Yes, it is SMPS chip: 2QR2280Z on that module, I'l be happy if You have shematics diagram for it...Can you take pictures of the pcb, it sounds like a switchmode psu chip?
Thks, I see this schematics, but there are several differences, this isn't usefull...This is taken from the datasheet of the chip manufacturer, it could be the same as yours,but not guaranteed.
View attachment 266349
Yess, that is my broken modul!You won't be able to get the circuit diagram for that psu or circuit board, the only way is to either replace the whole board or try to repair it by reverse engineer it.
Is this the pcb?
View attachment 266361
Thks at all! I repair it successfully!Yess, that is my broken modul!
by Aaron Carman
by Duane Benson
by Duane Benson