Hi to everybody, recently I have bought a wonderful brown HS-F07 on the flea market. The seller told me walkman is working. At home I unfortunately had to realize it is not playing a cassette. When I am pressing the play button it is permanently switching like the auto reverse function. Spinning forward and backwards is ok but not playing. I have tried to repair the item. I thought it is the belt and replaced it (very easy to do it). After replacing it the same problem was still existing. Now my baby is waiting for an urgent help. Does anybody know what the reason is and especially how to fix it? I would be very happy if anybody can help me and my baby. Thanks a lot