Re: A1390 820-3332-A No Backlight
Btw keyboard doesn't work (except for power key), and touchpad neither. Maybe it's all an SMC issue?
philo
Member
Last Activity: 03-10-2025, 08:19 PM
Joined: 10-25-2015
Location: Bs As
-
Re: A1390 820-3332-A No Backlight
Hey! Once again thanks for your help, really appreciate it. I also have the idea that the IC is bad, just want to make 100% it is before I can order it (it would take aprox 45 days to arrive to my country).
My new update: having those 12.54v on the backlight rail I decided to hook up and external PSU of 45Volts to the rail, but still the same result: no backlight. It stays in stable 45v with the external PSULeave a comment:
-
Re: A1390 820-3332-A No Backlight
Anyone?Leave a comment:
-
Re: A1390 820-3332-A No Backlight
If it helps I previously attempted this: I jumped (LCD_BKLT_EN) to PP3V3_S0 in the U9100 area, and at pin 1 of LCD connector (PPVOUT_S0_LCDBKLT) I got 12.54v....Leave a comment:
-
Re: A1390 820-3332-A No Backlight
Hey!
1) right
2) Reference voltages;
1> 12.56v / 2> 0.023v / 3> 3.33v / 4> 12.201v / 5> 0.001v / 6> 12.56v
3) 0v on L9710
4) 0v on pin 1 R9731
Thanks...Leave a comment:
-
A1390 820-3332-A No Backlight
Hey guys, i received this 15" MBP Retina previously touched by other messy hands. They previously attempted to disable graphics card but i removed the jumpers and took everything back as it was, I resoldered U8900 and got video output through the screen and loaded to operating system (throught HDMI it does give picture but somewhy it crashes before it can even load the progress bar, gray screen appears with "Your computer restarted because there was a problem").
Getting back to the issue, the chime sounds distorted, and still don´t have backlight (the water indicator... -
Re: Can anyone download bin dump file from vinafix? Acer E5 552
What I need is a working dump file though Acer's website rom updates partially and in a few words doesn't workLeave a comment:
-
Re: Can anyone download bin dump file from vinafix? Acer E5 552
Please Take a short time and open that zip file and decompress that exe file and you will see that theres no flashable bios. That file you uploaded can also be found on Acer's website. Why do i owe you an apology If i never disrespected you, i think its the other way,you camed here treating me with bad energy. Thanks anyway, maybe i am wrong...Leave a comment:
-
Re: Can anyone download bin dump file from vinafix? Acer E5 552
Please dont comment If you are not willing to help. If someone already has an account there he wont be annoyed to help me by sending the file, for my way of seeing Things. To be honest Whats the point of paying just to download Just Once one file in my life. Ive got a few backups that im willing to Share: [url]http://www.4shared.com/folder/tjqR2e6i/dump_bios.html[/url]Re: Can anyone download bin dump fil...re not willing...Leave a comment:
-
Re: Can anyone download bin dump file from vinafix? Acer E5 552
If you can download it and upload it here i would really appreciate it. Thanks!!!...Leave a comment:
-
Re: Can anyone download bin dump file from vinafix? Acer E5 552
Hi, alredy created an account and tried but it asks for money. To be honest it would be a waste Just to use it once in my life. Hope you can help me friend. Thanks!...Leave a comment:
-
Acer E5-552 bios
Hey, how are you? Im in need of bios bin dump file for Acer E5 552 but i cant find it anywhere except at vinafix. Could anyone download it from there and upload it here?
Aspire E5-522-8425
Model# N15Q2
DA0ZRZMB6D0 Rev D Board
AMD CPU A10
The file is Aspire E5-522 BIOS Version 1.08 from the following link: post #4
[URL]https://***********/threads/aspire-e5-522-zrzl.17274/[/URL]
Thanks to everyone for ur help!https://Hey, how are you? Im in need...vinafix. Could -
Re: Troubleshooting B&W Original Powersupply
Panasonic capacitors are part of the top greatest capacitors manufacturers along with Nippon Chelmicon, Rubycon, Nichicon, etc.Leave a comment:
-
Re: Insignia NS-32L240A13 POWER SUPPLY DEAD
Could you fix it? Or you had to replace it? ThxLeave a comment:
No activity results to display
Leave a comment: