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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: 730
45 730
Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
Topics: 234 Posts: 40,393
234 40,393
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: 3,169 Posts: 32,607
3,169 32,607
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: 4,484 Posts: 74,656
4,484 74,656
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: 3,917 Posts: 43,966
3,917 43,966
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: 6,626 Posts: 36,289
6,626 36,289
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: 498 Posts: 5,431
498 5,431
ay_erdi
by ay_erdi
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: 31,057 Posts: 293,680
31,057 293,680
Sub-Forums:
BIOS Requests ONLY! (12,395/146,562)
Schematic Requests ONLY! (4,601/27,619)
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: 5,294 Posts: 75,562
Last Post: Dell 2709w No power
5,294 75,562
Bob789
by Bob789
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: 27,296 Posts: 372,448
27,296 372,448
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: 4,144 Posts: 64,903
4,144 64,903
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: 297 Posts: 1,636
297 1,636
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: 2,291 Posts: 27,229
2,291 27,229
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: 207 Posts: 3,780
207 3,780
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: 975 Posts: 10,738
975 10,738
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: 1,366 Posts: 19,286
1,366 19,286

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There are currently 348235 users online. 3978 members and 344257 guests.

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

Badcaps Statistics

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Topics: 100,758   Posts: 1,252,090   Members: 481,383   Active Members: 16,170
Welcome to our newest member, Mig Mer.

Latest Topics

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  • omega
    Troubleshooting of redundant F750E-S0 Dell PowerEdge Server
    by omega
    Hello all,
    as a beginner electronics hobbyist, after a few years I would like to place another post on this Forum section, given that I did not succeed in finding any useful advice among the other posts.

    Over the last years, I have been using a PowerEdge Dell Server with two redundant PSUs, namely the 750W F750E-S0 ones (aka 06W2PW). Unfortunately, last summer one of them failed (perhaps owing to an overheating), and the server had for working to take into account the other one only. Of course I opened and tried to troubleshoot the failed PSU, but each cap I tested seemed to...
    02-09-2024, 03:34 PM
  • dariolana
    ATX PSU Cooler Master RS-700-pcaa-e3 shutting off after 5 seconds
    by dariolana
    Got this from my kid with a fault on primary side. Main power supply here is AC 220V. All caps were Ok, testing with 2 series lamp of 70W each, got a bright lamp . Checked main heatsink one by one with my component tester and found one 3 leg buddy MDP18N50 that passed away. Got same replacement after a week, tested, short was gone, now I got 310V on primary.

    Happy as a dog, added one case fan for some load and the fan of the PSU. Tested purple wire, got 5.1V, great!. Shorted green and black, fan spins and after about 5 seconds shuts down. I was able to measure doing several iterations...
    Today, 07:47 PM
  • Sneyk
    DELL PP28L - I need schematic and boardview
    by Sneyk
    Laptop Model: DELL PP28L
    Motherboard: DH3 MB 07212-2M

    I need schematic and boardview. Can You help me solve my problem?

    Best Regards
    Artur
    Today, 04:59 AM
  • badcapjerboard
    Need bios file for Asus ROG Flow X16 GV601RM
    by badcapjerboard
    GV601RM-X16.R93060
    SN: N6NRKD009382256
    Thank you!
    02-22-2024, 03:30 PM
  • dmill89
    Chieftec Dragon LGA1366 Build
    by dmill89
    I recently got ahold of a bright green Chieftec/Chenming "Dragon" case (I've always liked these cases, especially in "oddball" colors) and decoded to throw together a period correct-ish build.

    [URL=filedata/fetch?id=3224020&d=1708993498][ATTACH=JSON]{"alt":"Click image for larger version Name:\tDSC_0779.jpg Views:\t3 Size:\t1.96 MB ID:\t3224020","data-align":"none","data-attachmentid":"3224020","data-size":"medium"}[/ATTACH][/URL]

    [URL=filedata/fetch?id=3224011&d=1708993502][ATTACH=JSON]{"alt":"Click...
    Today, 06:32 PM
  • Bogbog
    Macbook Air 2019 A1932 / 820-01521-A No power
    by Bogbog
    Hello,

    I recently acquired a faulty [B]Macbook Air 2019 A1932[/B] with mainboard[B] 820-01521-A[/B].

    Seller claimed that device just stopped working suddenly.

    Device does not boot or give any signal of life other than the white led on mainboard.
    Using cheap multimeter and microscope I went trough list of semi-random diagnostic steps:

    [B]Voltage measurements[/B]

    [B]Charger in USBC-B (closer to display) everything disconnected.[/B]

    PP20V_USBC_XB_VBUS 20.7v
    PP3V3_UPC_XB_LDO 3.25v
    PP1V8_UPC_XB_LDOA 1.81V...
    Today, 05:04 AM
  • AJ847.63e
    Dell XPS 9510 LA-K411P Liquid damaged
    by AJ847.63e
    Hi All,

    Just wanted to get some advice on a XPS 9510 we have. Unit suddenly decided it no longer wants to turn on. Sometimes pressing the power button, it sits on keyboard lights no picture and boot loops a few times before shutting down. Other times it completely ignores the power button and does nothing. There is no light at the front of the laptop.
    We are getting 20V on all 3 ports so the USB C PD communications working fine. We are getting 12V,3V3 and 5v so it seems like an issue quite late in the power sequence.


    Removed the board and found dust corrosion...
    Today, 06:05 PM
  • chrisnagib
    HP 15-bs112ne bios password
    by chrisnagib
    Please I need the password for HP 15-bs112ne bios (i 69704321)

    I've tried 76662907 but didn't work

    thanks
    Today, 05:49 PM
  • AJ847.63e
    LA-K411P / Dell XPS 9510 schematic Availability?
    by AJ847.63e
    Hi All,

    Does anyone have the schematic for the LA-K411P? The usual sources like Vina and such do not have it, they have the BIOS but not the boardview and schematic. I did find the LA-H331P (which apparently is also for the XPS 9510?) but that seems totally different. That notes a CometLake CPU which AFAIK is 10th gen where my board is 11th gen TigerLake....
    Today, 05:01 PM
  • SMDFlea
    Asus X553MA Rev 2.0 Boardview
    by SMDFlea
    Asus X553MA Rev 2.0 Boardview...
    Today, 05:01 PM

Trending

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  • dariolana
    ATX PSU Cooler Master RS-700-pcaa-e3 shutting off after 5 seconds
    by dariolana
    Got this from my kid with a fault on primary side. Main power supply here is AC 220V. All caps were Ok, testing with 2 series lamp of 70W each, got a bright lamp . Checked main heatsink one by one with my component tester and found one 3 leg buddy MDP18N50 that passed away. Got same replacement after a week, tested, short was gone, now I got 310V on primary.

    Happy as a dog, added one case fan for some load and the fan of the PSU. Tested purple wire, got 5.1V, great!. Shorted green and black, fan spins and after about 5 seconds shuts down. I was able to measure doing several iterations...
    Today, 07:47 PM
  • johnbeton
    Asus X1403ZA rev 2.1 no power short on main
    by johnbeton
    Hello,

    I have an Asus X1403ZA board. Came in with no power or charge light. One screw of the hinges let loose and was dancing around inside the laptop.
    I have 19v coming in the first mosfet, but nothing on the source or gate. (also no voltages on other rails, no shorts on coils)
    The current resistor and source of the second mosfet are short to ground. I have looked for schematic or boardview, but nothing to be found.

    Anyone have tips where to start ?
    Today, 09:30 AM
  • cstout
    Xbox 360 S Failed RGH3 Repair
    by cstout
    Hello all,

    I've just had my first ever run in with a mod failure. Really bummed about it, but hoping to learn more from it. It started as a means for soldering practice and ended with me wondering if it could be restored to function or if something were shorted and now dead.

    This is an Xbox 360 S and the board sticker reads: X865009-001 Rev. D. It's a CORONA V4 (4GB nand, samsung ram).

    When I apply power and press the power button, there is no fan movement or lights and all I get is the power-on beep. If I press the eject button I get the different eject...
    Today, 11:43 AM
  • dmill89
    Chieftec Dragon LGA1366 Build
    by dmill89
    I recently got ahold of a bright green Chieftec/Chenming "Dragon" case (I've always liked these cases, especially in "oddball" colors) and decoded to throw together a period correct-ish build.

    [URL=filedata/fetch?id=3224020&d=1708993498][ATTACH=JSON]{"alt":"Click image for larger version Name:\tDSC_0779.jpg Views:\t3 Size:\t1.96 MB ID:\t3224020","data-align":"none","data-attachmentid":"3224020","data-size":"medium"}[/ATTACH][/URL]

    [URL=filedata/fetch?id=3224011&d=1708993502][ATTACH=JSON]{"alt":"Click...
    Today, 06:32 PM
  • shoe548
    Samsung PSU BN44-00504A PD23A0T_CPN broken
    by shoe548
    I'm trying to diagnose what's up with the PSU on my Samsung TV, model BN44-00504A.

    I can't see any visibly damaged capacitors, and I've had a go at resoldering some joints that looked dry, but no avail. I get no power to the backlight, and no readings from any of the pins except the A5V which is at around 4V (should be 5.3V).

    I've attached some pictures, any help would be much appreciated....
    02-24-2024, 08:55 AM
  • Bogbog
    Macbook Air 2019 A1932 / 820-01521-A No power
    by Bogbog
    Hello,

    I recently acquired a faulty [B]Macbook Air 2019 A1932[/B] with mainboard[B] 820-01521-A[/B].

    Seller claimed that device just stopped working suddenly.

    Device does not boot or give any signal of life other than the white led on mainboard.
    Using cheap multimeter and microscope I went trough list of semi-random diagnostic steps:

    [B]Voltage measurements[/B]

    [B]Charger in USBC-B (closer to display) everything disconnected.[/B]

    PP20V_USBC_XB_VBUS 20.7v
    PP3V3_UPC_XB_LDO 3.25v
    PP1V8_UPC_XB_LDOA 1.81V...
    Today, 05:04 AM
  • AJ847.63e
    Dell XPS 9510 LA-K411P Liquid damaged
    by AJ847.63e
    Hi All,

    Just wanted to get some advice on a XPS 9510 we have. Unit suddenly decided it no longer wants to turn on. Sometimes pressing the power button, it sits on keyboard lights no picture and boot loops a few times before shutting down. Other times it completely ignores the power button and does nothing. There is no light at the front of the laptop.
    We are getting 20V on all 3 ports so the USB C PD communications working fine. We are getting 12V,3V3 and 5v so it seems like an issue quite late in the power sequence.


    Removed the board and found dust corrosion...
    Today, 06:05 PM
  • chrisnagib
    HP 15-bs112ne bios password
    by chrisnagib
    Please I need the password for HP 15-bs112ne bios (i 69704321)

    I've tried 76662907 but didn't work

    thanks
    Today, 05:49 PM
  • stonehenge7x
    I need the electrical diagram ASUS p8h61-m lx3
    by stonehenge7x
    I already found the boardview, but I need the electrical diagram
    Today, 08:32 AM
  • Stephen
    A2338 M1 Not turning on - Repaired slightly but still having issues
    by Stephen
    Repaired a customers computer, had a faulty APL 1097 chip and replaced, all well, not shorted anymore, however I am finally getting 12.28Volts on PPBUS_AON, however it stays at 12.28 and doesn't increase to the normal 12.60 Volts. I read that this is the cause[LIST][*]If the voltage is approximately 12.28-12.35V, it may indicate a communication issue between the SOC and PMICs, or corrupt firmware.[/LIST]​Can someone point to me what would be the next step to fix this. I can feel we are getting close to fixing this board, however this is a data recovery and we need to fix the computer to recover...
    Today, 02:25 PM
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