ux31a2 no power, except 19v. Nothing short, nothing hot. Any idea?
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Re: ux31a2 zenbook no power
Supply on battery connector pin 12456
Supply on power BTWN
Bios pin 8Comment
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Re: ux31a2 zenbook no power
zero power anywhere. Battery zero, button zero, bios zero. No power at all, nor for seconds, witch supply should cames on first?Comment
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Re: ux31a2 zenbook no power
Test PQ8801 mosfet pin 1.2.3.4.5 Voltage
PQ8802 pin 1.2.3.4.5 Voltage
PJ8803 jumper Voltage?Comment
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Re: ux31a2 zenbook no power
Hi techtiger, PQ8801 not conducting. PQ8802 conducting. Shorting PQ8801 device work. Battery voltage 1V, seems not charging. BQ24725 fail, or battery fail? It is possible, only the battery fail? PQ8801 why not conducting, while PQ8802 conducting -> PQ8801 fail? If yes why not charge?Comment
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Re: ux31a2 zenbook no power
voltage in pin 12346 BQ24725 as for the PQ8801 is a Nchannel mosfet Gate should be high to by pass 22 to 25V pin 4 of BQ24725 is supplying it
test pc8805 PR8801 PC88012 with Voltage and out V mesure resiestence
test PQ8805 diode mode for shortComment
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Re: ux31a2 zenbook no power
Thx. PQ8801, PQ8802 one of them has G-S short. Other parts ok. Battery?Comment
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Re: ux31a2 zenbook no power
Battery is charging now, thx techtiger! I got a little scared of it
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Re: ux31a2 zenbook no power
Glad to hear is the laptop working properly if so Merry ChristmasComment
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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... -
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... -
I have wanting to do this project for quite sometime now and I finally found a switching power supply that will work on this desoldering gun station ZD-915 that the original switching power supply took a shit and just was not worth trying to fix it because this switching power is not quite big enough to handle the heater element and the vacuum pump
One note when I tested the switching power supply and the voltage control board I noticed that this desoldering gun heat up much faster than the original switching power supply which I was really surprised by to the point that I might buy... -
This specification for the HP Pavilion Power Pavilion Power 15-cb009nl 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 Pavilion Power 15-cb009nl boardview and Pavilion Power 15-cb009nl 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...09-06-2024, 05:59 AM
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