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Connector problems for ac adapter - HP Pavilion Ze4805us Notebook

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Please change it with the same type.

Posted on Sep 24, 2009

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Hi i need help plz, i've my laptop do not power when i plug the ac adapter ther' is no ligth


You may have a DC connector problem:

Symptoms of a broken power jack
1. If you wiggle the power cord or the AC Adapter connector on the back of the laptop, the power LED and battery charge LED start to flicker.
2. Battery will not charge in the laptop.
3. Laptop runs fine off a charged battery.
4. With the AC Adapter connected the laptop appears to be dead.
No power LED or battery charge LED activity.
5. Laptop randomly powers off without any warning.

If your laptop is out of warranty, then you can fix the problem by re-soldering DC-IN jack on the system board. If it

May 23, 2011 | Dell Inspiron 2200 Notebook

Tip

AC adapter connectors


<a>HP, Compaq, Toshiba a</a>nd some others have problems with their AC adapter connectors on the motherboard. This is because they are not secured to the motherboard very well. They are just soldered to the board by the adapter leads. This puts stress on the leads whenever the plug is bumped or from plugging and unplugging the adapter. The adapter connector will, over time, become loose. The adapter will then not charge the battery, and when the battery becomes weak, the system will not power on. Some times, the unit will power on, but will shut off if the adapter plug is wiggled. If you continue to operate your system in this state, heat will build up from arcing at the ac connector and will burn the motherboard. If not repaired, the system board and CPU could be damaged beyond repair. Replacing the motherboard is then the only option<span> This could cost $350 and up. So the word is </span><span>GET IT REPAIRED EARLY</span>

on Apr 25, 2011 | Computers & Internet

Tip

Troubleshooting Laptop Power Failures - The AC Adapter


Symptom:

Wiggling the AC adapter cord causes the power status LED on the laptop to blink.


Diagnosis & Solution:

The problem could be that the copper wires inside the AC adapter cord became frayed or broken right where they enter the connector on the end of the AC adapter cord. The wires (a number of very thin conductors twisted into a heavier cable) are sized for the amount of power the laptop requires. As thin wires break and lose contact, all of the power must flow through the remaining conductors, leading to overheating, which can cause damage or be a safety hazard.

To make sure that this is the case, first test the output voltage from the connector on the end of the AC adapter cord using a digital multimeter set to measure DC voltage. While measuring, bend the AC adapter cord in various directions. If this causes the reading to jump betwwen zero & the nominal output voltage (written on the label on the AC adapter), then you know that you will need to replace the connector.

In order to get this fixed, you will need a new connector and basic soldering skills, or you can take it to an electronics shop for a cheap repair but get the price before agreeing. If you decide to repair it yourself, then you will have to find a replacement connector. Most of these connectors are easy to find and your local Radio Shack often has them in stock. Just bring your laptop along to make sure you get the right size. However, some laptops use a highly proprietary connector for which you can't easily find a replacement, in which case your best option is to find a failed AC adapter for your laptop model, cut the end off (with plenty of slack) and splice it onto your AC adapter's cable.

If you work on irregular surfaces (like a lap) and allow the cord to dangle, the wires may break just inside the connector due to pulling, despite the fact that the factory connector is encapsulated in molded plastic. You can carefully take apart the molded plastic with a razor knife to temporarily fix a connection, but it's smarter to replace the connector end as soon as you determine it is causing intermittent power failures.

Another possibility might be that the power receptacle in the laptop (where you plug the AC adapter cord) has failed. Sometimes the center pin of the connector breaks off, sometimes the solder joints on the main board fail, sometimes there's a break between the connector contacts and the motherboard contacts. In all these instances, you or the technician has to gain clear access to the laptop's motherboard to make the repair. In order to get this done, you might need clear disassembly instructions, as well as decent soldering skills. You could get a replacement connector usually for less than $10, but the repair charge can be several hundred dollars for some models if you take it to a local shop.

Please Vote for this Tip if you found it helpful.
M. Omran

on Oct 13, 2010 | Computers & Internet

1 Answer

I have network with 12 camera SNC_M300 in our buliding one of them have problem the image is appear and disappeare...pleas help me...what is the problem?


Hi!
Better check the cable connector of your video. Loose connection between the video jack from the ac power adapter was the most frequent reason for disappearing and reappearing videos of the camera.

If connection and the connectors were fine, then go check the output voltage from the ac power adapter if its still stable. Overheating AC power adapter may still work but mac cause also this problem. Additional fan may be needed if you are not planning of replacing the whole ac adapter.

Jan 01, 2011 | Samsung sncm300 Web Cam

1 Answer

The AC indicator light stays on for one second after plugging in the ac adapter. The laptop indicates that the improper adapter is being used. i have used the correct battery adapter and tried two known...


try unplug the battery and direct plug the AC power adapter, see what happen..........

and everything ok, that means your battery has problem.

if the laptop don't even turn on, that means the connector of your laptop (the power connect may have problem, THE IS THE WROSE CASE, YOU NEEED TO REPAIR YOUR LAPTOP)

Dec 29, 2009 | Dell Studio 1737 Laptop

1 Answer

Cannot find where you put the battery on the ECSI-Buddie A900


It seems that the battery is optional and external.

This is an excerpt of manual (you can get it here):

The system provides you an optional battery with two connectors (3 & 4-pin) on one side to the DeskNote and the other side to the AC adapter.
  1. Use the 3-pin connector cable to connect between the DeskNote and battery.
  2. Plug the AC adapter's connector into the 4-pin connector of the battery.
  3. Connect the power cord to the AC adapter and then to a wall outlet. "

Jul 21, 2009 | EliteGroup Computers & Internet

1 Answer

Inspiron 1300 battery


If you have replaced the battery with a NEW one and it doesn't charge, then you either have an issue with the AC adapter (If the sensing pin is bent or broken in the barrel of the connector, the battery will not charge) or the charger curcuit of the motherboard. If the issue occurs on a different AC adapter, then FLash the BIOS to current version. If battery still doesn't charge, then replace the motherboard

Jun 24, 2009 | Dell Inspiron 1300 Notebook

1 Answer

AC adapter not recognized


The AC adapter has a small wire in the center of the connector to the system. This sensing wire, if bent or broken will cause the error you mention.

Check the inside of the connector, since it is new, you can call Dell 800-624-9896 for a replacement adapter.

Sep 13, 2008 | Dell Inspiron E1505 Notebook

3 Answers

Laptop not charging


Unfortunately on most Compaq/HP mobile devices the AC pin is soldered directly onto the motherboard. If the pin is severely bent of broken off then a service is required, usually to replace the motherboard. Having the broken off like then can actually create a minor crack in the PCB. Sorry for the bad news.

Nov 17, 2007 | Compaq Evo N610C Notebook

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