I have been given an acer 5920g with a problem , When you plug the jack in the power adapter led blinks. I know this is a common problem with some acer models , has anyone dealt with these power issues .
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Re: acer 5920 g blinking power adapter
Originally posted by ablacon64 View PostCheck capacitors PC112 and PC118 near the memory slots. One of them (or both) may be shorted. Very common on that model.
After capacitor's replacement one of the motherboards is working great, but the other one only boot's after 6 retries.
When pw button pressed, the motherboard come and go for 6 times and then it boots fine and works perfectly.
If i shutdown or restart, then again only boot's after 6 retries.
Do you have any ideia of what may be causing this delay ?
Thanks
Regards
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Re: acer 5920 g blinking power adapter
Originally posted by ablacon64 View PostThe fax modem.
Put it in place if it's not or replace it.
But now i have another prob. with another 5920g and because you are so
qualified i would ask you some tips.
The problem is that notebook seems to start normally but nothing is displayed on video. (but i can ear windows welcome sound and i can connect to the notebook with remote desktop). I also tried to change video cards but nothing (the same video cards work on another 5920g). I also tried to connect external monitor but nothing no image come out.
Can you give me some help?
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Re: acer 5920 g blinking power adapter
Hi,
Thanks to you guys i was able to localise the bad caps PC112 PC118 and PC90 on the motherboard of my Acer 5920g.
After removing them everythings seems to work fine (Green LED on the PowerSupply doesn flash anymore and the Blue LED on the Laptop is working).
Now i want to know if i can run the laptop without those caps, or does i have to replace them before using the laptop?
On the follwing pages they are telling that the are "redundant":
http://www.fixya.com/support/t280473...or_green_light
http://www.fixya.com/support/t338288...tor_fix_doesnt
http://www.fixya.com/support/t899162...ot_power_power
Thanks in adavance for your help.
Greetings
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Re: acer 5920 g blinking power adapter
Don't take advice from fixya.Mann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.
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Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
- Dr Seuss
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You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
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Re: acer 5920 g blinking power adapter
Ok.... thanks for your warning!
I found those old articles from google...
Those articles just helped to localise the badcaps....
Can i test the laptop without those smd caps PC112 PC118 and PC90.
Or does i have to replace them? What about the values? I seems that my local dealer dont has exactly the same caps!
Thanks again in advance for your help!
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Re: acer 5920 g blinking power adapter
I wouldn't turn it on with missing parts unless you've traced the whole circuit and know it's okay.
If you are in the US check digikey.com and mouser.com.Mann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.
-
Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
- Dr Seuss
-
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
-
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Re: acer 5920 g blinking power adapter
Those capacitors are grounded, they mostly serve as a drain or filter to the parasite electricity around processor supply circuit. Although you won't have a problem leaving without them, it's not recommended. I can't remember right now but I guess they are 100uF 25v. Need to confirm.
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Re: acer 5920 g blinking power adapter
Like this.
http://search.digikey.com/scripts/Dk...=490-5308-1-ND
If those are in/near CPU socket they are probably across Vcore and used to filter RF noise [higher frequencies than ripple that come from EMI sources like CRTs, WIFI, Cell phones, electric motors] out of the power to the CPU.
[Desktops have these too but few people realize it. - Some processors put them on the CPU instead of in the socket.]
There are typically something like 10-20 [+] of those in parallel.
You can verify that's what they are by finding a bunch of others in parallel with them by doing continuity checks using a DMM.
If there are a bunch of good ones in parallel then leaving a few out for a short time shouldn't hurt anything as long as you stay clear of EMI sources, but I wouldn't leave it that way permanently.
.Last edited by PCBONEZ; 06-12-2011, 04:21 PM.Mann-Made Global Warming.
- We should be more concerned about the Intellectual Climate.
-
Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind.
- Dr Seuss
-
You can teach a man to fish and feed him for life, but if he can't handle sushi you must also teach him to cook.
-
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