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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: 47,976
237 47,976
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: 2,147 Posts: 2,350
2,147 2,350
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: 57 Posts: 66
57 66
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: 33,084
3,239 33,084
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: 4,565 Posts: 75,312
4,565 75,312
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: 4,172 Posts: 45,943
4,172 45,943
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: 7,583 Posts: 42,378
7,583 42,378
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: 5,610
526 5,610
poster1
by poster1
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: 35,613 Posts: 356,152
35,613 356,152
Sub-Forums:
BIOS Requests ONLY! (14,154/190,478)
Schematic Requests ONLY! (5,382/31,952)
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: 5,409 Posts: 76,274
5,409 76,274
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: 27,991 Posts: 382,205
27,991 382,205
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: 4,288 Posts: 66,122
4,288 66,122
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: 335 Posts: 1,788
Last Post: Epson L3210 DUMP
335 1,788
SMDFlea
by SMDFlea
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: 2,476 Posts: 28,403
2,476 28,403
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: 296 Posts: 4,672
296 4,672
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: 1,119 Posts: 11,688
1,119 11,688
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: 1,407 Posts: 19,814
1,407 19,814
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 644633 users online. 6002 members and 638631 guests.

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

Badcaps Statistics

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Topics: 218,649   Posts: 1,451,889   Members: 555,502   Active Members: 24,173
Welcome to our newest member, Mihály Dr. Tóth.

Latest Topics

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  • Cecilius
    Huawei Matebook D15 - DAH98AMBAD0 Rev.:D dead
    by Cecilius
    Hi, I just come to this laptop with symptoms from owner - it stop charging. Thought it would be easy USB-C replacement (matebooks known issue) I took it. But port is good. After charging battery from power supply laptop is still dead. No power to EC chip. I'm out of ideas what to check next.

    Next to 3.3V LDO which is only active rail after main rail is a circuit which sends voltage to EC chip. I don't understand at all function of this circuit. It consist of 2 PNP transistors few resistors and P-channel mosfet. Below is a circuit diagram of that part with explanation. Does anybody...
    Today, 07:52 AM
  • Manucsl
    QE65Q800TATXXC Samsung TV Issue
    by Manucsl
    Hello.

    My TV is a QE65Q800TATXXC Samsung TV.

    Issue : When you plug the 220V, voltages are OK on the power board and you can hear the click from the relay, but TV is not starting when power button is pressed. Red led is blinking when you press power button. But no images or sound ( Back-light is off )
    Then if you disconnect the cable from the main board to the power supply, the TV back-light turns on.
    Any ideas to check would be very appreciated 😊

    After reading some posts on this forum, I suspect a bios issue so I bought a CH341A to dump it....
    Today, 07:47 AM
  • L.L.
    Samsung NP300 bios Password
    by L.L.
    Greetings all, could you please assist with the unlocking of this BIN

    Samsung NP300E5C

    Board Number: BA41-01979A

    I've tried many files and it didn't work.

    Please find attached the BIN
    ​...
    Today, 07:36 AM
  • 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
  • irfan-1
    AC adapter power is sucked from 19.9v to 0v?
    by irfan-1
    Hiya my HP OMEN 15-DH1005NA not working so i opened it to check the voltage, when i check the ac adapter power i see 19.9v which looks fine but when i connect the battery to the motherboard the ac adapter power starts to lower down from 19.9v to all the way to 0v,
    to get the ac adapter power back to 19.9v i need to unplug it for a few seconds and plug it back so it will work as 19.9v again,
    anyone has any idea why this happens???
    02-09-2025, 11:31 AM
  • fonteene21
    Lenovo ThinkPad L13 Gen3
    by fonteene21
    Please help. The lock on the 15p connector that connects to the keyboard on my Lenovo ThinkPad L13 Gen3 Model 21B4-001XJP is broken and I want to replace it, but I want to know the manufacturer and part number so I can order the part. I want a board view.
    Today, 06:57 AM
  • PacoGT
    Gpu DELL OEM RTX3080 No video
    by PacoGT
    Hello friends, I have a question. They brought me this video card, a DELL RTX 3080. They told me that it fell and the impact no longer produced video.
    When trying it, it's as if it wanted to give video but in the end nothing, I already checked voltages etc. everything is as it should, but without video
    I suppose it could be a bios problem but since sometimes they don't tell you everything, I've searched for the bios everywhere but without success
    I can't find a backup or something to try to reprogram bios and see if it's the fault, could you help me maybe someone has one that...
    Yesterday, 01:08 AM
  • PennyLane
    Trying to locate a capacitor for a Skytec Crossover filter
    by PennyLane
    Hi
    I'm trying to locate what i believe to be Radial Electrolytic Capacitors 100v 82uf Non-polar for a Skytec Crossover filter.
    Thanks
    Today, 06:47 AM
  • Sully114
    Maxwell Titan X 12G pcb repair
    by Sully114
    Hi, I have a bunch of old GPUs im using to learn pcb repair and microsoldering. The card has artifacts whilst running and display cuts out if you try to game on it. After initial testing I have found that the memory inductors are showing 12v each side. So being a bit of a noob at this stuff, Im assuming I would have to replace the inductors and find the broken mosfett that is causing this. Im going to add the results of my stabbing guide here tomorrow which should further help the situation. In the meantime are there any boardviews I can use as reference for this card? Heres a pic of the pcb...
    Yesterday, 07:30 PM
  • BrownDog56
    Toshiba satellite c660 series
    by BrownDog56
    i need a overview of a satellite board LA-6841P more important the ratings of mosfets & type as missing components on the board ,Tia
    Today, 05:47 AM

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