Question about Compaq Presario CQ50115NR Laptop AC Adapter 19V474A(74mm*50mm) 90W

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How to make laptop work without battery - just on AC adaptor for cq-50 115nr compaq presario

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

tom19511
  • 1601 Answers

SOURCE: Compaq Presario 2100, remove keyboard

Here you go
All you need is here.
http://h10032.www1.hp.com/ctg/Manual/c00246219.pdf

Posted on Oct 23, 2007

  • 188 Answers

SOURCE: Compaq Presario 700 won't power on

These are prone to broken power jacks that short out components on the mainboard. My shop saaw a lot of these come in dead like this and sometimes we could get them going again with a lot of mainboard work, but it seems they keep breaking.

I would save your money for another laptop considering the lousy reliability record these models have.

Posted on Dec 26, 2007

sharad84
  • 67 Answers

SOURCE: compaq presario laptop blinking power button

REMOVED BATTERY AND CHECK ONLY IN AC MODE
IF ITS START PRESS F8 AFTER BOOTING AND OPEN IN SAFE MODE

Posted on Jun 21, 2008

djhollewood
  • 54 Answers

SOURCE: Laptop won't turn on, battery won't charge

I had a similar issue with the Armada M700 from Compaq. Never did figure it out exactly. But I do know this. When you unplug the power chord and take out the battery and plug the power chord back in while the battery is out usually for some reason it turned on allowing me to replace the battery which would then begin charging. Your problem interests me because I can really relate!

Posted on Jan 14, 2009

  • 1 Answer

SOURCE: Compaq Armada 7400 AC Adaptor Pins

the part number for 7400 power adaptor is 204434.001

Posted on Aug 28, 2009

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1 Answer

My usb controller for windows 7 just stoped working


w7

First, please disconnect all USB devices and then perform the following steps:


Click "Start" button, type "devmgmt.msc" (without quotation marks) in the "Search" bar and press "Enter". Click "Continue" if necessary.



In Device Manager, double click to expand "Universal Serial Bus controllers", right click on the Host Controller, click "Uninstall" and click "OK".



Repeat the step 2 to uninstall all items under "Universal Serial Bus controllers".



Then, restart your computer and Windows 7 will reinstall all USB controllers automatically.


hope it helps

Oct 29, 2012 | Compaq Presario CQ-61 Laptop Universal AC...

1 Answer

Battery cq 40 not charging


replace new battery, or...try to install new windows

Sep 08, 2012 | HP Compaq Presario CQ40-330TU

1 Answer

Compaq M2000 turns on using charged laptop battery but doesn't charge or turn on when using power adaptor, with or without the laptop battery


1) The AC adapter should ALWAYS be plugged into the laptop FIRST, then plugged into AC power. If not, this could create a voltage spike.

2) Let's look at the DC Power Jack, for the Compaq Presario M2000 series of Notebook PC's,

http://www.notebookparts.com/products/description.php?II=9741

The DC Power Jack is mounted to a removable circuit board.
Enlarging the view of the jack, shows us there is an Inductor.

The small 'can' standing up on the power board. This chipset could have gone south. (Bad)

How to know? Replace it, or dig out your dual trace oscilloscope. See if the Inductor works.

Could also just be cracked solder joints, of the DC Power Jack, TO that small circuit board. Solution would be to resolder it/them.

[ I WOULD however, search for a BETTER price, than listed in the link above, IF available ]

DC Power Jack is in good shape, soldered tight to the motherboard, and ruled out as the problem?
(Since you know the AC adapter is good)

Then the problem would be the Inductor on that power board, or power correcting chipset.

What one is it? Dunno.
DO KNOW is has J leads on the bottom.
CAN give examples, and perhaps you can identify using them.

1) https://docs.google.com/viewer?a=v&q=cache:oER5NNz8cwcJ:www.fairchildsemi.com/ds/FD/FDS6675BZ.pdf+Fairchild+FDS6675BZ&hl=en&pid=bl&srcid=ADGEEShOhWPjm_M-ROHme4iEMrztCTOd-28jNiy1hVLQQh_VOyv8zcXEVDB_iTQA6MuZO88UmRkDgjyW9j4CP2aIJ-4DS-h6JNM3lvxldeApQeecmz_DADCw1s7tmNLxfPknqX14SZP6&sig=AHIEtbS_rYUAeo_8rB9YHkW05ZjLqeH4Jg

2) http://www.utsource.net/ic-datasheet/KB926QFB1-1829416.html

Service Manual, (Free), for Compaq Presario M2000 series of Notebook PC's,
(Remember, follow Anti-Static Precautions. USE an ESD wrist strap, and connect it's alligator clip to a good ground source),

http://www.tim.id.au/blog/tims-laptop-service-manuals/#toc-compaqhp

Drop down to the line that begins with - Compaq Presario 1100.
(1100 in blue)
Scroll over, click on M2000. (In blue)

(Ignore if you are aware of the following;
PDF file. The computer you are using now has Adobe Reader on it, which uses PDF files.
After you click on the file name { M2000 }, it may take up to 30 seconds, before the first page comes up )

Compaq Presario M2000 series of Notebook PC's, disassembly guide,

http://www.insidemylaptop.com/take-apart-compaq-presario-m2000-notebook/

Regards,
joecoolvette

May 12, 2012 | Compaq Presario M2000 Notebook

1 Answer

My compaq presario CQ61 only charges when the computer is turned off when i switch on the computer it stop charging.whats the solution for this


this is a regular problem with compaq presario cq?? series . There won't be any problem with the laptop. you will only have to change the adaptor.

PLS REPLY OR COMMENT. THANKS

May 18, 2011 | Compaq Presario Notebook

1 Answer

Can't get laptop to turn on. Battery pack lights show full charge, power cord is plugged in. No indicator lights illuminating at all, wondering if it is my motherboard. Compaq Presario 2200 laptop.


very first thing u have do is if u have any other laptop try and connect the aac adaptor with that laptop and also try the battery if it is working with the other laptop that means the motherboard of the computer has gone bad u need to replace it and what also u can try is disconnect the ac adaptor and take out the battery from the laptop and the without ac adaptor and the battery press and hold down the power button for one minute and then connect the ac adaptor and put the battery back in and then try and turn on the computer and also what u can do is shut down the computer first and then just hit the power butoon once only to turn it on and then keep tapping f8 key on the keyboard and it will take u to windows advance options and select safe mode with networking and then try if it turns on to the windows screen or not......and if it doesnt turn ono then definately replace the motherboard...good luck....

Jan 23, 2009 | HP Compaq Presario 2200 Notebook

2 Answers

Laptop won't power up


if there a battery, try to remove the battery and put the charger..try to check if the power come or not come.
second, if not come the power without battery..you must check first the charger output,working or not working..and third, check the power jack...thats the last...

Jan 04, 2009 | Compaq Presario 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

Compaq Presario 1200 won't charge battery


dear N9YK

you can follow this

If you have a loose connection where you plug in the power on your laptop, or it works intermittently, you could have a bad dc jack. Symptoms
  • Move the power plug and the laptop loses connection
  • Broken or cracked dc jack
  • Laptop won't charge but worked on battery
  • Power LED and battery LED flicker when the adapter tip is moved
  • Battery won't charge
  • Sparks come out the back of the laptop
Why does this happen?
  • Flaw in manufacturer designs
  • Use of universal or non-original ac adapter
  • Lots of plugging and unplugging of the ac adapter
  • Tripping on or pulling the ac adapter cord
or you can check your dc amper in your adaptor

oke



thx

cropp

Mar 16, 2008 | Compaq Presario 1200 Notebook

1 Answer

Compaq presario v2000 notebook will not boot up blank sreen


If it is working fine with AC Adaptor, change your battery it need replacement.

Feb 09, 2008 | Toshiba Satellite A15-S129 Notebook

1 Answer

Compaq Presario 1680 Notebook shows no power in window when plugged in.


Take the battery out disconnect the AC adaptor Press and hold the power button about 7 seconds. Put the battery in and connect to AC adaptor press and release the power button. If it caused by static-component lockup, issue will be resolved. If still there is no activity including no power light check the AC Adaptor if its working

Good Luck

Dec 30, 2007 | Computers & Internet

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