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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: 40,270
235 40,270
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: 74,648
4,482 74,648
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: 43,946
3,913 43,946
OddJohnny
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: 6,608 Posts: 36,221
6,608 36,221
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: 5,432
498 5,432
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: 30,995 Posts: 292,789
30,995 292,789
Sub-Forums:
BIOS Requests ONLY! (12,372/146,013)
Schematic Requests ONLY! (4,592/27,564)
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: 27,289 Posts: 372,311
27,289 372,311
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: 64,880
4,140 64,880
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: 2,289 Posts: 27,216
Last Post: Marshall Emberton
2,289 27,216
Phil916
by Phil916
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: 10,723
971 10,723
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 290531 users online. 4237 members and 286294 guests.

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

Badcaps Statistics

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Topics: 100,656   Posts: 1,250,744   Members: 480,539   Active Members: 16,030
Welcome to our newest member, Seba80.

Latest Topics

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  • jon pike
    Reply to Microsoft Surface 7 + UEFI lock
    by jon pike
    hi all.
    i have a locked sp7 with an i5 by bios. tough part is the system was wiped prior or something so i have no bootable config to get windows running. However i can power up get the no boot config then presented with password i do not have.
    on the other hand I can use a system recovery drive and boot to the recovery environment, unfortunately the recover from a drive feature fails at 99% and im left with cmd, system image, as my only options. I can access regedit, notepad and the SDD but i do not know where to go from there. I continually get the password screen and i cannot remove...
    Today, 03:57 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...
    02-20-2024, 02:52 PM
  • ukpicasdo
    Lenovo Legion 5 15arh05 NM-D281 REV1.0 mobo
    by ukpicasdo
    State: when power button pressed white power button led lights up for 10sec the off for 8sec and then back on for 10 and that is happening in the loop. When charger connected charging light is on battery is charging. Checked with mmeeter. Done some basic fault finding but no luck. I've reprogrammed bios. No good. I want to start from scratch. Please guide me what to measure first cause I'm lost now. Thanks.
    02-15-2024, 03:27 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.
    Yesterday, 01:18 AM
  • koinoyokan
    Apple MacBook Pro 13 2020 Intel silicone 820-01949-A A2251 no sound
    by koinoyokan
    Hi guys, I hope you can help me. I'm trying to identify an audio chip on this device, since NVRAM reset, SMC reset and replacing speakers yield no results, I'm pretty sure it's the chip. The sound comes back briefly after [I]sudo killall coreaudiod [/I]but it's muffled, as if the speakers are blown, which they are not. Same effect with SMC reset -- the sound comes back briefly, sometimes the chime can be heard, sometimes it's absent.

    I have a schematic for the Open Board View, but I can't seem to locate what is usually an audio - U6200 or U6201, what am I doing wrong?Hi guys, I hope
    02-17-2024, 08:52 PM
  • alirafee
    BIOS dell precision 5530
    by alirafee
    dell precision 5530 la-g341p
    need clear bios
    thank you all!
    vga not detect​
    service tag 5XQZVT2...
    Today, 12:47 AM
  • felix27
    Nitro AN515-55 not booting
    by felix27
    Hi,
    i am currently trying to fix an ACER Nitro AN515-55. Originally the 19V was shorted by the VCCGT Powerstage. After removing it the short was gone. I tried replacing the mosfet and also booting the system without it and a Monitor connected to HDMI. In both cases the system lights up, cpu, gpu and pch get warm but there is nothing on the screen. Is it possible that the short took out the igpu and the cpu at the same time or is the system just unable to boot without an functioning igpu. The system also didn't boot with a functioning mosfet for the igpu rail. Resistance on VCCGT is 4 ohm,...
    02-20-2024, 04:53 PM
  • 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
  • Francisco.s
    DAG7ELMBAC0 motherboard windows crashes.
    by Francisco.s
    Hello everyone, have a HP laptop with DAG7ELMBAC0 motherboard that crashes when booting windows.
    With a pen-drive with Linux or hiren's is the same, only with ms-dos programs run without problems.
    It passes all ms-dos memory tests, and also all Pccheck 6.1 tests. (some tests not run properly because are not designed for new CPU)
    Same with other bios and other ddr4 module.

    I have disconnected the vcore rails from GPU in order to test with only internal Intel graphics, to no avail.

    In the past I've had the same problem, but due to corrosion near kbc chip,...
    02-17-2024, 02:15 PM
  • DaniK
    Acer Aspire E5-574-52RH - black screen
    by DaniK
    Hi everyone,
    I have this strange behaviour with Acer Aspire E5-574-52RH, i5 6200U, intel graphics, DA0ZRWMB6G0 Rev G, model ZRW.
    Laptop came in for a SSD upgrade, took everything apart to install the SSD.
    Everything started after modifying BIOS settings to boot UEFI instead of Legacy.
    Laptop works fine, i installed windows 10 and drivers/updates, everything works ok(when it works)
    The black screen problem is random, maybe 5 out 10 times, laptop remains with the black screen, no image

    Symptoms are:
    - random black screen after displaying Acer logo...
    Yesterday, 06:27 AM

Trending

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  • 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
  • alirafee
    BIOS dell precision 5530
    by alirafee
    dell precision 5530 la-g341p
    need clear bios
    thank you all!
    vga not detect​
    service tag 5XQZVT2...
    Today, 12:47 AM
  • 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.
    Yesterday, 01:18 AM
  • 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
  • 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?
    02-20-2024, 07:11 PM
  • DaniK
    Acer Aspire E5-574-52RH - black screen
    by DaniK
    Hi everyone,
    I have this strange behaviour with Acer Aspire E5-574-52RH, i5 6200U, intel graphics, DA0ZRWMB6G0 Rev G, model ZRW.
    Laptop came in for a SSD upgrade, took everything apart to install the SSD.
    Everything started after modifying BIOS settings to boot UEFI instead of Legacy.
    Laptop works fine, i installed windows 10 and drivers/updates, everything works ok(when it works)
    The black screen problem is random, maybe 5 out 10 times, laptop remains with the black screen, no image

    Symptoms are:
    - random black screen after displaying Acer logo...
    Yesterday, 06:27 AM
  • mnciks11
    Dell Latitude 5400 bios request
    by mnciks11
    Hello guys I was working on the dell latitude 5400 i5 8th Gen laptop
    I need a working know bios for this machine please
    Or help with the clean of the old backup file below, the laptop went off after updates...
    05-16-2022, 01:32 AM
  • Francisco.s
    DAG7ELMBAC0 motherboard windows crashes.
    by Francisco.s
    Hello everyone, have a HP laptop with DAG7ELMBAC0 motherboard that crashes when booting windows.
    With a pen-drive with Linux or hiren's is the same, only with ms-dos programs run without problems.
    It passes all ms-dos memory tests, and also all Pccheck 6.1 tests. (some tests not run properly because are not designed for new CPU)
    Same with other bios and other ddr4 module.

    I have disconnected the vcore rails from GPU in order to test with only internal Intel graphics, to no avail.

    In the past I've had the same problem, but due to corrosion near kbc chip,...
    02-17-2024, 02:15 PM
  • riparo
    Panasonic Oled 55EZ950E, no picture, red led blinking every 4 sec
    by riparo
    Hi everyone, I have a Panasonic OLED TV model 55EZ950E, as soon as I turn it on I don't have any image the LED goes from green to red LED blinking every 4 sec, I found the service manual suggests checking OLED PANEL, PB BOARD, T-CON connectors but it seems like everything ok, I didn't find any burns under the pb board
    I attach a link to download the service manual, thank you for anyone who can help me
    [url]https://tel-spb.ru/download/?brand=PANASONIC&file=Panasonic_TX-55EZ950E_LA73.rar​[/url]https://Hi everyone, I have a Panaso... it on I don't
    01-11-2024, 12:35 PM
  • 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...
    02-20-2024, 02:42 PM
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