三，中心盒的分解
Disassembly of main box
20.
中心板的拆卸
Disassembly of main PCB
A
移开靠背（参考上面靠背的拆卸）
Remove the backrest first
（
refer to disassembly of the backrest
）
B
用十字螺丝刀取下固定中心盒上盖的
8
个十字盘头螺钉
,
就可以打开中心盒
Slacken and remove fixing the screws in the PCB box. Then you can open the box cover
C
取下中心板上所有的的接线端，找出
6
个支撑处
Pull out all the terminals on the main PCB, find out the 6 PCB supports
D
用尖嘴钳夹开支撑处，取下
PCB
板
With the help of a pliers, take off the main PCB.
21.
变压器的拆卸
Disassembly of transformer
A
取下中心盒上盖（参考中心板的拆卸）
Take the PCB cover
（
refer to disassembly of main PCB
）
B
取下变压器上的六角螺丝
Take off the bolt that fix the transformer.
中心盒上有
8
枚螺丝
Slacken and remove the
screws on the box (6pcs),
Then take away the up cover
6
个支撑处
the 4 supports
The connecters of the transformer
has been taken off
