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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: 236 Posts: 41,915
236 41,915
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: 3,185 Posts: 32,699
3,185 32,699
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: 4,497 Posts: 74,845
4,497 74,845
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: 3,974 Posts: 44,349
3,974 44,349
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: 6,816 Posts: 37,322
6,816 37,322
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: 5,444
501 5,444
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: 31,897 Posts: 304,220
31,897 304,220
Sub-Forums:
BIOS Requests ONLY! (12,711/153,326)
Schematic Requests ONLY! (4,740/28,498)
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: 5,322 Posts: 75,706
5,322 75,706
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: 27,454 Posts: 374,766
27,454 374,766
Davi.p
by Davi.p
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: 4,181 Posts: 65,235
4,181 65,235
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: 301 Posts: 1,665
Last Post: Epson l3110 dump
301 1,665
hardwaretaj
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: 2,326 Posts: 27,465
2,326 27,465
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: 223 Posts: 3,909
223 3,909
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: 1,002 Posts: 10,873
1,002 10,873
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: 1,378 Posts: 19,399
1,378 19,399

What's Going On?

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There are currently 319900 users online. 3837 members and 316063 guests.

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

Badcaps Statistics

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Topics: 102,277   Posts: 1,269,734   Members: 493,234   Active Members: 16,257
Welcome to our newest member, kimchanjun.

Latest Topics

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  • GraphicMan
    Pioneer amplifier A-205 Relay not clicking after a mistake i made
    by GraphicMan
    Hello guys
    Because the unit is old (but only occasionally used) the loudness button causes some noise due to bad contact,
    sprays did not work, so i decided to solder the pins that it connects on the pcb at the on (loudness on) position
    i did that and it worked fine, i know from the bottom of my heart that the switch connects 2 pins and also d/c other 2 pins
    on every position it have (6 pin switch), so i was curious what would happen if i clicked the switch off while the pins are soldered at on (so basiclly on and off at the same time), when i did so the sound is gone, nothing...
    Yesterday, 06:20 AM
  • techrefurbca
    BIOS request for ASUS x415dap
    by techrefurbca
    Hi,

    It is my first BIOS request here.
    I have a bios-locked AUS M415D

    ASUS X415DAP
    Today, 07:17 PM
  • NootABoot
    Legion Y540 Bios Password Reset
    by NootABoot
    I created a supervisor password for my laptop a while back and I forgot it. It can't be reset by resetting CMOS. Can I extract it from a BIOS dump or through another method without a bios/eeprom programmer?
    Yesterday, 09:10 PM
  • gjgib
    Help reading schematic voltages input/output
    by gjgib
    Hello, this might be embarassing since I consider it a dumb question but keeps me kinda stuck sometimes in my journey.

    I want to know if there is any post in this forum which explains my questions. [B]A)[/B] [B]When, where and how do I know when X voltage line is input or output. Example: [/B]

    [URL=filedata/fetch?id=3266119&d=1715040463][ATTACH=JSON]{"alt":"Click image for larger version Name:\timage.png Views:\t0 Size:\t151.9 KB ID:\t3266119","data-align":"none","data-attachmentid":"3266119","data-size":"thumb"}[/ATTACH][/URL]...
    Today, 08:11 PM
  • kk126
    da0h9bmbcd0 ic help
    by kk126
    Hello, I have a da0h9bmbcd0 card which had a liquid spill, there was an area in which corrosion damaged the power rails but it is almost undetectable to where they are connected, I looked for the schematic diagram of the equipment but it is not available so if you can help me I would appreciate help knowing which integrated part is the one that had the damage....
    Today, 06:01 PM
  • trepachka
    Converting HP EliteBook 840 G7 non-touch to touch if possible
    by trepachka
    I am trying to convert a HP EliteBook 840 G7 notebook from a non-touch to a touchscreen. I purchased a complete touch LCD assembly with a screen/back cover/bezel/video cable and swapped it out with the original non-touch LCD assembly.
    The screen works but the touch does not. I know the new LCD assembly is completely functional because we tried it on a similar touchscreen EliteBook 840 G7 and the touch works there.
    I contacted the seller and he said screen conversion like this will not work due some difference in the motherboard for non-touch and touch capable EliteBook 840 G7.
    ...
    04-27-2024, 11:15 PM
  • EazyBone
    What is this component
    by EazyBone
    Shown in picture, trying to replace a MOSFET and looks like I knocked this off, in guessing it's the same as one next to it. Has 1.8 Mohms. Any way to bypass it? It's on the hot side

    The component circled is the one there, the arrow is I think another of same component?
    Today, 11:47 AM
  • petehall347
    anyone recommend an earth leakage clamp meter ?
    by petehall347
    have been looking at earth leakage clamp meters and its like a minefield out there . i wondered if anyone here had bought one that actually works properly ?...
    04-17-2024, 01:31 PM
  • chaos-theory
    RX580 MSI armor OC 8gb no post
    by chaos-theory
    I have a card that does post at all, the owner said it does go into windows but it gets stuck on the logo with artifacts, I have no idea if he is lying or not... I tried the card on my pc and it does not post at, no beeps, no bios nothing just all fans turning and nothing else. I tried plugging DVI or hdmi but nothing, I tried unplugging the 8 pin plug from the power supply and it's the same thing.
    I just want it to post and get into the bios at least.
    Forgive me if I am wrong, but I tested the 3 PCIe 12v power pins on the left(550ohm) and the 4th one from the right 3.3v (400ohm),...
    04-18-2024, 02:42 AM
  • PITERPENY
    macbook a1707 820-00928
    by PITERPENY
    there is no reaction, it hangs at 20 V/0A. There was a little corrosion in the u7650 area. Replacing the u7000 did not help. Tell me, what else could it be? PPBUS_G3H=12.9V
    Flashing the bios with a clean region also did not work!
    Today, 04:31 PM

Trending

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  • fredyjbi
    please help friend's thinkpad T480 NM-b501 dead, VSYS_OUT 9.2v, thank you
    by fredyjbi
    Please help sir, this board does not turn on because VSYS_OUT is 9.2v, I compared it with a normal board VSYS_OUT is 10.2v, I have replaced the PQ101 and PQ102 mosfet and BQ 25700 which is known to be good, but the results are still the same, thank you

    VSYS_OUT 9.2v
    Meter in resistance mode auto range 6M ohm ok

    NORMAL BOARD VSYS_OUT 10.2V


    PQ101
    PIN 2 20V
    PIN 7 0.004V
    PIN 6 6V
    PIN 5678 0V

    PQ102
    PIN 567 0V
    PIN 9 0.004V
    PIN 234 9.2V (VSYS_OUT)

    PU101 BQ25700ARSNR
    1 VBUS 20V...
    Today, 10:48 AM
  • EazyBone
    What is this component
    by EazyBone
    Shown in picture, trying to replace a MOSFET and looks like I knocked this off, in guessing it's the same as one next to it. Has 1.8 Mohms. Any way to bypass it? It's on the hot side

    The component circled is the one there, the arrow is I think another of same component?
    Today, 11:47 AM
  • techrefurbca
    BIOS request for ASUS x415dap
    by techrefurbca
    Hi,

    It is my first BIOS request here.
    I have a bios-locked AUS M415D

    ASUS X415DAP
    Today, 07:17 PM
  • kk126
    da0h9bmbcd0 ic help
    by kk126
    Hello, I have a da0h9bmbcd0 card which had a liquid spill, there was an area in which corrosion damaged the power rails but it is almost undetectable to where they are connected, I looked for the schematic diagram of the equipment but it is not available so if you can help me I would appreciate help knowing which integrated part is the one that had the damage....
    Today, 06:01 PM
  • gjgib
    Help reading schematic voltages input/output
    by gjgib
    Hello, this might be embarassing since I consider it a dumb question but keeps me kinda stuck sometimes in my journey.

    I want to know if there is any post in this forum which explains my questions. [B]A)[/B] [B]When, where and how do I know when X voltage line is input or output. Example: [/B]

    [URL=filedata/fetch?id=3266119&d=1715040463][ATTACH=JSON]{"alt":"Click image for larger version Name:\timage.png Views:\t0 Size:\t151.9 KB ID:\t3266119","data-align":"none","data-attachmentid":"3266119","data-size":"thumb"}[/ATTACH][/URL]...
    Today, 08:11 PM
  • PITERPENY
    macbook a1707 820-00928
    by PITERPENY
    there is no reaction, it hangs at 20 V/0A. There was a little corrosion in the u7650 area. Replacing the u7000 did not help. Tell me, what else could it be? PPBUS_G3H=12.9V
    Flashing the bios with a clean region also did not work!
    Today, 04:31 PM
  • aaronkatrini
    Recommend a decent Multimeter on the cheap
    by aaronkatrini
    Hi all,

    I was looking to upgrade my main multimeter (Asita MD591) with something that has more features. I'll use it mostly for board diagnostic and diy repairs. I've been eyeing out many of those multi-function ones from Aliexpress but can't seem to make my mind up. Here are the features that I'm looking after:

    - Autorange
    - DC volts up to 30V
    - Accurate Resistance
    - Diode test (Beep mode)
    - Frequency up to 200MHz
    - Capacitanze up to 5000uF
    - as cheap as possible

    Other functions are not needed but those which are needed...
    Today, 09:54 AM
  • smaniak
    HP Elitebook 2540p - WP884AW#ABU - won't start!
    by smaniak
    The laptop won't start. When plug power supply, on 19V in gives me 0,14A, without turning on the laptop.
    I check it with thermal camera, and there is one resistor that is very hot, I change the resistor with new on but the result is the same.
    In the attachment there is schematic of the resistor area, and schematic of the laptop.
    I can't understand, why this resistor is getting so hot....
    Yesterday, 01:24 AM
  • NootABoot
    Legion Y540 Bios Password Reset
    by NootABoot
    I created a supervisor password for my laptop a while back and I forgot it. It can't be reset by resetting CMOS. Can I extract it from a BIOS dump or through another method without a bios/eeprom programmer?
    Yesterday, 09:10 PM
  • rostomzerrougui
    CH341A programmer can't erase chip!
    by rostomzerrougui
    i want to program a W25Q40CL chip but looks like it won't get erased neither programmed
    [ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3265889}[/ATTACH]
    Any help ?​i want to program a W25Q40CL chip but looks like it won't get erased neither programmed
    [ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3265889}[/ATTACH]
    Any help ?​...
    Today, 10:40 AM
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