I bought a Game Doctor SF7 a while ago to be able to back up some prototype stuff. However, a few of them refuse to dump correctly, Pilotwings among others. The emulator says the checksum is bad, but it loads up and plays fine until the start of any simulation part. From there everything gets black and only the music and sounds are playing. I'm fairly sure the DSP is not the final version, which might explain it all. If so, will that automatically render the checksum bad even if it actually is a good dump?

Also, if I were to dump the contents of the DSP, is it possible to somehow do it without having to desolder it from the board?