Voltronic Axpert VM IV - Check the Bus Side Components on Main Board

13
The U9 is (IC PWM CNTL TI/UC3525AN DIP-16)
Parts
Attribute
Reference values
Failure status
U9
Resistor
PIN13 TO PIN12: 8.8k
PIN11 TO PIN12: 432k
PIN14 TO PIN12: 432k
Short or explosion
Note: If you are not sure about these components, we recommend you replacing them all.
3.2 Check the bus side components on MAIN board
Power devices
DC/DC IGBT: Q27/Q28/Q29/Q30