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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: 235 Posts: 42,047
235 42,047
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: 3,190 Posts: 32,710
3,190 32,710
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: 4,498 Posts: 74,848
4,498 74,848
duclong
by duclong
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: 3,978 Posts: 44,383
3,978 44,383
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: 6,837 Posts: 37,402
6,837 37,402
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: 31,988 Posts: 305,547
31,988 305,547
Sub-Forums:
BIOS Requests ONLY! (12,748/153,978)
Schematic Requests ONLY! (4,753/28,577)
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: 5,324 Posts: 75,720
5,324 75,720
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: 27,465 Posts: 374,932
Last Post:
27,465 374,932
masterm
by masterm
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: 4,183 Posts: 65,246
4,183 65,246
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: 303 Posts: 1,670
303 1,670
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: 2,329 Posts: 27,530
2,329 27,530
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: 225 Posts: 3,920
225 3,920
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: 1,004 Posts: 10,886
1,004 10,886
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: 1,381 Posts: 19,439
1,381 19,439

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There are currently 413007 users online. 3951 members and 409056 guests.

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

Badcaps Statistics

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Topics: 102,438   Posts: 1,271,678   Members: 494,191   Active Members: 16,324
Welcome to our newest member, vupham.

Latest Topics

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  • nc3000
    Asus UX481FLY Rev 3
    by nc3000
    [FONT=Calibri]Hi,
    If possible.[/FONT]
    [FONT=Calibri]Need, Asus UX481FLY Rev 3 Schematic & Boardview and Bios file.[/FONT]
    [FONT=Calibri]Thanks to All.[/FONT]
    [FONT=Calibri]Hi,
    If possible.[/FONT]
    [FONT=Calibri]Need, Asus UX481FLY Rev 3 Schematic & Boardview and Bios file.[/FONT]
    [FONT=Calibri]Thanks to All.[/FONT]
    [FONT=Calibri]Hi,
    If possible.[/FONT]
    [FONT=Calibri]Need, Asus UX481FLY Rev 3 Schematic & Boardview and Bios file.[/FONT]
    [FONT=Calibri]Thanks to All.[/FONT]
    [FONT=Calibri]Hi,
    If possible.[/FONT]
    Today, 10:05 AM
  • Stephen
    A2141 MacBook Pro 16" Turns on but no life, holds charge.
    by Stephen
    Customer computer came in, did a DFU revive, no luck, gives error, swapped out battery with two known working batteries still no luck. Board gets 20Volts, raises up to 1Amp then restarts, track pad clicks etc. Tried DFU restore, informed the customer that data recovery is most likely not possible since it didn't give us a revive and DFU restore was the next method to save the board, however it looks like not even DFU Restore is working as well. What could be causing this? I am assuming this is the infamous A2141 flaw that has the flawed Data lines that fail? Any suggestions would be great...
    Today, 10:21 AM
  • cope
    Battery not charging in ASUS G532LWS Motherboard -> BQ24780S
    by cope
    Hi everyone,

    I have been working on a no power issue with my personal ASUS gaming laptop. It went dead a few months ago.

    Some history:

    Since then, I've found a blown mosfet on the GPU line which I replaced. It started up without a battery, then when I added the battery back it wouldn't start up again.

    As a result, there were some blown components around the BQ chip. (The BQ chip itself - BQ24780S, the low side battery mosfet (shorted), and a resistor -> all replaced)

    Now, with a new battery the system will start up and run off...
    Today, 09:40 AM
  • Aleixpaolo
    Bios password for asus F15- tuf 506H
    by Aleixpaolo
    Hello, please, could someone help me with my password problem with an asus F15- tuf 506H?

    serial number : R1NRCX06Z23205A
    full model machine : TUF506HC-HN088
    board number : DAONJJMBAGO rev.G

    Thanks in advance
    05-08-2024, 08:02 PM
  • nc3000
    Asus UX481FLY Rev 3 bios
    by nc3000
    [FONT=Calibri]Hi,[/FONT]
    I have a [FONT=Calibri]Asus Zenbook that is not turning on and no image, only bliking the power button.[/FONT]
    [FONT=Calibri]Need, Asus UX481FLY Rev 3 Bios file, if possible.
    In attachments i send the original bios, because i dont know if is corrupt, and if is possible to clear ME Region to Test.[/FONT]

    [FONT=Calibri]Thanks to All.[/FONT]
    [FONT=Calibri]Hi,[/FONT]
    I have a [FONT=Calibri]Asus Zenbook that is not turning on and no image, only bliking the power button.[/FONT]
    [FONT=Calibri]Need, Asus UX481FLY Rev 3 Bios file, if possible....
    Today, 10:17 AM
  • Nagyesz
    Lenovo Ideapad 320-15ikb: Comes on and goes off
    by Nagyesz
    Hey guys, I have a Lenovo Ideapad 320-15ikb NM-B241 rev:1.0.
    After turning it on, it runs for a few seconds then shuts off completely. No screen, no fan. After shutdown, a red light comes on and off fast. I've been trying to troubleshoot this for days now. It's never been opened up; the Lenovo sticker is still intact.

    (!)I tried with a different BIOS battery, without any ribbon cables, on battery power, without the keyboard, and it's always the same.

    Any insights on what might be causing this?...
    Today, 03:05 AM
  • SMDFlea
    Asus G532LWS Schematic & Boardview
    by SMDFlea
    Asus G532LWS Schematic & Boardview

    Thanks to [USER="3807"]Rotter[/USER] and [USER="543230"]cope[/USER] for sharing these.RotterAsus G532LWS Schematic & Boardview

    Thanks to [USER="3807"]Rotter[/USER] and [USER="543230"]cope[/USER] for sharing these.cope...
    Today, 10:05 AM
  • edugimeno
    Biomass Boiler not driving cleaner motor relay. ENERTRES BIOMASA BI-650
    by edugimeno
    Hi everyone!
    I have this board that suddenly stopped supplying power to an output that drives an interchanger cleaner motor.
    I checked while the board was in place with all wires attached and there's no AC voltage on the corresponding plug X5
    This X5 is driven by fuse F8 (tested OK) which comes from the second orange relay
    To make sure there are no charcoaled contacts inside the relay, I got a 24VDC power supply and got it ready to manually power up the coil side of these relays.
    I respected the polarity, positive to cathode of protecting diode
    So provided all...
    04-18-2024, 01:15 PM
  • RomanSko1
    HP Probook 430 G2 (LA-B171P) Battery not detected
    by RomanSko1
    Hello, gentlmen!!!
    My HP Probook 430 g2 does not detect battery. I tested the battery on another laptop and it is OK.
    I believe smth is wrong with my PC ((.
    Searching this forum I found some nice suggestions.
    So, I tested Battery Connector pins (charger in/battery out) and here are my results:

    pin_1 0v (-)
    pin_2 3.30v
    pin_3 0v
    pin_4 3.38v (SCL)
    [B]pin_5 2.55v (SDA)!!![/B]
    pin_6 2.25 (+)

    As far as I understand SDA pin must be ~3.3v???
    Are there any other tests I can do before disassembling motherboard?
    I...
    05-11-2024, 05:22 AM
  • E--Man
    Samsung LED UHD TV - Bad Main Board or Bad T-Con Board? Pictures inside
    by E--Man
    Hi All,

    Thanks for reading. Based on the interesting fact that the vertical lines issue don't seem to effect the menus whatsoever but rather everything around the menu regardless of video is shown, I'm trying to set mine whether the issue is the main board or the t-con board.

    Again what's baffling is that the menu is not effected whatsoever. However, any other video displayed regardless of inputs or when no inputs exist exhibits the vertical lines and seem to effect black areas only.

    The lines are green in color when the tv is in "Game Mode" and...
    Yesterday, 10:52 AM

Trending

Collapse

  • cope
    Battery not charging in ASUS G532LWS Motherboard -> BQ24780S
    by cope
    Hi everyone,

    I have been working on a no power issue with my personal ASUS gaming laptop. It went dead a few months ago.

    Some history:

    Since then, I've found a blown mosfet on the GPU line which I replaced. It started up without a battery, then when I added the battery back it wouldn't start up again.

    As a result, there were some blown components around the BQ chip. (The BQ chip itself - BQ24780S, the low side battery mosfet (shorted), and a resistor -> all replaced)

    Now, with a new battery the system will start up and run off...
    Today, 09:40 AM
  • Nagyesz
    Lenovo Ideapad 320-15ikb: Comes on and goes off
    by Nagyesz
    Hey guys, I have a Lenovo Ideapad 320-15ikb NM-B241 rev:1.0.
    After turning it on, it runs for a few seconds then shuts off completely. No screen, no fan. After shutdown, a red light comes on and off fast. I've been trying to troubleshoot this for days now. It's never been opened up; the Lenovo sticker is still intact.

    (!)I tried with a different BIOS battery, without any ribbon cables, on battery power, without the keyboard, and it's always the same.

    Any insights on what might be causing this?...
    Today, 03:05 AM
  • Stephen
    A2141 MacBook Pro 16" Turns on but no life, holds charge.
    by Stephen
    Customer computer came in, did a DFU revive, no luck, gives error, swapped out battery with two known working batteries still no luck. Board gets 20Volts, raises up to 1Amp then restarts, track pad clicks etc. Tried DFU restore, informed the customer that data recovery is most likely not possible since it didn't give us a revive and DFU restore was the next method to save the board, however it looks like not even DFU Restore is working as well. What could be causing this? I am assuming this is the infamous A2141 flaw that has the flawed Data lines that fail? Any suggestions would be great...
    Today, 10:21 AM
  • nc3000
    Asus UX481FLY Rev 3
    by nc3000
    [FONT=Calibri]Hi,
    If possible.[/FONT]
    [FONT=Calibri]Need, Asus UX481FLY Rev 3 Schematic & Boardview and Bios file.[/FONT]
    [FONT=Calibri]Thanks to All.[/FONT]
    [FONT=Calibri]Hi,
    If possible.[/FONT]
    [FONT=Calibri]Need, Asus UX481FLY Rev 3 Schematic & Boardview and Bios file.[/FONT]
    [FONT=Calibri]Thanks to All.[/FONT]
    [FONT=Calibri]Hi,
    If possible.[/FONT]
    [FONT=Calibri]Need, Asus UX481FLY Rev 3 Schematic & Boardview and Bios file.[/FONT]
    [FONT=Calibri]Thanks to All.[/FONT]
    [FONT=Calibri]Hi,
    If possible.[/FONT]
    Today, 10:05 AM
  • lwc198
    A1418 Bios firmware reset request
    by lwc198
    Hi all

    I have a firmware blocked iMac, I have replacing with all FF after $svs but it keeps coming up with the password again

    S/N C02K3W2JDNCR
    EMC 2544

    Any help would be appreciated, I have attached the original

    Thank you...
    Today, 05:28 AM
  • clrscr
    Need bios fujisu lifebook CH55/j
    by clrscr
    Need bios fujisu lifebook CH55/j
    SN: FMVC55JW
    every body can help?
    thanks!...
    Today, 05:19 AM
  • nc3000
    Asus UX481FLY Rev 3 bios
    by nc3000
    [FONT=Calibri]Hi,[/FONT]
    I have a [FONT=Calibri]Asus Zenbook that is not turning on and no image, only bliking the power button.[/FONT]
    [FONT=Calibri]Need, Asus UX481FLY Rev 3 Bios file, if possible.
    In attachments i send the original bios, because i dont know if is corrupt, and if is possible to clear ME Region to Test.[/FONT]

    [FONT=Calibri]Thanks to All.[/FONT]
    [FONT=Calibri]Hi,[/FONT]
    I have a [FONT=Calibri]Asus Zenbook that is not turning on and no image, only bliking the power button.[/FONT]
    [FONT=Calibri]Need, Asus UX481FLY Rev 3 Bios file, if possible....
    Today, 10:17 AM
  • SMDFlea
    Asus G532LWS Schematic & Boardview
    by SMDFlea
    Asus G532LWS Schematic & Boardview

    Thanks to [USER="3807"]Rotter[/USER] and [USER="543230"]cope[/USER] for sharing these.RotterAsus G532LWS Schematic & Boardview

    Thanks to [USER="3807"]Rotter[/USER] and [USER="543230"]cope[/USER] for sharing these.cope...
    Today, 10:05 AM
  • RomanSko1
    HP Probook 430 G2 (LA-B171P) Battery not detected
    by RomanSko1
    Hello, gentlmen!!!
    My HP Probook 430 g2 does not detect battery. I tested the battery on another laptop and it is OK.
    I believe smth is wrong with my PC ((.
    Searching this forum I found some nice suggestions.
    So, I tested Battery Connector pins (charger in/battery out) and here are my results:

    pin_1 0v (-)
    pin_2 3.30v
    pin_3 0v
    pin_4 3.38v (SCL)
    [B]pin_5 2.55v (SDA)!!![/B]
    pin_6 2.25 (+)

    As far as I understand SDA pin must be ~3.3v???
    Are there any other tests I can do before disassembling motherboard?
    I...
    05-11-2024, 05:22 AM
  • 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...
    05-05-2024, 06:20 AM
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