Lincoln Electric Invertec V140-S, need PWM circuit and resistor R48 value

Hi dear technicians. Does anyone have a wiring/circuit diagram of PWM module at Invertec V140-S? Sеveral weeks ago i receive this inverter with completely burnt out power module - six IGBT's (HGTP12N60) and two diodes (STTH12R06) has destroyed. Now I has finish with recover them and the gate pulses are correct, but ... When try to ignite arc the welding current is extremely high (around 150...155 A!) and no output current control from potentiometer. The potentiometer, output current sensor (shunt) and 8-wire cable between front control board and inverter board are correct. Something in PWM module make me crazy. In first place the device has previous attempts to repair from someone else and I'm not 100% sure in IC component type and placing: U1=LM324N, U2=LM393N, U3=TDA1060, U4=LM324N and U5=LM358N. That's correct? And second - the original resistor (R48) in red circle position is completely crumbles to pieces from rust and colour code are missing. I try to measure his remains and got as result around 220k. Also replaced, but again no 100% sure in this value! The IC's nr. 1, 2, 4 and 5 has also replaced (easy, adaptor socket), but no difference in problem status. The diodes and transistors in module is measured too and not damaged. I suspect R48 is with incorrect value, but no circuit diagram of PWM module. Does anyone have any high resolution photo of this PWM module or schematic diagram with component values?
​[ http://i64.tinypic.com/2hn5f14.jpg - Pentru incarcare in pagina (embed) Click aici ]

This is the device:
[ http://www.nzwrs.com/files/images/DSC00455.preview.JPG - Pentru incarcare in pagina (embed) Click aici ]


PS: I have service manual, but there is no PWM/control circuit diagram with component values.
Thank's in advance!

Edited by welder, 20 September 2016 - 23:29.

Sorry, ni pajalata pa ruski. Rumanski zadac, pls
Am gresit. Nem todom romana..

I think you can have more succes in this topic :
http://forum.softped.../page__st__3546
Whith the text in Romanian - "Am nevoie de schema electronica a inverterului Lincoln V - 140 S !"

 welder, on 20 septembrie 2016 - 23:14, said:

You have acted correctly.
True value is 220K.

[ http://emil.matei.ro/forum/valvol/dsc00726a.jpg - Pentru incarcare in pagina (embed) Click aici ]

The U1 has been previously replaced from other technicians with LM324. This is wrong or fraud, I don't know exactly, but after some pinout and circuit researches - the right integrated circuit at this place is LM339! This proved later from em2006 technical documents too. The device is fixed more than year ago and working flawlessly.

Thank's to all participants!
Topic closed.

Edited by welder, 21 September 2017 - 20:33.

http://www.emil.mate...vertec_v140.php