Sorry still looking for the service manual in the meantime, check these out http://onemansblog.com/2007/01/08/creative-zen-vision-w-teardown/ and http://onemansblog.com/2007/07/20/tutorial-how-to-upgrade-the-creative-zen-vision-w-hard-drive/ should help you out until someone can find a manual http://www.electronicsinfoline.com/Top_Picks/Handheld_and_Portables/how_to_upgrade_the_creative_zen_vision_w_hard_drive.shtml ...good luck.