Help! need guide to disassemble NEC Optiarc AD-7530B

hi there… i`m having a problem with my nec optiarc ad-7530B. i disassemble it apart then i forgot the steps n the right place for each screw n plate position, wonder if anyone has the same model please give me some screenshot for unloaded i just need to see the position of the screw n the thin n small plate inside. thanx