Thanks for the offer of help. No power appears to reach the laptop - no light is on, the laptop shows no power from adapter input, but shows it is working from the battery. The lighter in the car has power and works my phone charger.
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Re: No power appears to reach the laptop
Try do this...
Once a month, clean the leads (silver or gold metal strips on end of battery) with rubbing alcohol to ensure that your battery is making a good clean contact with the leads in your system.
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The adapter's Syscon detects a short circuit. It might be within the adapter itself; or with your system. Contact the authorized service centre in this case. If you have an other adapter, load it with. By this way, you can get an idea about the faulty unit. Electro help
Yes it does require power input. I have one and I noticed that as well when you plug it into via USB it does have the light. Although it has never worked for me without the AC Power input.
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1. Take the battery out of the laptop & try to turn on the laptop using power adapter only. If the computer turns on, then the battery is defective & needs to be replaced. 2. Make sure the power adapter is not defective. Test the output voltage of the power adapter using a voltmeter. Compare the voltmeter reading to the nominal value written on the adapter or the laptop. 3. If you have another processor which is compatible with your laptop's model, try swapping processors & test to see if the laptop will work. 4. The power button could be bad. 5. The motherboard could be defective & needs to be replaced.
I would remove the battery from the laptop for a few minutes and see if that makes a difference. When you plug the laptops power adapter into the laptop, do you see any lights come on.
You can take your power adapter to Radio Shack and they will test it for free. The most common problem is the adapter going out and your laptop is completely drained and will not start at all. A worse problem is the input jack on the laptop that the adapter plugs into is loose/bad. If that is the issue, you are looking at a big repair.
A fast check to determine whether you have a problem with the power
adapter, power cord or the laptop's battery is to turn off the laptop,
remove the battery, connect the power adapter, turn on the laptop &
see if it works. If the laptop works directly from the power adapter
with the battery removed, then the power adapter is good. In this case
we can suspect that the battery is defective.
The modern adaptors are 'switched mode' that allows them to accept a wide range of input voltages (typically 100-240 VAC).
Unfortunately, they have some components in them that are critical to their operation and on these, many mfrs. like to cheat on quality.
This causes the early demise of the supply.
I saw Acer supplies offered at <$20 US searching on Google so I suggest you replace the supply.
Note; this may not fix your problem anyhow as most laptops have a bit of circuitry inside to control the input from the pack and choose whether to use the battery or not.
If that fails, the unit may not receive input from either.