The original document had wire colours that did not match devices in the wild, nor match the repair docs on gamesx.com:

https://nfggames.com/nfg/x68repair/

The current version (02 August 2020) has corrected colours and English translations.  

Please share any additional corrections or additions on the gamesx.com forums:

https://nfggames.com/forum2/index.php?board=14.0

Thanks, and keep on X68ing!

NFG.