MONITOR BOARD REPAIR - CHIP IDENTIFICATION

[Hanma]

Hello everybody,

I'm trying to fix an "old" 27' QHD Monitor. The brand is QNIX, a chinese brand so I can't find any schematic.
A couple days ago it shut down and didn't power on anymore, not even standby light.

I opened it and checked the main power rail (will attach the picture) ; 12v gets in two voltage regulators, both outputting 5v measured also from the coils, so the bottom side should be okay.

The problem is on the top side. When I was checking voltages, smoke started coming out from one of two small voltage regulators (attached a macro shot below) near the bios and crystal oscillator. I guess they are the 1.2v and 3.3v power supplies for BIOS and processor.





Could you guys help me identify this chip? I'm not a pro but maybe I can fix it with your help.

Thank you 😁

[Hanma]

Couldn't find any short around the board, except for the chip that started to smoke obviously. Any idea?🤔

[lotas]

CYxx - ETA3409S2F-T

[lotas]

BL8076CB5TR is also suitable.

[Davi.p]

XC9235G36DM ?

[Hanma]

BL8076CB5TR is also suitable.

The pinout looks right. Ordered a couple of these, will update the post once I solder them back on the board.

Thanks 🫱🏻🫲🏼

[Hanma]

XC9235G36DM ?

Can't find much with this code. Sometimes the markings on the chips have nothing to do with them 🤔.