Hi, maybe someone had this problem. Standby burned: Tny277pn, and resistor R26 (i can't figure out value). But if I add R26 0R, and tny277 I gel standby voltage. If i try to start psu (green+black) it just spins cooler a little and that just it... Output low voltage's. If I try in mainboard it burns standby again.
Thank you for any help.

Sounds like there is still a shorted rail on the PSU. These are also known for bad capacitors. I don't think it is worth repair.