Question about Acer Aspire 3000 Notebook

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Power supply My laptop will not except power, I have verified that the power supply is working fine. Is there a fuse some place??

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  • yachtbound Jul 26, 2008

    thanks for the advise..

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No fuse. This is going to be with the power management system or the jack. Check the jack to see if it's loose or broken. If not, then the problem is with the power management chip, and the motherboard will have to be replaced. I've had a few of these machines with that problem, and have found boards on Ebay at a decent price.

Posted on Jul 25, 2008

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Posted on Jan 02, 2017

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Is there a power input fuse on a Toshiba Satellite C655D?


no, there is no internal fuse, unfortunately- because this sounds like a dead motherboard. the aftermarket power supply could have been over-volting, or delivering unsteady power- burning the motherboard.

OR the old power supply shorted, and blew the motherboard's power circuitry, and you were just running off battery power when you first got the replacement.

please keep in mind that, at times, the physical power input jack on laptops can also break, or come loose from the motherboard.

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My dell 620 battery will not charge with the power supply, yet it charges in the docking station. The laptop will run fine with the power supply except that the battery will not charge till I place the...


sounds like the situation is with the AC adapter detection. try to restore your BIOS defaults and update BIOS if applicable. Test another AC adapter. If that fails, most likely, this is with the motherboard. You may either get a new board, or just continue to charge it using the docking station.

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My headlights all stopped working except the passenger dim how do i fix


Take out the bulbs and check them for continuity with a meter.

If they are OK then

Buy a 12v neon tester and check that there is power being supplied to each lamp by placing the crocodile clip onto a good clean earth and the probe tip onto the spade connector supplying the lamp

As the High and Low beams are individually supplied with voltage if there is nothing there then you need to go back to the fuse box and if they are OK back to the lighting switch itself

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All electrical is out on 2000 subaru except door open sound


Sounds Like A Power Supply Problem Originating At Battery Check + Battery Terminal+ and see fi Anything Looks Corroded, Or Dissconnected, Also Check Power Distribution Box for Blown Curcuit Breaker or High AMP Fuse.

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There isn't anything in the power supply you cannot rebuild except the transformer.

BUT you should verify that something in the mixer didn't short out and damage the supply.

After you relace the smoked parts (likely the TOP245Y offline regulator chip is gonzo... then you use this trick to restart the unit safely:

Put a 60 Watt light bulb in series with the hot side of the input power line. I would recommend you use an ISOLATION transformer when working on the power line side of this for safety.

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Power issues on HP DV1000


It is possible you have two dud batteries. Recharageable batteries have a limited life, they have a finite number of charge and discharge cycles.
With the battery removed and only the power supply connected and the laptop powered up, when you touch the connector on the laptop and the laptop does not shut down then the laptop connector is OK.

If you can verify your new battery is OK the the fault could be the power supply adapter, if may not produce enought current to run and charge the battery. Try charging the battery overnight by turning off the laptop and leaving on the mains t charge. Borrow a mains adapter and test it on your computer.

You can also check the BIOS setting for power management, ie. hibernate, low power shut down etc.


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Wont power up


If you open the TV set and find that the fuse is blown, it is possible that there is a defect in one of the power supplies. It is possible that the fault is the main power supply or a backplane supply.

When replacing the fuse and if it blows again, this means that there is a short. The cause of the short must be serviced to return the set to normal operation.

Jerry G.

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1 Answer

LAPTOP /no power


It states you are not getting no power on your lap top computer :

No power or computer does not turn on Cause: No power from the computer can be caused by any of the below possibilities.
  1. Connections not connected properly.
  2. Third-party hardware.
  3. Bad power cable.
  4. Incorrect power supply.
  5. Bad battery.
  6. Bad power supply, power button, and/or power board or inverter.
Solution: Note: If the computer is turning on but is not posting (beeping) or giving any type of picture on the display, please see document CH000607. If you are uncertain if the computer is turning on or not, this can be easily checked by locating any fans in the computer or visible from the outside of the computer. If these fans are spinning, the computer is receiving power and this document may not apply to your issue. Connections not connected properly Verify that the power connection is connected properly to the wall and the back of the computer. If the connections appear to be connected properly, attempt to disconnect and reconnection both ends of the cable. If you have a power strip (surge protector) or switch used to turn everything on at once, temporarily disconnect the computer from that switch and connect that cable directly to the wall. This will help verify that the strip or switch is not bad. Verify that the outlet works by connecting a different component to that switch.
Third-party hardware If additional hardware has been recently added to the computer it is recommend that you temporarily disconnect that device or devices from the computer to verify they are not preventing your computer from turning on. Note: If the computer was working fine before you added the new hardware, removing the third-party hardware did not resolve the issue, and the computer is not beeping but is turning on, please see our POST troubleshooting document CH000607.
Bad Power cable Verify that the cable supplying your computer is not bad or damaged by using another power cable. If you have a standard CRT monitor, this cable can be used in place of the computer power cable. If you have a portable computer or laptop, when the cables are plugged into the laptop you should see a power light or battery charge light. If this light is seen, this is a good indication that the power cable is good.
Incorrect power supply If you are building your own computer or if the computer has never turned on since you purchased it, it is possible you are using a power supply that does not supply enough power and/or the incorrect type of power supply. Verify your power supply meets the requirements of your motherboard and processor.
Bad battery If your computer is a laptop or portable computer that utilizes a battery for mobility it is possible that the battery may be causing your issue.
  • If your computer powers on when the cable is connected to the portable computer but not when it is disconnected, we recommend you purchase a new battery.
  • If your computer does not power on when the battery is connected and when the power cable / charger cable is connected, try removing the battery and seeing if the computer can power on with only the power cable connected. If no power is still received, skip to the final section.
Bad Power Supply, power button, and/or power board or inverter If, after following the above sections, your computer still receives no power, it is likely that a hardware component in the computer has failed. It is most likely that the power supply has failed. If you do not plan on replacing the power supply yourself or if you have a portable computer, we recommend having the computer serviced by your computer manufacturer or a local computer repair shop. If you have a desktop computer and plan on trying to repair the computer yourself, we recommend you replace the components in your computer in the below order.
  1. First open the computer and verify the power connections. You may also wish to consider disconnecting the main power cable and reconnecting the power cable to make sure it has not become loose. Also verify the power button cable is correctly connected to the Motherboard.
  2. Replace the power supply with a new power supply.
  3. Replace the motherboard.
Good Luck,Please dont for get to Vote,Thank You

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2 Answers

VAIO VGN-S460


check adapter output also may be problem with dc socket on laptop loose or somthing.

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