You can download the official Akai MPC500 manual from the following page on the Akai web site:
The Akai manual tells you what each knob and button does, and goes through the various software functions. What it doesn't do is explain how to use an MPC500 in 'real world' situations. There are no practical beat making examples, no tutorials, no tricks, no production advice.
If you need more structured help with your MPC500, take a look at
'Beat Making on the MPC500' - 225 pages with 44 step-by-step tutorials, hundreds of clear screenshots, 500 tutorial files to help you recreate all tutorials in real time, and 300 additional loops and samples giving you the complete guide to making fat beats with your MPC!
If you've found a bug in your MPC500, why not add it to our public
MPC bug list - all new bugs are verified and then reported by us to Akai.