<p>HP Pavilion DV4 Notebook, which delivers power and good times on the go. You could enjoy your favorite music with Beats Audio and chat face to face with a webcam that makes sure you look your best, even in low light. With the exclusive HP innovations, you will get automatic air conditioning for your laptop and help keep your data safe. Usually, handsome laptop needs handsome laptop charger,
laptop need power whenever and wherever it is being used, we need to keep it powerful.</p>
<p>18.5V 3.5A HP Pavilion DV4 charger has many kinds version in the mark, the original one made by HP Manufacturer; and the replacement one, it usually cheaper than the original one, but it could attract many attention. The replacement adapter usually works well as the original one. You just need to confirm three factors when you purchase an ac adapter for your laptop HP Pavilion DV4.</p>
<br/>
<p><strong>The power</p></strong>
<p>Please keep in mind, HP Pavilion DV4 laptop could be use at power condition 65Watt or less, more than it will disable your laptop, it is quite important.</p>
<br/>
<p><strong>The current or the voltage</p></strong>
<p>Since the power of the laptop equals the current mutiply by the voltage, if you could know the current/voltage, you will also get the voltage/current.
So you just need to confirm one of the two factors. For HP Envy DV4 laptop charger,it need output DC 18.5V 3.5A,it cofirm to work with your laptop.</p>
<p><strong>The DC Connecter size</p></strong>
<p>That is also quite important, bigger or smaller of the conncter size will be not used for your laptop.</p>
<p><strong>Tip for laptop charger</p></strong>
<p>To avoid overheating the AC adapter when powering the computer or charging the battery, use the AC adapter in a ventilated area, such as on a desktop or on the floor. Do not use the AC adapter in a poorly ventilated environment, such as inside a carrying case.</p>
<p><strong>Well Dispose the AC Adapter After You Use It</p></strong>
<p>Every electronical product has itself own lifespan, when the laptop charger can not work for you, please well dispose it and protect our environment. Since ac adapter will be water damage if it was thrown into the water and the end of the power supply lifespan, in order to protect our environment we need well dispose the power adapter after it used. At United Stated, many state has a law against the improper disposal of electronic equipment.</p>
Monday, September 16, 2013
Sunday, August 4, 2013
Knowing The Separate Components Of Your DV6 Laptop’s Power Supply
The first thing that you need to consider when you are looking at your power supply is the power strip that you plug into the wall. This will help regulate the amount of power that goes into your computer and prevent potentially fatal power spikes. Many people think that they can skip this component of their laptop power supply, but once they lose a valuable electronic device due to a power surge, they often never go without.
The next thing in line is the HP DV6 charger. This is another point that helps regulate the amount of power going into your computer. It will also convert the alternating current from your wall socket and turn it into direct current that your computer will use to power the laptop as well as to charge the battery.
The other well-known name for an AC Power Adapter is battery charger or laptop battery charger. This is an important device providing you with laptop mobility and frees you of restriction from using the power cord. Check the link at the end of this article to find the correct DV6 AC Power Adapter for your laptop.
Once the power enters your laptop through the female adapter, the point at which your power cord ends and your laptop begins, the power is routed to the computer power board. This piece of hardware serves two functions: one to send power to the mother board; and two to send power to your battery for charging.
Another often overlooked piece of hardware that is part of your laptops power supply is the computer cooling fan. The cooling fan makes sure that your computer doesn't overheat. Overheating problems will cause your computer to power off at odd times. The processor for your computer is usually the element that will generate the most heat in your computer so if you ever decide to get a stronger processor, it is very important that you check and make sure that the computer cooling fan you have installed in your laptop is strong enough to properly cool your laptop.
Wednesday, July 31, 2013
What Is The Difference Between 65Watt and 90 Watt AC Adapter
A watt which measures laptop power is a unit of measurement for power. This particular unit could measure power, or capacity to do work. Watt’s law states that one watt (1W) is how much power is in an electrical circuit where one ampere (1A), or amp, of current flows across a difference of one volt (1V). AC adapters convert electricity in alternating current form from one voltage to another. If you are looking at two AC adapters that both convert, say, 120V AC to 12V AC, it can be confusing to see different wattage ratings (such as 65W vs. 90W) for the two adapters.
An AC adapter with a rating of 90 watts with an output of 12 volts AC will have a maximum electrical current output of 7.5 amps (12V x 7.5A = 90W). Therefore, an AC adapter with a higher power rating (measured in watts) will be able to supply more current to a device it’s connected to.
While an AC adapter with a higher power rating will allow for faster battery charging times and increased electrical loads, an AC adapter with a lower power rating may suffice, especially where there is a concern about excess heat or higher cost, for example, HP pavilion DV6 AC Adapter, it has two versions: DV6 65Watt AC adapter and DV6 90Watt AC adapter, abd the higher power adapter is better than the 65Watt at sometimes, users who like playing games or some sofeware which need much power to support to run will need the more powerful version.
Similarly, since the power rating is considered to be a “maximum allowable power” indication, an AC adapter may be used to power devices that are rated at or below their power rating. If a device requires 12V and 3A (36W), either the 65W or 90W power supply may be used to power it.
Cost may also be a factor. Usually, since AC adapters with a higher power rating must be capable of delivering more electrical current for the same amount of voltage, the components required to assemble an AC adapter must be more robust than that of a lower-power-rated AC adapter.
AC adapters with higher power ratings also give off more heat than adapters with lower power ratings. If excess heat is a consideration, an adapter with a higher power rating may not be suitable for the application.
Try these Steps To Verify If An AC Adapter Is Working Properly
Use the following steps to determine whether the AC adapter is working properly.
Step 1 – Examine the adapter, power cord and computer for physical damage.
Check the AC adapter and cords for physical damage such as fraying or cuts. Also examine the power adapter for signs of damage or overheating.
Check the DC connector pin on the computer to ensure that the pin is not bent or broken. If the pin is broken, contact HP for technical assistance.
Check if there are no obstructions or any foreign material inside the DC connector.
Check if center smart pin is straight and not slanting inside the DC connector.
Step 2– Verify the wall outlet is functioning
1,Unplug your AC Adapter from the wall outlet and plug in a small lamp or other device that you know is working fine.
2,If you’re using a power strip, follow the same directions as in the last step for your power strip.
3,If any of the wall outlets are not providing power then test the lamp or other device on a different wall outlet.
Step 3 – Disconnect and reassemble the power cord and AC adapter
Remove and reconnect the power cord from the AC adapter.
Reconnect the power cord to the AC adapter. Be certain that the AC cable is fitted tightly in to the AC adapter inlet.
CAUTION:Adapter may shutdown and remain without output due to conditions that can trigger Overcurrent, Overtemperature, and Short circuit. To recover the adapter output, unplug the adapter from the AC inlet for approximately 5 seconds and plug again.
Step 4 – Connect the AC adapter to the PC
1,Remove the primary (and secondary) battery from the notebook PC.
2,Plug the AC adapter directly into a functioning wall outlet. Do not plug into a power strip, surge protector or secondary power source.
3,Verify that the LED on the AC adapter is lit when plugged into an AC wall outlet.
NOTE:Some AC power adapters do not have an LED.
4,Connect the other end of the AC adapter into the computer.
5,Verify that all power cord connections are secure. If the AC adapter connection to the notebook is loose, the connector or system board may be damaged and require repair. Contact HP service and support for further assistance.
If the AC adapter is defective and the computer is in warranty, contact the manufacturer. If the computer is no longer in warranty, Ordering an Replacement AC Adapter .
Step 5 – Verify that the notebook receives power from the adapter
NOTE:On some HP notebooks, the LED lights do not indicate a power state. For other HP notebooks, there may be multicolor LEDs that do indicate different power states. To determine the functionality of the LEDs on the notebook, please refer to the user guide which came with the notebook.
With the AC adapter connected, look for any LED lights on the front, top or side of the notebook PC. If an LED light is on then the AC adapter is functioning properly.
Some notebook PCs have a power indicator light in the area near power connector. If this light is on then the AC adapter is functioning properly.
Step 6 – Look for the battery icon in the system tray
Windows will indicate if the AC adapter is working properly by changing the battery icon in the system tray.
1, check the battery icon.
2,With the AC adapter connected to the PC, the battery charging icon indicates that the AC adapter is working properly and has enough power.
If the AC adapter is defective and the computer is in warranty, replace the AC adapter with the appropriate spare part. If the customer needs a replacement AC adapter and the computer is no longer in warranty, Ordering an Replacement AC Adapter .
3,The AC adapter does not have enough power to charge the battery and provide power to run the notebook PC at the same time.
Instruct the customer to use the power adapter that came with the notebook PC for better performance. If the customer needs a replacement adapter, replace another ac adapter.
Step 1 – Examine the adapter, power cord and computer for physical damage.
Check if there are no obstructions or any foreign material inside the DC connector.
Check if center smart pin is straight and not slanting inside the DC connector.
Step 2– Verify the wall outlet is functioning
1,Unplug your AC Adapter from the wall outlet and plug in a small lamp or other device that you know is working fine.
2,If you’re using a power strip, follow the same directions as in the last step for your power strip.
3,If any of the wall outlets are not providing power then test the lamp or other device on a different wall outlet.
Step 3 – Disconnect and reassemble the power cord and AC adapter
Remove and reconnect the power cord from the AC adapter.
Reconnect the power cord to the AC adapter. Be certain that the AC cable is fitted tightly in to the AC adapter inlet.
CAUTION:Adapter may shutdown and remain without output due to conditions that can trigger Overcurrent, Overtemperature, and Short circuit. To recover the adapter output, unplug the adapter from the AC inlet for approximately 5 seconds and plug again.
Step 4 – Connect the AC adapter to the PC
1,Remove the primary (and secondary) battery from the notebook PC.
2,Plug the AC adapter directly into a functioning wall outlet. Do not plug into a power strip, surge protector or secondary power source.
3,Verify that the LED on the AC adapter is lit when plugged into an AC wall outlet.
NOTE:Some AC power adapters do not have an LED.
4,Connect the other end of the AC adapter into the computer.
5,Verify that all power cord connections are secure. If the AC adapter connection to the notebook is loose, the connector or system board may be damaged and require repair. Contact HP service and support for further assistance.
If the AC adapter is defective and the computer is in warranty, contact the manufacturer. If the computer is no longer in warranty, Ordering an Replacement AC Adapter .
Step 5 – Verify that the notebook receives power from the adapter
NOTE:On some HP notebooks, the LED lights do not indicate a power state. For other HP notebooks, there may be multicolor LEDs that do indicate different power states. To determine the functionality of the LEDs on the notebook, please refer to the user guide which came with the notebook.
With the AC adapter connected, look for any LED lights on the front, top or side of the notebook PC. If an LED light is on then the AC adapter is functioning properly.
Some notebook PCs have a power indicator light in the area near power connector. If this light is on then the AC adapter is functioning properly.
Step 6 – Look for the battery icon in the system tray
Windows will indicate if the AC adapter is working properly by changing the battery icon in the system tray.
1, check the battery icon.
2,With the AC adapter connected to the PC, the battery charging icon indicates that the AC adapter is working properly and has enough power.
If the AC adapter is defective and the computer is in warranty, replace the AC adapter with the appropriate spare part. If the customer needs a replacement AC adapter and the computer is no longer in warranty, Ordering an Replacement AC Adapter .
3,The AC adapter does not have enough power to charge the battery and provide power to run the notebook PC at the same time.
Instruct the customer to use the power adapter that came with the notebook PC for better performance. If the customer needs a replacement adapter, replace another ac adapter.
Friday, July 26, 2013
Laptop AC Power Adapter DC Connector Failure
A common weak spot on most laptops is the DC power jack. If someone trips on the wire while you have the power adaptor plugged into your laptop, chances are that the power jack will get damaged.
On most laptops the DC power jack is soldered directly to the motherboard and there are only three or four small pins holding it in place. Unfortunately that makes the power jack quite weak. Any sideways pulling of the DC power cord while attached to the laptop will usually dislodge at least one of these pins, breaking the solder around it. Modern laptops use quite a lot of power, from about 70W to 120W or even more. The bad electrical connection from the dislodged pin will cause sparks and heating that will eventually burn a hole through the motherboard and can even be a fire hazard. The usual signs of that are:
The battery is not charging properly or stays at half charge despite that you have been using the power adaptor.
The screen flickers (the brightness is changing) while the power cord is plugged in. This is caused by the laptop switching between DC power (screen is brighter) and battery power (screen is dimmer).
The DC plug gets hot after a few minutes of use and may even smell of burning.
There are “scratching” sounds coming from the DC jack.
All of these symptoms are caused by poor contact between the DC power jack and the motherboard.
There are several models of laptops that are resistant to this problem. All older Dell laptops that use the three pin DC power jack are usually not affected, probably because the power cord pops out easier. Also some older Sony Vaio models, and 1-2 Toshiba models where the DC jack is attached to the case away from the motherboard and all new Apple laptops, where the DC power cord is magnetically attached to prevent any damage to the laptop if someone trips on it.
To test for broken power jack: 1,Remove the battery 2,Plug in the ac adapter 3,Start the laptop 4,Gently wiggle the DC power plug on the back of the laptop
If your laptop shuts down abruptly (looses power), find a repair shop that can resolder or change the DC power jack as soon as possible, as the motherboard has already started to burn around the dislodged pins. Some repair shops will offer to replace the whole motherboard, however the price of a new motherboard together with the labour charge for installing it will usually be greater than the current value of your laptop and can go well over a thousand dollars.
Replacing or re-soldering the DC power jack is not an easy job too. It usually takes two to three hours depending on the damage and the model of the laptop. To reach the power jack, the laptop has to be completely disassembled and the motherboard taken out. Then if the board around the dislodged pin is badly burned, the power jack has to be un-soldered and the board has to be patched. After that a different power jack has to be installed, attached to the case of the laptop and connected with wires to the motherboard, as the patched board wouldn’t be strong enough to support the original type of power jack that was soldered directly to the board.
On most laptops the DC power jack is soldered directly to the motherboard and there are only three or four small pins holding it in place. Unfortunately that makes the power jack quite weak. Any sideways pulling of the DC power cord while attached to the laptop will usually dislodge at least one of these pins, breaking the solder around it. Modern laptops use quite a lot of power, from about 70W to 120W or even more. The bad electrical connection from the dislodged pin will cause sparks and heating that will eventually burn a hole through the motherboard and can even be a fire hazard. The usual signs of that are:
There are several models of laptops that are resistant to this problem. All older Dell laptops that use the three pin DC power jack are usually not affected, probably because the power cord pops out easier. Also some older Sony Vaio models, and 1-2 Toshiba models where the DC jack is attached to the case away from the motherboard and all new Apple laptops, where the DC power cord is magnetically attached to prevent any damage to the laptop if someone trips on it.
To test for broken power jack: 1,Remove the battery 2,Plug in the ac adapter 3,Start the laptop 4,Gently wiggle the DC power plug on the back of the laptop
If your laptop shuts down abruptly (looses power), find a repair shop that can resolder or change the DC power jack as soon as possible, as the motherboard has already started to burn around the dislodged pins. Some repair shops will offer to replace the whole motherboard, however the price of a new motherboard together with the labour charge for installing it will usually be greater than the current value of your laptop and can go well over a thousand dollars.
Replacing or re-soldering the DC power jack is not an easy job too. It usually takes two to three hours depending on the damage and the model of the laptop. To reach the power jack, the laptop has to be completely disassembled and the motherboard taken out. Then if the board around the dislodged pin is badly burned, the power jack has to be un-soldered and the board has to be patched. After that a different power jack has to be installed, attached to the case of the laptop and connected with wires to the motherboard, as the patched board wouldn’t be strong enough to support the original type of power jack that was soldered directly to the board.
Monday, July 22, 2013
DC Power Jack Repair Guide – Do-it-Yourself Instructions
This guide will explain how to repair a failed or loose DC power jack on a HP laptop computer yourself, some of us may think that is the hp smart adapter question if the charger can not fit the laptop DC jack well, few of us may know the question could be also from the laptop.
"Disclaimer: I've made these instructions only for people experienced with soldering and repairing computers. If you don’t feel comfortable doing this job, please do not open the laptop or you can permanently damage your computer. Take your laptop to a professional repair shop instead."
"For this repair you’ll need the following tools."
Soldering iron or soldering station. I use Weller WES51 soldering station and for this job I set temperature to about 800-850°F.
I use high-tech rosin core silver-bearing solder from Radioshack with diameter 0.022″ ( Catalog #: 64-013 ). I think standard rosin core solder will work just fine.
Desoldering pump for removing solder around component leads. I use Edsyn Soldapullt pump, model DS 017.
99% isopropyl alcohol and tooth brush for cleaning the motherboard from flux.
A new DC power jack, you can find a cheap one here.
As you see on the following picture, the solder drop on the positive terminal looks different than on other three contacts. That’s where the problem is. The positive pin is not making a good contact with the motherboard and because of that power to the laptop cuts off when I move the power plug inside the power jack.
I’m going to solder the power jack from the motherboard, clean contacts on both power jack and motherboard and then solder it back in place – this is the proper way fixing the power problem.
Start desoldering process with adding some new fresh solder to all three contacts. This will make old solder more flowable, easier to remove.
While heating one of the contacts, remove the solder from this contact using the desoldering pump. Repeat the same steps with all power jack contacts until you remove as much solder as possible.
Grab the power jack and carefully try removing it from the motherboard. Most likely you will not be able to remove the power jack the first time because there will be some solder bridges left between the contacts and traces on the motherboard. Carefully wiggle the power jack without applying any significant force and at the same time heat up all contacts one by one. This will help you to remove the power jack.
The DC power jack is almost removed from the motherboard.
Be careful. Inside the positive hole there is a copper sleeve which connects the terminal on one side of the motherboard with the traces on the other side. If you are removing the power jack with force, you can pull the sleeve from the hole. You don’t want to do that.
UPDATE: If you accidentally removed the internal sleeve, check out this post: How to fortify damaged power jack connection.
So, do not apply any force and make sure the solder is melted when you are removing the power jack. I hope you understand what I’m talking about.
After the power jack is removed, clean all oxidized contacts with a knife.
Apply a fresh coat of solder to all contacts on the power jack.
The power jack terminals will look dirty because of melted flux.
You can remove the flux using the tooth brush and alcohol. It’s not necessary but it will make your job looking clean.
Apply a fresh coat of solder to all power jack terminals on both sides of the motherboard.
This side has been coated.
And this side has been coated too.
Now you can install the power jack back on the motherboard. Put something under power jack so there is no gap between the jack and the motherboard. Now you are ready to solder the jack back in place.
Solder all power jack pins.
The job is done and the laptop DC power jack is fixed. B-E-A-utiful! Now just install the motherboard back into the laptop and you are done.
"Disclaimer: I've made these instructions only for people experienced with soldering and repairing computers. If you don’t feel comfortable doing this job, please do not open the laptop or you can permanently damage your computer. Take your laptop to a professional repair shop instead."
"For this repair you’ll need the following tools."
I’m going to solder the power jack from the motherboard, clean contacts on both power jack and motherboard and then solder it back in place – this is the proper way fixing the power problem.
Be careful. Inside the positive hole there is a copper sleeve which connects the terminal on one side of the motherboard with the traces on the other side. If you are removing the power jack with force, you can pull the sleeve from the hole. You don’t want to do that.
UPDATE: If you accidentally removed the internal sleeve, check out this post: How to fortify damaged power jack connection.
So, do not apply any force and make sure the solder is melted when you are removing the power jack. I hope you understand what I’m talking about.
Friday, July 19, 2013
Some Common Issues In Laptop Chargers That You Should Take Care
There are some electronic devices which conk off without any advance warning whatsoever. The device would be in use and will be working well when something would go wrong and it would never start again. Thankfully, laptop chargers do not belong to this category. Instances of the charger simply conking off without any advance warning. Are very rare? More often than not, people realize that they did observe that something was wrong with the laptop chargers but had ignored the same. If you want to avoid complications, just focus on the following issues relating to laptop chargers when you are using the same.
Overheating
This is an obvious indication that something is or can go wrong with your charger. Overheating is a clear indication that you are not using the HP P/N 463957-001 charger as it is supposed to be used. The processor in your laptop has a fan designed specifically to keep it cool. This is because the manufacturers are aware that it is impossible to prevent the processor from heating up. However, they do not anticipate any such issue with chargers. The fact that your charger is overheating without any obvious issue means that you should focus on how you use it and how it is being maintained.
Inefficient Performance
After overheating, this is the most common issue that helps people discover that something is wrong with the HP laptop P/N 463957-001 charger. Of course, this also indicate that the battery of your laptop may be conking off. Laptop batteries are designed to last for years at a stretch. Even with rough usage, you should not face any problems with batteries in a span of just 6 to 8 months after purchase of the laptop. However, there is a possibility of chargers conking off in such a short period of time.You would be the unlucky if the battery is to be blamed for lack of proper charging of the laptop. However, you have the option of getting the battery replaced if it is the still under warranty. Laptop chargers do not come with a long warranty and you may have no option but to replace the same by paying for new chargers out of your pocket.
Irregular Performance
Laptop chargers that do not start charging the computer as soon as they are inserted into the slot are best checked as early as possible. This may indicate a loose contact inside the charger that may be preventing the device from operating properly. People face this problem with the 463957-001 charger immediately after it has been dropped or handled badly. These devices are strong and hardy but there is absolutely no guarantee that the charger will continue performing properly after such an incident.There is a simple and fundamental rule that you must follow if you want to tackle problems with laptop chargers before they become very serious. Never ever delay the process of finding a solution. The moment you see something is wrong with the charger, you should proceed ahead and try to find a solution for the same. Ignoring the problem can cause issues with not just the charger in question but the laptop as a whole.
Overheating
This is an obvious indication that something is or can go wrong with your charger. Overheating is a clear indication that you are not using the HP P/N 463957-001 charger as it is supposed to be used. The processor in your laptop has a fan designed specifically to keep it cool. This is because the manufacturers are aware that it is impossible to prevent the processor from heating up. However, they do not anticipate any such issue with chargers. The fact that your charger is overheating without any obvious issue means that you should focus on how you use it and how it is being maintained.
Inefficient Performance
After overheating, this is the most common issue that helps people discover that something is wrong with the HP laptop P/N 463957-001 charger. Of course, this also indicate that the battery of your laptop may be conking off. Laptop batteries are designed to last for years at a stretch. Even with rough usage, you should not face any problems with batteries in a span of just 6 to 8 months after purchase of the laptop. However, there is a possibility of chargers conking off in such a short period of time.You would be the unlucky if the battery is to be blamed for lack of proper charging of the laptop. However, you have the option of getting the battery replaced if it is the still under warranty. Laptop chargers do not come with a long warranty and you may have no option but to replace the same by paying for new chargers out of your pocket.
Irregular Performance
Laptop chargers that do not start charging the computer as soon as they are inserted into the slot are best checked as early as possible. This may indicate a loose contact inside the charger that may be preventing the device from operating properly. People face this problem with the 463957-001 charger immediately after it has been dropped or handled badly. These devices are strong and hardy but there is absolutely no guarantee that the charger will continue performing properly after such an incident.There is a simple and fundamental rule that you must follow if you want to tackle problems with laptop chargers before they become very serious. Never ever delay the process of finding a solution. The moment you see something is wrong with the charger, you should proceed ahead and try to find a solution for the same. Ignoring the problem can cause issues with not just the charger in question but the laptop as a whole.
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