Hardware

ARM CPU has no memory protection

This arm cpu has no MMU, so there is no memory protection at all. That means if you make a error, or run out of memory, the cpu will crash and you have to reboot the 558.

• Discussion

DP558 PSU diagram

• http://www.mpcclub.com/PSU_KiSS_558_Circuit_Diagram.pdf

Pictures of the PSU on different players

• http://www.mpcclub.com/wiki/index.php/Psu
• http://www.flickr.com/photos/stage_2/

Fix some PSU problems

See here how some have solved their problems: http://www.mpcclub.com/modules.php?name=Forums&file=viewtopic&t=9183

Step by step guide to KISS DP-558 Power Supply Modification/Fix

Click here for a step by step guide