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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: 726
Last Post: Capacitor ESR
45 726
japlytic
Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
Topics: 235 Posts: 40,251
235 40,251
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: 3,170 Posts: 32,595
3,170 32,595
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: 4,482 Posts: 74,645
4,482 74,645
stj
by stj
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: 3,913 Posts: 43,944
3,913 43,944
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: 6,607 Posts: 36,193
6,607 36,193
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: 30,988 Posts: 292,774
Last Post: Think pad T14 gen 3
30,988 292,774
-=Leroy=-
Sub-Forums:
BIOS Requests ONLY! (12,367/145,831)
Schematic Requests ONLY! (4,592/27,547)
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: 5,293 Posts: 75,555
5,293 75,555
lotas
by lotas
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: 27,288 Posts: 372,271
27,288 372,271
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: 4,140 Posts: 64,876
4,140 64,876
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: 2,288 Posts: 27,213
2,288 27,213
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: 3,779
207 3,779
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: 971 Posts: 10,722
971 10,722
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: 1,365 Posts: 19,281
1,365 19,281
Ken123
by Ken123

What's Going On?

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There are currently 287836 users online. 4307 members and 283529 guests.

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

Badcaps Statistics

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Topics: 100,645   Posts: 1,250,625   Members: 480,367   Active Members: 15,956
Welcome to our newest member, Kwee Iyan To.

Latest Topics

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  • x2006nzl
    Rca rnsmu6540 65 4k led tv
    by x2006nzl
    Hello this tv the led lights stopped coming on tv works just no lights if I take flashlight to it I can see screen and it has sound. Thanks assuming I'm looking at a bad led stopping the circuit or?
    Yesterday, 07:11 PM
  • mmartell
    How to troubleshoot dead power brick
    by mmartell
    I have an adjustable power supply having a selectable voltage from 15v to 24v. It was sold as a universal soundbar power supply.

    It has been outdoors in the elements powering a set of outdoor bluetooth rock speakers until recently when it stopped working. (ya ya I know...)

    I opened it and it looks like there was some liquid ingress but I can't find any shorted silicon and the fuse is not blown. I measure about 160v dc after the bridge rectifier but nothing at the main cap. I suspect the power ic is not running. Obviously there is no voltage on the secondary either....
    02-05-2024, 06:45 PM
  • bamboofuto
    820-00840 PP3V3_S5 shorted
    by bamboofuto
    Hi all,

    i am working on macbook pro A1708 820-00840 water damage around USB iC U3200 and PMIC U7800. took out U3200 and U7800 but still has shorted on PP3V3_S5.
    i tried to inject 1V and 3.5A but can not detect the heat.

    any suggestion will be appreciated.
    Today, 01:18 AM
  • eastcoastcomputing
    Please help Asus ROG G713QY-K4005T (SN: MANRKD03332840C), motherboard ref: G713-6050A3254002-MB-A01 (A1) Bios
    by eastcoastcomputing
    Hi there,
    I have an Asus G713QY that won't boot. The machine fire up to a black screen, no post but everything seems to check out on the board. I believe the motherboard needs the bios reloaded but I can't find the bios file. I've looked on the [URL="https://rog.asus.com/laptops/rog-strix/2021-rog-strix-g17-advantage-edition-series/helpdesk_bios/"]Asus website[/URL] but what is available for download is the .exe to run in windows (which won't help). I've tried to unzip it but can't see the bios file that I need. Can anyone share the bios file for an Asus ROG G713QY-K4005T (SN:...
    Today, 04:32 AM
  • PedroGG90
    siemens sitop 24 vdc Smps outputs higher voltage 33 vdc
    by PedroGG90
    Hi everybody.

    I have two 3 phase 400 vac smps siemens sitop 24 vdc giving red light overload and higher output 33 vdc.

    The switching is controlled from micro controller.

    Is it micro controller or transformer ? Or else pls ,?...
    Badcaps Electronics Repair Forum & Schematic Search
    02-09-2024, 05:20 AM
  • chth96
    How can I test coil whether it is really broken or not?
    by chth96
    I have old game console which have connected to 220v outlet by previous owner and It is not able to turn on.

    I checked continuity of fuse in PSU unit with a multimeter which is shown in the below picture with a orange circle around it, and It seems that fuse became open circuit.
    [ATTACH=JSON]{"alt":"Click image for larger version Name:\tis-it-possbile-to-replace-171-7962a-x1-psu-with-171-7874a-v0-fpbctyvxojjc1-ezgif.com-webp-to-jpg-converter.jpg Views:\t0 Size:\t2.30 MB ID:\t3219795","data-align":"none","data-attachmentid":"3219795","data-size":"full","title":"is-it-possbile-to-replace-171-7962a-x1-psu-with-171-7874a-v0-fpbctyvxojjc1-ezgif.com-webp-to-jpg-converter.jpg"}[/ATTACH]...
    Yesterday, 01:07 AM
  • BigTroll
    The last AM4 upgrade
    by BigTroll
    Back in 2017 for the launch of Ryzen I bought an Asrock x370 Killer SLI/AC and Ryzen 1700 motherboard combo from newegg, it was a good deal but I didn't think it would last me so long. I originally had 16gb ram a EVGA GTX 970 latter the 970 was replaced with a EVGA GTX 1080 and finally a Nvidia Geforce 3080 Founders Edition. the CPU went from a 1700 to 2700x, 3900x and now finally to a 5950x and I got 32gb ram. I still cant believe how long AM4 lasted and the 5950x was $348 with tax included from antonline using the 20% presidents day coupon. I got a ID cooling 360 water cooler on her and shes...
    Yesterday, 02:52 PM
  • Sintez
    bios dell optiplex micro 3060
    by Sintez
    Hello!
    dell optiplex micro 3060
    The IPCFL-CG platform, after replacing the SR405 chipset, turns on and is fully operational only after resetting the bios battery.
    If you turn it off, it blinks twice or once in orange and does not turn on, you need to reset the battery again..
    Help me clear the region in the bios firmware, please.
    Service Tag 5XGNNR2
    Express Service Tag 12907273214
    [ATTACH=JSON]{"data-align":"none","data-size":"full","title":"dataurl477089.png","data-attachmentid":32...
    Today, 04:49 AM
  • jackster
    800W PC PSU by Corsair with fluctuating 5V
    by jackster
    So I have an old 800W ATX PSU which works otherwise but the 5V rail fluctuates between 4.5V and 5.1V [B]even with no load. [/B]Under load the fluctuation seems to be the same, at least with one mechanical hard drive connected.

    3.3V and 12V are fine.

    All electrolytic caps look ok visually, but should one still start the repair/diagnosis by replacing all relevant caps?So I have an old 800W ATX PSU which works otherwise but the 5V rail fluctuates between 4.5V and 5.1V [B]even with no load. [/B]Under load the fluctuation seems to be the same, at least with one mechanical
    01-24-2024, 07:08 AM
  • Sintez
    Resistor value - Motherboard dumbledo - 6050a2985501
    by Sintez
    Hello!
    Help me determine the resistor value
    laptop hp 17-ca
    Motherboard dumbledo - 6050a2985501

    Thank you
    [ATTACH=JSON]{"data-align":"none","data-size":"full","title":"dataurl059919.png","data-attachmentid":3220535}[/ATTACH]​

    [ATTACH=JSON]{"data-align":"none","data-size":"full","title":"dataurl961541.png","data-attachmentid":3220534}[/ATTACH]Hello!
    Help me determine the resistor value
    laptop hp...
    Today, 04:27 AM

Trending

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  • bamboofuto
    820-00840 PP3V3_S5 shorted
    by bamboofuto
    Hi all,

    i am working on macbook pro A1708 820-00840 water damage around USB iC U3200 and PMIC U7800. took out U3200 and U7800 but still has shorted on PP3V3_S5.
    i tried to inject 1V and 3.5A but can not detect the heat.

    any suggestion will be appreciated.
    Today, 01:18 AM
  • eastcoastcomputing
    Please help Asus ROG G713QY-K4005T (SN: MANRKD03332840C), motherboard ref: G713-6050A3254002-MB-A01 (A1) Bios
    by eastcoastcomputing
    Hi there,
    I have an Asus G713QY that won't boot. The machine fire up to a black screen, no post but everything seems to check out on the board. I believe the motherboard needs the bios reloaded but I can't find the bios file. I've looked on the [URL="https://rog.asus.com/laptops/rog-strix/2021-rog-strix-g17-advantage-edition-series/helpdesk_bios/"]Asus website[/URL] but what is available for download is the .exe to run in windows (which won't help). I've tried to unzip it but can't see the bios file that I need. Can anyone share the bios file for an Asus ROG G713QY-K4005T (SN:...
    Today, 04:32 AM
  • odie34
    Sony OLED XR-77A80J - 5 Flashes But Turn On After Hard Reset
    by odie34
    I am a hobbyist (not a professional) so please be gentle...

    I recently received an XR-77A80J that wouldn't turn on. (Repeating 5 flashes when plugged in.)

    I did a hard reset by holding the power button for about 30 seconds until the set powered down. I then tried to turn it on and it powered up, bringing me to the setup screen. There's not a lot of detail on the setup screen but the picture didn't have any distortions, so at least a cursory examination suggests no physical damage to the screen. The set appeared to be working normally, but it shut down after about 15 seconds,...
    02-18-2024, 09:11 AM
  • Sintez
    bios dell optiplex micro 3060
    by Sintez
    Hello!
    dell optiplex micro 3060
    The IPCFL-CG platform, after replacing the SR405 chipset, turns on and is fully operational only after resetting the bios battery.
    If you turn it off, it blinks twice or once in orange and does not turn on, you need to reset the battery again..
    Help me clear the region in the bios firmware, please.
    Service Tag 5XGNNR2
    Express Service Tag 12907273214
    [ATTACH=JSON]{"data-align":"none","data-size":"full","title":"dataurl477089.png","data-attachmentid":32...
    Today, 04:49 AM
  • Sintez
    Resistor value - Motherboard dumbledo - 6050a2985501
    by Sintez
    Hello!
    Help me determine the resistor value
    laptop hp 17-ca
    Motherboard dumbledo - 6050a2985501

    Thank you
    [ATTACH=JSON]{"data-align":"none","data-size":"full","title":"dataurl059919.png","data-attachmentid":3220535}[/ATTACH]​

    [ATTACH=JSON]{"data-align":"none","data-size":"full","title":"dataurl961541.png","data-attachmentid":3220534}[/ATTACH]Hello!
    Help me determine the resistor value
    laptop hp...
    Today, 04:27 AM
  • sircastor
    Macbook Air A1466 No light on charger
    by sircastor
    Hi everyone,

    I have a MacBook Air 2015 (820-00165-02) that had some liquid damage. It was working for a while only on Adapter power, but that stopped working. Thunderbolt (external display) did not work. There was a bit of corrosion on the board, and I've cleaned that up. The adapter light does not turn on when I plug it in.

    PP3v42_G3H: 3.42V
    PPBUS_G3H: 0V
    PPDCIN_G3H: 16.4V
    PPDCIN_G3H_INRUSH: 0V

    A lot of this is new to me, but following the schematic, I think that Q7180 is not producing the PPDCIN_G3H_INRUSH voltage, which in turn drives...
    Yesterday, 02:42 PM
  • x2006nzl
    Rca rnsmu6540 65 4k led tv
    by x2006nzl
    Hello this tv the led lights stopped coming on tv works just no lights if I take flashlight to it I can see screen and it has sound. Thanks assuming I'm looking at a bad led stopping the circuit or?
    Yesterday, 07:11 PM
  • german_20ar
    I have a Lenovo Thinkpad E420 and I have the following problem, let's see if someone can help me or help me, thank you
    by german_20ar
    The Notebook turns on correctly as long as it has not been used for the last 20 Minutes. While it is on everything works correctly, but if I turn it off and want to turn it on again it does not turn on. I have to wait more or less 20 minutes and then it turns on again. Does anyone know where to start checking to see where the problem is? Thank you so much!

    Espa
    Yesterday, 08:58 PM
  • x_orange90_x
    Samsung UN50KU6300F constant reboot, bad backlights?
    by x_orange90_x
    This TV is in a constant reboot where the screen very dimly lights up for about 2 seconds and says SMART TV. I checked the power supply and visually all components look good. I unplugged the main board to see if the backlights would come on but they do not. I also tried my LED tester on the backlight plug and didn't get anything. I know some Samsungs will not light off a single led is out regardless of using a tester, so I'm thinking they are bad. I found a whole set for about $25 which isn't bad, but before I buy them is like to know if they would indeed cause a constant reboot like this tv is...
    02-09-2024, 08:41 PM
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