needing suggestions for determining if a laptop motherboard is receiving current
Hi Everyone;
I have a laptop disassembled and wish to determine if the motherboard is receiving current. Prior to disassembly, the laptop was not powering up at all. And, prior to that, it would only power up and stay powered on if the AC adapter chord is held up. Based upon these symptoms, I replaced the DC recharge port. The AC adapter is working fine and outputing the correct DC voltage as determined by my digital multimeter. If possible, I would like to use this new digital multimeter to determine if the laptop motherboard is receiving current following the DC recharge port replacement.
In closing, any help regarding this question will be greatly appreciated. I will look forward to hearing back from everyone.
Thanks so much.
George
I have a laptop disassembled and wish to determine if the motherboard is receiving current. Prior to disassembly, the laptop was not powering up at all. And, prior to that, it would only power up and stay powered on if the AC adapter chord is held up. Based upon these symptoms, I replaced the DC recharge port. The AC adapter is working fine and outputing the correct DC voltage as determined by my digital multimeter. If possible, I would like to use this new digital multimeter to determine if the laptop motherboard is receiving current following the DC recharge port replacement.
In closing, any help regarding this question will be greatly appreciated. I will look forward to hearing back from everyone.
Thanks so much.
George
SOLUTION
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George, what model laptop is it?
or post a picture, then we can look for specific info
or post a picture, then we can look for specific info
ASKER
Hi
My apologies.... The laptop is an Acer Aspire 3690. If you should need more information, please feel free to let me know. I will be monitoring this post throughout the weekend.
Many thanks once again for everyone's willingness to assist me with this question.
George
My apologies.... The laptop is an Acer Aspire 3690. If you should need more information, please feel free to let me know. I will be monitoring this post throughout the weekend.
Many thanks once again for everyone's willingness to assist me with this question.
George
george, i could not find a manual conataining motherboard picture - can you post one?
ASKER
Hi
Unfortunately, I have a friend of mine who has it at this weekend. He is helping me with the removal of the DC recharge port. At any rate, once I get it back, I will take a pic and upload it.
Thank you.
George
Unfortunately, I have a friend of mine who has it at this weekend. He is helping me with the removal of the DC recharge port. At any rate, once I get it back, I will take a pic and upload it.
Thank you.
George
ASKER CERTIFIED SOLUTION
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ASKER
Hi There;
Great suggestion Nobus!!! I should had thought of that, but, I didn't. If possible, could you give me an example or illustration on how to test these connectors to determine if 5V is there?
Thank you.
George
Great suggestion Nobus!!! I should had thought of that, but, I didn't. If possible, could you give me an example or illustration on how to test these connectors to determine if 5V is there?
Thank you.
George
SOLUTION
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ASKER
Hi Everyone;
Thanks for the information and links given. While everything given does make sense, I believe I need to get more experience with testing using a digital multimeter. Only then will everything really come together.
Thanks again for the information.
George
Thanks for the information and links given. While everything given does make sense, I believe I need to get more experience with testing using a digital multimeter. Only then will everything really come together.
Thanks again for the information.
George
george, FYI here is some of my "experience" :
i have a couple of very flexible wires 10-20 cm long, with a small alligator clip at each end in different colors.
so i connect say the black wire to the black VOM lead, and the red to the red VOM lead.
now i take a couple of needle pins in both alligator clips, which i can use to contact inside tiny plugs, or even perforate wire insulation to measure at the wire, without cutting it - or just clip them on a ground contact somewhere...
i have a couple of very flexible wires 10-20 cm long, with a small alligator clip at each end in different colors.
so i connect say the black wire to the black VOM lead, and the red to the red VOM lead.
now i take a couple of needle pins in both alligator clips, which i can use to contact inside tiny plugs, or even perforate wire insulation to measure at the wire, without cutting it - or just clip them on a ground contact somewhere...
ASKER
Thank you for you reply. If it would not be too much trouble, could you send a link illustrating the steps? I am just not sure of the exact points on the motherboard to carry out the testing. A multimedia link would be most preferred, but, any link with diagrams will work just fine as well.
Thanks
George