Good morning. I cleaned the ports. And still nothing. Both ports are showing nothing, so they are both dead/bad.
I will replace both ports and see what happens.
ATS-Byron
Member
Last Activity: 02-22-2025, 04:17 AM
Joined: 09-21-2022
Location: County of Barrhead, Alberta
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Bump 😁Leave a comment:
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I guess a bit more information would be nice.
When the analyzer is running both ports read this: CC1: 8mV CC2: 1,567mV V:4.850mV A:25mA or less
But port one doesn't show any data readings, and port two does. Not sure what format works, but the PD analyzer exported the .csv file attached.
Thanks....Leave a comment:
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Afternoon!
I finally took the time to hook up the PD analyzer to my computer and the offending board, but I have no idea of what I am looking for. The one port shows nothing when I start recording, and the second port shows information that means nothing to me. This is my first foray into PD data.
I have the CY4500 EZ-PD analyzer if anyone can help with that.
ByronLeave a comment:
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Bonzas[USER="237702"]Bonzas[/USER] Thanks much!Leave a comment:
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What kind of viewer is necessary for viewing these files?
Thanks.Leave a comment:
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Afternoon, I am waiting on the PD analyzer to show up as I have not had one before.
I don't know that I have the right schematics to check the onboard LDO rails?
But here are the voltages to ground for these:
VBUS: 4.987
ACP: 4.987
ACN: 4.987
CHRG_OK: 0.000
REGN: 4.984
ThanksLeave a comment:
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Bump.. 😊...Leave a comment:
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Ok, so all three fuses are good.
What would be the next step sir?
Thanks....Leave a comment:
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Hi, I just picked up the tester today. It shows 5.049V and 0 amps on both USB-C ports, and both ways on the power coming in. And that is with or without the battery plugged into the motherboard.
Thanks....Leave a comment:
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Hi, bump. Any idea on the numbers I posted?Leave a comment:
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[SIZE=16px][B][COLOR=#2ecc71]Sorry for the delay, been very swamped with work lately. Thank you for your help on this.[/COLOR][/B][/SIZE]...Leave a comment:
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Hi,
Has anyone had any experience with this series of laptop and can give me a couple ideas on where to find the parts or the steps for diagnosis?Leave a comment:
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Lenovo L15 Gen 3 type 21C7 AMD no charge, no power
Hi All,
I tried two different power adapters.
On the lines that are marked as 20V on the boardview, I only have 5V. But there is no light that comes on at all when this think is plugged in.
Customer stated that it just stopped charging and then when the battery died that was it.
I have a suspicion that it could be U7303 which I believe controls the voltage setting for the adapter? [B]Markings are RD LYBK CVEB[/B]
Any help would be appreciated!Hi All,
I tried two different power adapters.
On the lines that... -
Hi All, Electronics Technician running my own repair shop. Working on all sorts of board level repairs.Leave a comment:
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Re: Graphics card Schematics and Boardviews
Hi Babadoos, sorry for the late response! I just started to really look into the two cards I have. I do see the crack in one of them for sure. I am an electronics technician by trade with microscopes and microsolder tools. But this would be my first attempt at a graphics card or any board with that density of layers.
You have any other interesting or helpful experience on video card repair?
Thanks,
Byron...Leave a comment:
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Re: Graphics card Schematics and Boardviews
Hello All,
I am looking for the boardview for the GIGABYTE GeForce RTX 3080 Ti VISION OC 12GB.
If anyone has one that would be awesome.
I have two cards, both will have the fans spin up but no display and would like to fix them.
ByronLeave a comment:
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Re: New Members - please post your introductions here
Morning everyone,
Certified Electronics Technician. Got my certification finished in 2003, didn't do much more than hobby/on the side work since until last year I jumped with both feet into electronic repairs. Residential, commercial and ag electronics are keeping me busy.
Came for insights, and like minded people.
ByronLeave a comment:
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