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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: 235 Posts: 42,391
235 42,391
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: 1 Posts: 4
Last Post: ncp81208 datasheet
1 4
BAKEEL1990
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: 3,193 Posts: 32,722
3,193 32,722
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: 4,503 Posts: 74,879
4,503 74,879
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: 3,988 Posts: 44,486
3,988 44,486
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: 6,874 Posts: 37,628
6,874 37,628
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: 501 Posts: 5,455
501 5,455
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: 32,194 Posts: 307,905
32,194 307,905
Sub-Forums:
BIOS Requests ONLY! (12,838/155,448)
Schematic Requests ONLY! (4,795/28,782)
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: 5,331 Posts: 75,740
5,331 75,740
umit
by umit
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: 27,495 Posts: 375,229
27,495 375,229
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: 4,194 Posts: 65,322
4,194 65,322
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: 305 Posts: 1,682
305 1,682
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: 2,340 Posts: 27,592
2,340 27,592
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: 226 Posts: 3,952
226 3,952
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: 1,017 Posts: 10,944
1,017 10,944
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: 1,382 Posts: 19,488
1,382 19,488

What's Going On?

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There are currently 452479 users online. 4376 members and 448103 guests.

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

Badcaps Statistics

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Topics: 102,787   Posts: 1,275,404   Members: 497,301   Active Members: 17,314
Welcome to our newest member, desezeu.

Latest Topics

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  • johnbeton
    Macbook Pro A1706 820-00923 no power after replacing top cover and keyboard
    by johnbeton
    Hello,

    I have a A1706 with 820-00923-A board. The laptop came in with non-working keyboard. I bought a new top-cover with keyboard and transfered everything to the new topcover.
    Since then the macbook will not charge or power-up. Before replacing top cover, I started the macbook to test, and it worked fine apart from keyboard. Then shut it down and did replacement.
    This is what I measure so far:


    Resistance from F7000 to ground is 123 Ohm on pin 1 and 2

    PPBUS_G3H = 0,79v
    PPBUS_HS_CPU = 0,79v
    PPBUS_HS_OTH5V = 0,79v
    PPBUS_HS_OTH3V3...
    05-21-2024, 02:06 PM
  • Arc717
    How do I flash bios to an Alienware M16 R1 AMD edition?
    by Arc717
    I am trying to downgrade my bios on my Alienware so I can undervolt & overclock my CPU, and overclock my ram. I need to get to bios 1.2.2 for this. Dell doesn't allow downgrades, and their bios file is an exe compiled in c++, so I can't decompile it easily. I am wondering if I can flash the bios manually using a usb flasher. I would like to know if this is possible, and if so, where the bios chip would be. I know flashers are pretty cheap and the bios chip is 8-pin. There are two of these chips only when I open the back panel of the laptop. I'm not sure if there are any on the other side of...
    05-17-2024, 03:34 PM
  • trmrtts
    samsung np550 charging problem
    by trmrtts
    hi all

    i have samsung np550: ac adapter with not working but with battery working.charging ic bq735
    vcc :19v
    acdet:3.1v
    acok:0v
    regn:6v

    i changed charging ic,I/O controller and mosfets

    whats my problem?

    boardview:[url]https://dosya.co/oi17vyps6779/MCLAREN_15_BA41_01898A_BA41_01899A_BA41_01900A_BDV.zip.html[/url]
    schematic:[url]https://dosya.co/kqzslmg2khl9/Samsung_NP550P5C=BA41-01898A_BA41-01899A_BA41-01900A_McLaren-15_Rev_0.9_DR-BIOS.COM.zip.html[/url]
    https://hi all<br /> <br /> i have s...50: ac adapter...
    Today, 09:54 AM
  • s_henya
    Lenovo Yoga 500-15ISK several faults
    by s_henya
    Hi guys,

    Anyone ever worked on this board before?
    Few issues im trying to resolve:

    1. Laptop will not power up without main battery connected (missing 3.3v line)- measuring on the 3.3v coil i can see 0v but for split second it jumps to 3.3v and drops again.
    Is this laptop supposed to power on only with battery connected?

    2. Battery voltage + line is getting 19v, for my experience 7.4v battery isn't meant to be charged with main line voltage- is this normal?

    3. No display on laptop screen, if i disconnect the LVDC cable and connects...
    Yesterday, 02:50 PM
  • Stanley1843
    Motherboard W26361-W84-X-02 - Black Screen
    by Stanley1843
    Hello to everyone.
    My [B]W26361-W84-X-02[/B] motherboard starts but don't show image (no logo screen neither bios). Because, I have two of them I desoldered the bios chip from the no working motherboard and I soldered it to the working motherboard and the motherboard works OK, so the bios firmware isn't the problem. Below I took some measurements from the no working motherboard when is power on. Also, I replaced the RAM and didn't work again (maybe some pins from the RAM slot don't have the right voltage?). I replaced and the bios battery, and I made reset on the bios and again the problem...
    05-23-2024, 03:51 PM
  • clyde1210
    1633 CM -4 94V - 0 E162264
    by clyde1210
    Hello,
    someone have schematic for asus R540L :
    motherboard 1633 CM -4 94V - 0 E162264

    Thanks a lot
    Today, 01:42 PM
  • Luke11037
    ASUS Vivobook 14 OLED M3401QA not posting
    by Luke11037
    Hello everyone,

    I have an ASUS Vivobook 14 OLED M3401QA which is not posting. Currently when plugged into power/turned on the power indicator will illuminate and the battery indicator will flash white roughly once every 3 seconds. Leading up to this it would sometimes turn on and then other times not turn on, furthermore it also showed a screen saying "new cpu installed, fTPM/PSP NV corrupted or fTPM/PSP NV structure changed" and then a screen telling me to recover the bios however it is no longer even posting at this stage.

    The diagnostics steps I have attempted...
    05-25-2024, 02:34 PM
  • matk
    Question about electricity
    by matk
    Hello, I have a question about electricity. Suppose I'm well insulated from ground and neutral, and the live wire of mains comes in touch with a wound in my finger, will this potential interfere with body voltages, hearth for example, or it will only go to its circuit return path ?

    Thanks!
    05-23-2024, 02:12 PM
  • milktoast56
    LPC_DEBUG pinout on H61-Joshua
    by milktoast56
    I am struggling to find the LPC_DEBUG header pinout for this motherboard, does anyone know it?
    Thanks in advance
    05-10-2024, 06:31 AM
  • spleenharvester
    Quecoo T12-958 soldering station - INVER error?
    by spleenharvester
    I bought a T12-958 recently with an M8 handle and until now it has worked very well. The tip wasn't earthed but that was easily resolved.

    Now, whenever it is switched on, it heats up to about 70*C then shows an [INVER] error on the screen and stops. In order to fix it I have to either unplug and re-plug the handle, or unplug and re-insert the tip from the handle. While doing that it changes to [ERROR], then it finishes heating up and works perfectly. Until it's turned off, after which it will show [INVER] again next time it is turned on.

    Any idea what the problem is?
    05-06-2024, 01:36 PM

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