Hello, I have a Philips DCC300, sometimes it does not recognize the DCC tape that appears on the screen (not cassette), however the analog tapes do reproduce them but I do not know what is the reason since the important thing is to know what is the fault to be able to repair it if it does not have a solution I do not repair it, the rubber is somewhat damaged but does not slip and the cassette compartment opens and closes correctly, thanks in advance, greetings
Welcome to the forum! I moved your topic to the right category, I hope you don’t mind.
This sounds like the detection switch, see this thread for details: Philips DCC 600 - "No Cassette", but cleaning should fix it in your case.
The rubber buttons on the DCC300 are very often like this, there is not much that can be done.