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What side is positive & negative on a dell inspiron e1505 power plug? inside or outside is positive or negative???

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  • vaporofdeath
    vaporofdeath Nov 29, 2012

    ok, let me add this piece of information... I do not have the factory power supply but do have others but I know dell does some ODD things with wireing so I want to know the polarity of the jack itself being I can not look on the factory power supply to find it... the power jack is not labeled... I THINK the outside is "Negative" and the inside "Positive" but I just want to make sure and all the pictures I find on Google images do not have a high enough graphic content to zoom in and read... so... I ask the world =)

  • max carson
    max carson Nov 29, 2012

    Sorry, I can't be sure myself. But Negative on the outside of plug would be logical.

  • vaporofdeath
    vaporofdeath Nov 29, 2012

    LOL... me too but when has dell done ANYTHING logically???

  • vaporofdeath
    vaporofdeath Nov 29, 2012

    I found a HP power supply that works great and it IS negative outside =) thanks for the help everyone!!! hopefully this can also help someone else out there =)

  • max carson
    max carson Nov 29, 2012

    Excellent point, the logical thing. You could use a multimeter to verify Positive and negative at the plug.

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  • 7,627 Answers

Look on the transformer, or at the AC jack. Always use the EXACT type, power specs, DC v and Amps of the original. Beware of inexpensive aftermarket cord/chager/transformers, sometimes they do not play well with your laptop. As a rule the male pin/pins is the positive and the outer is the negitive. Take a look at this: http://accessories.us.dell.com/sna/category.aspx?k=ac+adapter+inspiron+e1505&_nks=true&c=us&cs=19&l=en&s=dhs&category_id=6348

Posted on Nov 28, 2012

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SOURCE: dell inspiron e1505 wont boot

Sounds like you are having issues with the motherboard since we are talking about a laptop here. However, there is a way on how we can isolate that the motherboard is the main problem. Remove the memory by clicking this ---> http://support.dell.com/support/edocs/systems/ins6400/en/om/parts.htm#wp1103163 
If in case the system would still act the same, call up Dell with the service tag or express service code to have the motherboard replaced.

Posted on Sep 23, 2008

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SOURCE: Dell Inspiron E1505 Notebook will not power up..

I finally fixed this. I had tried the above and also removing the cmos battery. Nothing worked. I had removed all power. I took the main power battery out and disconnected the AC power for 36 hours.
It booted when I put the power back. I shut it down before it could get to windows.
I booted from a Ultimate Boot CD 4 win and did a registry restore to a date prior to this occuring. Rebooted and the the machine has been working ever since.
I always had the feeling that this was a video driver issue but the fact that it stayed in this dead suspended state with no power still baffles me.
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SOURCE: dell laptop inspiron e1505 no boot green light

could be a case of overheating.
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That will solve it.

Don't forget to rate this answer if it helps

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Posted on Dec 22, 2009

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1 Answer

Dell inspiron 1520 won't turn on.


Remove the battery from its compartment on the side of your Dell Inspiron laptop computer.


Remove the power adapter from its plug on the side of the Dell Inspiron (if your laptop is currently plugged into a wall outlet).


Press down and hold the "Power" button on the laptop for one to two minutes. This will dispel the excess electrical current that is built up inside the laptop.


Put the battery back inside the compartment of your Dell Inspiron.


Plug your power adapter back into the side of the Dell Inspiron. Press "Power." Your laptop computer will now turn on.


hope this helps

Oct 08, 2012 | Dell Inspiron 1420 1501 1520 1521 1525...

1 Answer

Intermittent connection on dell e1505 . power cord isn't the problem . it's internal. the same power cord works fine on our other laptop.


The problem is the power socket on the laptop, the socket is either faulty or has a dry solder joint that needs to be resoldered. To confirm this problem, when you wriggle the power plug that plugs into the laptop the charge LED will flash and holding it firm in a certain position the charge LED will stay firmly on.
Repairing this power socket requires the laptop to be completely dismantled to get at this power socket.

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Battery wont change


A problem is just like a mountain. You don't jump over the mountain, you climb it in steps, one step at a time.

1.How old is the battery? 1 to 2 years old, you can expect it to be at the end of it's Life Cycle. Batteries are rated in so many hours of usage.
Best bet is to let the battery charge 24 hours, then try it.

Would be nice if you someone else that has an Inspiron 1525, and they would try to charge your battery. If it doesn't charge up, you would know it's the battery. If it does charge up you can move on down the charging system, to try to find the problem.

2.AC adapter, (Charger) If you have a multimeter, set it to the 50 volt DC scale.
Laptop and desktop computers use DC current. (Direct Current) Your house, for example, uses AC current, (Alternating Current)
AC is converted to DC by the AC adapter, (Charger)

An example of DC current are flashlight batteries, and your laptop battery.
DC current has a Positive pole, and a Negative pole.
The center pin of the plug of your AC adapter is the Positive pole. Any of the four outside pins on the plug, are Negative.
The Red, (Positive), probe of the multimeter goes to the center pin. The Black, (Negative), probe goes to any of the outside four pins on that plug.
Example of a DC Power Jack, for the Dell Inspiron 1500 Series of laptops, 1525 and 1526, (This is the jack inside your laptop, where you plug the AC adapter into),
http://www.megaemarket.com/dc-power-jack-for-dell-inspiron-150150015011505.html

3.It may be that DC Power Jack itself is bad, or one of the solder connections is cracked. It's hard to see it clearly on the link I provided, (So I Right-clicked on it, Save Image As, and put it right in my My Pictures folder. Then I magnified it), but in the photo you will see some metal pins sticking out of the rectangular body.

The metal pins are sticking up. In reality those pins go down, when the jack is mounted on the motherboard. They go through the motherboard, via holes, and are soldered on the other side.
It is these solder joints that may crack, is what I'm referring to.

Solution to 1?
Obviously buy a new battery.

Solution to 2?
If your multimeter findings show lower voltage than needed, it's time to buy a new AC adapter. They have generic ones that can be used on a variety of laptops. The voltage will be stated on the top of the AC adapter.
Example: 19.2V-1.0A
That's 19.2 Volts at 1 AMP.

It may just be the plug end on the AC adapter itself. The plug end that goes into the DC Power Jack, on your Inspiron laptop.

Solution to 3?
Unless you are a skilled Electronics Technician, and have Excellent de-soldering/soldering skills, I advise taking it to a computer repair shop. It may not just be cracked solder joints. The DC Power Jack may need to be replaced. Maybe the motherboard is one of a bad design, and where the DC Power Jack attaches to it, has cracked.

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1. Reseat the battery.
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3. Check the battery connectors on the battery and the system. Examine the connector on the battery and the system. Make sure that there is no physical damage and that it is clear of debris.
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