Schematics for Dell Latitude 9420 LA-K161P

[Mickael Dorius]

Hello,

I'm looking for schematics or boardview for Dell Latitude 9420 (model number LA-K161P).
Thanks

Mik

[aurelmdx]

Hi.
Please help unlock bios password Dell 16 Pro
Model: PC16250
ST: 48QLTB4...

[TJM2005]

Hello,
I am trying to repair a power supply for a Vizio M492i-B2.
Before I started:
Fusible Resistor R915 was open.
ZD909 was shorted.
D950B was shorted.

I have replaced the above parts along with a new IC901 / LD7913J
I now have:
165V on the main cap
IC901 Drain pins: 165V
IC901 VCC: 1.1V
IC901 COMP: 1.1V
IC901 BNO: 0.3V

I pulled the Q800 Mosfet and it checked good.
I also tested the two smaller caps C907 and C904B, they both tested close to the rated value.

Does anyone know of anything...

[ebrahemcs]

Hello Everyone,

I need your help plz

After bios update, laptop not booting up, power light working but only i get black screen

Model Name : HP Victus 15-fb0039ne
S/N : 5CD30740K7
ProdID : 7Y7G6EA#ABV

My Bios bin in attachments

Thanks in advance...

[bembeno]

HP 15-e98se No power and The charging indicator LED is dim and flickering in white when i checked pl9,pl10 i found 2.8 volt when i checked pq35 i found that Drain = 19 v source = 2.8 and the gate = 2.6...

[vijayppatel017]

i have Lenovo Thinkpad X13 gen 6. with supervisor password enable. anyone know how to remove it. as i am starting this thing first time so dont know. but i am good in solder.

[Dises]

The laptop responds to the power button, the keyboard backlight lights up, but there is no initialization. I tried to flash the BIOS from the Gigabyte website, first running it through the BIOS utilities and trimming it to the required volume, but to no avail.
Model Name: Aorus 17
S/N: SN23336J000105
CHK: 9150
MFG: 2023-08
Mainboard: GA-X7L Rev:1.0 BFS
...

[FerociousBC]

Hello all,

Samsung 65" TV that randomly power cycles. It could be a few hours or a few minutes and then I hear a click sound and reboots. I have updated the firmware to the latest. I'm suspecting the power supply might have bad caps (hoping 🙏...). Inspected the PSU board and none of the caps have any bulging, leaking, or unusual noises that I can hear. Any suggestions? Thanks

PSU: L65X1Q_DHS / BN44-00627A
Model: UE65F6400AFXZA
Ver No: MH01...