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my Laptop Acer 5315 series has no indication of any power. I just bought a new charger and same thing. what should I pay attention to when I start taking it apart? is there any lights inside that could point to the source of the problem? Thanks
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Try removing the battery and powering up with just the AC adapter
From the 5310 service manual which I believe is similar to the 5315 and has been uploaded and linked on the 5315 device page
Power System Check
To verify the symptom of the problem, power on the computer using each of the following power sources:
1. Remove the battery pack.
2. Connect the power adapter and check that power is supplied.
3. Disconnect the power adapter and install the charged battery pack; then check that power is supplied by the battery pack.
Attached are a couple of excerpts from the manual that may be useful. As they are from the 5310 manual the voltages may not be accurate.
May also be worth checking the connections onto the main board - I have highlighted in YELLOW the battery connector
BTW If I am incorrect about the similarities between the 5315 and 5310 please let me know and I'll correct the information accordingly.
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Hi Richdave! Thank you for you answer. The diagrams you attached look identical to my laptop. I took it apart today and noticed the following:
1) the DC-power jack has power according to the voltmeter.
2) thought the LED light in the front of the laptop does not lid up.
Unfortunately the battery has been discharged for a while and I can't try to power the laptop with it.
Do you think it's the motherboard that's bad? Any other ways to check for sure?
Are you getting power to the main board? Check the voltage on PJP1 DC-in Power Jack. The voltage between the RED and BLACK wires on the connector should be the same as on the power adapter. If not unplug the connector PJP1 from the board an measure again. If still not correct then the DC jack or associated cable may be faulty.
yes, i'm getting the power on PJP1 DC-in Power Jack. Same as on power adapter.
not meaning to butt in, just downloaded the schematic for your laptop on here. Just scroll all the way down to Documents and click on the link.
More the merrier oldturkey! I'll take copy of the diagram myself :-)
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Remove battery, remove ac adapter and open the lid of the laptop and press the power button.
Keep it pressed for 15 seconds with no power source attached and then release it.
Put in the battery and plug in the adapter: It should work fine provided there is no further hardware damage or issue.
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I was surprisingly shocked to see this work and very happy now!!!! Thank you thank you thank you!!!
You are welcome. You can post your questions on my profile for any technical issue with Pc.
This also worked with my aspire 5742z.
This just brought my ASUS q500a back to life. Can anyone tell me why this works though?
Yes, when laptop unexpectedly shuts down for some reason, as an inbuilt programming it tends to save the state to prevent further damage. Pressing power key without any power source discharges the power stored in electric components and then it starts from scratch rather than trying to restore to its original state.
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Reflow the northbridge on the motherboard and the computer will boot. The northbridge controls the 1/0 bit that tells the laptop to power on.
It happens alot on compaqs and acers.
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SecondByte, this was a great idea and worth of shot. Unfortunately, I either didn't do it right or smth else but it didn't work for me. I guess i'm stuck with buying a new motherboard. Thanks a lot for your input though, I'll remember this for the future.
Hi, If you pls explain how will i do this on my Lapi Acer Aspire E15 (E5-573G-340R), It has internal battery , I have unplug all screws and unplug the battery and plugin again to start every time. Pls suggest
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hi.,
i thought this might be helpful, since i also is a IT-Hardware specialist.,
some of the laptops and desktops that i repaired were mostly have a common problem when it comes to no power.,
try this >>
try to find th CMOS CELL attached to the MB and replace it.,
i hope this help, since you can identify the parts of the MB and since you have the schematic diagram on your MB.,
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My Acer Aspire One minilaptop has got problem in that, when I power on it doesn't respond and when I connect the charger the led in the adapter starts to blink and on testing the entire keyboard their is power connection. What could be the problem?
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Hello everyone
I have an acer aspire v15 when powering it up i will b on just for a fraction of second then turn off while still in charge its not working removing battery n then powering up all in vain can anyone help me please
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Same problem! The Battery is charging and LED is either orange (charging) or blue (charged). Nothing happens when I switch it on. I tried the 15 sec power button and disconnect the cable solution, when I release the button the laptop powers on, ACER logo appears on screen and after 4 seconds it immediately turns off! Help please. I assume there must be a problem on the MB or RAM?
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hello everyone ,
i think i have fixed it and i would like to guide you guys how i fixed it .
i just restarted my laptop . took the battery off and wait for like 2 min and plg the battery back and plug the charger also . press the power key for 10 sec and let it be turn on . if this did not work than try rebooting the laptop in safe mode . for any other steps visit Guide- FIX Acer laptop boot and power problems and see if this care to solve the problem .
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Hi I have 5311 Acer aspire laptop when plug in my com it is open and if not plug in my com will not be open can any one to fix this problem
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Tel me how I repair the power supply* Hit <enter> to insert another list item, and <enter> twice in a row to end the list. To get subitems, repeat the bullet character once for each level of indent you want (e.g. **)
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Volt Guru Electronics
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POSTED: 05/21/2013 OPTIONS
Reflow the northbridge on the motherboard and the computer will boot. The northbridge controls the 1/0 bit that tells the laptop to power on.
It happens alot on compaqs and acers.
Can you describe how to do this or provide a link with a diagram? I have an Aspire V3 with no power going to the motherboard. I have yet to take a look at the dc connection, as I didn't want to take the back off if I didn't have to. But since it seems that I have to, I would like to have access to all solutions during the tech apart, just in case. I have never re-flowed a laptop and don't want to do it wrong! Thanks kindly for your advice!
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Omg. I just realized that was posted four years ago.
I'll google it
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Hi . my english is bad .im sorry i do all things. light on change to light off after secound but my mother board is hot and work . i dont know why light is off again . my mother board is acer5742z
only when i put into freezer it usually work. some time and no allways
pls help me
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I have a laptop. This laptop gets very hot after running for a while. What should I do? Please help me.
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Try check if the cooling fan is working
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10 Commenti
DUDE!!!! Thank you!!! It worked!!!
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