Ищу service manual сварочного инвертора IMS-1900

[svarschik]

Thanks svarschik, but I have seen that old already. Do you know something else?

this should be enough to fix all problems with your inverter (that archive has schematic and PCB layouts for 2nd and 3rd editions of GYSMI-190/IMS-1900).

if you're searching the complete step-by-step guide on how to test the inverter for the common problems and fix them, we have no such document, sorry.

[pusu]

...if you're searching the complete step-by-step guide on how to test the inverter for the common problems and fix them, we have no such document, sorry.

Yes @svarschik, this is what I am looking for, because is my inverter.
The problems we have had from my inverter, I have solved.
Thank you for your kindness!