Hi there! So... I HAVE A PROBLEM! I've just bought a second hand Tascam Portastudio 424 MKII. It looks like great condition, but when I push play button it makes a sound like it's going to work but... nothing happends the tape doesn't move I've opened the Tascam but I haven't seen anything strange: nor dirty, nor anything that could need a safety stop the tape and the rubber belts are in perfect condition. I add some videos so you can see what I'm telling: As you can see at the end of second video and in the third one, the "thing" which has to do the "play-job" is working and responds when a press the play-button, however, it's like something is stopping the machine to do it. PLEASE HELP! THANKS!