It produces some sound when you connect the adapter
SOURCE: Power supply problem
This is going to be with the power management system on the motherboard. These are the classic text book symptoms of a failed power management chip. Few shops will be able to fix this, most just say replace the motherboard, you might get lucky and find one in your area that can fix it, if not then you will need to send it to Acer for repair.
SOURCE: Battery will not charge. AC power LED does not come on when AC power adapter connected.
You may have a faulty adapter. Check the connector with a multi-meter, the voltage reading should be slightly higher than the voltage that is printed on the label on the back og the power adapter.
If the light on the power adapter does not light up when you plug it into the mains, then it is definitely faulty and you need a new one.
SOURCE: in power adapter, blink the LED
I guess first problem is Adapter Power can not established to run laptop.Or fault your laptop motherboard power regulator circuit .Repair it and check Adapter other laptop.
SOURCE: Hellow Dear, My acer aspire 4935
First, you need to make sure your power adapter is providing enough
power to both run the laptop & charge the battery. A very good way
to do this is to compare your laptop voltage & ampere requirements
(written on a sticker on the bottom of the laptop) with the voltage
& ampere ratings of the power adapter. Voltages should be the same,
or the power adapter's voltage about up to 0.5 volts more than the
laptop's voltage rating. Amperage of the power adapter should be at
least equal to or greater than the laptop's rating. It should never be
less than the laptop's rating, or else the power adapter will be
providing insufficient amperes to charge the battery. Of course, the
power adapter's nominal amperage might be ok, but it degraded on usage.
You can verify this by testing using a good or new power adapter.
If
the battery did not charge using the new power adapter, take the battery
off the laptop, & using a dry tooth brush, scrub in between the
fins of the battery connector on the motherboard & on the battery it
self, then put the battery back into the laptop & try again.
If
this still did not resolve the problem, then the battery itself could be
bad. Try it on another laptop, or try a good or new battery in your
laptop.
If this did not work, there might be a possibility that the
charging circuitry on the laptop's motherboard is defective & needs
servicing. In order to do this, the laptop needs to be disassembled
& the motherboard checked for defective/burned out components in the
area near the DC jack. Any defective/burned out components found should
be replaced, or you might need to replace the laptop's motherboard
altogether.
SOURCE: My Acer aspire 4935 is
Problem description:The battery charges only when the laptop turned off. The battery charge LED lights up as normal and the battery gets charged to 100% while the laptop is off.
When the laptop is turned on, the battery charge LED goes off even if the adapter is still plugged in.
Possible cause:1. AC power adapter failure.
2. Battery failure.
3. Broken/loose power jack.
4. Motherboard failure.
Possible troubleshooting steps and repair solution:1. This problem could be related to a faulty AC power adapter. It's possible that the AC adapter doesn't provide enough power when plugged into the laptop. To find out if this is your problem, you'll have to test the laptop with another working adapter.Replace the adapter if needed.
http://www.chargerbuy.com/replacement-acer-aspire-9400-ac-adapter-19v-3-42a.html
2. There is a slight chance that you have bad battery. Test the laptop with a know good battery and replace the faulty one if needed.
3. The battery charge problem could be related to the power jack. Maybe the jack is broken or not making good contact with the motherboard. It is necessary to remove the motherboard and take a closer look at the power jack. Resolder or replace the jack if needed.
4. If the power jack is in a good working shape and new power adapter with battery do not fix the problem, most likely you have a faulty motherboard. Replace the motherboard if needed.
24 views
Usually answered in minutes!
×