great info but still not working
wideon
Member
Last Activity: 02-07-2016, 11:34 PM
Joined: 02-20-2013
Location: England
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Re: acer 2920 blinking power source
great info but still not working
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Re: acer 2920 blinking power source
please explain on how to test the diode
on or off the boardLeave a comment:
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Re: Presario 2170 power issue
try and take out the ram and give it a clean also check the fans are not clogged up with dirt and dust try that
just reread your post scrap that idea is there voltage coming in via the dc jack
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Re: acer 2920 blinking power source
ok as advised i removed U2 and now there power getting in to the board 19v so i just need to replace that any idea where i can get one or can i get one from a old laptop as there no stock based in the ukLeave a comment:
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Re: acer 2920 blinking power source
yes it has that please adviceLeave a comment:
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Re: acer 2920 blinking power source
but i see U2 in there but no U3 would i have to repace both of these as thay both are getting very hot
[ATTACH]58631[/ATTACH]...Leave a comment:
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Re: acer 2920 blinking power source
i found this too is a schematic for my noard is anyone can help me out
[ATTACH]58626[/ATTACH]...Leave a comment:
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Re: acer 2920 blinking power source
2000k ohms one way 301 other way 299 readings
on diodeLeave a comment:
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Re: acer 2920 blinking power source
ok when are you back online as i really need to get this sorted
is on the mofsets
p2003evgLast edited by wideon; 02-20-2013, 04:58 PM.Leave a comment:
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Re: acer 2920 blinking power source
[ATTACH]58612[/ATTACH]
here is a picture as requested
the 2 red ringed ic are getting very hot when power supply is added
board is empty nothing attached like cpu , memory nothing
there marked u2 and u3 dose anyone have any idea what there used for and can this ic cause a short ..... i.e flashing power supply on and off
think there called mosfet but have no idea as cant see the print on the ic
anyone have a idea what thay are called and will that cause this proble...Last edited by wideon; 02-20-2013, 04:39 PM.Leave a comment:
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Re: acer 2920 blinking power source
picture of what
yes English is my first language
but my spelling is very bad
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Re: acer 2920 blinking power source
that's what i am hoping yes i everything with everything removed and the same
i need a acer expert to help
impossible to trace the power as it flicks on and off so to trace the power is impossible really it has to be shortedLeave a comment:
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Re: acer 2920 blinking power source
i have tested with a another power surpire and same results
19v strong on the muilt voltage belkin muilt power suppire i use as a testerLeave a comment:
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Re: New Members - please post your introductions here
im wideon a useless repair laptop dude
saying hello and help
wordLeave a comment:
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acer 2920 blinking power source
acer 2920 blinking power source just flashing no power getting to main baord
it just flashes the power suppier unit is connected and not getting voltage it gets like 3v then flashes and turns off
laptop dose not start i can see the board has no water damaged
its like a full short is there ant common caps that cause a short
i have fully stripped the laptop and im guessing there bad caps somewhere in the board maybe someone has an any idea how how i can get this board running again
please any info would be great
just...
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