio Frequency. So it is no dc voltage but a normal ac tone signal.

Datasheet: https://pdf1.alldatasheet.com/datasheet-pdf/view/96786/PHILIPS/FI1216MF.html

Greetings
Daniel
Edited 2022-05-27 20:40 by Amnesie