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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: 235
Posts: 42,492
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235 | 42,492 |
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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: 2
Posts: 5
Last Post:
ncp81208 datasheet
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2 | 5 |
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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: 3,194
Posts: 32,736
Last Post:
How can I test non-polarized capacitor?
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3,194 | 32,736 |
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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: 4,507
Posts: 74,893
Last Post:
Copy-protected DVDs
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4,507 | 74,893 |
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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: 3,994
Posts: 44,520
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3,994 | 44,520 | ||||
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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: 6,889
Posts: 37,713
Last Post:
Graphics card Schematics and Boardviews
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6,889 | 37,713 |
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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: 502
Posts: 5,457
Last Post:
4G LTE router sim socket replacement
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502 | 5,457 |
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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: 32,271
Posts: 308,753
Last Post:
Samsung Galaxy A51 Boardview
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32,271 | 308,753 |
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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: 5,332
Posts: 75,746
Last Post:
Dell U3011 no display after a few minutes
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5,332 | 75,746 |
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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: 27,505
Posts: 375,305
Last Post:
LG 65UQ7050ZUD No Picture Backlight On
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27,505 | 375,305 |
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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: 4,196
Posts: 65,349
Last Post:
Omega MML200 Coutant Lambda PSU repair
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4,196 | 65,349 |
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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: 306
Posts: 1,687
Last Post:
Bios Canon mg 6853
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306 | 1,687 |
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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: 2,343
Posts: 27,606
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2,343 | 27,606 |
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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: 3,952
Last Post:
Xiaomi Roidmi EVE Pro battery died!
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226 | 3,952 |
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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: 1,018
Posts: 10,952
Last Post:
PS5 Slim Beep No Light UART DDR4 Error
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1,018 | 10,952 |
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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: 1,382
Posts: 19,499
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1,382 | 19,499 |
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Hello, is it possible to unlock the BIOS and see whether there is an option to automatically turn on when power detected?...Today, 02:42 AM
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Hey Friends,
I have an MBP 2019 16" (A2141), i9/64Gb/1Tb, and recently the LCD went out. Not flexgate or Dustgate. Backlight is on and works, the board still works and posts to an external monitor. Not a software issue, absolutely nothing shows up onscreen except for backlight glow. opened the bottom cover and resistor L8504, a 120 ohm resistor (I believe) is fried, and fell off the mobo with a gentle touch. after it fell off, same problem with zero change observed which is why I think it is the issue. That resistor, acc to the 820-01700 motherboard schematic, goes straight to pin 46...05-16-2024, 02:28 PM -
Guys I have set top box which has no power on in specific case. When I insert antenna plug which has 12V on it because of dB gain device on top of antenna, device if its turned off, it will not turn on.
After I need to open the case and short + and - on ABS10 chip and after that device will turn on, without antenna plugged in, after its turned on I can plug in antenna and it will work fine, but I notice there is some extra heat inside the unit.
Is this chip okay? Rectifier bridge ABS10 JQC I don't think there should be connection like additional diode between plus and minus...Yesterday, 03:09 AM -
Hello everyone, I need some help with a PS5 Slim board EDM-040 that will beep but no light or fan spin.
When I connect my bench power supply, (12v 0.500amp) the amps go between .135-.035 then back to .005.
When I attach UART I get the error code below. I have replaced the DDR4 ram IC with one from a donor board. Cannot verify is the IC was working or not, still same error.
[Slot #] [Date Time] [Error Code] [Priority] [Error Message]
00 5/27/2024 4:25:40 PM 80871001 Low DDR4 Error (Power Failure or Short Circuit)
|-(OK 00000000 80871001 17554CCE...05-27-2024, 02:51 PM -
Hi there! Looking specifically for a boardview for the Samsung Galaxy A51 smartphone (SM-A515F global/international model, if that makes a difference).
Thank you kindly 😜Today, 07:29 AM -
Hi all,
First off, this forum really helped me out by advising me to cut some ribbon connectors to the LCD panel in order to fix a 70" TV (lots of threads on Sharp TVs with this issue). I didn't believe that it could work, but it did.
Now I've been encouraged to try to diagnose something quite a bit more complicated. That is an old T430 motherboard. I work on a college campus so I have access to pretty decent tools. I found the schematic for the motherboard on the site, and have been following traces and taking DC measurements from things. I also don't mind...06-01-2024, 03:27 PM -
Hello.
As someone suggest i bought this EV2400 clone battery programmer. Now i have one battery that need to check, but i cannot find topic with guide.
So what program should i use and how to check that battery?05-29-2024, 12:00 AM -
Hey everyone, I have an LG 65uq7050zud with a black picture but backlight is on. I tested the measurements from the PSU and they check out. I can’t find any service manual so I’m suspecting the main board. Any advice before I replace the board? Found them for around $60...Yesterday, 12:10 PM
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[B]Lenovo Ideapad Flex 5-14IAU7 working bios[/B]
​[B]Lenovo Ideapad Flex 5-14IAU7 working bios[/B]
​...05-31-2024, 02:22 AM -
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
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Hey everyone, I have an LG 65uq7050zud with a black picture but backlight is on. I tested the measurements from the PSU and they check out. I can’t find any service manual so I’m suspecting the main board. Any advice before I replace the board? Found them for around $60...Yesterday, 12:10 PM
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Hello, is it possible to unlock the BIOS and see whether there is an option to automatically turn on when power detected?...Today, 02:42 AM
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Please help! Need bios:
Asus G532LWS-AZ137T (Motherboard: g532lws rev.1.3)
CPU I7 10875H
GPU RTX2070
QR Code on board: XM08MC02S7,L835NRKD0006YSMB,G532LWS,60NR02T0-MB8100,130,3C7C3F5C2361Today, 02:32 AM -
I get backlights that stay on not there is no image. The tv does not automatically power on when plugged in either which I generally see happen when there is a fault. It responds as it should to the power button.
I checked the test points on the TCON and I have proper voltages except for at 1P15V. I don't know if that is supposed to be 15V or 5V, but either way I only get 1.134V on that point. I have 12V, 8V, VCC, and a small amount on the CKV point.
I tried heating up the SoC on the main board but that made no difference. Disconnecting either ribbon from the TCON also...06-01-2024, 08:55 PM -
Hi there! Looking specifically for a boardview for the Samsung Galaxy A51 smartphone (SM-A515F global/international model, if that makes a difference).
Thank you kindly 😜Today, 07:29 AM -
anyone can clean the me region of this bios?? i need clenan it because i change the processor.
huawei mach-w29
id2018ap0990
board id sp1machw19mverb rf hf
thx in advanceToday, 05:44 AM -
Guys I have set top box which has no power on in specific case. When I insert antenna plug which has 12V on it because of dB gain device on top of antenna, device if its turned off, it will not turn on.
After I need to open the case and short + and - on ABS10 chip and after that device will turn on, without antenna plugged in, after its turned on I can plug in antenna and it will work fine, but I notice there is some extra heat inside the unit.
Is this chip okay? Rectifier bridge ABS10 JQC I don't think there should be connection like additional diode between plus and minus...Yesterday, 03:09 AM -
I have a Samsung UN55TU700DFXZA with a distorted picture and I thought it was a bad panel. I had a similar board with one number off and still tried it to see what the issue could be. The picture came out clear with only missing blue hue I think. I found a replacement board for $30 but wanted to learn if this would be the main IC or possibly something else. I don't have service manual so looking to learn about these cheap sets....Yesterday, 03:50 PM
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I desoldered samwha NF capacitor(50v 5.6uf) from PCB circuit of 29inch CRT TV which have symptoms of no display after I heard sound of inrush of current to TV whenever I switch on this television.
I measured ESR value of this non-polarized capacitor(samwha NF capacitor 50v 5.6uf) by means of MESR-100 ESR meter and It displayed 0.3 ohm
And When I measured its capacitance with digital multimeter and LCR-T4 Mega328 meter, It displayed 10uf from DMM and 8uf from LCR-T4 meter.
I found catalogue of samwha capacitor(samwha-catalogue_3.pdf file), which is attached to this thread,...Yesterday, 07:31 PM