Re: Acer Aspire VN7-792G-70SU-power issue
Thank you for you response .I've changed u4401 no luck.
djems3
Member
Last Activity: 08-04-2024, 06:48 PM
Joined: 11-07-2014
Location: LONDON
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Acer Aspire VN7-792G-70SU-power issue
Motherboard Newgate_SLS -GDDR5.
Laptop came dead.I disconnect battery Laptop started with adapter.Battery
voltage was 0v.I replace the battery ,but when i plug the new battery red
light comes on without charger .if is pluged just battery again Laptop starting but if i
plug charger again laptop goes off,red light goes off as well.
It works only from adapter or only battery .When both are pluged in not starting.I change charging IC but problem still exists.IC IS BQ24780S.
Could i have any ideas please Thank you....Last edited by djems3; 09-03-2021, 10:10 AM. -
Re: 820-01521 schematic
Thank you very muchLeave a comment:
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Re: Dell J728N 2700w UPS-Battery disconnected
NO broken path between them.Broken connection because of corrosion .From
this resistors reading battery voltage R17-R18 and R27-R28.Last edited by djems3; 04-12-2021, 11:57 AM.Leave a comment:
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Re: Dell J728N 2700w UPS-Battery disconnected
Thank you Petehall347 for your answer.I've done it. Problem was broken way between
R17 and R18 because of moisture....Leave a comment:
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Re: Dell J728N 2700w UPS-Battery disconnected
Does someone has schematic for this model or any similar please.Thank you.Last edited by djems3; 04-07-2021, 01:06 PM.Leave a comment:
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Re: Dell J728N 2700w UPS-Battery disconnected
All fuses are ok.I've done reset of alarms and factory reset.Leave a comment:
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Re: Dell J728N 2700w UPS-Battery disconnected
When i start outputs in 3-5 sek. start " Alarm #28 DC link Over voltage"Leave a comment:
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Re: Dell J728N 2700w UPS-Battery disconnected
Battery pack has 106v.Every battery have 13.24-13.27 voltsLast edited by djems3; 04-07-2021, 12:18 PM.Leave a comment:
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Re: Dell J728N 2700w UPS-Battery disconnected
Battery voltage in the menu is 60v 13% goes up....Leave a comment:
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Dell J728N 2700w UPS-Battery disconnected
Hi .Can anyone help me about this UPS please.
It wasn't any problem on it before customer said.He just left it on the side for couple of
months.After they replaced batteries for following use.
now it says" battery disconnected" alarm #199.
Batteries voltage is 106v
charge level level goes up.Thank you.... -
Re: A1398 EMC2745 -clean me please
Doesn't start with this bin .Thank you.Leave a comment:
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Re: Need help for bios a1398 emc 2674 N25Q064A
Try ....I'm dealing with same board probably.My one start but is slow....Leave a comment:
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Re: A1398 EMC2745 -clean me please
C02LP0Z0FD59-back is replacement as well.Can't by rigth serial .This match with 2.6 GHz Core i7 (I7-4960HQ).Last edited by djems3; 02-26-2021, 08:49 AM.Leave a comment:
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Re: A1398 EMC2745 -clean me please
Right EMC is 2674 ,ME293LL.I wrote dump it start but is very slow ,
i have errors on diagnostic menu
reference code:PPM002
additional reference code :PPM003,PPM004
Do i have to change all memory ic's or still my wrong bios?
Thank you.Leave a comment:
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Re: Need working bios for Dell 5520
Try .....Leave a comment:
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Re: A1398 EMC2745 -clean me please
Same.I just would like to add more info board is 820-3662-03.Processor 2.0 GHz Core i7 (I7-4750HQ).S/N in my original bin file doesn't match to this Processor . It match to 2.3 GHz Core i7 (I7-4850HQ) ,this mean my file is not original it been changed.All three S/N are different.Under palmrest,back cover and in backup file.Label on the board is missed .What could i do now?Please for any suggestions please.
Thank you.Last edited by djems3; 02-25-2021, 03:10 PM.Leave a comment:
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Re: A1398 EMC2745 -clean me please
Thank you for your help .Doesn't start with this file .Fans spinning for 4-5 sec and goes off.Leave a comment:
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A1398 EMC2745 -clean me please
Hi can i have a cleaned me region and password please.
Thank you.... -
Re: 820-3787-a stuck on half installation
Same .Thank you .Applesupport.com/-5101f from internet
and half installation from external hard....Leave a comment:
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