I bought a DCC600 with some problems as a winter project. The device gives 2 messages. 1 Sometimes “cassette blocked” and sometimes 2 “no cassette”. I think based on the display messages that it is a sensor error. Before disassembling the device for cleaning, I would like to know your thoughts on the problem and the possible solution (s). The tray opens and sometimes eject the tape with a cassette blocked display message and sometimes it closes then stops with the no cassette displaymessage.
Here is a video about the dcc 600. https://1drv.ms/v/s!Ait1qTScTRHmoINRfwMxbDZ6sMwRWw?e=mGREq5
I tried cleaning the switches as seen on the picture that Ralf suggested in another post. That did not help. I have put the player in Service mode and when i tested the open and close operation it displays “Tray open OK” and “Tray Close OK”