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Directory Topics Posts Last Post
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: 234 Posts: 41,657
234 41,657
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: 1 Posts: 3
Last Post: ncp81208 datasheet
1 3
xaruqui
by xaruqui
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: 3,183 Posts: 32,673
3,183 32,673
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: 4,493 Posts: 74,806
4,493 74,806
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: 3,962 Posts: 44,276
3,962 44,276
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: 6,789 Posts: 37,157
6,789 37,157
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: 499 Posts: 5,433
499 5,433
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: 31,742 Posts: 302,274
31,742 302,274
Sub-Forums:
BIOS Requests ONLY! (12,642/152,074)
Schematic Requests ONLY! (4,714/28,317)
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: 5,318 Posts: 75,670
5,318 75,670
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: 27,430 Posts: 374,423
27,430 374,423
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: 4,178 Posts: 65,185
4,178 65,185
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: 301 Posts: 1,662
301 1,662
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: 2,316 Posts: 27,413
2,316 27,413
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: 222 Posts: 3,896
222 3,896
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: 999 Posts: 10,858
999 10,858
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: 1,375 Posts: 19,357
1,375 19,357

What's Going On?

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There are currently 796904 users online. 4338 members and 792566 guests.

Most users ever online was 1,196,122 at 03:31 PM on 12-14-2023.

Badcaps Statistics

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Topics: 102,008   Posts: 1,266,606   Members: 491,171   Active Members: 16,364
Welcome to our newest member, Hall Smith.

Latest Topics

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  • paparazzo79
    14V adapter for 19V monitor
    by paparazzo79
    Hi guys.
    I ordered used LG 34UM88 monitor which should come with 19V 5.76 A adapter from LG.
    I payed for monitor but sadly I got scammed it came with 14V 58W Samsung adapter.
    Luckly I did not even tried to turn on monitor, but I think they used the 14V adapter.
    Is it possible to use 14V adapter and what already damage could happen?
    Today, 11:04 AM
  • trepachka
    BIOS rebuild requested for HP Pavilion Aero 13-be0003ca laptop
    by trepachka
    Hello, I have the following laptop:

    HP Pavilion Aero 13-be0003ca
    ProdID: 2L7M8UA#ABL
    S/N: 8CG150GPV6

    Motherboard information is below:

    HP Part# M52826-601
    448.ONE04.0011
    203016-1

    It needs BIOS repaired.

    I created a flash drive using HP firmware utility and then had it plugged into the computer. I did the standard WinLogo->B key->Power button press. A window appeared and immediately began flashing the bios using the flash drive.
    But I don't think it finished all the way. So, now when I attempt...
    04-21-2024, 10:57 PM
  • mitchw
    Need a HP 255 G8 (HPL51 LA-L021P) BIOS
    by mitchw
    Looking for a BIOS for HP 255 G8 (HPL51 LA-L021P).

    The main problem is that the laptop will crash while booting to OS. Will crash even on booting from USB, like a Ubuntu or to a Windows 11 installer.
    Before junking the board I would try the new BIOS if it does anything.

    Thank you!...
    Today, 10:03 AM
  • nickstyle
    Acer Nitro 5 515-57 GPU problem
    by nickstyle
    Hi, i have this laptop and in device manager the RTX 3050TI has an exclamation mark
    Tried windows 11 and 10 and same thing
    Any ideea what is the problem?
    Today, 08:51 AM
  • cap__
    How to replace SMD blue Led with conventional red LED?
    by cap__
    "I heard that a blue LED has different voltage values than green and red ones. Green and red ones are easily replaceable, but how do I do that with the blue one?"

    "I have to use the blue one, because green means fully charged and blue means charging."





    [ATTACH=JSON]{"data-align":"none","data-size":"full","title":"20240415_172809.jpg","data-attachmentid":3253246}[/ATTACH]...
    04-15-2024, 09:59 AM
  • sew333
    Can i plug pc on this apartment with older fuse box?
    by sew333
    Hello. I will be buying new apartment to live. But fuse box is older. Not the newest.

    And my question. It will be fine to plug pc in this new apartment with that fuse box,i think it is aluminium,right?

    PC WILL BE: Rtx 4090,14900K,1600W PSU

    It looks like this ( screen from internet ). Looks like this,not sure i dont take a pic from there. Can i plug pc with that one?

    screen of this:
    [ATTACH=JSON]{"alt":"Click image for larger version Name:\tGetty-Images-1345734173.jpg Views:\t0 Size:\t236.3 KB ID:\t3244496","data-align":"none","data-attachmentid":"3244496","data-size":"full","title":"Getty-Images-1345734173.jpg"}[/ATTACH]...
    03-29-2024, 05:37 PM
  • ahoonid
    820-00165 Random green light on charger
    by ahoonid
    Hey everyone,

    I have a MacBook Air 2017 with a weird problem. The MacBook was totally dead at first and the culprit was the C7430 capacitor which was obvious upon initial inspection as it had a fracture on its surface.

    The F7140 fuse was also blown so I changed them both. L7130 due to corrosion was also replaced. Now everything works again. Laptops turns on and everything seems reliable at this point.

    The only issue that I'm afraid might bite me in the ass later is the magsafe light as it randomly changes light from orange to green while charging. Other times...
    04-10-2024, 04:06 PM
  • mikkele86
    Luxman R-5045 - Cant adjust current bias
    by mikkele86
    Hello good people of badcaps.

    im back with another question

    Im trying adjust the current bias accordingly to the manual, but my meter is showing the same value no matter whatever position VR-804a/VR-804b is in.

    DC bias is adjusted and is working as intended.

    Is my settings on the multimeter wrong ? or should i look for a bad component

    note: all transistor are new

    Picture from manual
    [ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"444","title":"image.png","width":"687","data-attachmentid":3259133}[/ATTACH]...
    Today, 10:19 AM
  • NConstantinou
    Lenovo Yoga 370 NO DISPLAY
    by NConstantinou
    Dear all,

    the laptop is charging, i have 3.3,5v and 1v on coils. when i switch on the fan spins and stops.. i tried removing the battary and hold the power button by removing power cable for 60 sec but nothing.
    does anyone has any suggestions!

    i noticed the sw3 on board is broken completely.

    thanks
    Today, 10:16 AM
  • fedeRaider
    Samsung ue55mu6120kxzt
    by fedeRaider
    Hello everyone

    My TV no longer shows signs of life, but if I unplug the motherboard, the backlight works.

    I bought a CH341A USB Programmer, and this is my dump (BN41-02568B):

    Could someone help me fix it?...
    Today, 06:05 AM

Trending

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  • mitchw
    Need a HP 255 G8 (HPL51 LA-L021P) BIOS
    by mitchw
    Looking for a BIOS for HP 255 G8 (HPL51 LA-L021P).

    The main problem is that the laptop will crash while booting to OS. Will crash even on booting from USB, like a Ubuntu or to a Windows 11 installer.
    Before junking the board I would try the new BIOS if it does anything.

    Thank you!...
    Today, 10:03 AM
  • fedeRaider
    Samsung ue55mu6120kxzt
    by fedeRaider
    Hello everyone

    My TV no longer shows signs of life, but if I unplug the motherboard, the backlight works.

    I bought a CH341A USB Programmer, and this is my dump (BN41-02568B):

    Could someone help me fix it?...
    Today, 06:05 AM
  • MDSI
    Asus X705UV bios
    by MDSI
    Hello.

    I have an Asus X705UV which no longer starts since the last Windows update. I suspect Windows Update of having tried to update the bios and having corrupted it, because currently, I have the charging indicator when I plug in the charger and I have the power indicator when I press the on/off button but nothing more, not even a fan running.
    Could someone check this bios and if it is broken, repair it?

    Sorry in advance, google translate is useful but not perfect. 😂

    Thank you in advance !​ 🙏...
    Today, 06:38 AM
  • nickstyle
    Acer Nitro 5 515-57 GPU problem
    by nickstyle
    Hi, i have this laptop and in device manager the RTX 3050TI has an exclamation mark
    Tried windows 11 and 10 and same thing
    Any ideea what is the problem?
    Today, 08:51 AM
  • alford111
    Predator Helios 300 G3-571-77QK schematic requires
    by alford111
    Hi. Can any one help me with a schematic for Predator Helios 300 G3-571-77QK. Many thanks in advance.
    Today, 02:35 AM
  • orgamisho
    Troubleshooting Asus Tuf Gaming A15 FA506QM 33v & 5v rails
    by orgamisho
    Hello!

    I am still learning on laptop repairs and I am currently working on the above mentioned device.
    Currently the laptop is dead (no power on). The device takes 2-3 mA when 20v are injected onto the charging plug.
    Main power rail is present (20v), but no other power rail is present, including the 3v and 5v. I noticed that when no power is connected the 3v and 5v coils have large (normal) resistence to ground, but when I plug the power, both are being shorted to ground.
    I wonder is that an expected behavior or there is an outer protection activated.

    ...
    Today, 08:22 AM
  • Zhab27
    UE49MU6400 (BN94-12399N) no standby
    by Zhab27
    Всім доброго дня!
    Режиму очікування немає.
    Перепаяв SPI 25Q40 і прочитав прошивку. У дампі перші байти не стираються. Записав дамп донора BN94-12399N, режим очікування з'явився з , але телевізор все одно не виходить в робочий режим. Будь ласка, допоможіть відновити рідний дамп!
    Today, 05:55 AM
  • timonix20
    Looking for eMMC Replacement for Sony LG 60la620s EAX64797004 (1.1) with Boot Issue
    by timonix20
    hello everyone I am looking for a solution for my tv, I think corruption of the eemc,

    the TV starts, LG logo, then nothing (rear backlight)
    no reaction to rear command or infrared


    the usb procedure that I tried on the LG site is a procedure with the screen and the remote control so I can't.


    I have a chance with a usb procedure or other if you have .bin

    if any people have this main board

    Sony LG 60la620s EAX64797004 (1.1)

    [ATTACH=JSON]{"data-align":"none","data-size":"full","title":"1713895782944.jpg","data-attachmentid":3258485}[/ATTACH]...
    Yesterday, 01:52 PM
  • mikkele86
    Luxman R-5045 - Cant adjust current bias
    by mikkele86
    Hello good people of badcaps.

    im back with another question

    Im trying adjust the current bias accordingly to the manual, but my meter is showing the same value no matter whatever position VR-804a/VR-804b is in.

    DC bias is adjusted and is working as intended.

    Is my settings on the multimeter wrong ? or should i look for a bad component

    note: all transistor are new

    Picture from manual
    [ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"444","title":"image.png","width":"687","data-attachmentid":3259133}[/ATTACH]...
    Today, 10:19 AM
  • NConstantinou
    Lenovo Yoga 370 NO DISPLAY
    by NConstantinou
    Dear all,

    the laptop is charging, i have 3.3,5v and 1v on coils. when i switch on the fan spins and stops.. i tried removing the battary and hold the power button by removing power cable for 60 sec but nothing.
    does anyone has any suggestions!

    i noticed the sw3 on board is broken completely.

    thanks
    Today, 10:16 AM
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