Disassembly of DP-9900Plus/DP-9900 
3-15 
3.11. Disassembly of Output Board, Main Board and 
Power Supply Board 
1.  Perform the procedures described from section 3.5.1 to section 3.5.7. Disconnect 
cables from the output board and remove the screws on the board. Hold the 
handle on the board and remove it gently. 
 
2.  Remove the two screws from the power supply board and pull the power supply 
board by its handle to disassemble it.   
3.  Hold the two handles on the main board and rotate them outwards to disassemble 
the main board.