Author Topic: fried laptop motherboard?  (Read 1799 times)

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Offline eightofiveTopic starter

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fried laptop motherboard?
« on: March 13, 2015, 03:43:18 am »
Recenly I've replaced the dc jack and burned traces off my laptop by following the advice I've been given. The link to the thread i made on how to replace the jack is bellow. I tried to power on the laptop after but nothing happened. Could my motherboard be fried now from the burned traces making a short or a dead battery? I've got a multimeter to help diagnose the problem.

https://www.eevblog.com/forum/repair/damaged-traces-need-help-re-wiring-new-dc-powerjack/msg626735/#msg626735
 

Offline eightofiveTopic starter

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Re: fried laptop motherboard?
« Reply #1 on: March 13, 2015, 04:44:24 am »
The dc powerjack pins are bridged with wire to where I sanded on the top of the motherboard and not the bottom of the board if that affects anything.
 

Offline Zucca

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Re: fried laptop motherboard?
« Reply #2 on: March 13, 2015, 08:06:31 am »
Use your multimeter.

What is the DC voltage at the cable plug? Once you are sure the power supply is working we can talk about the rest.
Check the resistance between + e - at the DC jack at the Laptop Mainboard. Do you have a short circuit?

If everything looks good plug the cable into the Laptop and maybe check if the DC voltage is incoming at the mainboard as expected...
Can't know what you don't love. St. Augustine
Can't love what you don't know. Zucca
 


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