Question about Intel Motherboard

1 Answer

HP Compaq laptop won't charge/power from AC due to blown fuse

Dear someone,

My laptop would not power nor charge from AC (boots with charged battery though), after a suspected damage by a non-HP power supply unit.

I got the original HP PSU, but it won't boot either. Something's got toasted inside the MB.

Here is the picture of power socket, and an apparently blown fuse:

http://img411.imageshack.us/img411/2811/img0847r.jpg

Question: can I shorten the fuse's pins to retry the powering on? Where should I start from and continue? I am a noob with an eager want self-learn and to go ahead and learn in electronics and circuitry repairs.
I'm already self-learning on my photocameras' problems :) Sufficient theoretical knowledge in electrics.

Thanks in advance;

-- 
sledge

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Intel Master
  • 11,800 Answers

First of all there are no fuses in a pc's motherboard, whatever the type.
In your picture the apparently faulty part is a filtration coil (L1 - the L refers to an impedance/coil) situated on the power like coming from the Jack1  - where the charger plugs in.
If your laptop :
1 - works just fine with a battery
2 - doesn't power on when plugged in the mains and without without the battery
3 - doesn't charges the battery
then , since the charger is good, the power circuit is cut after the the plug-in power jack, on the motherboard.
Use an ohmmeter to test the power circuit for continuity, starting from the jack.
So yes your busted impedance is most likely the failed part. Jumping it would fix it, but will leave the laptop without any protection against parasites coming thru the power line - use it from now on only plugged thru a surge protector at least an off line UPS at best.

Posted on Jun 03, 2010

2 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

  • 33 Answers

SOURCE: HP Compaq laptop won't charge/power from AC due to blown fuse

Hi there,

There's plenty of causes why your laptop would not power up from the AC adapter and won't charge the battery. Here are some possible causes and solutions to this problem:

Number one, if it's on battery power, the battery is dead or the battery is bad and number two the AC adapter could be bad. Let's roll out number one.

1. Take out the battery, remove main supply, hold power button down for 30 seconds. This will drain the charges in your

battery. Put only power supply in, do not put battery in, turn laptop on, put the battery in.

2. If the solution in no.1 doesn't solve the problem, pull the battery out, keep the battery out of the laptop for this test.

Take your AC adapter and check the voltage with a voltmeter. What you want to test for is voltage. Put the meter at 20

volts DC and take the tip, the power jack tip of your AC power adapter. You hold the black, (the negative part) of your

voltmeter on the outside of the power jack tip of your AC adapter and you put the red (the positive part) of your voltmeter

in the hole in the inside of the power jack tip of your AC adapter. Be very careful not to touch the red and the black part of

your multimeter and the power jack tips of your AC adapter together, otherwise it will create a short circuit.

After doing these procedures, if your AC adapter is good it will output a voltage which ranges from 18 to 19V DC on your

voltmeter, depending on the voltage that puts out on your AC power adapter. If your voltmeter doesn't show any voltage,

probably your AC power adapter is bad or damaged. But if your voltmeter shows up voltage, then we have to go to the

next possible cause why your laptop won't power on.

3. The dc jack on your laptop might be bad, if the dc jack on your laptop is bad or not making a connection to the

motherboard then it look the battery is bad as well, because the battery is now not holding a charge or even taking a

charge. Also, even if your AC power adapter is good and when you insert it to the dc jack in your laptop it could not power

up the laptop because the dc jack is not making a connection to your laptop motherboard in other words the dc jack might

got loose, that's why it's not making any connection to the motherboard. The only way to solve this is that you have to

disassemble your laptop, and take the laptop motherboard out and look where the dc jack is connected. After you found it,
take a file tool and file off a spot on the motherboard where you can reattach the power jack and use a wire to reattach

the power jack to the motherboard.

Hope you find this answer helpful. God bless.

http://compunics.blogspot.com/2010/06/podnutz-high-definition-laptop-repair.html





Posted on Jun 23, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

My Laptop does not turn on anymore... When i insert the ac adapter a the power light flash instantly and gone... but my laptop doesnt charge or turn on...:( i have tried replacing the adapter but...


Take the battery out and run directly from the ac adapter. If it works then the battery is blown up. But if nothing happens and there is no activity then motherboard fuses may have blown or worse the motherboard is faulty. Look for another laptop in that case.

Mar 16, 2015 | HP Compaq 2510p Notebook PC

1 Answer

T will indicate charging but it won't charge actor


If the laptop works only off the Power Cord and the batteryis not charging, then the battery is dead.

To check to make sure the Power Cord is working remove the battery and let thelatop run for 10 minutes or so.

To check to see if the battery has any charge left in it put the battery in andremove the power cord. If it won't boot or shuts down then the battery is deadand needs to be replaced if the power cord is ok.

Apr 23, 2012 | HP Compaq nc6400 Notebook

1 Answer

HP Compaq laptop won't charge/power from AC due to blown fuse


Hi there,

There's plenty of causes why your laptop would not power up from the AC adapter and won't charge the battery. Here are some possible causes and solutions to this problem:

Number one, if it's on battery power, the battery is dead or the battery is bad and number two the AC adapter could be bad. Let's roll out number one.

1. Take out the battery, remove main supply, hold power button down for 30 seconds. This will drain the charges in your

battery. Put only power supply in, do not put battery in, turn laptop on, put the battery in.

2. If the solution in no.1 doesn't solve the problem, pull the battery out, keep the battery out of the laptop for this test.

Take your AC adapter and check the voltage with a voltmeter. What you want to test for is voltage. Put the meter at 20

volts DC and take the tip, the power jack tip of your AC power adapter. You hold the black, (the negative part) of your

voltmeter on the outside of the power jack tip of your AC adapter and you put the red (the positive part) of your voltmeter

in the hole in the inside of the power jack tip of your AC adapter. Be very careful not to touch the red and the black part of

your multimeter and the power jack tips of your AC adapter together, otherwise it will create a short circuit.

After doing these procedures, if your AC adapter is good it will output a voltage which ranges from 18 to 19V DC on your

voltmeter, depending on the voltage that puts out on your AC power adapter. If your voltmeter doesn't show any voltage,

probably your AC power adapter is bad or damaged. But if your voltmeter shows up voltage, then we have to go to the

next possible cause why your laptop won't power on.

3. The dc jack on your laptop might be bad, if the dc jack on your laptop is bad or not making a connection to the

motherboard then it look the battery is bad as well, because the battery is now not holding a charge or even taking a

charge. Also, even if your AC power adapter is good and when you insert it to the dc jack in your laptop it could not power

up the laptop because the dc jack is not making a connection to your laptop motherboard in other words the dc jack might

got loose, that's why it's not making any connection to the motherboard. The only way to solve this is that you have to

disassemble your laptop, and take the laptop motherboard out and look where the dc jack is connected. After you found it,
take a file tool and file off a spot on the motherboard where you can reattach the power jack and use a wire to reattach

the power jack to the motherboard.

Hope you find this answer helpful. God bless.

http://compunics.blogspot.com/2010/06/podnutz-high-definition-laptop-repair.html





Jun 03, 2010 | HP Compaq Motherboard

1 Answer

My hp 2100 presario laptop in not booting


Startup problems
If the notebook doesn’t respond when you turn it on
• Connect the AC adapter.
• Reset the notebook by inserting the tip of a paper clip into the reset button on the
bottom of the notebook. Then press the power button to turn it on.
• If the notebook still doesn’t respond, remove the battery and AC adapter, remove
any PC cards, and undock the notebook if docked. Then plug in the AC adapter
again, and reset the notebook using the reset button.
If the notebook won’t boot from battery power
• Make sure the battery is properly inserted and fully charged. Check the battery
charge by removing it and pressing the pad on the side of the battery. The lights
show the charge level.
• If available, try another battery.
If the notebook won’t boot from the floppy disk drive
• Make sure the floppy disk drive is selected as the boot device.
• If you’re using a USB floppy drive, use the BIOS Setup utility to make sure
Legacy USB Support is enabled. If your notebook also has a built-in floppy
drive, use the BIOS Setup utility Boot menu to make sure the USB floppy drive
is the first device under Removable Drive.
If the notebook stops responding after booting
Check whether you are connected to a TCP/IP network with no DHCP server. This
can cause a long delay at startup because DHCP is enabled. Contact your network
administrator to determine the proper TCP/IP configuration

***IF THE NOTEBOOK HAS POWER BUT WONT BOOT INTO OPERATING SYSTEM-
Press F2 when you start it to enter BIOS to check your BOOT ORDER to make sure your HD is listed first on the list.
If it is not listed remove it and reinsert it and then try again.. GREAT LUCK!! Please Rate Me, K? Thanks- Lucky4lynn2

Mar 06, 2010 | HP Compaq Presario 2100 Laptop

2 Answers

Hp compaq nx7400 - battery died and power cord will not turn comp


Some laptops will not power up with a completely discharged or faulty battery. Remove the battery from the laptop, plug in the power cord and try to boot the system. If the system boots, your battery needs to be replaced. Replace your battery as soon as you can, it's not a good idea to run the laptop for extended periods with an open battery bay.

May 07, 2009 | HP Compaq Presario V2000 Notebook

1 Answer

COMPAQ V2000 WILL NOT POWER UP WITH DC/ADAPTER OR BATTERY


Hve u tried a differnt adaptor , the adaptor might be blown too ,try replacing the adaptor , also check for the power cord if it has any kinks in it which may be interrupting the power supply , since the adaptor 18.5 v 3.5 a is the most common of all hp adaptors u should find one to try .

Aug 27, 2008 | Compaq Presario R3000 Notebook

1 Answer

Battery shows 50% charge, but Laptop powers off


The battery is most likely bad. have you tryed another one?

May 23, 2008 | HP Compaq Presario V2000 Notebook

Not finding what you are looking for?
Intel Motherboard Logo

285 people viewed this question

Ask a Question

Usually answered in minutes!

Top Intel Computers & Internet Experts

Tony

Level 3 Expert

2600 Answers

David
David

Level 3 Expert

778 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

Are you an Intel Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...