- Do not touch the areas outlined in red in the following diagrams when replacing the PSU. Residual charge on the board may cause electric shock.
 - For 100V:
 - For 200V:
 
- Remove the controller box. (Controller Box)
 - Remove the PSU fan. (PSU Fan)
 - Disconnect the harness and remove the harness guide [A]. (
×3,
×2, Hook ×1)
 - The next step varies according to the parts that you want to remove. 
- For removing the PSUs with the bracket, disconnect the connectors on the PSU (AC) [A] and PSU (DC) [B].
 - For removing the PSU (DC) alone, remove the PSU (DC) [A]. (
×4,
×5, Locking wire saddle ×1)
 - For removing the PSU (AC) alone, remove the PSU (AC) [A].
 
 - For removing the PSUs with the bracket, disconnect the connectors on the PSU (AC) [A] and PSU (DC) [B].