Detailed information please refer to the model set.
Dismantle the main board.Disconnect connectors(XP221,XP82,XS751),remove 2 screws on the board
and 6 screws on back panel.(Figure 3)
Dismantle the power board.Remove 4 screws on the board.(Figure 3)
Dismantle the front panel and the front control board.Loosen the 2 buckles on both sides and 2 buckles
under bottom cover,then remove 5 screws on the front control board(Figure 4)