Navnet VX2 RDP-139 Display

[Hammerhead]

I recently acquired one of these and would like to take it apart to clean it and replace the slightly corroded aluminium case.
Does anyone know of a disassembly procedure or manual that is available?
I particularly don't want to break the bezel as it is a tight fit and clean ones are difficult to come by as a replacement part.

 

[Johnny Electron]

If you look at the installation manual for a typical radar that uses this RDP139 display (like the model 1933C) you will find instructions in the appendix on how to install optional items like the ARPA board. The instructions for doing so, shows how to take open the case.