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Re: asus x55A no power
maybe u forgot to attach somethingComment
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Re: asus x55A no power
found something, you never know until you try.Comment
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Re: asus x55A no power
Greetings to the forum,I have a problem with my laptop Asusx55a?The problem is laptop does work in the charger,only work on battery,and when the battery is charged with the other laptop, when i put in my laptop and turn on the laptop,discharges battery and should be to recharging the battery ?means works until the battery in use,when is empty battery laptop not working or want to charge???? Please Help Meeeeee :-) RegardsComment
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Re: asus x55A no power
Problem is solved. You have bad "mosfet" on matherboar behind the DC input. Replace the bad mosfet and that's it. On the video is a burning mosfet, bad you have a bad mosfet.
https://www.youtube.com/watch?v=rwIq6ZnHIR4Comment
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Re: asus x55A no power
Asus X55A No power, No leds, Wont charge. Checked 5V and 3V (3V can be measured at Bios chip if you have no schematics) all voltage present. Checked CMOS battery: BOOM 0.3v. Replaced battery and laptop now works. Always check simple things first folks!Comment
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Re: asus x55A no power
I have problem with this laptop, have someone schematic?
I changed charger ic, two mosfets, and I haven't voltage on first mosfet Gate.
Only power led blinks.
MB is: X55A rev 2.2Comment
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Re: AsUS x55A no power fix
i replace mosfet A5 GNC 100M01 with M0930M
and laptop again working but automatic go to bios no booting windows restart i will try to format and install new windows or motherboard again have some problem on board one mosfet CDJ0961 near to processor give me short to ground i don't know it is this correct inductor and smd capcitors on multimeter give me shorted beep
Attached FilesLast edited by risting; 06-07-2021, 10:00 AM.Comment
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Hi all,
TL;DR - this laptop is driving me nuts with the oddball power-related behaviors. Appreciate any insight you can provide!
I'm experiencing a power issue on an Asus Probook P5440UF-XB74. Although I've worked with electronics and computers for decades, this is my first attempt at getting into motherboard-level component troubleshooting. Any help the community can provide is greatly appreciated!
A few weeks ago I was using the laptop (on battery power) for a Zoom meeting. The battery was running very low (long meeting) but I wasn't worried about... -
Hello everyone, I have an ASUS FX506LI laptop that does not turn on, and I need help diagnosing the issue. Here is what I have checked so far:
Initial Symptoms:- The laptop has no power at all (no LEDs, no fan spin).
- No 3.3V or 5V present on the board.
- The power button (NBSWON#) reacts but only changes from 0V to 0.5-0.11V.
- Charger input (FETs PKCH2BB)
- Drain: 20V, Source: 0V, Gate: 0V (FETs not switching).
- BQ24780S Charger IC:
- VCC and ACDET are present.
- ACN / ACP, ACDRV, BATDRV, LODRV, HIDRV, ACOK, SRN, SRP – all 0V.
- Shunt resistor has 10Ω to ground.
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Vizio e601i-A3 - Has Sound and Display, But No Backlight - Bad Power Supply Board or Bad LED Bulbs ?I was given this TV from my great uncle. He said it just wouldn't turn on one day out of nowhere, replaced the TV, and gave it to me to possibly fix and use for myself.
Upon bringing it home and plugging it up, it showed a standby light.
I powered it on and without a flashlight, the display showed the "V" but the lighting is very dim, but visible.
The screen seems to blackout and stay black, but with a flashlight I can see the display.
With my Playstation 4 connected via HDMI, and running a game I can hear sound.
Assuming... -
Hi all!
I'm trying to troubleshoot a Microsoft Surface Pro (5th gen) model 1796 that won't power on. Motherboard model is M1007506-015. My priority is retrieving data, but the SSD is integrated so it looks like if I can't repair it it'll need to go to a data recovery company. I've done a little basic board repair before, but nothing this advanced until now. So please forgive my ignorance in advance. 😅
I found the boardview for this laptop in the forums here, and am able to open it on my PC with FlexBV.
https://www.badcaps.net/forum/troubl...-hardware-devi... -
Hello, I have an issue with the motherboard. Specifically, it doesn't power on, more precisely, the POST initialization doesn't occur.
Let me start from the beginning, the motherboard suddenly stopped working one day. There are no beep signals from the speaker, and the debug LEDs are not lighting up. After inspecting it under a microscope and using thermal imaging, I didn't find anything that could be damaged.
After that, I began voltage measurements, in which I noticed the absence of VDDQ, VDDP, VTT, and VPP lines. Later, I checked if there is an EN state on these lines,...
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