Is your Marantz Model 500 missing that little door?

Well,  maybe this will help you out. Here are the dimension so you can have one made. 

 

All measurements are taken in Millimeters

a) 13.2  b) 6.0  c) 15.5  d) 2.0  e) 2.1  f) 3.1  g) 3.0 

 h) 1.4  i) 0.5  J) 0.5  k) 0.5  l) 0.3  m) 1.2  n) 1.9