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| Badcaps Capacitor & Electronics Repair Forum | ||||||
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Frequently Asked Questions (No Posting)
All new members, PLEASE READ HERE FIRST! Posting only allowed by established members.
Topics: 45
Posts: 733
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45 | 733 |
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Announcements & Related News
Site announcements, capacitor-related news, and anything relavant you might think of... Got News? POST IT!!
Topics: 236
Posts: 42,322
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236 | 42,322 |
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| Document & Software Archive | ||||||
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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
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1 | 4 |
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| General Topics | ||||||
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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: 32,715
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3,190 | 32,715 |
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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: 74,878
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4,503 | 74,878 |
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| Troubleshooting Hardware & Devices and Electronics Theory | ||||||
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General Electronics Technical Discussion
If you have a general question concerning basic electronics theory or component function & usage, here's where it goes.
Topics: 3,985
Posts: 44,460
Last Post:
Question about electricity
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3,985 | 44,460 |
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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: 6,867
Posts: 37,575
Last Post:
Graphics card Schematics and Boardviews
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6,867 | 37,575 |
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Sub-Forums:
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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
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501 | 5,455 |
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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: 32,156
Posts: 307,293
Last Post:
HP 15s-fq5082TU da0p5nmb8e0 rev e boardview
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32,156 | 307,293 |
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Sub-Forums:
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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: 5,329
Posts: 75,734
Last Post:
Screwed onto the board. Thoughts?
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5,329 | 75,734 |
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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: 27,488
Posts: 375,157
Last Post:
Samsung le40a656a1f reaaaaaly slow poer up
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27,488 | 375,157 |
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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: 4,193
Posts: 65,311
Last Post:
Xiaomi Vacuum Cleaner Charger PSU
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4,193 | 65,311 |
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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: 304
Posts: 1,675
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304 | 1,675 |
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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: 2,339
Posts: 27,577
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2,339 | 27,577 |
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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: 3,951
Last Post:
BOSCH Microwave CFA634 error E1006
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226 | 3,951 |
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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: 1,009
Posts: 10,922
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1,009 | 10,922 |
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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: 19,467
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1,381 | 19,467 |
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-
Hello my vacuum cleaner dock died, 0V on output. I replace the caps but still no voltage. I found out that this resistor is broken (showing 0 Ohm) do know the value of this? Is this really 0 Ohm resistor?...Today, 10:07 AM
-
Hi everyone i'm new on this forum, i have a problem with Samsung UE55MU6120KXZT, motherboard model: BN41-02568, After disconnection from 220V the TV remains switched off with status led off. I need information on how to proceed with reprogramming the flash memory and the BIN file to reprogram it. I am not very experienced but I would like to learn so the more detailed the information, the better it will be for me to proceed with this repair.
If there is already a thread of this type can you send it to me or link it. I include photos of the motherboard where you can see the IC, thanks in...Today, 09:39 AM -
Hi Folks
I've got a friend's LG OLED on the bench (well the dining table given the size of it!). It immediately powers off when turned on and sits in standby. PSU voltages are good and after disconnecting the TCON board there is stable 12V and 22V coming out of the PSU board.
Hunting around the TCON board there appears to be a shorted power rail (DVDD09_CORE) but I'm having issues identifying the component which is shorted. I've attached a picture. It's sitting before the coil so I'm assuming it's a MOSFET of some description, but the markings I can make out don't seem...Today, 06:27 AM -
Hi everyone!
Hope you're all having a great day, and thank you very much for stopping by and taking the time to read this post to help me with my parents' Samsung TV.
My issue: No backlight.
Model: QE82Q70RAT
Type No: QE82Q70RAT
The TV was already serviced by Samsung once under warranty for the exact same issue, but six months after the fix, the backlight went out again. Now, Samsung is asking for nearly the same price as a brand new TV to fix this with the same 6-month guarantee.
So hopefully, I can fix this cheaper.
...05-22-2024, 06:56 AM -
Hi all,
as subject line says, I have a laptop that reboots after 30 minutes. Investigation leads me to believe that is due to intel ME as it happens everytime after 30 minute from boot, it just turns off, no overheating, nothing weird.
I found a lot of information about cleaning ME like this [URL]https://winraid.level1techs.com/t/guide-clean-dumped-intel-engine-cs-me-cs-txe-regions-with-data-initialization/31277[/URL] and this [URL]https://github.com/corna/me_cleaner[/URL]
Anyway, first step is to dump the bios. I found the Winbond W25Q64FV chip on the motherboard, dumped...05-22-2024, 02:48 AM -
Have laptop motherboard da0zabmb6e0 rev e showing battery not detected problem.while checking have
Pin 3 - 3v
Pin 4 - 3 v
Pin 5 without battery 3 v with battery connected 0v
Pin 6- 0.56v
Pin 7&8 - 8.44v
Have tried new battery and changed bq737
When BATT Detect SW is pressed pin5 voltage goes to 0v
Have traced pin 3 and pin 4 to the it8987e....05-17-2024, 12:34 PM -
Hi,
My M3401QA does not power on properly: no display (all black) and with white LED charging port blinking slowly (once every ~3 seconds).
Checked several points across the board and supplies are up and running but I need to double check when I get schematic.
Result is still the same even with DC jack inserted and battery connector removed.
Tried flashing the latest BIOS as of this date to no avail which I suspect has something to do with DMI but tools could not run properly on my machine and couldn't find manual copy of DMI through hex editor and not sure...05-20-2024, 11:28 AM -
Hello again,
I am [I]once again[/I] working on this same laptop that I was working on in [URL="https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/3262622-hp-14-dq0055dx-bios-problem-pending-image-being-cleared-loop"]this thread[/URL]. I was able to fix all of the problems that it had, but now it has one final problem. The computer will turn on and work completely fine until you shut it down. Once the computer has been shut down, it will not turn on again, nor will it...05-22-2024, 02:32 PM -
motherboard code KV481/KV581/ NM-F051 Rev 1.0
cpu R5 7000 SERİES
S/N.PF4K7WNG
[B]There is no backup[/B]motherboard code KV481/KV581/ NM-F051 Rev 1.0
cpu R5 7000 SERİES
S/N.PF4K7WNG
[B]There is no backup[/B]motherboard code KV481/KV581/ NM-F051 Rev 1.0
cpu R5 7000 SERİES
S/N.PF4K7WNG
[B]There is no backup[/B]Yesterday, 09:43 AM -
Hello all,
I'm working on an Acer Nitro 5 (AN515-54) with motherboard EH5VF LA-501P with a short on the power rail.
I'm just learning board level diagnostic, but here is what I've found so far.
I injected 1.5v to one of the positive leads on the DC jack connector (PJP101) and read about 1.4a to ground.
I felt around for heat and found the MOSFET at PQB12 is rippin hot!
when i pulled the MOSFET from the board the short went away. In my mind it was a faulty MOSFET.
Ordered a replacement and got it installed only to find it gets very hot again and the short returns....Yesterday, 06:07 PM
-
Hello my vacuum cleaner dock died, 0V on output. I replace the caps but still no voltage. I found out that this resistor is broken (showing 0 Ohm) do know the value of this? Is this really 0 Ohm resistor?...Today, 10:07 AM
-
Hi everyone i'm new on this forum, i have a problem with Samsung UE55MU6120KXZT, motherboard model: BN41-02568, After disconnection from 220V the TV remains switched off with status led off. I need information on how to proceed with reprogramming the flash memory and the BIN file to reprogram it. I am not very experienced but I would like to learn so the more detailed the information, the better it will be for me to proceed with this repair.
If there is already a thread of this type can you send it to me or link it. I include photos of the motherboard where you can see the IC, thanks in...Today, 09:39 AM -
Hi can anybody help me with a Bios password removal on a ASUS UX425EA-KI560T /N:M6N0LP02P89724B NB2555_PCB_MB_V4
I have searched under Bios guides and Methods, extracted the bios and used a Hex reader to search for the correct string but i simply cant get my head around it.
Original Bios dump attached...Today, 01:54 AM -
Hello all,
I'm working on an Acer Nitro 5 (AN515-54) with motherboard EH5VF LA-501P with a short on the power rail.
I'm just learning board level diagnostic, but here is what I've found so far.
I injected 1.5v to one of the positive leads on the DC jack connector (PJP101) and read about 1.4a to ground.
I felt around for heat and found the MOSFET at PQB12 is rippin hot!
when i pulled the MOSFET from the board the short went away. In my mind it was a faulty MOSFET.
Ordered a replacement and got it installed only to find it gets very hot again and the short returns....Yesterday, 06:07 PM -
Hi
I need the value of C102 .
[B]Briefly[/B] : Blown Fuse . In-Series lamp lights fully = short on Hot Side - Bridge DC [U]Holes[/U] are shorted !. Bridge OK out-of-circuit. Chopper Mosfet and Diode - OK. D102 ( T4 Diode ) measures In-Circuit 0.041V both ways but Normal outside. Other caps / diodes..ok. Short remains Haarg .
BUT ! , when C102 Cap ( between Main Cap legs , it doesn't show as I took it out for easier access ) was taken out - short is gone .
Thanks a bunchHi
I need the value of C102 .
[B]Briefly[/B]Today, 09:18 AM -
Hi Folks
I've got a friend's LG OLED on the bench (well the dining table given the size of it!). It immediately powers off when turned on and sits in standby. PSU voltages are good and after disconnecting the TCON board there is stable 12V and 22V coming out of the PSU board.
Hunting around the TCON board there appears to be a shorted power rail (DVDD09_CORE) but I'm having issues identifying the component which is shorted. I've attached a picture. It's sitting before the coil so I'm assuming it's a MOSFET of some description, but the markings I can make out don't seem...Today, 06:27 AM -
motherboard code KV481/KV581/ NM-F051 Rev 1.0
cpu R5 7000 SERİES
S/N.PF4K7WNG
[B]There is no backup[/B]motherboard code KV481/KV581/ NM-F051 Rev 1.0
cpu R5 7000 SERİES
S/N.PF4K7WNG
[B]There is no backup[/B]motherboard code KV481/KV581/ NM-F051 Rev 1.0
cpu R5 7000 SERİES
S/N.PF4K7WNG
[B]There is no backup[/B]Yesterday, 09:43 AM -
Hi, I need resistor value at R51 mark at Epson L3210 Power Supply. The model of PSU is Model EPS-167E. R51 is burn, so I didn't get the value. Thanks.Yesterday, 10:22 PM
-
Hi,
I'm troubleshooting SN board of Panasonic plasma TV and I'm curious about a component that looks like an optocoupler, it has 5 legs though. I tried to check between legs 1-2, but no diode junction there, it's open. So either that is not a diode there or it's burnt.
For future searches, the part num is B3PBE0000060, the label on the component says 9157 and N219.
Any idea?
[ATTACH=JSON]{"data-align":"none","data-size":"full","title":"image.png","data-attachmentid":3277057}[/ATTACH]Hi,
I'm troubleshooting...Today, 12:51 AM -
Hello everyone.
Here is the bypass solution for several Lenovo ECs.
This has worked on many ECs.
Only works if password is contained in EC
I succeeded on many models
[URL="https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/bios-requests-only/104872-lenovo-l15-gen-2-ryzen-password-removal-w-vertyanov-successor?p=3217086#post3217086"]https://www.badcaps.net/forum/troubl...86#post3217086[/URL]
[URL="https://www.youtube.com/channel/UCeF58jC2Bt_adKcguvynjeA"]https://www.youtube.com/channel/UCeF...t_adKcguvynjeA[/URL]...03-17-2024, 11:57 AM