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Badcaps Capacitor & Electronics Repair Forum
Frequently Asked Questions (No Posting)
All new members, PLEASE READ HERE FIRST! Posting only allowed by established members.
Topics: 45 Posts: 733
45 733
Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
Topics: 236 Posts: 42,116
236 42,116
Document & Software Archive
Common Parts Library - Datasheets
Share or download datasheets or application notes for electronic components and other parts. Contribute your knowledge or ask questions. Before using please read our Terms of Service.
Topics: 2 Posts: 5
2 5
General Topics
General Capacitor Questions & Issues
Questions and answers for identifying whether your device has bad capacitors. Also post general capacitor-related questions and issues here.
Topics: 3,190 Posts: 32,711
3,190 32,711
General Computer & Tech Discussion
Have just a general computer question, post it here. This can be anything from an OS issue, hardware issue not related to capacitors, upgrade question, or whatever basic tech-related issue is on your mind.... This is also a good place to share your tech projects!
Topics: 4,499 Posts: 74,857
4,499 74,857
rogfanther
Troubleshooting Hardware & Devices and Electronics Theory
General Electronics Technical Discussion
If you have a general question concerning basic electronics theory or component function & usage, here's where it goes.
Topics: 3,979 Posts: 44,392
3,979 44,392
Troubleshooting Desktop Motherboards, Graphics Cards, and PC Peripherals
Technical discussions covering any type of desktop motherboard, video/graphics card, controller card, or whatever other desktop peripheral you need help with. Any and all brands and models welcome. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 6,843 Posts: 37,431
6,843 37,431
Sub-Forums:
Troubleshooting & Designing Networks
Post your computer network questions, ideas, gripes, and so on in here. This can be any type of network, whether its cabled, wireless, or whatever. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 501 Posts: 5,455
501 5,455
Troubleshooting Laptops, Tablets, and Mobile Devices
Technical discussions covering any type of laptop, notebook, netbook, tablet, or smartphone. Any and all brands and models welcome. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 32,029 Posts: 305,873
32,029 305,873
Sub-Forums:
BIOS Requests ONLY! (12,769/154,263)
Schematic Requests ONLY! (4,766/28,624)
Troubleshooting Computer Displays
Technical discussions covering any type of PC/computer display, whether it be CRT, LCD, or anything else. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 5,324 Posts: 75,721
5,324 75,721
Troubleshooting TVs and Video Sources
Technical questions about your defective television, projection screen, LCD/plasma, or any other type of video device. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 27,472 Posts: 375,019
27,472 375,019
Davi.p
by Davi.p
Troubleshooting Power Supplies and Power Supply Design
Technical discussion for power supplies. This covers PC supplies, and any other related power supply issue. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 4,184 Posts: 65,251
4,184 65,251
Troubleshooting Printers, Copiers, Scanners and other Imaging & Printing Devices
Technical questions about your defective laser or ink printer, plotter, copier, scanner, and other imaging & printing devices. This section also includes digital cameras. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 304 Posts: 1,672
304 1,672
Troubleshooting Audio Equipment
Technical discussion on audio equipment troubleshooting and installation. This can be anything from a home/car stereo, guitar amp, and so on. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 2,331 Posts: 27,546
2,331 27,546
Troubleshooting Appliances and other Household Electronic Stuff
Technical discussion on household appliances & other household electrics & electronics; including troubleshooting and installation. This can be anything from a washer/dryer, dishwasher, microwave oven, other sordid kitchen electrics and so on. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 225 Posts: 3,930
225 3,930
stj
by stj
Troubleshooting Game Consoles & Other Weird Devices
This can be anything from game consoles to arcade games to anything else that doesn't really fit into any of the above categories. When starting a new thread, please put the make AND model of your device in the thread title. Also be VERY descriptive of your issue, that way you'll get the best answer possible!
Topics: 1,005 Posts: 10,894
1,005 10,894
Equipment Usage, Soldering, Techniques, and Reviews
Technical discussions concerning soldering techniques, usage of test equipment, how it works, what's best, and some pointers in using it all.
Topics: 1,381 Posts: 19,446
1,381 19,446

What's Going On?

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There are currently 401510 users online. 4448 members and 397062 guests.

Most users ever online was 1,342,976 at 10:51 PM on 04-26-2024.

Badcaps Statistics

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Topics: 102,506   Posts: 1,272,272   Members: 494,736   Active Members: 16,742
Welcome to our newest member, emirhan7859.

Latest Topics

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  • hotgly
    Surface Pro 9, i5 version, lost touch on screen after upgrading hard drive, and ISH Power State shows Disabled
    by hotgly
    After upgrading the factory 128Gb SSD to a 512Gb WD_Black SN770M, this surface pro lost touch on screen, no touch in windows or in UEFI.
    The Human Interface Devices did find touch and stylus but it shows Disabled in windows device manager.
    I am not sure if this is a bios problem or hardware problem, already tried reinstall and reset from windows, not working. And now trying to clean/reset the bios.

    Computer model is: Surface Pro 9, i5, 8GB memory, 128GB
    Serial number: 0F00S2Y22353BF

    Intel(R) ME Code Versions:
    BIOS Version 12.200.143
    MEI Driver...
    Yesterday, 02:20 PM
  • chickenhawk88
    Help finding part number
    by chickenhawk88
    I need help trying to figure out these components.[LIST=1][*]There is large “Q” almost looks like Qualcomm, FA7808 or FA7608, 2039CC[*]This chip has marking of VE with 5 pins.[*]This chip has marking eHCSN.[/LIST]
    Thanks for helping. Im trying to fix laptop motherboard and not having much luck.

    1. I need help trying to figure out these components.[LIST=1]
    2. There is large “Q” almost looks like Qualcomm, FA7808 or FA7608, 2039CC
    3. This chip has marking of VE with 5 pins.
    4. This chip has marking eHCSN.[/LIST]
      Thanks for helping. Im trying to fix laptop motherboard and
    05-14-2024, 04:00 PM
  • Davi.p
    Reduce photos please..
    by Davi.p
    Hi all, i'm asking all to reduce photos to a more comfortable resolution before post, the better like around 2000x2000, otherwise many PC / Tablets / phones refuses often to load them or has strong defection... today's digital cameras integrated in phones especially are a mockery because them saves photos at enormous resolutions with much less the real definition, so reducing them is only a good deal.. THANKS!!

    PS: Asking the staff to be made sticky or integragted also in the title on another one sticky post...
    Today, 12:53 AM
  • Runlinc
    Samsung QE50Q60TAU - Horizontal screen lines
    by Runlinc
    Hi everyone, the tv was in a continuous reboot cycle. To get the best screen image i can I taped the VGH and VSS pins on the left side buffer board joining ribbon.

    I am left with a good image apart from the black horizontal lines that I cannot get rid of.

    I cannot find anything on the buffer boards that has shorted.

    Do you think there is anything i can do to eliminate the lines, or are they caused by an internal panel short and the image cannot be impoved.

    Many thanks for your assistance
    05-14-2024, 07:40 AM
  • arif3203
    HP 430 G8 Security Endpoint controller Problem
    by arif3203
    HI badcaps members

    Please Help me,Problem Hp 430 Security endpoint Problem
    HP 430 G8
    Sn:5CD1318NT7
    Code: DAX8PMB18A0 REV A...
    Yesterday, 11:02 PM
  • Salmus666
    Lenovo Yoga slim 7 13ACN5 Bios dump/Password remove
    by Salmus666
    Hello
    Can somebody help me to clear bios password?
    SN:YX03GLMW
    Factory ID:HQ006
    MB:NB2857_MB_V5_PCB
    [ATTACH=JSON]{"alt":"Click image for larger version Name:\timage.png Views:\t0 Size:\t972.8 KB ID:\t3271854","data-align":"none","data-attachmentid":"3271854","data-size":"custom","height":"287","title":"image.png","width":"325"}[/ATTACH]

    Thank you Hello
    Can somebody help me to clear bios password?
    SN:YX03GLMW...
    Yesterday, 11:23 PM
  • lorins_core
    BQ24800 to can it be replaced with these parts BQ24780S
    by lorins_core
    Hello to all.

    may I have a question about these Semiconductor parts BQ24800RUYR? can it be replaced with these parts BQ24780SRUYR?

    I need some good advice and also some information about it. thank you and God Bless...
    05-10-2024, 07:56 PM
  • Nagyesz
    Lenovo Ideapad 320-15ikb: Comes on and goes off
    by Nagyesz
    Hey guys, I have a Lenovo Ideapad 320-15ikb NM-B241 rev:1.0.
    After turning it on, it runs for a few seconds then shuts off completely. No screen, no fan. After shutdown, a red light comes on and off fast. I've been trying to troubleshoot this for days now. It's never been opened up; the Lenovo sticker is still intact.

    (!)I tried with a different BIOS battery, without any ribbon cables, on battery power, without the keyboard, and it's always the same.

    Any insights on what might be causing this?...
    05-13-2024, 03:05 AM
  • ResoluteHawk
    ASUS GA401QM No ACDRV, No CMSRC
    by ResoluteHawk
    I have an Asus G14 (GA401QM) that has a power issue. Originally the board had a shorted 5V rail and dead EC. I reballed a working EC, soldered it on, and I resolved the 5V issue by replacing the APL6012 and the low side 5V mosfet. Resistances on all power rails are healthy now, but 20V does not make it through the first MOSFET. 20V is present on the drain of the first MOSFET, but there is no voltage on the gate or source.

    When diagnosing this issue, I thought that the issue was due to the BQ24800 chip not outputting the correct signals so I soldered on a known working chip and the...
    05-08-2024, 01:30 PM
  • cope
    Battery not charging in ASUS G532LWS Motherboard -> BQ24780S
    by cope
    Hi everyone,

    I have been working on a no power issue with my personal ASUS gaming laptop. It went dead a few months ago.

    Some history:

    Since then, I've found a blown mosfet on the GPU line which I replaced. It started up without a battery, then when I added the battery back it wouldn't start up again.

    As a result, there were some blown components around the BQ chip. (The BQ chip itself - BQ24780S, the low side battery mosfet (shorted), and a resistor -> all replaced)

    Now, with a new battery the system will start up and run off...
    05-13-2024, 09:40 AM

Trending

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  • arif3203
    HP 430 G8 Security Endpoint controller Problem
    by arif3203
    HI badcaps members

    Please Help me,Problem Hp 430 Security endpoint Problem
    HP 430 G8
    Sn:5CD1318NT7
    Code: DAX8PMB18A0 REV A...
    Yesterday, 11:02 PM
  • hotgly
    Surface Pro 9, i5 version, lost touch on screen after upgrading hard drive, and ISH Power State shows Disabled
    by hotgly
    After upgrading the factory 128Gb SSD to a 512Gb WD_Black SN770M, this surface pro lost touch on screen, no touch in windows or in UEFI.
    The Human Interface Devices did find touch and stylus but it shows Disabled in windows device manager.
    I am not sure if this is a bios problem or hardware problem, already tried reinstall and reset from windows, not working. And now trying to clean/reset the bios.

    Computer model is: Surface Pro 9, i5, 8GB memory, 128GB
    Serial number: 0F00S2Y22353BF

    Intel(R) ME Code Versions:
    BIOS Version 12.200.143
    MEI Driver...
    Yesterday, 02:20 PM
  • Davi.p
    Reduce photos please..
    by Davi.p
    Hi all, i'm asking all to reduce photos to a more comfortable resolution before post, the better like around 2000x2000, otherwise many PC / Tablets / phones refuses often to load them or has strong defection... today's digital cameras integrated in phones especially are a mockery because them saves photos at enormous resolutions with much less the real definition, so reducing them is only a good deal.. THANKS!!

    PS: Asking the staff to be made sticky or integragted also in the title on another one sticky post...
    Today, 12:53 AM
  • Nagyesz
    Lenovo Ideapad 320-15ikb: Comes on and goes off
    by Nagyesz
    Hey guys, I have a Lenovo Ideapad 320-15ikb NM-B241 rev:1.0.
    After turning it on, it runs for a few seconds then shuts off completely. No screen, no fan. After shutdown, a red light comes on and off fast. I've been trying to troubleshoot this for days now. It's never been opened up; the Lenovo sticker is still intact.

    (!)I tried with a different BIOS battery, without any ribbon cables, on battery power, without the keyboard, and it's always the same.

    Any insights on what might be causing this?...
    05-13-2024, 03:05 AM
  • E--Man
    Samsung LED UHD TV - Bad Main Board or Bad T-Con Board? Pictures inside
    by E--Man
    Hi All,

    Thanks for reading. Based on the interesting fact that the vertical lines issue don't seem to effect the menus whatsoever but rather everything around the menu regardless of video is shown, I'm trying to set mine whether the issue is the main board or the t-con board.

    Again what's baffling is that the menu is not effected whatsoever. However, any other video displayed regardless of inputs or when no inputs exist exhibits the vertical lines and seem to effect black areas only.

    The lines are green in color when the tv is in "Game Mode" and...
    05-12-2024, 10:52 AM
  • Salmus666
    Lenovo Yoga slim 7 13ACN5 Bios dump/Password remove
    by Salmus666
    Hello
    Can somebody help me to clear bios password?
    SN:YX03GLMW
    Factory ID:HQ006
    MB:NB2857_MB_V5_PCB
    [ATTACH=JSON]{"alt":"Click image for larger version Name:\timage.png Views:\t0 Size:\t972.8 KB ID:\t3271854","data-align":"none","data-attachmentid":"3271854","data-size":"custom","height":"287","title":"image.png","width":"325"}[/ATTACH]

    Thank you Hello
    Can somebody help me to clear bios password?
    SN:YX03GLMW...
    Yesterday, 11:23 PM
  • ritalo
    MacBook Air 13 2014 - Remove EFI password
    by ritalo
    Hello,

    I have a MacBook Air 13 inches 2014.

    I have set a EFI password and I can't remember it : now I want to reinstall macOS and I can't because the MacBook is asking for the password.

    I know how to remove the password with a usb programmer.
    I plug the usb programmer to the motherboard and to my pc with usb, I read the EFI and I save it to a file.

    Then I have to find this value in the file : $SVS because it indicate where is the password.

    But I can't find the value.

    I have attached the file​

    Thank...
    05-14-2024, 12:10 PM
  • Rickkap
    Legion 5 15IAH7H BIOS please
    by Rickkap
    Brand: LENOVO
    Serial: PF3YCHF2
    Model name: Legion 5 15IACH7H

    BIOS request for the above model or if someone could convert the .exe file from Lenovo website please.

    PS i don't have the original as it's been somewhere else and they screwed it up.

    Thanks

    ​...
    Yesterday, 09:22 AM
  • tuankietkiet
    Dead Dell Inspiron 14r N4010 (Used to beeps 3 times but no longer do)
    by tuankietkiet
    When plugged in (no battery installed), the battery light on the motherboard lights up and then turn off. When powering on, the same and light and the power button also light up in a white color but no output on the display. It stayed like that for a few seconds before shutting down. I also seem to ruined a connector that connects to the WLAN, 2 USB and audio board, the same board also have a melted 2062A IC. I will post pictures in the reply section
    05-11-2024, 04:40 AM
  • chickenhawk88
    RAZER BLADE 15 2021 MODEL, No power, shorted rails.
    by chickenhawk88
    The laptop I am working on is RAZER BLADE 15 , RZ09-0369, the motherboard is DA560 VER 4.0. The original fault was it powered up with keyboard rgb on and no video on screen/hdmi. I found corrosion on memory module that leaked onto the memory socket. I cleaned the memory socket and was able to boot normal with other memory socket with good memory. I really should have stopped at this point as everything was working except for the one bad memory slot.

    I wanted to find out what was wrong with the other memory slot. I replaced a 330uf cap, a buck converter on back of board and when i...
    Yesterday, 06:37 PM
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