Inside? Yes. (If 'charger' is good)
Fuse?
No
Diagnostic flowchart:
A) AC adapter (Charger), has to be KNOWN to be good, before going on.
Used on a working laptop to see, or multimeter is used to check Voltage (DC)
The plug end that goes to the laptop, from the AC adapter, has a Center Hole, and a cylindrical outside metal shell.
The Function knob is set to DC Voltage. If just a symbol, the symbol is a dotted line over a solid line.
If more than one DC Voltage scale, the Function knob is set to the 0-50 Volt DC scale.
The Positive (Red) probe lead of the multimeter goes to the Center Hole, and the Negative (Black) probe lead of the multimeter, goes to the cylindrical outside metal shell.
You should be reading 19 Volts DC.
Also have an assistant gently wiggle the cable FROM AC adapter TO laptop, and the power cable TO AC adapter.
If there is a fluctuation on the reading, there is a broken wire, or wires, in one of those cables.
B) Check the DC Power Jack.
This is the jack on the laptop (DC_IN) that the AC adapter plugs into.
Has a Center Pin, and an inner cylindrical metal shell.
Battery removed, use an eraser on the end of a No.2 pencil, and see if you can GENTLY wiggle the Center Pin around.
ANY perceptible movement of the CENTER PIN, means replacing the DC Power Jack,
(By the way, is it an 8510p, or 8510w?)
http://www.alldcjacks.com/en/ppj052-laptop-dc-power-jack.html
Any movement of the rest of the DC Power Jack (Body), means replacing it; or may just mean the solder joints are cracked, and can be re-soldered.
C) AC adapter and DC Power Jack checks out?
Problem may be with Power MOSFET's on the motherboard, and associated MLCC's.
(Multi-Layer Ceramic Capacitor, and they are SMD/SMT just like the Power MOSFET's.
Surface Mount Device/ Surface Mount Technology)
Using HP pavilion dv6000 series, and Pavilion dv9000 series Notebook PC's, for an example,
http://mayohardware.blogspot.com/2010/04/important-parts-on-dv6000-and-dv9000.html
Or, it could be worse,
http://koti.kapsi.fi/jpa/stuff/pix/travelmate_6292/
Regards,
joecoolvette
SOURCE: HP Pavilion DV1000 not charging the battery
yes its u r mother board battery connector problem...in the mother board there is IC for sensoring DC supply..near the battery connector..plase check the IC is working properly with A logic probe.if it not working plaese replace the IC with a blower..
SOURCE: hp power supply failiure
Hi,
Ive worked on a friends G7000 series laptop, since it had the same symptoms you have with yours.
I tested it on my own(identical) working charger/PSU and still no charging.
After taking the motherboard out, i traced the fault to a short circuit FET (field effect transistor) with the PCB reference of PQ1, located right next to the connector for the DC power jack loom.(short from gate to source) The FET is made by Fairchild Semiconductors and its part number is FDS6675BZ. Being in the UK, i ordered the part from www.farnell.co.uk at a cost of 56pence. After changing this FET(which is there to control power) the laptop is working.
If you are not good with very intricate surface mount soldering, then i suggest you buy the component, take the motherboard out of the laptop(not too hard) and take them both down your local TV repair shop for them to check and change it(tell them the board reference PQ1).. shouldnt cost more than £20 or so been as they dont have to fault find.
Martin
martinkwashere at hotmail dot com
SOURCE: compaq HP 6715s Laptop not charging!
If you can determine that it is not the battery just going bad, then most likely it is a problem with the motherboard. I actually have this same problem, and have not been able to find a quick fix.
HP has a battery tester tool. If you are able to use this, then you are one step ahead of where my HP laptop is. I tried running this and it insisted that I did not have a battery installed, or that it was dead. If you have this same problem, then it looks like it might be time for a new motherboard.
In anycase, it might also be worth the time to try draining the battery completely and attempting to charge it back up. According to a few other sources, the laptop can sometimes get confused and think that a full battery is calibrated to be a low battery.
SOURCE: hp laptop unable to start
Hi if you flip your laptop may see that there is a squared cover with
two screws remove the two screws and the cover at this time you will
see the memory card it might be two or one remove the memory card make
sure not touch the connector side of the memory. if have pencil eraiser
clean the memory card connectors and clean it again with cotton bud
with alcohol let dry. Reinstall it back and turn on you laptop. if this
will not work your hard driver is the problem. Hope this info will help
you solve the problem.
HH
SOURCE: my hp compaq laptop charger is not working in the
First of all, you need to make sure your power adapter is providing enough power to both run the laptop & charge the battery. A very good way to do this is to compare your laptop voltage & ampere requirements (written on a sticker on the bottom of the laptop) with the voltage & ampere ratings of the power adapter. Voltages should be the same, or the power adapter's voltage about up to 0.5 volts more than the laptop's voltage rating. Amperage of the power adapter should be at least equal to or greater than the laptop's rating. It should never be less than the laptop's rating, or else the power adapter will be providing insufficient amperes to charge the battery. Of course, the power adapter's nominal amperage might be ok, but it degraded on usage. You can verify this by testing using a good or new power adapter.
If the battery did not charge using the new power adapter, take the battery off the laptop, & using a dry tooth brush, scrub in between the fins of the battery connector on the motherboard & on the battery it self, then put the battery back into the laptop & try again.
If this still did not resolve the problem, then the battery itself could be bad. Try it on another laptop, or try a good or new battery in your laptop.
If this did not work, there might be a possibility that the charging circuitry on the laptop's motherboard is defective & needs servicing. In order to do this, the laptop needs to be disassembled & the motherboard checked for defective/burned out components in the area near the DC jack. Any defective/burned out components found should be replaced, or you might need to replace the laptop's motherboard altogether.
DC Jack diagnosis:
1. Test power adapter for output voltage. Bend the power cable in various directions while doing this to be sure that there is no broken conductors in the cable.
2. If power adapter is Ok, connect it & see if the power LED on the laptop will glow when you jiggle the power connector in various directions. If yes, then the DC jack might be loose or damaged, & need to be either re-soldered or replaced.
3. If not, then disassemble the laptop. Remove any components that attach to the laptop's motherboard first (e.g. battery, hard drive, RAM, wireless card, optical drive, ... etc.)
4. Next, remove the keyboard & the LCD screen.
5. Finally, unscrew all screws that hold the upper cover & lower cover together so that you could gain access to the motherboard.
6. Inspect the solder points connecting the DC jack to the motherboard. Make sure that none of them is loose. If any, re-solder them.
7. Inspect the center pin in the DC jack. Make sure that it is not broken or loose. If it is, then you might need to replace the DC jack.
8. When you are done, re-assemble back the laptop.
345 views
Usually answered in minutes!
×