My CD 100 B was working perfectly, now it picks a CD and sets it on player, closes, opens and returns it to rack 4 times, the 5th time when the player closes it spins clockwise for about 1 second then returns cd to rack. The CD carrier then makes a full revolution and starts the same thing over again with the same CD. the only time it stops is when in service mode or turned off. New to this, could sure use the help.