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Flashing AC Adaptor

Whenever I plug my laptop into the AC Adaptor sometimes it'll flash the AC plug in indication for Win7 taskbar. The symbol flashes from "plugged in" to "battery" on and off every half second. If it's not plugged in then it will indicate "battery" and remain until I plug it into the AC Adaptor. I have troubleshooted by plugging in the AC Adaptor to different outlets, but the same problem. It just recently started happening.

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  • Samsung Master
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Is the battery any good? A bad battery will cause erratic operation of adapter/charger.

Posted on Jun 10, 2017

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Power wont turn on..battery led flash orange


Remove battery. Maybe faulty? Try another cord/charger with the EXACT same specs. Reseat the Memory Mods. has the AC jack been damaged by pulling on the cord? Try plug in and at the laptop's AC jack "wiggle" the AC jack plug. Any change?

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Lenovo ThinkPad T520i Battery


Have you check your Charger for Proper Voltage? Is it Providing Proper Voltage to your Laptop? Check it First.
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My Toshiba a200 laptop doesn't charge and when I charge the battery in another laptop then install it in my laptop it works and when I plug in AC adapter while the battery is removed the AC LED goes...


It look like you have another portable of the same type If you have the same problem trying your adapter on the other laptop it will be a good indication that the adaptor is deffective

Aug 01, 2011 | Computers & Internet

2 Answers

My 1501 Dell Inspiron turns on but I have a blank black screen. The only light that shows is the power light on the upper right side of the laptop.


Power getting to the laptop. Try first to see if this will give a screen image on an external monitor, listen for the sound of the cpu fan, hard drive and DVD rom drives clicking, see if the DVD rom drive will open if pressed.

Then remove battery and AC adaptor, press the power button for 30 secs, refit mains only and try this on mains supply (no battery)

If this fails to boot, check the light on the ac adaptor is a steady green, flashing green indicates power is not fully reaching the laptop (motherboard problems)

If it is steady and the LED power light on the laptop is steady, suspect the DC jack socket. If this feels loose or sloppy, it will need replacing, depending on the type fitted, it may be soldered onto the board, or a wired connector, which sometimes goes bad.

After that, I'd suggest that a capacitor has gone on the actual motherboard and you will need to strip the laptop to check it.

Jul 18, 2011 | Dell Inspiron 1501 Notebook

1 Answer

Gateway NV5207u will not power on when the power button is pressed. The Power light does not light up when the battery or AC power is plugged in. Can you help?


Sounds like there is a serious fault in the motherboard. I'm assuming you checked that the AC adaptor is working ok? Check first that there is power to the adaptor and power out of the adaptor by ensuring the green led is on and not flashing, a flashing led indicates power is not making a circuit in the motherboard and therefore a faulty powerboard.

Mar 27, 2011 | Gateway NV5207u Notebook

1 Answer

I cannot get my acer aspire 4315 to AC power up. new batteries are ok. i have changed the power jack but no difference. please help


Check the light on the AC adaptor when plugged in to the laptop. If it is flashing, it indicates that the power is being "spat back". That is, not completing the circuit. Means that you have a fault in the charging circuit. I'd check for burning around the contacts where the DC port was soldered onto the board / or if the plug type, check the socket on the mobo is not damaged and is firmly soldered on.

After that, (if not already done) check the output voltage of the adaptor with a multimeter, might be a simple failure of the ac adaptor, even though it looks ok

Mar 20, 2011 | Acer Aspire 4315 Notebook

1 Answer

Every time I turn it on, it displays nothing, just a black screen.But the power indicator is on and there are some white lights flashing next on the Caps lock button and above the scroll button..


Dead (ish) Laptop.

Press the power button momentarily to check if it is hibernating or in stand by. If this doesn't work;

Try firstly removing the laptop's battery as it may be at a critical voltage and the system will not start because of it. Plug in your ac adaptor and monitor what happens. Does the power light illuminate? If it does it should then boot up, if it doesn't, try a known good ac adaptor before going any further.
If the adaptor is fine and the laptop still won't start, then you may have a mother board fault and should contact a dealer/repairer for further advice.
Hope this helps.

Feb 04, 2011 | Computers & Internet

1 Answer

Laptop won't switch on although blue power light on is showing power is getting to the machine


Check the power adaptor led is not flashing. Flashing Adaptor LED indicates fault with laptop charging circuit / powerboard

If it will not boot on battery, and you know the adaptor to be good, the issue lies with the motherboard.
Sometimes, removing the battery, and unplugging, pressing the power button and holding it for 30 secs, replacing the adaptor only will allow it to boot up, but this will only work if the motherboard is not damaged r the CPU fan has not failed.

Jan 27, 2011 | Toshiba Satellite P200-13Z Laptop AC Power...

2 Answers

Battery and or charger


Try removing the battery and see if the laptop works with the AC adaptor. If not either the AC adaptor is bad or the motherboard is defective.
If your battery LED flashes (yellow or Amber) or is solid Yellow or Amber color, this usually indicates battery is beginning to go bad. Eventually it will not hold a charge and will need to be replaced.
As for the error message “failed DST short test 1000-0146”, this is flagging an error on your hard disk drive. This could be caused by a bad hard drive or just needs to be reformatted.






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Nov 13, 2008 | Dell Inspiron 9300 Notebook

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