|The manual download file name that I have for that is VA-503+A4SH.ZIP. You can download it here:|
It's the last zip download on that page. The zip file extracts to 6 pdf files comprising the manual cover page, the index, and 4 chapters. On that same download page there's a folder named VA-503+A4SH/ where the files are already extracted if you wanted to view them without downloading the manual.
I'm not sure what the other VA-503+ downloads on that page are for.