I have a acer one d270 , the problem is if i used bench lap supply the laptop works fine, but when i used a charger laptop cannot turn on.I already tried good chargers and original charger but still same issue. does anyone encounter this please help
-
-
Re: acer one d270 problem
test with the original charger ISL88731C pin 2 13 22 -
Re: acer one d270 problem
original charger plugged in pin2=0v pin13=6.25v pin 22= 4.9vComment
-
Re: acer one d270 problem
ACIN Pin 2 AC Adapter Detection Input. Range zero to 5.5V.
ACOK AC Detect Output. This open drain output is high impedance when ACIN is greater than 3.2V. The ACOK output remains low when the ISL88731C is powered down.Range 3.3V to 5.5V.
Find out if the Fet PQ38 Drain Voltage with the Original Adapter what is the Voltage on same pins with the Bench lab supplyComment
-
Re: acer one d270 problem
ok i tested PQ38 with bench lab and original charger both pin1-3 have 1-3 have 19v pin4=9.5v both pin 5-9 have 19v , but the weird problem is the laptop turns on if bench lab uses but with the original charger cannot turn onComment
-
Re: acer one d270 problem
Check the voltage with the Bench Lab ISL88731C pin 2 13 22 , do you have another original charger to testComment
-
Re: acer one d270 problem
the diferrence on ISL88731C same on pin2 and pin 13 but different on pin22 on original charger 4.9 with bench lab plugged in pin22 is 10v.i already tried 3 original chargerLast edited by String2016; 09-18-2019, 09:23 AM.Comment
-
Re: acer one d270 problem
anyone can help on this pleaseComment
-
Re: acer one d270 problem
pin64 of kbc-measure voltage with original adapter and bench psu.Comment
-
Re: acer one d270 problem
with original charger kbc pin 64 0v with bench lab 3.3vComment
-
Re: acer one d270 problem
As you know acin should be 3.3V. You need to probe resistors connected with pin 2 and pin13 of charging IC. maybe one of them is bad.
PS: I'm assuming your mb is quanta ZE7 as you have not mentioned the exact platform.Comment
-
Re: acer one d270 problem
yes motherboard is ze7Comment
-
Re: acer one d270 problem
in the pin13 on the charging ic it has two resistors connectedComment
-
Re: acer one d270 problem
@mcplslg123 thank you very much for the advise, i trace the resistor connected to pin 2 and pin 13 of the charging ic one is bad no ohms value, replaced it now its working fine with original charger , thank youComment
happy to help you.
-
This specification for the Acer Extensa EX2540-56BF + PowerCube Original Notebook can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the EX2540-56BF + PowerCube Original boardview and EX2540-56BF + PowerCube Original schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer...09-06-2024, 08:16 AM
-
This specification for the Acer Aspire Aspire 9920 G-933G64HN can be useful for upgrading or repairing a laptop that is not working. As a community we are working through our specifications to add valuable data like the Aspire 9920 G-933G64HN boardview and Aspire 9920 G-933G64HN schematic. Our users have donated over 1 million documents which are being added to the site. This page will be updated soon with additional information. Alternatively you can request additional help from our users directly on the relevant badcaps forum. Please note that we offer no warranties that any specification, datasheet,...09-06-2024, 05:27 AM
-
Hello,
YouTube video of the problem encountered: https://youtube.com/shorts/q7TLNv36LUo
I am a pro and I have a problem that I have never seen despite my 7.5 years of experience on my own and my thousands of repairs, on a customer's Dell G3 15 3500.
On this PC I have already changed the complete palmrest because the keyboard was no longer working properly.
I also changed the screen because the PC fell and the screen was broken.
I changed the battery with a new and original battery.
I also had corrosion/oxidation on the... -
I have ACER Nitro 5 model AN515-51 main board model LA-E911P Rev 1A after replacing the mainboard keyboard stop working properly.
Some keys not working like Q,Z,C and some keys show deferent chr$ if i press K i will get I press D for F4 key etc...
i have tried all software issues like drivers test the keyboard on Windows 10 and Windows 11 and Linux with same problem.
I have check the keyboard connector on the mainboard every thing looks ok.
Then i replaced the keyboard with new one ......same problem exact same keys problem.
I need your advice if anyone face... -
I have acer laptop tmx314-51 with part no 6050A3020501.
The laptop is working fine on adapter and battery is also charging and when adapter is disconnected in on state the laptop gives backup on battery and gives good backup.
But when laptop is powered on through battery only the laptop does not power on and there is 0 voltage on battery connector.
I have not not tried another battery as it is not available locally could this be a battery problem.have checked discharging mosfet and there is no shorting to ground on any pin of battery connector.
The schematic is not available...
Comment