johnisburt
Member
Last Activity: Yesterday, 10:13 AM
Joined: 04-01-2023
Location: Bath
-
All suspend transistors are on, any ide what is causing this or do you think the southbridge / ec chip could be faulty? -
Acer Aspire 5551 la-5912p not powering on
Hi guys, I have an issue with a laptop, it has power but wont power on.
I have all S5 power rails present and have check many other voltages, all seem ok.
I don't know what next to check, suspecting a southbridge issue maybe.
Can anyone give me any tips for this one.
Thank you
[COLOR=#8e44ad][B]Link to schematic[/B][/COLOR] [URL]https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/3460603-la-5912p-schematic[/URL]Hi guys, I have an issue with a laptop,...Last edited by SMDFlea; 09-13-2024, 08:12 AM. -
Small update, q7260 has burnt out when I plugged in the battery so either something on the battery circuit has caused it or this was faulty or maybe even u7201 I don’t know. Have to call this done for now.Leave a comment:
-
Charger is 60w
ive actually not checked pp5v_s3 (can’t see reg) but this is 0v
pp5v5 is at 4.99 so close is .6 in tolerance?Leave a comment:
-
And voltage is 4.99 today but still no power or fan spinLeave a comment:
-
G3hot 5.5v rail is 122k ohmLeave a comment:
-
Will check in morning, thank youLeave a comment:
-
Macbook 820-3330 no power or charging
Hi guys, how are you all?
I have a MacBook 820-3330 with no power and need a little help please.
I have the original charger that supplies 16v but doesn't light up at all. I also have a USB C charger and converter that does light up and provides 19v.
Both give me a 12v on board and i have 3.3v.
I have 5 volt but its at 4.7v.
I have 1 voltage that isnt present but dont know if this comes after power on, this is q7220 pins 6,7,8 0v, doesnt seem to have any switching voltages going in from u7201.
I will give you some readings that I have and we can go from there.... -
Re: Dell Latitude 7310 Bios Password 8FC8
Sorry for delay had to get another programmer. many thanks works great...Leave a comment:
-
Re: Dell Latitude 7310 Bios Password 8FC8
Hopefully the right one, please remove the password, thank you...Leave a comment:
-
Re: Dell Latitude 7310 Bios Password 8FC8
Hi guys, I have this laptop but which chip is the bios i need to get to please?Leave a comment:
-
Re: New Members - please post your introductions here
Hi I'm from the uk, i have always had an interest in taking things apart to see how they work. I have a small computer repair company and work as a courier for extra money.
I have a massive interest in learning more electronic repair and spend as much time as I can watching repair videos to gain knowledge.
Repairs with schematics are much easier but would like to learn more without the use of them. I think places like this will help.
I just want to get stuck in and fix stuff!!
I also do...Leave a comment:
No activity results to display
Leave a comment: