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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: 237 Posts: 47,872
237 47,872
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: 2,340
2,146 2,340
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: 3,239 Posts: 33,081
3,239 33,081
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: 4,562 Posts: 75,295
4,562 75,295
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: 4,168 Posts: 45,933
4,168 45,933
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: 7,563 Posts: 42,261
Last Post: HP ProOne 400 G4
7,563 42,261
WyasW
by WyasW
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: 5,606
526 5,606
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: 35,542 Posts: 354,930
35,542 354,930
tuantu01
Sub-Forums:
BIOS Requests ONLY! (14,134/189,721)
Schematic Requests ONLY! (5,371/31,880)
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: 5,406 Posts: 76,258
5,406 76,258
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: 27,983 Posts: 382,103
27,983 382,103
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: 4,281 Posts: 66,071
4,281 66,071
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: 334 Posts: 1,785
334 1,785
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: 2,472 Posts: 28,380
2,472 28,380
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: 295 Posts: 4,671
295 4,671
ajshoe
by ajshoe
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: 1,115 Posts: 11,665
1,115 11,665
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: 1,406 Posts: 19,809
1,406 19,809
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: 101,078 Posts: 101,086
101,078 101,086
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: 8,713 Posts: 8,717
8,713 8,717

What's Going On?

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There are currently 752265 users online. 5541 members and 746724 guests.

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

Badcaps Statistics

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Topics: 218,521   Posts: 1,450,178   Members: 554,263   Active Members: 24,182
Welcome to our newest member, fpower.

Latest Topics

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  • handsworth
    TCL 55S425 backlights wont turn off
    by handsworth
    Need some advice here. So I picked up this 55" off the curb and diagnosed it with bad leds. I opened it up, tested the 4 strips with the tester and yes, 2 strips had burnt leds. I ordered a new set and installed them. But before putting tv back together, I always test tv to make sure I did it correctly. Tv lights up and works, however when turning tv off, the top set of leds remain on. Swapped power supply with identical one and same results. Swapped MB with identical one, same results. So I put the tv back together and reset MB. Tv works fine like new, but leds remain on when powering...
    Yesterday, 09:45 PM
  • tuantu01
    IIYama NH55HP No Audio
    by tuantu01
    I have iiyama brand computer. Modem NH55HP currently does not recognize the sound card. Looking forward to support in bios. Sincerely thank you​ [ATTACH]n3571285[/ATTACH] [ATTACH=JSON]{"data-align":"none","data-size":"full","data-attachmentid":3571286}[/ATTACH]I have iiyama brand computer. Modem NH55HP currently does not recognize the sound card. Looking forward to support in bios. Sincerely thank you​ [ATTACH]n3571285[/ATTACH] [ATTACH=JSON]{"data-align":"none","data-size":"full","data-attachmenti...
    Yesterday, 09:16 PM
  • doivaythoiem
    LENOVO THINKPAD P1 Gen 4 - LCH-1 E-GPU MB 213015-1 FIX BIOS
    by doivaythoiem
    Any help me
    P1 Gen 4 Laptop (ThinkPad) - LCH-1 E-GPU MB 213015-1
    SN: PW-03EZ7T

    VGA error and after Switchable Graphics the screen is black and cannot output to external monitor.

    Original bios...
    Yesterday, 11:44 PM
  • tuantu01
    MSI GF63 Thin 11UC MS-16R61 Ver 2.2 Not Detech M2,SSD Help Me
    by tuantu01
    I have an MSI computer. Bios currently does not recognize M2 hard drives and SSDs. Please Fix It For Me. Sincerely thank you...
    Yesterday, 09:08 PM
  • Victor19941511
    Bios Asus k53ta
    by Victor19941511
    Помогите пожалуйста,нужен bios Asus k53ta
    Today, 01:02 AM
  • AJ847.63e
    HP Spectre x360 -DA0X36MBAE0 wont turn on after battery change - Chip identification required
    by AJ847.63e
    i all,

    Cab anyone identify this chip? Pics attached. It's marked L8=6E 74L.

    History: laptop came from a e-cycler. Dropped off a few laptops wanting to get rid of them so he asked if we wanted them, apparently he tried swapping the battery on this one and acidentally broke the tip of the battery connector and plugged the battery in upside down.
    All readings on the battery pin seem normal though (comparing to a working same model board).
    Connecting the charger you can see the above mentioned chip pulsing so it looks like its going into protection mode, but checking...
    Yesterday, 11:32 PM
  • kotel studios
    Excellent power model IT ATX 300w - shuts down after a split second
    by kotel studios
    Hi,

    Recently I gave a shot at recapping this Excellent power IT ATX 300 lc clone doohickey PSU. After I replaced all bulging caps and the 47uF 50v in 5vsb I turned it on. 5vsb and ps_on are spot on. So I shorted the ps_on and it dies after a split second. 5vsb still is generating, all other lines also generate voltage for a while but they all discharge so fast.

    Now I am sure this isn't a problem with the 5vsb damaging the PWM IC or BJT circuit, but I have no idea where to go next. Maybe replacing all the smaller caps?
    02-04-2025, 12:56 AM
  • Prabuth
    Dell Vostro 15 3510 -- gdm51 la-l242p rev 1.0 a00
    by Prabuth
    Dell Vostro 15 3510 -- [SIZE=14px][U][B]gdm51 la-l242p rev 1.0 a00[/B][/U][/SIZE] [COLOR=#e74c3c]Need Schematic Please.[/COLOR]Dell Vostro 15 3510 -- [SIZE=14px][U][B]gdm51 la-l242p rev 1.0 a00[/B][/U][/SIZE] [COLOR=#e74c3c]Need Schematic Please.[/COLOR]Dell Vostro 15 3510 -- [SIZE=14px][U][B]gdm51 la-l242p rev 1.0 a00[/B][/U][/SIZE] [COLOR=#e74c3c]Need Schematic Please.[/COLOR]Dell Vostro 15 3510 -- [SIZE=14px][U][B]gdm51 la-l242p rev 1.0 a00[/B][/U][/SIZE] [COLOR=#e74c3c]Need Schematic Please.[/COLOR]
    Yesterday, 02:54 AM
  • Michael Angelo Dorio
    BIOS for ASUS TUF Gaming A15 (2023)
    by Michael Angelo Dorio
    Do you guys have the bios for a laptop model: ASUS TUF Gaming A15 (2023) - FA507NU ?
    I have an issue with BIOS corruption or BIOS password bug
    Yesterday, 07:19 AM
  • pikote
    asus tuf gaming b460m-plus wifi r1.01
    by pikote
    Hello everyone, the first thing is to thank the work you are doing for all, I need your help to fix, I am looking for the scheme of the board asus tuf gaming b460m-plus wifi r1.01, thank you all
    Yesterday, 09:49 PM

Trending

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  • applejuice95
    MacBook - 2021 A2485 - 16 inch - 820-02100-A - No Boot / No Power
    by applejuice95
    Hi there, currently working on 820-02100-A logic board - No boot Chime, no Power on. - Very Minor Liquid Exposure - All cleaned with IPA , did a partial ultrasonic as well . Clean and dry.

    MagSafe - Orange light cycles off then back on every 5-7 seconds
    USB-C Ports - All 3 get to 19.9V/20V - .5A then Cycle ever 5 seconds.

    All 4 CD3218 Chips have been checked at their LCD-CORE 3V5 and 1V5 lines at the local Capacitor, all are getting 1.5 and 3.5V But each have a different Voltage drop when the board cycles.. See below

    (PP1V5_UPC_LDO_CORE) - AT EACH CD321...
    Yesterday, 09:45 AM
  • AJ847.63e
    HP Spectre x360 -DA0X36MBAE0 wont turn on after battery change - Chip identification required
    by AJ847.63e
    i all,

    Cab anyone identify this chip? Pics attached. It's marked L8=6E 74L.

    History: laptop came from a e-cycler. Dropped off a few laptops wanting to get rid of them so he asked if we wanted them, apparently he tried swapping the battery on this one and acidentally broke the tip of the battery connector and plugged the battery in upside down.
    All readings on the battery pin seem normal though (comparing to a working same model board).
    Connecting the charger you can see the above mentioned chip pulsing so it looks like its going into protection mode, but checking...
    Yesterday, 11:32 PM
  • tuantu01
    IIYama NH55HP No Audio
    by tuantu01
    I have iiyama brand computer. Modem NH55HP currently does not recognize the sound card. Looking forward to support in bios. Sincerely thank you​ [ATTACH]n3571285[/ATTACH] [ATTACH=JSON]{"data-align":"none","data-size":"full","data-attachmentid":3571286}[/ATTACH]I have iiyama brand computer. Modem NH55HP currently does not recognize the sound card. Looking forward to support in bios. Sincerely thank you​ [ATTACH]n3571285[/ATTACH] [ATTACH=JSON]{"data-align":"none","data-size":"full","data-attachmenti...
    Yesterday, 09:16 PM
  • doivaythoiem
    LENOVO THINKPAD P1 Gen 4 - LCH-1 E-GPU MB 213015-1 FIX BIOS
    by doivaythoiem
    Any help me
    P1 Gen 4 Laptop (ThinkPad) - LCH-1 E-GPU MB 213015-1
    SN: PW-03EZ7T

    VGA error and after Switchable Graphics the screen is black and cannot output to external monitor.

    Original bios...
    Yesterday, 11:44 PM
  • Michael Angelo Dorio
    BIOS for ASUS TUF Gaming A15 (2023)
    by Michael Angelo Dorio
    Do you guys have the bios for a laptop model: ASUS TUF Gaming A15 (2023) - FA507NU ?
    I have an issue with BIOS corruption or BIOS password bug
    Yesterday, 07:19 AM
  • handsworth
    TCL 55S425 backlights wont turn off
    by handsworth
    Need some advice here. So I picked up this 55" off the curb and diagnosed it with bad leds. I opened it up, tested the 4 strips with the tester and yes, 2 strips had burnt leds. I ordered a new set and installed them. But before putting tv back together, I always test tv to make sure I did it correctly. Tv lights up and works, however when turning tv off, the top set of leds remain on. Swapped power supply with identical one and same results. Swapped MB with identical one, same results. So I put the tv back together and reset MB. Tv works fine like new, but leds remain on when powering...
    Yesterday, 09:45 PM
  • tuantu01
    MSI GF63 Thin 11UC MS-16R61 Ver 2.2 Not Detech M2,SSD Help Me
    by tuantu01
    I have an MSI computer. Bios currently does not recognize M2 hard drives and SSDs. Please Fix It For Me. Sincerely thank you...
    Yesterday, 09:08 PM
  • Victor19941511
    Bios Asus k53ta
    by Victor19941511
    Помогите пожалуйста,нужен bios Asus k53ta
    Today, 01:02 AM
  • Teeheeze
    RT809H Programmer Firmware Corrupted
    by Teeheeze
    This is a shot in the dark, but I was just using my RT809H programmer and it got stuck in a certain state so I power cycled it. Now, the device LED just flashes quickly and does not connect to the software. I've tried to update the BIOS of it and it fails. I went so far as to remove the ROM from the programmer itself but it's some weird chip (I believe ATMEL, but I can't find any datasheet on it) so I've been unable to read the BIN from it w/ my other programmer. Chip has ATMLHC4C56BM CN written on it (I think). I'll upload an image. I have the programmer's BIN ready to program it manually. Anyone...
    Yesterday, 04:51 PM
  • phantomEVO
    [help]820-01700 "mistery problem"
    by phantomEVO
    Hi to all, i don't know the real history of this board.

    the technician who gave me this board says: "i don't know the history of this board, it not switch to 20v. i have changed ub300 and ub400, than i've discovered to have short on 5v andi i have changed u7650. still 5v not switching"


    so under microscope i've found

    - shorts on rb246,rb401,rb400

    - u7650 (tps51980b) changed with (tps51980A)

    - j6640 melted (maybe some one has reflowed or changed u3100 or u3200?)

    so i've bouth another identical board anche...
    02-12-2025, 03:58 PM
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