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Old 12-05-2019, 05:09 PM   #1
JG2018
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Default Troubleshooting Dell P69G motherboard not turning on

Hi all,

Have an issue with a P69G Dell motherboard.

Came in because wasn't turning on. When it comes in the shop, as soon as you plug the charger in, the light of the adapter goes off immediately and when you take it off from dc in, light comes back again so board was shorted.

Injecting 5V on DC in FPC on board, and this chip (Z22620IA?) circled was getting very hot (unfortunately couldn't find schematics nor boardview so don't know what is it and how does it works exactly).
Took off this ic, and now light on adapter stays once plugged in but still no boot on the computer.

The small 2 pads connected to the coil just next to it beeps in diode mode (don't know if it's normal because low resistance or the line is shorted).

What do you think?

Thanks for your inputs
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Old 12-05-2019, 11:59 PM   #2
mcplslg123
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Default Re: Troubleshooting Dell P69G motherboard not turning on

What is the marking code on your mobo??
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Old 12-06-2019, 04:44 AM   #3
JG2018
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Default Re: Troubleshooting Dell P69G motherboard not turning on

What you mean by mobo?
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Old 12-06-2019, 04:45 AM   #4
SMDFlea
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Default Re: Troubleshooting Dell P69G motherboard not turning on

Datasheet http://www.aosmd.com/res/data_sheets/AOZ2262AQI-10.pdf

The part is available on ebay and ali . AOZ2262QIA
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Old 12-06-2019, 04:46 AM   #5
SMDFlea
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Default Re: Troubleshooting Dell P69G motherboard not turning on

Quote:
Originally Posted by JG2018 View Post
What you mean by mobo?
mobo is a short word for motherboard .

Last edited by SMDFlea; 12-06-2019 at 04:47 AM..
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Old 12-06-2019, 04:53 AM   #6
techtiger
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Default Re: Troubleshooting Dell P69G motherboard not turning on

Quote:
Originally Posted by SMDFlea View Post
mobo is a short word for motherboard .
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Old 12-07-2019, 04:37 PM   #7
JG2018
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Default Re: Troubleshooting Dell P69G motherboard not turning on

You guys think i should just replace it?
What about those 2 pins beeping in continuity mode ("LX line")? Low resistance? Shorted line?
What would you try after that?
Thanks

Last edited by JG2018; 12-07-2019 at 05:09 PM..
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Old 12-10-2019, 03:48 PM   #8
JG2018
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Default Re: Troubleshooting Dell P69G motherboard not turning on

What do you think?
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