UC3825A based smps troubleshoot

[aksnis]

Hello

I am trying to repair a smps power supply based on UC3825A

Problem is the resistor R49 & R34 get burst as soon as i start the smps

I am not able to find out the issue

SYS_ECON is a 0-5v given from MCU desired by user to control 0-180v smps output

 

[Bluejets]

Have you checked the value of R35 ..?