khaahk
Badcaps Veteran
Last Activity: 04-22-2025, 04:43 AM
Joined: 12-02-2013
Location: Tallinn
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If the PPBUS_AON is still 85ohms then it is too low. I had also 5V on USB-C and similar resistance on PPBUS_AON, in my case the problem was Q5800. After changing it 20V appeared. I don't have the machine anymore to make measurements though. -
Parts of the schematic and boardview match with 820-03285 as i found out now. Not great but better than wondering in the darkLeave a comment:
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Thanks!...Leave a comment:
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Measurements from a liquid damage mainboard, working screen but no backlight, ol means over limit.
At the same time asking if it is possible to identify missing component (marked with yellow), probably a resistor (if possible to make measurement on board?)...Leave a comment:
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Post the link where you bought the chip, the provided info was correct, seller sent the wrong part or you ordered incorrectly.Leave a comment:
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From the schematics of K051 (hopefully similar) PU301 LDO output has enable pin. It gets a value from resistor voltage divider, might be worth checking out.Leave a comment:
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From the picture i would say that the resistors to the right of the chip location are also toasted. The battery will not charge most likely. And there may be further damage which is not visual, the ec or charge controller.Leave a comment:
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https://[url]https://www.badcaps.net...*** SY8386BRHC[url]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/80630-ic-marking-codes-and-datasheets?postcount=12#post1538202[/url]
Qq*** SY8386BRHCLeave a comment:
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Boardview:...Leave a comment:
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With Vertyanov you choose the mainboard from the list and connect flex to the correct keyboard interface. (usually specified in ite.txt on the line with mainboard model).Leave a comment:
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Check if pinout matches, might be RT9610.
[url]https://pdf1.alldatasheet.com/datasheet-pdf/view/958056/RICHTEK/RT9610CGQW.html[/url]https://Check if pinout matches, mig...GQW.html[/url]Leave a comment:
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Hello Friend,
I have Asus X570UD motherboard for repairs with IC PU8701 burnt. Can you give me the number of this IC?
The Schematic diagram is not available. Please help. thanks -
Something like that:
[url]https://computer-systems.gr/products/k5-pro-20g/[/url]https://Something like that:<br /> [...pro-20g/[/url]Leave a comment:
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Re: Bios of Thinkpad T490 doesn't detect NVME
You're welcome.
Most likely somebody inserted clean ME region but did not configure the flex io part correctly....Leave a comment:
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Re: Lenovo 330S - 15ARR burnt component
Should be this:
[url]https://pdf1.alldatasheet.com/datasheet-pdf/view/776385/GMT/G9661-25ADJF6.html[/url]Re: Lenovo 330S - 15ARR burnt compon...JF6.html[/url]Leave a comment:
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Re: Bios of Thinkpad T490 doesn't detect NVME
Try the edited bios, the problem should be resolved. You can update me later again, it should not change the configuration. The me is not cleaned, so it is only suitable for this machine....Last edited by khaahk; 11-14-2023, 05:10 AM.Leave a comment:
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Re: Thinkpad T490 doesn't detect NVME
Post the bios dump of your machine to the appropriate subforum and post a link to it here. The configuration of flex io in bios might be incorrect.Leave a comment:
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Re: MSI KATANA GF-66, MS-15821 need resistor value
Thank You very much!Leave a comment:
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MSI KATANA GF-66, MS-15821 need resistor value
Hi
if someone has the mainboard at hand then i would be thankful if you could measure the resistance of PR318, near the keyboard backlight connector. Image attached.
Thank you!... -
Re: Broken power button (keyboard). How to jump start notebook?
Pin 26 to gnd should do it....Leave a comment:
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