Hello all. I have just finished working on my recently aquired Sony Wm-10. I have cleaned the belt path very well of the old belt residue.New belt installed, electrical contacts have been cleaned, but the play funtion won't stay on for longer than a few seconds. Rewind/ FFW works well, but the play function disengages not long after it has been activated. Sometimes it will play for maybe 10 seconds at most, but most of the time it shuts off after about 2-3 seconds. Anyone out there have this problem at all. Do you know of a fix. I'm almost there getting this thing going, but the thing just wont stay on in play mode.