y520-15IKBN

mazloum

Badcaps Veteran

Join Date: Sep 2012

Posts: 499

Country: Lebanon
#1

y520-15IKBN

11-23-2020, 02:26 AM

hi guys
i have a power problem with this laptop:
no power at all
the pins 5-6-7-8 on pq201= 20v
pins 1-2-3 on pq201= 0v
pin 4 = 0.021~~0.044v unstable
no short on pq201 nor pq202
Attached Files
Tags: None
lapfix

Badcaps Legend

Join Date: Mar 2020

Posts: 2733

Country: my workshop
#2

11-23-2020, 02:42 AM

Re: y520-15IKBN

Voltage at charger ic pins ! did you find the requirements voltages to work !
Comment
mcplslg123

Badcaps Legend

Join Date: Jun 2015

Posts: 7262

Country: india
#3

11-23-2020, 05:26 AM

Re: y520-15IKBN

These are very basic steps and @mazloum with 337 posts should be knowing this. Check basic requirements of charging IC as@lapfix has suggested such as ACOK,ACDET,ACN/ACP/CMSRC/REGN Etc.
Comment

Previous template Next

Where to find a very small fpc connector 0.3mm between 2 pins ?

by corrize

Hello, I search this connector (oxydated).
It's a fpc zif low profile connector. It come from camera sensor, it is very small : 0.3mm between 2 pins.
I ordered 2 from Aliexpress called « 0.3mm pitch » but one was 0.5mm between 2 pins and the other 0.6mm. In fact « 0.3mm pitch » seams to be the pad width and not the distance between 2 pins.
I can't find it. The other websites like mouser dont show the datasheet, and I can't check if it is 0.3mm between 2 pins ?

Do you know how to find this connector please ? What is the exact name for find it ?

...
- Channel: General Electronics Technical Discussion
08-06-2024, 05:25 PM
vizio e650i-a2 backlight flashes then turns off

by SS454

vizio e650i-a2 (LWJAOZBP Serial) led backlight flashes then turns off, has video (via flashlight) and audio.

panel: au optronics T650HVN05.4
72 led total on 12 strips, 6 led per strip wired in three groups of 24 (led driver board has three anode and three cathode pins)
link to datasheet: https://datasheetspdf.com/pdf-file/8.../T650HVN05.4/1

Vizio 56.04219.641G (liteon PA-3231-01WN-LF) Power Supply Unit
https://www.shopjimmy.com/vizio-56-0...-power-supply/

Vizio 55.75J01.001G (91.75J10.004G) Main Board...
- Channel: Troubleshooting TVs and Video Sources
08-20-2020, 03:57 PM
MSI Pro Z790-P Wifi 1missing CPU pins

by DominanceINC

Hello,

I am a new forum member. I found a broken MSI motherboard with lot of problems. The other problems need schematic. Because, the missing parts what were breaking down with screwdriver and pliers at a standoff.
So, its actual problem is a missing Vcore and Gnd pins in the CPU socket. My question is that, can it be used safely without these two pins? Only for testing at first, while the other problems will be solved. I would wish repair them later.

The other spots are thermal phaste, because, the under educated installer of the CPU did wipe the contacts of the...

2 Photos
- Channel: Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
07-21-2025, 05:38 AM
what pins i need to short to power on the Dell XPS 13 9315 clamshell?

by Themutantrat

Does anyone know what pins i need to short to power on the Dell XPS 13 9315 clamshell? I have just the main board and I would like to get into the BIOS to enable boot on AC. Can anyone help me?
- Channel: Troubleshooting Laptops, Tablets, and Mobile Devices
07-27-2025, 10:23 PM
Samsung galaxy s21 exynos (sm-g991B/DS) uart pins

by ns_ripper

Hi everyone,

Can someone help me with a schematic/boardview of this phone?
I'm looking to identify the rx and tx uart pins on the board.
Because I want to use the usb-port for power and other things, I can not use the uart over usb method.
I took some pictures but without the boardview/schematic it's a bit daunting.
Images:
https://photos.app.goo.gl/vzYVtVcZgz8trCT48

I'm uspecting the masked pads above the ufs chip. (but offcourse I'm not sure).
- Channel: Schematic Requests ONLY!
07-21-2025, 08:49 AM
Loading...
No more items.

y520-15IKBN

Comment

Comment

Related Topics