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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: 46 Posts: 735
46 735
Thermaltake
Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
Topics: 238 Posts: 48,637
238 48,637
Document & Software Archive
Schematics and Boardviews
Share or download schematics and boardview files. Contribute your knowledge or ask questions. Before using please read our Terms of Service.
Topics: 2,146 Posts: 2,396
2,146 2,396
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: 58 Posts: 67
58 67
leonce
by leonce
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: 3,245 Posts: 33,111
3,245 33,111
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: 4,566 Posts: 75,340
4,566 75,340
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: 4,191 Posts: 46,072
4,191 46,072
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: 7,656 Posts: 42,938
7,656 42,938
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: 526 Posts: 5,619
526 5,619
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: 35,945 Posts: 361,737
35,945 361,737
Sub-Forums:
BIOS Requests ONLY! (14,255/194,406)
Schematic Requests ONLY! (5,437/32,308)
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: 5,413 Posts: 76,290
5,413 76,290
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: 28,039 Posts: 382,715
28,039 382,715
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: 4,303 Posts: 66,275
4,303 66,275
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: 337 Posts: 1,799
337 1,799
eugeneflex
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: 2,484 Posts: 28,460
2,484 28,460
Jvoid22
by Jvoid22
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: 301 Posts: 4,719
301 4,719
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: 1,132 Posts: 11,786
1,132 11,786
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: 1,410 Posts: 19,835
1,410 19,835
Specifications
Laptop, Tablet, & Notebook Specifications
Basic specifications for laptops, tablets, & notebooks. We are constantly adding new content like boardviews, schematics, fixes, and other data here.
Topics: 101,079 Posts: 101,088
101,079 101,088
Server, iMac, & Desktop PC Specifications
Basic specifications for server, iMac, & desktop computers. We are constantly adding new content like boardviews, schematics, fixes, and other data here.
Topics: 8,712 Posts: 8,716
8,712 8,716

What's Going On?

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There are currently 609559 users online. 5277 members and 604282 guests.

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

Badcaps Statistics

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Topics: 219,180   Posts: 1,459,883   Members: 562,226   Active Members: 22,985
Welcome to our newest member, Aadesh Sriram.

Latest Topics

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  • DeXXter
    Acer nitro 5 LA-L191P issue on 3v_en
    by DeXXter
    Hello, I'm having issues with this acer nitro 5 GH53G LA-L191P, I bought it for repair and found out the problem was de BQ24781, replaced this and the laptop worked, but the battery was on 4v and didn't charge beyond that, on windows was detected, but on 0%, so I used the power supply to try to charge the battery, with the laptop off, so at some point the battery took current and I was on this for two minutes (used 14v/2a, label says 15/17v max) and after this the laptop stopped taking current and when I tried to turn it on, it doesn't.
    So I measured the laptop and when plugged in I got...
    03-13-2025, 04:23 AM
  • mac_hal
    Samsung XE310XBA-KC1US bios unlock
    by mac_hal
    Hello,
    I have this Samsung Chromebook that has a corporate lock and i cant use it. Can someone remove this lock on the bios file?

    Model: XE310XBA-KC1US, BA98-02032DIG
    Motherboard BA62-01035A REV:1.0 JOAN-15
    S/N: 4WQR9FBR440766K

    Bios file in attachement.

    Thanks in advance.​...
    Yesterday, 04:37 AM
  • omeggga
    G502 lightspeed not working except for battery lights
    by omeggga
    Good morning, I signed up for this forum because I need help fixing my LogitechG502 Lightspeed.

    So I got a cheap used G502 under the pretense that the USB was busted and while it would charge, on wired mode it would not work, windows would not recognize it, or even give the little jingle when plugged in... but it would charge.

    So I think "ok challenge accepted, it's probably that the data bus on the usb is busted. I solder in a new one and I get a cheap wireless G502 that I've been wanting for years!"

    Nope, wireless doesn't work either, G-hub detects...
    03-13-2025, 04:27 AM
  • Ritchie_Uk
    Dell inspiron 13Z 5323 - Not Charging
    by Ritchie_Uk
    Hi there

    Would anybody know why a Dell Inspiron 5323 dosnt charge?
    The Battery was replaced after really badly Bulging, to the point where the case was being pushed open.

    What component would fail if it was overcharged to this point?


    The Laptop works perfectly on the Power Adapter.

    I don't have a Boardview or Schematic

    Could it be the Charge IC BQ07A?

    Any help would be appreciated

    [URL=filedata/fetch?id=3594621&d=1742172274][ATTACH=JSON]{"alt":"Click image for larger version...
    Yesterday, 06:45 PM
  • questore
    Lenovo Ideadpad gaming 3 15ACH6 not powering on
    by questore
    Hi Everyone.

    Board number is: LA-L171P Rev: 1A

    This laptop came to me as faulty.
    After some measurments I have noticed that 3.3V line has 5ohms resistance. After injection, EC was lit up like a christmas tree.
    EC removed, Short is gone, and every other line shown normal resistances so I have ordered a new pre-programmed EC

    EC come and I have soldered it. (Checked pins 4 times for shorts and connections to pad)
    Now when AC plugged in, The following lines come up normal:
    + VCIN1_AC_IN = 3.3V
    +3VLP = 3.3V
    + EC_ON = 3.1V...
    03-05-2025, 09:35 AM
  • Nicktronic
    Samsung Power Supply Board BN44-00874F
    by Nicktronic
    Hey everyone,

    This power supply board is hard to find but there are repair kits available. This board had a blown fuse, FP801S, blown PFC MOSFET, QP802CS and ceramic cap, CP809. I replaced them with parts I already had and tested the rest of the parts that would've come in the repair kit and they were fine. I powered the board up on the bench expecting, in typical Samsung power supply board fashion, to see all my output voltages but, nothing. 0 volts on CNL801, CNM801 and CNT801. The only thing I have is 170vdc on the filter caps. No standby voltage either.

    Anybody...
    Today, 06:20 AM
  • current505
    Lenovo M70Q 11T3 bios needed
    by current505
    Lenovo M70Q gen 3 11T3
    HB660 NM-D861
    IQ6X0IL2

    Computer was turned off while updating bios, no post only front led and fan spin for around 2-3 seconds then it turns off.
    03-15-2025, 08:15 PM
  • caprigtx
    What kind off chip is this.
    by caprigtx
    Can some one tell me what chip this is.
    see picture....
    Today, 08:48 AM
  • mikzs
    Rx470 Asus MINING no detected
    by mikzs
    Hello, I have a 470 mining edition with a DVI video port. This GPU is recognized by the PC, sometimes it can work with load and be used without problems, but from one moment to the next it can stop giving video and stop being recognized by the PC. I tried changing the BIOS, changing the BIOS chip, reflow in the core and memories, it should be noted that at all times the GPU has all the voltage rails in perfect condition. It was tested on another PC while in mine it was not recognized and if it detected it, it no longer works correctly. My PC is an i5 with a 4th Asrock motherboard, the PC where...
    Today, 06:26 PM
  • spleenharvester
    Toshiba 50UL2063DB randomly rebooting with HDMI-CEC and/or HDMI-ARC enabled
    by spleenharvester
    I have this TV hooked up to only an AppleTV 4K and a Creative soundbar. Originally HDMI-CEC and HDMI-ARC wouldn't work at all, I replaced all the HDMI cables with decent UGREEN cables meeting the latest standards, now it all works perfectly but once or twice a day the TV itself reboots while watching a program, the AppleTV keeps running. I haven't fully pinned down whether it is ARC or CEC causing it yet. All are running latest firmware.

    I assume it is just HDMI-CEC being buggy as usual on a shitty Vestel machine, but can anyone think of anything I can try before disabling it?
    03-12-2025, 03:42 PM

Trending

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  • D@nt3s_1nfern0
    820-02016-07 [Macbook Air m1 2020 A2337 EMC3598] 5.07V 0.00A NO POWER NO CHARGE
    by D@nt3s_1nfern0
    Hi there guys. This is my first post on this forum and my first attemp to fix a problematic board. Ill give you a litle pre history of the device. The Macbook was powering on but it wasnt charging (it was showing an X sign on the battery icon) i went to my local apple authorised repair centre and they told me that they tried with a new battery and charging port but the issue was still there so they said its a board issue. The laptop belongs to my partner and she already ordered a new one but she considers the data gone on this one. I want to try my best to fix it and surprise her. The laptop at...
    Today, 06:00 AM
  • unimatrix93
    How to stabilize AC voltage to CNC machine
    by unimatrix93
    Hello there everybody, I'm not sure if it's the right topic to ask this but I hope so.


    I have a CNC machine wired to 3-phase 230V AC.

    It's a smaller CNC machine with a 3500W motor, do it does not uses much power.

    The problem is, when the residents come home and put load on the network, the voltage can drop to around 207V which is fine for most household items but by CNC machine stops working from this.

    I contacted the electricity company but they refuse to help me solve this problem.

    So I started to look around for some DIY...
    Today, 05:52 AM
  • mikzs
    Rx470 Asus MINING no detected
    by mikzs
    Hello, I have a 470 mining edition with a DVI video port. This GPU is recognized by the PC, sometimes it can work with load and be used without problems, but from one moment to the next it can stop giving video and stop being recognized by the PC. I tried changing the BIOS, changing the BIOS chip, reflow in the core and memories, it should be noted that at all times the GPU has all the voltage rails in perfect condition. It was tested on another PC while in mine it was not recognized and if it detected it, it no longer works correctly. My PC is an i5 with a 4th Asrock motherboard, the PC where...
    Today, 06:26 PM
  • PNI E.
    Samsung ue55tu7170u not turn on and no standby led main bn9650990e
    by PNI E.
    Hi guys, I’m back here my friend give me her tv, that doesn’t turn on and no standby red led. When u plug in the cord the red led of one two second is on, then turn off. If you push the power button or the remote the red led blinks but nothing happen. I give u some photo with voltage, don’t look the fuse….because I blow it for mistake nd I dint have the right replace so I just put it for test the tv. The standby voltage should be 11,88 volt on the diode, but I have 13 volts. I put in the photo the different volts I test and there are someone negative…I don’t know if it s normal. On...
    Today, 04:23 AM
  • jackx
    lenovo E14 Gen 5 NM-F311 bios repair
    by jackx
    i need help to repair bios e14 core i7
    sn PF-4LAH2V 21jk-0053us
    NM-F311 v0.1...
    Today, 08:07 AM
  • tommy97
    Apple MacBook Pro A2485 - No backlight
    by tommy97
    Hi everyone,

    We're working on an [B]A2485 MacBook[/B] with [B]no backlight[/B] after liquid damage. The damage occurred near the [B]backlight IC (UP800)[/B]. We've checked all the nearby [B]resistors and capacitors[/B], and everything seems fine. We replaced [B]UP800 from a donor board[/B].

    However, [B]UP830 was also liquid damaged[/B], and after cleaning, [B]resistor RK830 came off[/B]. Unfortunately, I can't find its value, and the schematic doesn't indicate it as a critical component.

    Would anyone have insights or a way to confirm the RK830 value?
    ...
    Today, 12:22 PM
  • notrespond
    BIOS ASUS B1400CEAE
    by notrespond
    Hello can help me rebuild my old bios dump
    my old bios can't display

    TIPE : B1400CEAE-BV3420W
    SN : N2NXCV15A08908D
    BOARD : B1400CEPEY R.2.1...
    Yesterday, 11:02 PM
  • hichamhb
    lenovo p15v gen 3 enrollment or mdm
    by hichamhb
    please can anyone remove the enrollment or mdm from this bios. thanks
    lenovo p15v gen 3
    sn : PF-43ZJX6
    board : [B]JP6A0/JT6A0 NM-E221 Rev: 1.0[/B]please can anyone remove the enrollment or mdm from this bios. thanks
    lenovo p15v gen 3
    sn : PF-43ZJX6
    board : [B]JP6A0/JT6A0 NM-E221 Rev: 1.0[/B]
    ...
    03-15-2025, 05:53 AM
  • brotank
    Lenovo C861 Ryzen 5 disable 4GB samsung onboard ram
    by brotank
    I quiet struggling with board lenovo c681 to disable 4gb samsung onboard ram because they're faulty, I followed the instruction on the schematic to disable them with resistor codes but still not detecting the ram on the slot.

    can someone disable onboard ram from my dumped bios, please 🙏

    I tried the other bios on this forum with disabled onboard ram, but no success

    my final try is to find someone that can help disable onboard ram in my dumped bios attached in this post.

    after that I officially give up 😂

    thanks for awesome jobs 😊...
    Yesterday, 12:51 PM
  • Nicktronic
    Samsung Power Supply Board BN44-00874F
    by Nicktronic
    Hey everyone,

    This power supply board is hard to find but there are repair kits available. This board had a blown fuse, FP801S, blown PFC MOSFET, QP802CS and ceramic cap, CP809. I replaced them with parts I already had and tested the rest of the parts that would've come in the repair kit and they were fine. I powered the board up on the bench expecting, in typical Samsung power supply board fashion, to see all my output voltages but, nothing. 0 volts on CNL801, CNM801 and CNT801. The only thing I have is 170vdc on the filter caps. No standby voltage either.

    Anybody...
    Today, 06:20 AM
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