Question about Toshiba Satellite M35X-S149 Notebook

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Display wont come on unless there is persure on the dc jack

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Are you still having trouble?Please let me know.Thank You very much!

Tyler

Posted on Mar 30, 2010

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Posted on Jan 02, 2017

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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

Wont charge


The DC plug in the laptop is worn/charger plug, or the DC jack in the laptop is breaking away from the motherboard.

Mar 19, 2012 | ASUS Eee PC 1000 Notebook

1 Answer

My netbook charger wont chanrge properly. I have to play around with it too charge. At some places like if i putit down it might charge but then again if it is moved abit then it wont charge. I have to...


This is caused by a faulty DC jack on your motherboard. The solder holding the pins from the jack to the motherboard break and when you wiggle it just right the solder is contacting the board.
Most repair shops will charge you at least $100 to fix this.
Repair options are A. Re-solder the DC jack on, this requires dis-assembly of the netbook B. DC jack has broken pins and it is generally possible to replace the jack unless it is epoxied to the motherboard then it's on to C. C. Replace the motherboard.
A is obviously cheaper.

Aug 05, 2011 | Advent Netbook

1 Answer

I have a gateway mx6448 laptop the power jack on motherboard has failed how do you test and can you get another one to solder in and where.. i know my cord is good i got 19.3 volts and says needs 19 volts....


Just to be on the safe side remove the main battery from the laptop since it is dead, in 50% of cases the laptop will run again. If there is no change the DC jack in the computer is the next likely suspect, most jacks that come loose can be resolded back on the motherboard but this no easy task. I usually go to www.ebay.com type laptop, make and model, and jack or DC jack, if you still want new. The laptop will require major dis-assembly and soldering work so if you attempt this be very careful and take your time.

Jan 07, 2011 | Gateway MX6448 Notebook

2 Answers

How to replace dc power jack for toshiba p15


Take apart laptop and see what type of jack is on your system. There are two types. one is soldered on and the other is a module that connects to the motherboard with a wire connector.

If you have a soldered on type the you will need to de-solder it from the board then solder a new one onto the board. most ac jack issue just need to resolder it unless the jack itself is broken.

May 19, 2010 | Toshiba Satellite P15-S420 Notebook

1 Answer

No post and no display


Do you have any indicator light activity at all?

If so, then try hooking up an external monitor.
If it shows display on the screen this would point to video issues (CCFL tube, Inverter, video chip, one or a combination of.)
There is also a key combination to switch between internal display and external monitor. Usually FN key + (little monitor symbol on one of the upper function keys)

If you dont have any indicator light activity then;
Things i would try first.
  1. Check the power adapter for power. (if you have a voltmeter this would be the easiest way) if not, try switching to another outlet
  2. Check your DC power jack to see if there is any freeplay or damage to it. 
  3. If both these check out, then i would unplug dc power adapter from laptop, remove battery, and let the laptop sit for a few minutes. Then hold down the power button for 10-15 seconds. Plug in the DC power jack but dont place the battery back in yet.
  4. Try powering up. if no go, then plug the DC power jack back in and try powering up again. 
If this still doesnt work, and your DC adapter voltage checks good and your DC power jack isnt loose, i would suspect either a charging circuit issue or deeper motherboard related issues. 
Hope this helps

Feb 15, 2010 | Gateway MX6750 PC Notebook

1 Answer

Gateway m460 wont power up and battery wont charge!


From the information you provided it sounds like a bad DC jack, first check your power adapter with a volt meter if you have one accessible. If your power adapter is outputting the proper voltage, then within a 95% certainty its your dc jack. You can look at this website here for more info on dc jack repair, if you dont have the proper tools to fix it.

May 15, 2009 | Gateway M460 Notebook

1 Answer

Cx2620 gateway wont turn on


Possibly Need a New DC Jack In Your Laptop... the DC JAck Is The Port Where Your AC Adapter Plugs Into...

Though You SHould as well Check For Proper Power To Your CHarger Cord.. Not all AC Cords That Have Their Lights On Are Able To Charge...

To CHeck If It's The DC Jack... Remove Your Battery..... Plug In the AC Adapter Cord... Power On... If You Get No Lights/ No Power/ No Fans Etc..... It's Your DC Jack

Nov 20, 2008 | Gateway Convertible CX2620 Notebook

1 Answer

I need to replace the DC jack on my laptop


Do Not Attemp to Replace the Jack Unless You Have Experience with Soldering... The Original DC Jack Must First Be Desoldered and Removed... You Need A Desoldering Pump or Solder Wick (braid) To Remove the Old Solder From The Jack Post Pins..... DO NOT ATTEMP TO RIP OUT THE OLD JACK!!!!! You Will Pull The Contact rings from the center of the motherboard out and render the motherboard useless...


Slowly and carefully Unsolder the dc jack, Remove it and Clean the board.... Very Important to Clean the Motherboard after desoldering the old jack.... You Must Remove all old Flux...

Then Apply a light layer of fresh solder to all the contacts on the motherboard....

Apply Flux paste to the New DC Jack Pins and a light amount onto the contacts on the motherboard....

Insert the new DC JAck Into The Slots and Apply Solder to all points on the underside of the motherboard....

Flip The Motherboard Back Over, To THe Side Where THe DC Jack Is,, and Apply Flux then a light amount of Solder To The Side Pins and Back Power Pins ...


Then Clean the Motherboard off again using an Electronics grade circuit board cleaner (found at radio shack) or a tiny amount of denatured alcohol applied to a paper towel .. THe Purpose is to remove any remaining Flux..... as this will just deteriorate the New Solder over time unless cleaned off...

Good Luck

Nov 17, 2008 | Computers & Internet

1 Answer

Wont go on


Dumb question, is it plugged in? Can you verify the lappy is getting DC juice from the power adapter?

If electricity is available from the charger, when plugged into the lappy can you see a charging icon either on the battery or some sort of display near a on, wireless, power, battery display? If no symbol shows charging, you either have a bad jack in the lappy or a bad battery.

If DC is not available from the charger, then it's bad.

Hope that helps;)

Dec 24, 2007 | Computers & Internet

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