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1.Connect the Ac adapter to a known good power outlet. Check the Power LED indicator on AC adapter (without plugging into the Notebook). We are only checking the power AC adapter to see if that is working.
2.If LED on the AC adapter is not lit (when unplugged from notebook), reseat the AC adapter brick and cable. If still there is no light on AC Adapter replace AC adapter and Power cord.
3.If LED on the AC Adapter goes off only after connecting to Notebook, the issue is with the motherboard. Replace Motherboard, DC-In port (AC adapter connector).
4.If the AC Adapter LED is always ON, take a technician's help and reseat the Power Button Board. You can refer to the Service Manual for details on how to reseat the Power Button Board. (NOTE: Before the notebook chassis is opened ensure all the power connections including battery and external devices are disconnected)
The computer doesn't need any drivers to recognize an AC Adapter. If you have purchased the correct AC Adapter for your laptop then it should just work when you plug it in. If it does not then my guess is either you have received a faulty AC Adapter or the DC Jack which you plug into in the back of the laptop is bad. I am assuming your battery is dead and when you plug it in and turn it on nothing happens? You can also try taking the battery out and try to power it on with the AC Adapter plugged in.
The Dell Latitude D610 takes a PA-10 or PA12 AC Adapter. It's 65W or 90W
For 90 watt Adapter the output voltage on your AC Adapter label should read 19.5V and 4.62A At least that's what the Dell brand reads so it should be close to that.
You have a bad or loose DC connector on the system board:
Symptoms of a broken power jack 1. If you wiggle the power cord or the AC Adapter connector on the back of the laptop, the power LED and battery charge LED start to flicker. 2. Battery will not charge in the laptop. 3. Laptop runs fine off a charged battery. 4. With the AC Adapter connected the laptop appears to be dead. No power LED or battery charge LED activity. 5. Laptop randomly powers off without any warning.
If your laptop is out of warranty, then you can fix the problem by resoldering DC-IN jack on the system board. If it
It could be a mechanical failure of the button in the hinge assembly.
It could also be that the AC adapter wasn't working and the system was powering off battery till batter died.
Are there any power indications on the system? (Battery LED with AC Adapter connected?) If there are power indications then the power button seems to be the possible fault.
If no power indications, try a different AC adapter
You may first try performing the steps mentioned below:
1) Connect the AC adapter into a known working AC outlet and to the DC jack on the notebook. 2) Verify the correct AC adapter is being used, and not a third-party replacement AC adapter. 3) Do not connect the AC adapter to a surge protector or extension cord. 4) If the DC jack on the computer is loose or damaged, the computer may require service. 5) Some AC adapters have a POWER LED indicator and can be confirmed as receiving power by ensuring the LED is lit. If the AC adapter is damaged, or the LED is not lit or continuously flickers when plugged into a working AC outlet, the adapter must be replaced. 6) Attempt to turn on the computer normally. 7) Press and hold the Power Switch for 5 seconds. 8) Remove the battery. 9) Disconnect the AC power adapter. 10) Press and hold the Power Switch for 5 seconds. 11) Connect the AC power adapter. 12) Attempt to turn on the computer. NOTE: If the computer turns on without the battery, connect and charge the battery for 24 hours. 13) Disconnect all external devices that are connected to the computer. 14) Attempt to turn on the computer. 15) Remove any additional Random Access Memory (RAM) that was installed in the computer. 16) Attempt to turn on the computer. 17) The troubleshooting steps listed above should resolve your issue. If you have completed all of the steps and the issue is not resolved, service may be required.
This normally is an indication that the AC adapter is not powering the system and the remaining residual power in the battery only powers the system momentarily. Things to try:
If available, try a different AC adapter. If no known good adapter is available, then use a multimeter to see if 19 VDC is available in the DC connector. If system powers up on a different adapter, or the Adapter has no power at the DC connection, replace the adapter.
Remove all drives, Memory, battery, and wireless cards, and see if the system powers on. If it does, add 1 RAM module, and see if the system boots. If it does, add other components back one at a time until you ID the failure. If system doesn't change, then replace the motherboard.
It does sound like a power cord problem. You can test it by getting a digital mulimeter and checking to see if there is 19.5 Volts DC power on the contact points of the barrel plug that goes into the laptop.
Remove the battery and unplug the AC adapter. With the AC adapter unplugged from the system, plug it into the wall, see if the power LED comes on. If it does, plug it into the system and see if it goes out. If the LED never comes on, or goes out when connected to the system, replace the AC adapter.
If the LED stays one, see if the system will power on and give any indications of power at all (Flashing Caps Lock, Scrool Lock, Num Lock LEDs) If no power indication with a good ac adapter connected, then the motherboard is the next item to replace.
Either item listed above can prevent the battery from charging. So the battery is the last item I'd replace unless the system turns on with the battery out of the system.