Re: Need help finding specific capacitor
Yep :p i was attempting to remove the MOSFET you see next to it, but my hot air station couldn’t do it fast enough. I even had some kapton tape on the caps. End result: blown cap and still bad mosfet on the board
Dakay
Member
Last Activity: 06-22-2020, 08:22 AM
Joined: 04-17-2020
Location: Pomeroy
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Re: HP Omen 17 - DAG3CMB1CH0 - 19.5v; 0amps
AOE6930 is the MOSFET number. And I just found that out lol. Tried to get the MOSFET off and it took so long that a nearby capacitor blew. My hot air station is pants, so I just bought the Quick 861DW. Hopefully this will give me the heat I need.
Thank you so much for all your help!
AOE6930 datasheet:
[url]https://cdn.badcaps-static.com/pdfs/2c95894531ff72b08fbe0b10bda3e70c.pdf[/url]Re: HP Omen 17 - DAG3CMB1CH0 - 19.5v...ust found that...Leave a comment:
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Re: Need help finding specific capacitor
Yea I determined that they’re 100uf 25v. There are no schematics available, unfortunately. However i just bought some that are 100uf, 25v, and are a similar size on mouser. Hopefully they’re close enough to workLeave a comment:
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Re: HP Omen 17 - DAG3CMB1CH0 - 19.5v; 0amps
Here I've marked the defective MOSFET...Leave a comment:
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Re: HP Omen 17 - DAG3CMB1CH0 - 19.5v; 0amps
What else could I do?...Leave a comment:
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Re: HP Omen 17 - DAG3CMB1CH0 - 19.5v; 0amps
That worked! I found the defective MOSFET. Now the next challenge is finding a replacement ��Leave a comment:
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Need help finding specific capacitor
Just had these capacitors blow. Can anyone send a link to where i can buy these specifically? I just want to be positive i get the right ones. Thanks in advance!... -
2015 MacBook Pro Retina 820-3787
I'm stuck. Working on an 820-3787, 2015 MBP Retina. PPBUS_G3H does not have 12V, only about 2V. I discovered that mosfet Q9330 near the GPU was getting hot. I removed it and sure enough it restored my 12V. However, when I replaced it the short returned. I replaced all three mosfets in the area, Q9330, Q9331, and Q9361. No dice. So I resoldered and eventually replaced U9300. Still no luck. In fact now, even when I remove Q9330, there's a short on PPBUS_G3H. When I send power to it, it draws .2 amps, pin 1 on Q9330 sparks and gets hot, which is the UGATE from U9300, only showing about 1V on it.... -
Re: HP Omen 17 - DAG3CMB1CH0 - 19.5v; 0amps
So i jumped to the supply of the second mosfet. Sent about .75v which drew about an amp because .5v wasnt heating anything up. At 1 amp the GPU started to get warm ��Leave a comment:
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Re: HP Omen 17 - DAG3CMB1CH0 - 19.5v; 0amps
Ive tried like the dickens to get something to warm up. Haven’t felt anything. I have it connected to a DC power supply and it‘s set to 19.5 V, however it’s drawing basically zero amps, so nothing is going to get warm.
I suspect it’s a capacitor too, however, since a lot of things on the board are shorted, would that mean it’s more likely to be an IC?Leave a comment:
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Re: HP Omen 17 - DAG3CMB1CH0 - 19.5v; 0amps
Thanks for the reply. I can get that info for you later today. I did take some components off near the SSD, and it seemed to increase the volts on the supply of the first two mosfets from 0v to .9v. Whatever the issue is, it seems to be effecting the entire board, and i dont believe it’s the first two mosfets. Would the super i/o cause the entire board to short out? How would i test that?...Leave a comment:
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Re: HP Omen 17 - DAG3CMB1CH0 - 19.5v; 0amps
Attaching pictures of the motherboard...Leave a comment:
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HP Omen 17 - DAG3CMB1CH0 - 19.5v; 0amps
So I’ve been looking at this motherboard for a few days now. It’s an HP Omen 17” and the motherboard number is DAG3CMB1CH0. There are no schematics for this. I have it hooked up to my power supply, 19.5V, but isn’t drawing any amps. Im completely new to working on these gaming laptops. Does anyone have any idea or direction on what could be the problem?
It appears that power isn’t getting past the first two mosfets (with the exception of a current sensor near ssd which reads 18.5V, and a Capacitor that reads 6.0V) and everything looks shorted to ground,...Last edited by Dakay; 05-19-2020, 09:41 AM. -
Re: New Members - please post your introductions here
Hey! My name is Tim and I am new to motherboard repair. I don't have any formal education, however I do HVAC work on commercial buildings for a local university. I thought it would be interesting to learn how to repair motherboards, so I started investing in tools to test boards and to do micro soldering. I started buying broken video game consoles on eBay and locally through Facebook marketplace, fixing them, and reselling them. However, I have recently gotten more into laptops, as I find those far more interesting and I see...Leave a comment:
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