Hello. I need some help to repair a SUA1500I, wicth i've burned because i was soldering battery terminals with the soldering iron connected on the mains, while ups was pluged and was on. |O
I've found that all the FETs are shorted and i've removed them, gate resistors burned and HIP4082I exploded. Also on the back side of the board one trace was burned. The HIP ic i understand that is the driver for the fets.
How can i test ic361-0015A, because the trace burned is on the other side of the board. What i mean, i want to take all the precautions when i put new transistors and new ic, will not be damaged. Also i've found one 1ohm(1R0) resistor open.
I can't see other components damaged like varistors etc. All the 22uF caps where repalce before the damage because their ESR was way to high
Please give me any idee what to test.
I've found that all the FETs are shorted and i've removed them, gate resistors burned and HIP4082I exploded. Also on the back side of the board one trace was burned. The HIP ic i understand that is the driver for the fets.
How can i test ic361-0015A, because the trace burned is on the other side of the board. What i mean, i want to take all the precautions when i put new transistors and new ic, will not be damaged. Also i've found one 1ohm(1R0) resistor open.
I can't see other components damaged like varistors etc. All the 22uF caps where repalce before the damage because their ESR was way to high
Please give me any idee what to test.
Attached Files
