[?]: principal schemes

[Igor_ru]

Hello ewrybody.
I am an service engeneer of VSD/VFD and Soft start.
I find principal schemes components (no block schemes) for VSD and Soft start
Exampel: Power board, control board, rfi-filtr, snubber filtr (rfs-filtr).
I do not want to do by hand soldering radio parts. I will be find a fault on the some board only.
It needs to properly assess the problem and replace the necessary fee.
I found something on the Chinese website.)))) But there is only chine.))
Here link if someone interesting.
http://liheming.jimdo.com/ there is all!!!!
Pleace help me.
Thanks for understanding.

You can write me on russia.