Question about Acer Aspire 3680 Laptop

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Dc connection overheating

We had a bad connection with the dc board, had acer replace the dc board once. Problem started again, this time it caused it to get really hot, with a horrible burning smell. We unplugged the laptop and shut the lid till the next morning. When i went to open the laptop and after I turned it on, there was a 2 inch white stripe running down one side. Sent it to Acer for repair. They are tellling me that this was neglect. That I had to of damaged the lcd screen. The heat would not do this. I have read several articles about Dell having this same problem. Of course, Acer will not repair it, well for $700. I did not do any type of abuse, neglect, spill, drop nothing to this computer. It had to of happend due to the heat. What do you think.

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Re: dc connection overheating

Well if , the stripe u're talking about is a crack in the display, than it;s not caused by heat or electrical surge... If not, than u can go to a technical evaluator, and than if u have the time and money make an official complaint ....(if it's still in warranty..)...and recuperate u;re financial damage...

If not, just find a second hand display, and change it u;re self, it's easy !

Posted on Jan 19, 2008

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Acer 53338 lap top got power but won't turn on

Remove main battery and try again, next sub out the ram memory one at a time and power up each time. If still unsuccessfull the DC jack in the laptop is the most likely problem, they often develop bad connections at the DC plug source causing all kinds of symptoms, the computer must be dismantled down to the motherboard level to address this.

May 04, 2012 | Acer Aspire 7520-5185 Laptop

2 Answers

My acer aspire 4520 all of a sudden would not turn on one day. When the power button is pushed, the little battery light in the left corner on the bottom of the keyboard will flash orange and nothing will...

You may have a bad DC connection:

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 re-soldering DC-IN jack on the system board. If it

Dec 27, 2010 | Acer Aspire 4520-5582 Notebook

1 Answer

Will not boot up, screen is blank power light comes on for a few second, then turns off

Either your DC jack is bad the motherboard is bad or the power supply is bad. The DC jack on that one is NOT soldered in and fairly easy to replace if you know how to tear it down. Toshiba uses a clip in clip on DC jack instead of soldering them to the board. Start by ohming out the power supply make sure its placing out the correct amperage. Thibk its around 1.58 amp at 19volts. You can see 4 sure looking at the label on it. If its good I would take it to a qualified shop to have the DC jack and board tested to see which is causing your power issue. The average replacement laptop board is $285 not including labor. DC jacks run about $5 but the labor should run around $100

Sep 17, 2010 | Toshiba Satellite A200-0ET00X Notebook

2 Answers

Difficulty charging

Sounds like you have a bad internal dc jack. These go bad after so long. This is a normal problem on all laptops. Make sure it isn't your battery by seeing if you could use another same model battery. If having tried a new charger and a battery and the problem still persists then take it to your neighborhood computer shop or send it to me. I can replace the dc jack for you since you'd have to sodder a new one on.

Mar 18, 2010 | Acer Aspire 5570-2067 Notebook

1 Answer

There is a bad connection between the power cord and the port into which it fits. this bad connect has lasted for weeks. i've been able to jiggle the cord and situate it so their is a connection. but, now...

The port on the laptop where the AC adapter, (Charger to some), plugs into is the DC Power Jack.
(Or DC-in )

This is an example of an aftermarket manufacturers offering for a DC Power jack, that fits an Acer Aspire 4520 Series Notebook, (Laptop),

Click on the photo of the jack, showing three views of it. This will enlarge for better detail.

As you probably know computers use DC voltage.
Your laptop battery, and a flashlight battery are examples of stored DC electricity.

Looking at all three views, the middle pin of the jack is for the Positive connection. Down inside the round opening on the side, is a strip of metal. One on each side. These are for the Negative connection.

Looking at the jack in all three views, you will note a flat pin, or Prong, that comes up in the middle, and at the back of the jack.
You will note that it is riveted to the center pin, or Positive connection.

The two flat pins, (Or Prongs), immediately on either side of the middle flat pin, are for the Negative connection. They connect to the strips of metal inside the round jack opening.

In relation to how the jack sits inside the laptop, the jack is upside down. The flat pins go down through the motherboard, and are soldered to the motherboard on the other side.

1.The body of the DC Power Jack is made of a type of Phenolic plastic. Hard, and has great insulating qualities.

It is also easily broken.
If you can move the center pin around, this is what has happened. (Battery REMOVED!)

Solution is to replace the DC Power Jack.

2.Where the flat pins go through the motherboard, and are soldered, is called a Solder Joint. The area where the flat pin meets the motherboard, and solder is applied.

One, or more solder joints can crack.
This gives you an intermittent connection, such as you have described.

Solution is to re-solder the solder joint/s.

3.There are also laptops that have a bad motherboard design.
The DC Power Jack is placed on an area of the motherboard, that is weak.

If you think of a 1 foot square sheet of plastic, as being the main body of the motherboard, and attach a 2 inch strip to the main body, this is the area shape that I'm referring to.

The 2 inch strip can crack, where it meets the main body.
Motherboards have Circuit Traces. Think of them as Very, Flat, Thin, copper wires.
Circuit traces go across the main body of the motherboard, and lead to the 2 inch strip. If this 2 inch strip cracks away from the main body of the motherboard, the circuit traces break.

If you move the AC adapter plug while in the DC Power Jack, you may be able to make the broken circuit traces touch each other, making a connection.
Eventually this fails to work.

Solution is to replace the motherboard. With this type of bad design the problem will reoccur.

This link is for the Acer Aspire 4520 Service Manual.
It is free.

As you can see there are many service manuals listed for Acers.
Scroll down with your eyes to the second Aspire listing. (Starts with 1200, 1300, 1310, 1350, and so on)
Scroll across the third line down, until you come to - 4520
Click right on 4520

This is a PDF file download. After you click on 4520, you may not see anything happening for a few seconds. The file is downloading in the background.

Advise letting the file download all the way, before looking through it. You might break the download connection.

If you wish to save a copy to your computer, go up to the top header, and click on the Floppy Disk icon.
This is the second icon from the left.

If you hover your mouse cursor over the icon, it will briefly reveal, 'Click to save this to your computer or another location'

After you click on the icon a small window comes up.
Save a copy...
Down in the Save a copy box you will see -
File name:

In the box to the right of File name, you will see -
aspire 4520 1220 4520g 4220g

Advise put your mouse cursor right after the g in 4220g, Left-click Twice, then make one space with your space bar.
Now type - Service Manual

Makes it much easier to find.
If you save it to your computer, you won't have to download it again. You can also burn it off to CD disk, and free up space on your harddrive.

I haven't worked on the Acer Aspire 4520 series yet.
The DC-in jack, (DC Power Jack) is on the Right side at the rear. (Page 17)

Looking at the Board Layout, Top View, on Page 12, you can see the DC Power Jack.

Come down below the 1 with the red small rectangle. Look straight to the left of the Half Moon hole, with the two top corners cut off. The DC Power Jackis on near the edge of the motherboard. (Board)

(You can click on the + sign in the top header, to zoom in)

On Page 13 you're looking at the Bottom view of the motherboard. (Board)
The little silvery dots are solder joints.

Your motherboard design does not follow Item 3,
I listed above.
You have a broken DC Power Jack, or cracked solder joints.

Dec 08, 2009 | Acer Aspire 4520-5582 Notebook

15 Answers

5920 will not turn on, adaptor green light brinks

The Aspire 5920 and most other acers with the same logic board style are notorious for component level power issues. The first possibility is a severed connection in the DC connector cable. Its somewhat rare but it happens. The connection is broken right where that cable meets the back pin of the DC connector. This can be easily resoldered and your problem is solved. Becuase the AC adapter is blinking this makes me think that there is a shorted component on the logic board. If you have access to a multimeter set it to check voltage, remove the large panel on the bottom case (4 long screws). Then remove the fan (3 small screws) and the heatsink (4 custom screws). Once these are all removed you can look at the back side of the DC connector and see the cable. The cable consists of 4 wires, 2 black, and 2 brown. Black are ground lines, and brown are power. Using your multi meter (1 lead to ground and 1 lead to power) see what voltage you have right at the logic board side connector for this cable. If this is not the cause of your problem you should see ~19v. If yousee less, or nothing at all, its likely that either your AC adapter is bad, or the cable has been severed on the DC connector side. The last possibility (the one I feel is the cause for your issue) is that you will see a pulsating voltage. This means you have a capacitor short on the logic board. There are quite a few possible caps on the board that could short out like this. The picture below shows the 2 most commonly shorted caps on this logic board. Use your meter to check continuity between both sides of these caps, if you gen full continuity then the cap, one in line with it, or another in the circuit is shorted. Remove both of these caps and then meter the 2 pads beneath them in the same way you metered the caps. If you do no receive full continuity anylonger, then 1 or both of those caps were the cause for the short. You can also meter the caps themselves off of the logic board and if you receive full continuity the cap/s are bad. If you have removed the caps and still register a short on the logic board, then its time to strip the machine down and remove the logic board, repeat these steps with all ceramic capacitors (like the ones in the picture) until you no longer register a short. Just as a side note, after removing components from logic boards you must wait until it cools to room temperature otherwise your mulitmeter readings may be inaccurate. f77b3d8.jpg

Aug 19, 2009 | Acer Aspire 5920-6727 Notebook

1 Answer

My battery will not charge

Hello Following issue could be possible

Issue:Main computer battery does not charge.
Cause:This issue can be caused by any of the below possibilities.
  1. Computer AC / DC cable is bad not allowing the computer battery to charge.
  2. Battery is bad.
  3. Battery charger board is bad.
Computer AC / DC cable is bad not allowing the computer battery to charge
Verify that the AC and or DC cable is not bad by testing the computer only with the power plug connected and the battery out of the laptop.
Battery is bad
It is possible that if the power plug is good that the computer battery is bad. Leave the computer connected to the power with the battery connected in the computer for at least one hour; if the battery does not charge, consider having the battery and/or the laptop serviced or repaired.
If the computer and/or battery is not in warranty consider just replacing the battery as it is very likely that it is just a bad battery.
Battery charger board is bad
If the battery has been replaced or an alternate battery from an alternate identical laptop does not work in the computer, it is likely that the power or charger board within the laptop is bad. It is recommended that the laptop be serviced or repaired.

Aug 18, 2009 | PC Laptops

1 Answer

Acer aspire 3680 won't turn on / Black out.

This line of Acer laptop has numerous power issues. If the laptop actually will not power you will likely need to perform some component level repairs. If it powers on but does not complete POST. (Meaning you dont see anything on the screen) Then you would want to begin by removing the center panel on the bottom case. Once removed locate your memory sticks and make sure that they are seated properly. Remove them and reseat them. Try to power the laptop again and see if your problem is solved. It is possible that if this does not work that the memory is actually bad and must be replaced. There are quite a few other things that can cause this. Memory is the easiest to repair. This failure can be caused by a defective CPU as well, but for the average computer user I would not suggest taking your PC completely apart. If you are comfortable doing so you will want to disassemble it, remove the logic board and use a test CPU to see if this solves your problem.

In case your unit actually doesn't power on it changes things. The first thing you need to check is the status of your AC adapter. If you do not have a voltage meter you would need to use a test adapter to elimiate that possibility. More likely the problem is caused by an internally broken DC connector. This happens very frequently and is a rather simple repair if you posses decent soldering skills. You can purchase one of these DC connectors from ebay for $2 or so. Disassemble the laptop, remove the two screws that attatch the DC board tp the main board. Desolder the DC connector and replace it with the new one. Sometimes this DC board will have been damaged from a power surge. In this case the entire power plane connected to the back pin of the DC connector will likely be shorted to ground. If this happens remove the old DC connector, cut off the back pin and solder and heavy gauge wire directly to the back pin. Run this wire around the DC board on the left side of the DC connected as you are looking at the connector fromthe front. On the other side of the DC board you will see 2 farite beads wired in parallel. They connect the shorted power plane to the next. Remove these two farite beads and run the wire to the contacts on the next power plane. This will bypass the damage to the DC board.

If the DC connector is the the cause for the problem. There is a pair of capacitors on the logic board that fail very often. To see them you will need to remove the heatsink assembly from the logic board. They are ceramic capacitors right next to the CPU socket. They are wired in parallel and may bot show any physical signs of damage. If you have a multimeter set it to test continuity and put both leads on eachside of the caps, if you hear a constant beep then the caps register as shorted. Remove them both from the logic board and repeat this process with them outside the circuit. If you touch the leads to each side of the caps and hear nothing, then the cap is good. If you hear the same continuous beep then the cap is shorted and is the cause for your power issues.

If these suggestions have not solved your issue, then the motherboard may still be repairable but will require an experianced technician to isolate the cause for the no power. Good luck.

Jul 13, 2009 | Acer Aspire 3680 Laptop

1 Answer

Wont start?

Could be alot of things... Need more info about the symptoms ya were getting before it stopped ..
It coul be that the CPU was getting overheated and causing it to shut down until finally it blew the chip
Or.. could be the Motherboard Blew....Or.... could be a Bad memory stick... try pulling one at a time and rebooting ..Or,...You could have a bad DC jack that at first was just "loose" and now has broke or disconnected from the +positive post connection /

Jun 04, 2008 | Averatec 3200 Notebook

5 Answers

My Compac Armada M700 does not power up.

Had the same problem with My Compaq M700 No Boot Or Post. Battery Light Flashes 8 Times, Have to Wait 24 to 48 hrs sometimes longer to get Laptop to Start. Tryed the DC Converter Board Change No Difference same Problem. Noticed When Laptop Did Start Clock Time Was always a Little Off 2-4 Hours sometimes more. So Figure CMOS Problem With Time Issues. Read About Battery Memory Transitor Voltage spike Detection Issues Corrected With Newer Bios Flash at HP Supports. So I Flashed Bios With Latest 686h. During the First Boot After Reflash Battery LED Did flash No Start, After pushing the power button again it Started. And has Every since.So Far Laptop Now Boots Everytime and CMOS Checksum Seems To Keep Time Correct In Windows. The Bios Flash Corrects a Voltage Spike Detecting Transistor In The Charging Circuit. During First Start after flash Bios will run system test on the charging system and Correct CMOS. Worked for Me Hope this Helps a Few.

Oct 30, 2006 | Compaq Armada M700 Notebook

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