NWZ-E460 Service Manual
Here is the link to the service manual for the E-Series, E460. Thanks to Dave M for providing it.
I have linked it from Google Docs, hopefully users will be able to download it since I made it public. I am not sure but I would imagine that this service menu entry would also work for other models, like the S760 or E360, but I have no confirmation of this. If anyone is daring to try it on their players and it works please post below. But I caution, I am not responsible if you mess up your player.
If there are any issues with the Google Docs/Drive link please post below.