Question about HP Compaq 6710b Notebook

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No power at 19.5 VDC jack

Was on battery power. Switched to off. Got to airport to recharge...nothing. Power supply is good. Computer does not recognize that power is available.

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  • antwarby Jan 09, 2009

    power supply is good but no power going through at all.

  • Anonymous Feb 17, 2009

    Exact Same problem. had BEst Buy check the power cable, and all is good. The DC input is faulty. It took about 15 minutes of reseating the power supply for it to be recognized.

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You will need to call our technical support line on 0845 20 20 118. Click Here for help

Posted on Dec 24, 2008

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My aceraspire4330 wont power on


you can try the power system check by doing the following:

To verify the symptom of the problem, power on the computer using each of the following power sources:
1. Remove the battery pack.
2. Connect the power adapter and check that power is supplied.
3. Disconnect the power adapter and install the charged battery pack; then check that power is supplied by
the battery pack.

If you suspect a power problem, see the appropriate power supply check in the following list:
"Check the Power Adapter"
"Check the Battery Pack"

Check the Power Adapter
Unplug the power adapter cable from the computer and measure the output voltage at the plug of the power
adapter cable. See the following figure
1. If the voltage is not correct, replace the power adapter.
2. If the voltage is within the range, do the following:
* Replace the System board.
* If the voltage is not correct, go to the next step.
NOTE: An audible noise from the power adapter does not always indicate a defect.
3. If the power-on indicator does not light up, check the power cord of the power adapter for correct
continuity and installation.
4. If the operational charge does not work, see "Check the Battery Pack"

Pin 1: +19 to +20.5V (Centre pin)
Pin 2: 0V, Ground (Shielding / Surround)


Check the Battery Pack
To check the battery pack, do the following:
From Software:
1. Check out the Power Management in control Panel
2. In Power Meter, confirm that if the parameters shown in the screen for Current Power Source and Total Battery Power Remaining are correct.
3. Repeat the steps 1 and 2, for both battery and adapter.
4. This helps you identify first the problem is on recharging or discharging.

From Hardware:
1. Power off the computer.
2. Remove the battery pack and measure the voltage between battery terminals 1(+) and 6(ground).
(Terminal 1 is closest to the edge, Terminal 6 is closest to centre)
3. If the voltage is still less than 7.5 Vdc after recharging, replace the battery.

To check the battery charge operation, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer. If the battery status indicator does not light up, remove the battery pack and let it return to room temperature.

Re-install the battery pack.
If the charge indicator still does not light up, replace the battery pack. If the charge indicator still does not light up, replace the DC/DC charger board.

Jan 20, 2015 | Acer Aspire One PC Notebook

2 Answers

Compaq CQ1-1225 AIO Wont Start at all. Removed all components


Suggestions;

Anti-Static wrist strap connected to ground source, and your wrist;

1) The jack your AC adapter plugs into on the motherboard, is the DC Power Jack.
Motherboard out of case, power to motherboard, take your multimeter and see if you are getting 19 VDC at the DC Power Jack's positive solder joint, on motherboard.

The center pin of the jack is Positive. (The inner cylindrical shell is Negative)
Follow the DC Power Jack's positive pin from the Center of the jack, to the motherboard.

You probably won't be able to touch your meter's Positive (Red) probe, to the DC Power Jack's positive pin under the jack; so touch it's solder joint on the opposite side of the motherboard.
(DC Power Jack should be soldered close to the motherboard, is why)

Of course also touch the Negative lead, (Black probe), of your meter, to the Negative, (Ground) solder joint for the DC Power Jack.

Getting 19 volts DC?

See if there is a cracked solder joint, for any of the DC Power Jack's pin connections to the motherboard.
ANY perceptible movement of the DC Power Jack on the motherboard, indicates a bad power jack, and may indicate a broken/cracked solder joint.
Center pin of DC Power Jack is loose? Bad DC Power Jack. Replace.

2) DC Power Jack is determined to be in good repair? No cracked/broken solder joints?
The next components in the power circuit on the motherboard, leading From the power jack, are P. MOSFET's.
Power MOSFET.

Power MOSFET Wikipedia the free encyclopedia

More information using a prior solution,

Dv6000 power light does not come on any more

Check the links given.

3) The last thing that concerns me, although I probably should have listed it first; is the AC adapter you are using.
Concern is that it doesn't have the 'intelligent chipset' that matches the Compaq CQ1-1225 All-In-One desktop PC's circuitry.

AC Adapter For Compaq Presario All in One CQ1 1225 Desktop PC Charger...


Just my thoughts..........
Regards,
joecoolvette

Jan 15, 2015 | HP Computers & Internet

1 Answer

COMPAQ V2030US POWER ON WON'T START


if there are no Power light,you battery might be broken or your power button is broken,i suggest you to charge your battery or take it to notebook center (if charging still failed,it might be the button)

Aug 27, 2012 | HP Compaq Presario V2000 Notebook

1 Answer

Have an Acer Aspire 5920G that is dead. The power supply seems OK with the green light on and ~19 VDC on the DVM when checked. no power light on computer when plugged in, with or without battery.


Hi,

It is possible that there is a problem with the connection from your power supply going to the main board of your laptop.
This is rather a technical problem and my best recommendation is to bring your laptop to a technician and have them check it.

Hope it helps!

Thanks!

Feb 02, 2011 | Acer Aspire 5920-6727 Notebook

2 Answers

Have an Acer Aspire 5920-6470 that is dead. The power supply seems OK with the green light on and ~19 VDC on the DVM when checked. no power light on computer when plugged in, with or without battery. ...


Try remove the battery and unplug it from the AC. Hold down the power button for 35-45secs. plug AC back and see if you can power it back on. If not, the motherboard is shot.

Dec 29, 2010 | Acer Aspire 5920-6727 Notebook

1 Answer

My hp pavillion dv5t-1000 power cord not working


Test your voltage on your power supply...There should be a voltage amount on the sticker on your power supply telling the output.Make sure yours is putting out the right amount.If this test good,your probally looking at a bad dc jack.Jacks need to be checked by a certified repair person.....Goodluck......If this is helpful ...Be so kind as to give a testimonial.....Thank you

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1 Answer

My charger won't charge. Computer detects plugged in but no charge


This is usually caused by an old or defective battery or possibly the power supply is a few volts too low to activate the charge indicator. It might be charging but not letting you know.
Try to run it off battery for a while (look at the battery life) and then plug it back to for a while then unplug it again to see if the battery life if higher than before.
To check the power supply you will need a volt meter that can read at least 20 vdc (most power supplies are 19 vdc). Put one lead of the meter on the inside of the plug that goes into the computer and the other pin on the outer silver part while the power supply is plugged into the wall outlet. You should read close to what the Output Voltage on the power supply says which should be on the sticker on the back or side of the black box part of the power supply.

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1 Answer

Acer Aspire 3690 Laptop is dead


Hello,

You may have a broken power jack in the laptop. Inspect the power jack and see if the center pin moves at all. It should be fairly solid. If you find a bad jack your local repair shop may be able to repair it or you can get a jack from Ebay and solder it yourself.

I hope this helps,
Buddy
www.ccl-la.com
Corporate Computer

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2 Answers

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replace only the power jack and clean the power supply board with some alcohol...you can find the jack in some electronic shop..

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2 Answers

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Often times when laptop won't power on, it's jack on the back where the power supply plugs in. It needs to be disassembled, soldered back together and that should fix it. Good luck!

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