Hi everyone,
I am trying to fix a samsung washinmachine power supply main board.
I already replaced it with another one to fix the machine but i want to try understand the issue with the old board.
Therefore i hope to be able to get some help to explain what to check in order to troubleshoot.
The power supply board reference is the following: DC41-00189a
I have followed one thread ([URL]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-power-supplies-and-power-supply-design/61916-powersupply-washingmachine-relay-problem?t=67604[/URL])...
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by Doctorbst
04-02-2025, 09:28 PM
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by SMDFlea
04-17-2025, 08:21 AM
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04-19-2025, 06:26 AM
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Hi guys... Does anyone have the BIOS for the motherboard: ASUS PRIME B450 PLUS REV:1.02 If it is working... Because on the Asus website the file exceeds the chip's capacity.
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Not sure if this is the right forum but i have this one part and i cant find any info on it.
Alpha & Omega Semi part# BN7515.
It has been sitting on my desk for a while but google has not hits.
Can anyine help?
thanks in advance
[ATTACH=JSON]{"data-align":"none","data-size":"custom","height":"500","title":"20250422_111805.jpg","width":"375","data-attachmentid":3620635}[/ATTACH]...Today, 09:25 AM -
With info found on this forum, I was able to repair my Samsung LCD TV Power Cycling, Screeching High Pitched Noise Buzzing and Bad Picture. Instant success - thanks!
The capacitors C102 and C131 were replaced at a local Make It Lab Hacker Night. My thanks to those folks! However, in the process of replacing C131, the capacitor C133 right next to C131 was knocked off. Even without C133 on the circuit board, the TV now works fine. Ditto for laptop, iPhone, DVD and VCR player hookup.
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Does anyone knows how to use an Apple Potassium J137 ALDA568568 to see iBoot messages of a MacMini 2018?
I was told its to be used with Apple ktools ... where can I get it?...Today, 04:14 PM -
plz i need firmware version 3.6.0.6
Nochip_firmware_pantum_M7100_M6700_M6800
witch named :Nochip_CD35017638_M7100DN.fwr
or
:Nochip_CD1M003182_M6700D.3.6.0.6.fwr
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...04-17-2025, 12:47 PM -
The main problem with the laptop is that the charge does not rise to 56%.
I found a bios from this forum and wrote it. This time the charge increased normally.
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Probably goes by the name JL2 PocToday, 03:24 PM -
Hello. Can someone please help me remove the password?
Thanks
HP Z2 G9
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hello.
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Not sure if this is the right forum but i have this one part and i cant find any info on it.
Alpha & Omega Semi part# BN7515.
It has been sitting on my desk for a while but google has not hits.
Can anyine help?
thanks in advance
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The main problem with the laptop is that the charge does not rise to 56%.
I found a bios from this forum and wrote it. This time the charge increased normally.
But I get a problem manufactured error. I added the original bios files. The battery was tested and it is fully charged in another machine....Today, 03:52 PM -
I'm looking for schematics for Surface Pro 7+ LTE, model 1961. Motherboard description: MP5 L MB, Rev K-A
This is different board than Jalama schematics for Pro 7 that are available.
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I bought a case of them the battery cells are made in China the charge curve looks decent for 1 amp charging rate there is also a BMS protection board which here is the website link to them
[URL]https://batteryhookup.com/collections/more-featured-products/products/new-full-case-100x-3-3v-2200mah-200x-18650-lifepo4-cells[/URL]
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[COLOR=#8e44ad][B]Link to schematic & boardview[/B][/COLOR] -> [url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/93861-predator-helios-300-la-k862p-schematic[/url]Laptop Predator Helios 300, shows no signs of life, I found one burnt component, could you help me identify it please?
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