| Electronics > Repair |
| Need help to identify burned smd component |
| << < (5/6) > >> |
| pcprogrammer:
Looks like a capacitor. Can you figure out how it is connected in the circuit? |
| Alex_ulli:
--- Quote from: pcprogrammer on November 05, 2024, 07:37:32 pm ---Looks like a capacitor. Can you figure out how it is connected in the circuit? --- End quote --- I am afraid it is impossible to find out how it is connected. So only to hope that everything is ok, except those mosfets. Anyway I ordered 4 of them, just in case :) |
| u666sa:
Those mosfets are shorted to ground, that's why that cap is getting hot. Remove mosfets, check cap for short. |
| fzabkar:
--- Quote from: u666sa on November 05, 2024, 11:12:08 pm ---Those mosfets are shorted to ground, that's why that cap is getting hot. Remove mosfets, check cap for short. --- End quote --- If a capacitor is heating up, it's because it has become ohmic. I would measure its resistance in and out of circuit. |
| picburner:
In addition to the capacitor problem, replacing the STL56N3LLH5 burned mosfets will be a complicated undertaking if you don't have the right equipment (hot plate, hot air/IR desolder) as they have a large pad underneath them soldered to the PCB. All the close-packed components further complicate the task, you will need to isolate the part you are replacing with Kapton tape to prevent other nearby components from flying off. Anyway, at least, the device is turned on now! |
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