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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: 733
45 733
Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
Topics: 233 Posts: 43,481
233 43,481
Document & Software Archive
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: 3 Posts: 9
3 9
kasun nirosh
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: 3,204 Posts: 32,833
3,204 32,833
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: 4,522 Posts: 75,018
4,522 75,018
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: 4,024 Posts: 44,847
4,024 44,847
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: 7,027 Posts: 38,605
7,027 38,605
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: 507 Posts: 5,497
507 5,497
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: 32,919 Posts: 317,446
32,919 317,446
Sub-Forums:
BIOS Requests ONLY! (13,118/162,074)
Schematic Requests ONLY! (4,936/29,466)
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: 5,342 Posts: 75,820
5,342 75,820
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: 27,584 Posts: 376,201
27,584 376,201
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: 4,213 Posts: 65,534
4,213 65,534
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: 309 Posts: 1,697
309 1,697
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: 2,363 Posts: 27,710
2,363 27,710
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: 240 Posts: 4,124
240 4,124
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: 1,041 Posts: 11,172
1,041 11,172
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: 1,390 Posts: 19,581
1,390 19,581

What's Going On?

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There are currently 462981 users online. 4523 members and 458458 guests.

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

Badcaps Statistics

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Topics: 103,685   Posts: 1,289,264   Members: 509,839   Active Members: 19,010
Welcome to our newest member, Dan2323.

Latest Topics

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  • Benass
    Surface Laptop 3 Not Detecting SSD - Need Help!
    by Benass
    Hey everyone,
    I'm having an issue with my Surface Laptop 3, and I could really use some help. I've tried everything I can think of, but my laptop just won't detect any new SSDs I install. Here's a rundown of the situation:
    [B]Problem:[/B][LIST][*]My Surface Laptop 3 isn't detecting any new SSDs, including a Sabrent Rocket 2230 256GB NVMe SSD and a Dogfish 256GB M.2 2230 NVMe PCIe Gen 3.0 x4 SSD.[*]Both SSDs work fine in other laptops, so I know they are functional.[*]The laptop does detect a Forsee 64GB SSD from my Steam Deck, and I can successfully install Windows on it.[/LIST][B]What...
    07-22-2024, 11:26 PM
  • redbaron1007
    Klein MM400 resistor identification
    by redbaron1007
    I managed to blow the fuses in my Klein MM400 multimeter and when I replaced them I was still getting a cal and error0 message. I started looking around the board and found one resistor that was testing OL and has a visible burn mark on the top of it so I can't tell what the value is anymore. Its marked as R19 on the board and I included a picture below of what it looks like.

    [ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Screenshot 2024-07-24 17-37-57.png","data-attachmentid":3315715}[/ATTACH]​...
    Today, 03:53 PM
  • JaquesPratt
    Vizio D32f-E1 Powers on, has backlight, won't boot/no logo, no menu or video
    by JaquesPratt
    I have a Vizio D32f-E1 LCD TV that does NOT have a TCON board.

    This TV recently went through some 'death throes' and now won't boot. The first problem that began to manifest was while watching tv, the screen would 'freeze', and the image would dim over a few seconds until it was very dark. HOWEVER, the audio of the show would continue as normal. I could power off the TV for 5-20 seconds, power back on, and the video would be normal. This would occur 1-3 times when the TV was first started, and would not happen again after the TV was 'warmed up'. Not ideal, but this glitch was manageable....
    07-16-2024, 01:04 AM
  • tccyo22
    MacBook Air 13" 2020 A2179 Audio Board
    by tccyo22
    Hey all! I have a MacBook Air 13" 2020 A2179 that won't switch on with the audio board connected so before just replacing it outright I took a quick look and found a cracked cap and short. Removed the cap and the short has gone so want to replace the cap to see if we can use this audio board still.

    TL;DR Anyone know the value of the cap circled in red in the attached picture?...
    Yesterday, 03:36 AM
  • howardc64
    MBP A1989 Touch Bar sometime sluggish touch response
    by howardc64
    Had flickering touch bar display. Replaced. Now have an intermittent touch reponsiveness. It generally works but sometimes a press would not respond and need to touch again... sometimes more than 1-2x. Generally happens when trying to go faster on the touch bar and seem more common in certain regions on the bar.

    Closer inspection reveal L5100 (touch sensor power rail coil) had overheated in the past. Perhaps it can't supply voltage or current properly. Don't have component available so thinking just replace with 0.1mm wire. Touchbar works now but touchbar just have some sluggishness...
    Today, 01:42 PM
  • Unluckyfett
    Boss DD-3 (b) Problem
    by Unluckyfett
    Bypass works, direct out works. Delay signal is not right. ​​​​​Clock seems to be working. I replaced all 10uf electrolytics just because. No change. Based on sound and experience, should I be looking at the AD part or the DA part? I found a breakdown of how the microcontroller samples 12bit audio, I have a scope, I plan on doing more probing, just bothering me as I sit at home with it on my bench at work waiting to be fixed. If I'm reading correctly pin 7 on IC5 should be ≈ input signal. And pin 7 on IC8 should be delayed waveform? So if I have clean delayed waveform on IC8, the problem...
    Yesterday, 04:33 PM
  • CHIZZ Maxx
    Bios for Biostar A880GU3
    by CHIZZ Maxx
    Can i request a Bios for Biostar A880GU3 because in the site the link is not clickable. I need to flash my bios Winbond W25Qbvig. Thank u so much
    Today, 03:10 PM
  • gurj1979
    Ubiquiti firmware help. US-8-150W POE
    by gurj1979
    Hi guys.

    I've got a Ubiquiti US-8-150W POE switch which has issues with updating the firmware.
    Turned out to be a bad EEPROM chip. It would read the firmware and work as normal, but failed to write new firmware to it.

    So I took off the chip and read on EEPROM and saved it. Wrote to old chip and failed to write
    Got New chip and writes good.

    THE PROBLEM...
    It fails to fully load the firmware, POE lights fail to work during g firmware test during load. I'm suspecting bad EEPROM Read.

    Does anyone have a Good Firmware I can have?...
    07-22-2024, 05:13 PM
  • vpower
    Asus F555L dead no power
    by vpower
    Hi, I have this Asus F555L that suddenly died. No charging led when connected to a working charger. Motherboard is X555LD rev. 3.3. I already tested the input voltage and all looks good, 19v is present. Any hint? I'm also looking for schematics and boardview. Thanks in advance....
    Today, 12:39 PM
  • johnbeton
    Microsoft Surface Pro 4 1724 no power
    by johnbeton
    Hello,

    This tablet has no power, no visual signs of corrosion or burned components.
    I notice V_ALWAY_ON_IN on PD5501 and PD5506 is 12V.
    But VDD_BATA_PACK on PD5501 is 2.05V when the charger is plugged in, after a little over 1 minute VDD_BATA_PACK goes up to 6.16V
    FANG_PWR_F stays 0V.
    +3P3VSB_REG is only 1.98V
    +5VSB_REG is 0V

    I cannot find shorted coils or coils with low resistance to ground except for the ones close to the PCH/CPU.

    Link to boardview and schematics:
    [url]https://www.badcaps.net/forum/troubleshooting-ha...
    Today, 01:48 PM

Trending

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  • vpower
    Asus F555L dead no power
    by vpower
    Hi, I have this Asus F555L that suddenly died. No charging led when connected to a working charger. Motherboard is X555LD rev. 3.3. I already tested the input voltage and all looks good, 19v is present. Any hint? I'm also looking for schematics and boardview. Thanks in advance....
    Today, 12:39 PM
  • redbaron1007
    Klein MM400 resistor identification
    by redbaron1007
    I managed to blow the fuses in my Klein MM400 multimeter and when I replaced them I was still getting a cal and error0 message. I started looking around the board and found one resistor that was testing OL and has a visible burn mark on the top of it so I can't tell what the value is anymore. Its marked as R19 on the board and I included a picture below of what it looks like.

    [ATTACH=JSON]{"data-align":"none","data-size":"full","title":"Screenshot 2024-07-24 17-37-57.png","data-attachmentid":3315715}[/ATTACH]​...
    Today, 03:53 PM
  • coffeebreath
    Acer A515-51 - C5V01 LA-E891P Rev 1c
    by coffeebreath
    laptop lights wont turn on, wont power on. When plugged in I get 0.4v-0.8v directly from the DC jack plug on the motherboard. 19v from the charger.

    Thank you.
    Yesterday, 02:30 PM
  • johnbeton
    Microsoft Surface Pro 4 1724 no power
    by johnbeton
    Hello,

    This tablet has no power, no visual signs of corrosion or burned components.
    I notice V_ALWAY_ON_IN on PD5501 and PD5506 is 12V.
    But VDD_BATA_PACK on PD5501 is 2.05V when the charger is plugged in, after a little over 1 minute VDD_BATA_PACK goes up to 6.16V
    FANG_PWR_F stays 0V.
    +3P3VSB_REG is only 1.98V
    +5VSB_REG is 0V

    I cannot find shorted coils or coils with low resistance to ground except for the ones close to the PCH/CPU.

    Link to boardview and schematics:
    [url]https://www.badcaps.net/forum/troubleshooting-ha...
    Today, 01:48 PM
  • howardc64
    MBP A1989 Touch Bar sometime sluggish touch response
    by howardc64
    Had flickering touch bar display. Replaced. Now have an intermittent touch reponsiveness. It generally works but sometimes a press would not respond and need to touch again... sometimes more than 1-2x. Generally happens when trying to go faster on the touch bar and seem more common in certain regions on the bar.

    Closer inspection reveal L5100 (touch sensor power rail coil) had overheated in the past. Perhaps it can't supply voltage or current properly. Don't have component available so thinking just replace with 0.1mm wire. Touchbar works now but touchbar just have some sluggishness...
    Today, 01:42 PM
  • DATATECH85
    Macbook Pro A1990 - 820-01041 Stuck at 5V / 0.02A
    by DATATECH85
    [FONT=Calibri]Hello,[/FONT]
    [FONT=Calibri]I am currently working on a Macbook Pro [B]A1990 [/B](motherboard [B]820-01041[/B]) which is not charging.[/FONT]
    [FONT=Calibri]The Macbook consumes 5V and 0.019A at USB-C. There seems to be a partial [B]short-circuit[/B] on the [B]PPBUS_G3H [/B]rail as I have 0V on this rail.[/FONT]

    [FONT=Calibri]I've physically separated (by removing F7000 and F7001) PPBUS_G3H and the ISL9240 charging chip to see which side the short is coming from. Removing these fuses gives me 12.6V at the output of the ISL chip (PPVBAT_G3H_CHGR_REG).[/FONT]
    ...
    Today, 06:34 AM
  • CHIZZ Maxx
    Bios for Biostar A880GU3
    by CHIZZ Maxx
    Can i request a Bios for Biostar A880GU3 because in the site the link is not clickable. I need to flash my bios Winbond W25Qbvig. Thank u so much
    Today, 03:10 PM
  • pcmacdoctors
    MacBook Pro 2020 A2251 (820-01949) No Backlight
    by pcmacdoctors
    Hello, I have an A2251 MacBook Pro logic board (820-01949) with an unknown history and no signs of liquid damage. I'm trying to make use of it. The computer boots up and works normally, except there is no backlight on the screen and the camera is not working. An external display works fine.

    I swapped the display and display cable with known working ones, but there was no change.

    Upon inspecting the board, I found that L8504 was blown. I replaced it and the adjacent components (C8504, CC727). Now the camera works. I also replaced C8440 near U8400, as it looked like it...
    Today, 11:12 AM
  • throwaway32y
    Clear Redmi Notebook Pro 15 BIOS password!!!
    by throwaway32y
    Hey! I disabled BIOS secure boot a while back ago when I tried to dual boot my system, then after that I set a blank password. Now the BIOS is asking me for a password which I set is as blank and its not accepting it!. Looking at other thread managed to dump BIOS and using hex codes, tried to find out the system supervisor password, but can't decode it​! Anyone help me decoding this please. Thanks!...
    Today, 03:21 AM
  • adelmotaghin
    HP PAVILION PLUS 14-eh1032TU
    by adelmotaghin
    need bios
    PCB Duckhorn 1.1 rpl uma 10l
    223077-1
    448.0RB22.0011
    attach read file but i cant region 16.1 if someone can do it plz try...
    Today, 10:40 AM
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