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Search: Posts Made By: Sudoer
Forum: BIOS Requests ONLY! 06-07-2022, 02:50 PM
Replies: 7
Views: 1,508
Posted By Sudoer
Re: Lenovo ThinkPad 13

Thanks, it works.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 06-02-2022, 06:20 PM
Replies: 5
Views: 274
Posted By Sudoer
Re: Dell Latitude E6540 LVDS socket

voilą
Ordered from aliexpress
Forum: BIOS Requests ONLY! 05-18-2022, 03:59 PM
Replies: 5
Views: 497
Posted By Sudoer
Re: Need tp401 Bios

Thanks, works for me
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-07-2022, 01:22 AM
Replies: 5
Views: 274
Posted By Sudoer
Re: Dell Latitude E6540 LVDS socket

I'll try this one. Hope the lvds cable fit to the connector. Thanks a lot
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-06-2022, 04:24 PM
Replies: 5
Views: 274
Posted By Sudoer
Re: Dell Latitude E6540 LVDS socket

40 pins, but little different. Anyway, thanks a lot, buddy
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-06-2022, 09:57 AM
Replies: 5
Views: 274
Posted By Sudoer
Dell Latitude E6540 LVDS socket

Fellas, please help, where to buy lvds socket ACES_59003-04006-001

https://www.badcaps.net/forum/attachment.php?attachmentid=263227&stc=1&d=1651852338

Or similar part. Dell also use the same...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-05-2022, 06:22 AM
Replies: 1
Views: 302
Posted By Sudoer
Re: Lenovo Y720 15IKB - ESD Damage any idea?

Fans, battery - it's EC, (for battery also charger and mosfets), keyboard light - another EC (two EC on the board), for HDMI - check U119 IC, sound - audio IC, camera connected to CPU, but the laptop...
Forum: Schematic Requests ONLY! 05-04-2022, 07:38 AM
Replies: 5
Views: 1,570
Posted By Sudoer
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-03-2022, 10:19 PM
Replies: 8
Views: 323
Posted By Sudoer
Re: Dell Latitude E7440 battery issue

The good signal should be looks like this one
https://badcaps.net/forum/attachment.php?attachmentid=263025&stc=1&d=1651637790

And this one - what I see on the bad EC
...
Forum: BIOS Requests ONLY! 05-02-2022, 11:15 PM
Replies: 17
Views: 6,725
Posted By Sudoer
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 05-02-2022, 03:21 PM
Replies: 8
Views: 323
Posted By Sudoer
Re: Dell Latitude E7440 battery issue

Solved. The problem was with EC. Replaced, flashed. Works. Profit.
Have another two LA-9591P mobos. Won't power on. There's 3 and 5V powered up, but no 3V on flash memory. In this case, check U45...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 04-27-2022, 10:22 AM
Replies: 8
Views: 323
Posted By Sudoer
Re: Dell Latitude E7440 battery issue

It's DIY charger with one wire chip, BIOS see it like 180w charger. And battery, and discharge battery. But not charging. It's 4-th E7440 in my lab, haven't seen problem like this before.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 04-26-2022, 07:37 PM
Replies: 8
Views: 323
Posted By Sudoer
Re: Dell Latitude E7440 battery issue

There's almost 8V on battery + pin, when battery plugged in. But no charging. Due to the schematic, the motherboard have 65w 45w power supply protection. 65W is too much...looks like, it must work...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 04-26-2022, 04:37 PM
Replies: 8
Views: 323
Posted By Sudoer
Dell Latitude E7440 battery issue

Dell Latitude E7440 LA-9591P. The laptop sees the battery, its health, determines the charge, determines the power supply. But the battery is not charging. If boot into Windows, the battery charge...
Forum: BIOS Requests ONLY! 04-25-2022, 12:06 PM
Replies: 32
Views: 10,879
Posted By Sudoer
Re: hp 15 ay125nr GDL50 LA-D707P rev 1.0

Thanks a lot. Works like a charm!
Forum: Schematic Requests ONLY! 04-12-2022, 06:15 PM
Replies: 2
Views: 432
Posted By Sudoer
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 04-12-2022, 12:42 PM
Replies: 3
Views: 268
Posted By Sudoer
Re: Asus E203MA

The bottom side. The charger IC is there. Anyway, by the boardview this chain (DC jack - capacitors- mosfet - charger) checked twice. Looks OK, but doesn't work.
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 04-12-2022, 12:37 PM
Replies: 3
Views: 268
Posted By Sudoer
Re: Asus E203MA

Thanks for the quick response. Sorry for taking so long.

source & drain = 20 MΩ
source & gate = 1 MΩ
gate & drain= 1.1 MΩ

Charger pwm is BQ24780S. Replaced just for case.
...
Forum: Announcements & Related News 04-04-2022, 11:24 AM
Replies: 30,164
Views: 3,073,065
Posted By Sudoer
Re: New Members - please post your introductions here

Hello everyone.
I'm from Israel. I am an electronics enthusiast, trying to fix laptops mobos aaaand for sure need a lot of knowledge to turn an enthusiast into a pro. Glad to be here at the...
Forum: Troubleshooting Laptops, Tablets, and Mobile Devices 04-04-2022, 07:23 AM
Replies: 3
Views: 268
Posted By Sudoer
Asus E203MA

Won't turn on. On laboratory power suply (LPS) 0.030A appear and disappear. Input mosfet (PQ8901) won't open. Replaced capacitors and resistor. Nothing. No short-circuits....
Forum: Schematic Requests ONLY! 04-03-2022, 04:59 PM
Replies: 42
Views: 26,420
Posted By Sudoer
Re: daax3mb16a1 rev:a DDR2 version schematic needed.

I got this piece of electronics. Plugged in to laboratory power supply. 0.004A, no reaction on power button. There's 3&5V on coils. Have 3V on power button, BIOS chip, EC. But no start at all. WTF is...
Showing results 1 to 21 of 21

 
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