Panasonic Micro. Recorder,RN-404

I purchased a Panasonic Microcassette Tape Recorder in 1995.  I can't get any help from the Panasonic web site as that particular recorder has been discontinued.  Even though it is around 10 years old, it hasn't been used much.  The problem I am having is that the left 'spindle' (the part that sticks through the left hole in the cassette) will not rotate; therefore, will not rewind.  There are no servicers within 100 miles of where I live.  Can anyone help me work on this problem?  I should note that the instructions that came with the recorder state that it is either a RN-402 or RN-502.  However, the back of the recorder states that it is Model #RN-404.  I looked for an answer to this question on the entire site, but have not found it.  Thank you for any help you can give me.