Pwm driver misterious chip..MCU or standard?

[Emi]

Hi
I'd like to discover if a scratched pwm driver can be "unveiled" .
Board is a classical chinese LY-820 pwm driver  but (god damn them)  has the chip grinded !!!
Could be a tl594 similar..
It drives a mosfet and has only few caps and resistors around..

Can you help me?

[Circlotron]

 Would be handy to show the other side of the board as well so we can see where the tracks connect to.

[Emi]

 Ok..i will post a pic later
Grabbed on web..but Nice
Could it really be a tl "something"?
494?

[fzabkar]

The Vcc and Ground pins match a TL494. I would draw a circuit diagram.

[Emi]

Thanks fzabkar. ..meanwhile i've casually found the solution in a Russian lathes forum. . ( chipmakers.ru)
It ' really a tl494 very common chip
The guy here developed some mods to improve original
Performances..
Thanks for your interest