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Badcaps Capacitor & Electronics Repair Forum | ||||||
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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.
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ncp81208 datasheet
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2 | 5 | ||||
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Questions and answers for identifying whether your device has bad capacitors. Also post general capacitor-related questions and issues here.
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How can I test non-polarized capacitor?
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3,195 | 32,744 | ||||
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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!
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FlexBV boardviewer
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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!
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Lenovo Ideacentre A310 schematic
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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!
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4G LTE router sim socket replacement
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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!
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Lenovo Ideapad 3-15ITL6 NM-D472
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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!
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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!
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Sony KDL 55W-955B Sony EMMC dump search :)
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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!
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Welder not turning on - Learning
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4,199 | 65,379 | ||||
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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: 308
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i need dump for printer canon G3430
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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!
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2,344 | 27,613 | ||||
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!
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Samsung WD80N645OOW died mid-cycle
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Topics: 1,024
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Xbox 360 Xenon Modern Capacitor Replacements
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1,024 | 11,007 | ||||
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.
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Badcaps Statistics
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Topics: 103,052
Posts: 1,278,138
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Active Members: 18,302
Welcome to our newest member, szabolcs19930905.
Latest Topics
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by Olles4Hello people. I trying to repair my welding machine oerlikon citomig 180mp hpf and there is a little board with blown stuff.The problem is i cant identify the value of the blown resistor and diode. Any suggestion?05-18-2024, 01:22 PM
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by mrsithHi fellow lifesavers.
I have a Samsung washer-dryer WD80N645OOW which died mid-cycle. No response to anything, completely dead.
Checked the socket, the plug fuse, all good. Took it out to examine the boards.
There is a relay clicking on the mainboard. Upon applying power, I can see a diode flashing on inverter board, after a while a diode on main board lits up for a split second, then I can hear a relay clicking. This repeats a few times, then everything dies completely.
I've been trying to examine the main board, but it's a bit difficult becuse...4 Photos06-06-2024, 09:11 AM -
by yop_FRHello,
I have 2 laptops E14 and one E15 with the same problem: don't turn on (no led) I suspect the bios and I have buy an CH341A.
But now I need a new bios...
I give below the older bios, can you check it please, or give a valid version of BIOS?
I will be very grateful to you
At first, this is the numbs of a e14: 20TA-00EWFR
with a bios chip: Gigadevice GD25Q80
Motherboard: GE4B0/GE5B0 NM-D011
thanks...-
Channel: BIOS Requests ONLY!
05-17-2024, 02:58 PM -
-
I started troubleshooting this Razer Blade 15 laptop DA560 motgerboard a while back, due to some shorted 19v, 5v, 1v power rails. I fixed some of components and think 19v rail is good, 5v rail is good, 3v is better but not all way i think, and 1v is still bad. At this point the diode reading on these rails are 19v - 0.032v , 5v - 0.167v, 3 - 0.63v and 1v - 0.005v .
When the rails when down, I went down different rabbit holes and seeing chips getting pretty warm on thermal but not blazing hot. Yet there were not any caps or any small components getting blazing hot. Example is EC chip,...1 Photo06-06-2024, 11:35 AM -
Hello guys, can someone help me with an eMMC dump for a Sony KDL55W-955B TV, I tried to read the original memory with the RT809H but it shows me that it only has 1888MB even though it should have around 3.8GB. On a new memory it shows me 3776MB. From what I found on the Sony page, the following models could also be compatible:
KDL-65W955B, KDL-55W955B, KDL-60W855B, KDL-50W805B, KDL-42W705B, KDL-32W705B, KDL-48W605B, KDL-40W605B, KDL-60W605B, KDL-55W805B, KDL-42W805B, KDL-48W585B, KDL-32W706B, KDL-42W706B, KDL-42W815B, KDL-42W817B, KDL-50W815B, KDL-55W815B, KDL-42W828B, KDL-42W829B,...Yesterday, 04:13 PM -
by cymro121Hia, I'm pretty sure am having an issue with an LED driver on my grow lights.
Video's...
[url]https://drive.google.com/file/d/1OdpD-7aUmWlyZqvyjzCulVa0t0A8j4Ml/view?usp=sharing[/url]
[url]https://drive.google.com/file/d/1OcVBUU1QFgeggOqKH1cmYaa67VemjDmi/view?usp=sharing[/url]
Photo's of driver circit..
[url]https://drive.google.com/file/d/1OjX0WJBmIgYXBPlMGB2Iyd0XTl_BvjuV/view?usp=sharing[/url]
[url]https://drive.google.com/file/d/1Oj5g5e4ev2oG4ERa1wX1x_KMF7PfKS8v/view?usp=sharing[/url]
One side of the lights were working correctly...Today, 12:33 PM -
by CornitoHello team,
I'm back with another topic.
It's a 65C715 TCL tv with backlight issue.
But the problem is a bit strange.
When I took this tv from the marketplace backlight didn't work but picture was ok.
Back at home I checked with led tester if led are alive and I can find something different in term of voltage supply => nothing
Putting all back together the tv worked fine for weeks. => Contact issue??
Few moment later the tv has started to have backlight issue back, turning off and on worked sometimes and tv was working....Today, 02:24 AM -
by 90NinetyDisclaimer Firstly I am by no means expert and this is still a learning experience , I buy broken stuff , with the intention to fix or learn something by failing.. I wanna break this into a few sections, please feel free to mention the section if replying , to assist me on getting a better understanding
[B]Part 1 , identifying Rails .[/B]. So for the record , I understand on NVIDIA cards there are several Rails. Along with their Supposed Voltages ( Voltage depends on age/ generation )
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"400","title":"3060...Today, 09:43 AM -
by md500zz0.8tpitu4y0i8zzI bought a ch341a (I'm waiting for it to arrive) and I noticed that the programmer has a bug that the data pins go to 5v when the VCC pin is at 3.3v (which is the voltage I'm looking for).
Instead of doing the 3.3v mod, I'm thinking of converting the 5v to 3.3v with an 8 channel TXS0108E through the ZIF socket but I don't know if that would work, because it has to circulate voltage and also information.
What I am looking for is something that will convert from 5v to 3.3v but without modifying the ch341a.
I can't buy the ch341a 1.6v that has...05-24-2024, 06:51 PM -
by Med-TechHello, quick question. I am looking for an equivalent Transistor for a 9Bt. Not been able to find anything of use online, therefore I m reaching out to you all. I have found this 9bt is a MMBTRA109SS.
Thanks for looking and assistance.Today, 10:05 AM
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by cymro121Hia, I'm pretty sure am having an issue with an LED driver on my grow lights.
Video's...
[url]https://drive.google.com/file/d/1OdpD-7aUmWlyZqvyjzCulVa0t0A8j4Ml/view?usp=sharing[/url]
[url]https://drive.google.com/file/d/1OcVBUU1QFgeggOqKH1cmYaa67VemjDmi/view?usp=sharing[/url]
Photo's of driver circit..
[url]https://drive.google.com/file/d/1OjX0WJBmIgYXBPlMGB2Iyd0XTl_BvjuV/view?usp=sharing[/url]
[url]https://drive.google.com/file/d/1Oj5g5e4ev2oG4ERa1wX1x_KMF7PfKS8v/view?usp=sharing[/url]
One side of the lights were working correctly...Today, 12:33 PM -
by gustaznkrHey guys! I've recently found out this amazing forum where people talk and discuss about electronics repairs and i'm actually amazed with everything that here's have to offer.
Oh well, i came here looking for a simple bios file in order to get my main laptop working again, but after a while trying to figure out what the hell was going on, i'm quite concerned that it would be worse than i tought. I was fooling around with Mr. Smokeless's UMAF BIOS mod, looking for a way to enable CSM compatibility and legacy boot on my device.
Device specs:
AN517-54-51RQ (LA-L181P)...-
Channel: BIOS Requests ONLY!
Today, 08:49 AM -
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by ongobongoI am still working on an Lenovo e14 AMD notebook with some problems. The laptop booted normally but had a ton of problems with the soldered ddr4 memory. I tried deactivating the memory via bios, but that didn't work.
As i have a matching donor here, I decided to change the module i suspect to be faulty and exchange it with one of the donors.
Did so, but now the laptop won't boot anymore.
Anyone here who already did that and can comfirn, that exchangeing one module alone would work? Or do I need to exchange all 4 of them to make it work?Today, 02:42 AM -
by pacheko666Hello everyone!!! I recently got this Philips Smart TV model 43PFL5766/F7 E without power. After some troubleshooting, I found a short in the main board, while injecting voltage noticed a component getting hot, removed it and voila! short released. I cant find any information about the component I took off it reads FZN 910. I'm attaching some pictures of the component itself and the board for reference. Any help or suggestion is really appreciated ....Today, 09:49 AM
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by Med-TechHello, quick question. I am looking for an equivalent Transistor for a 9Bt. Not been able to find anything of use online, therefore I m reaching out to you all. I have found this 9bt is a MMBTRA109SS.
Thanks for looking and assistance.Today, 10:05 AM -
by Raphael Nike[SIZE=14px]Hi techies!
Please help me to find and grab [B]Asus ga503qs 404 or 409 versions[/B]. I will be very pleased. And I'm all ready to give something valuable for exchange!
Please help me out!
these links are already dead:[/SIZE]
[URL]https://dlcdnets.asus.com/pub/ASUS/GamingNB/GA503QS/ASUS_GA503QS_409_BIOS_Update.exe[/URL]
[URL]https://dlcdnets.asus.com/pub/ASUS/GamingNB/GA503QS/GA503QSAS409.zip[/URL]
[URL]https://dlcdnets.asus.com/pub/ASUS/GamingNB/GA503QS/ASUS_GA503QS_404_BIOS_Update.exe[/URL]
[URL]https://dlcdnets.asus.com/pub/ASUS/Ga...-
Channel: BIOS Requests ONLY!
Yesterday, 08:40 PM -
-
Hello guys, can someone help me with an eMMC dump for a Sony KDL55W-955B TV, I tried to read the original memory with the RT809H but it shows me that it only has 1888MB even though it should have around 3.8GB. On a new memory it shows me 3776MB. From what I found on the Sony page, the following models could also be compatible:
KDL-65W955B, KDL-55W955B, KDL-60W855B, KDL-50W805B, KDL-42W705B, KDL-32W705B, KDL-48W605B, KDL-40W605B, KDL-60W605B, KDL-55W805B, KDL-42W805B, KDL-48W585B, KDL-32W706B, KDL-42W706B, KDL-42W815B, KDL-42W817B, KDL-50W815B, KDL-55W815B, KDL-42W828B, KDL-42W829B,...Yesterday, 04:13 PM -
by Ancient1Elco (?) 50" Smart TV. Backlight ( BL) issue.
Single Board : TP.SK708D.PC821
I bought new BL set . - OK
Power up : Blip . Protection.
Led Tester shows current at 34.2 mA , Previously it was 42.1 mA
Solution : Change current output .
The BL IC is marked on the photo and datasheet is [URL="https://www.alldatasheet.com/datasheet-pdf/pdf/1206930/SCHNEIDER/QOB33535.html"]QOB33535 Datasheet(PDF) - Schneider Electric (alldatasheet.com)[/URL]
Calculating according to the datasheet - see attached photo :
With ILed = 34.2mA , equation #1...4 PhotosToday, 12:25 PM -
by 90NinetyDisclaimer Firstly I am by no means expert and this is still a learning experience , I buy broken stuff , with the intention to fix or learn something by failing.. I wanna break this into a few sections, please feel free to mention the section if replying , to assist me on getting a better understanding
[B]Part 1 , identifying Rails .[/B]. So for the record , I understand on NVIDIA cards there are several Rails. Along with their Supposed Voltages ( Voltage depends on age/ generation )
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"400","title":"3060...Today, 09:43 AM -
by sam_sam_samI found two capacitors on the board and one of the leads on one capacitor had bad soldering joint and the other joint connections not much better and there were several soldering joints that way to much flux around the joint redid several of them
The capacitors were a non brand that I did not recognize they got replaced and now it does not oscillating between relay but what concerns me a little bit is when the voltage is a little bit low the output voltage is around 130 volts and then drops down to 115 volts this happens around 105 to 108 volts if remember correctly
Now...Today, 10:57 AM