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Hello,

this is my first post at Badcaps and in general i am new to fixing electronics. I am looking forward to learn a bit more about diagnosing and repairing :-)

What I have around is a DELL OPTIPLEX 3060 Micro (USFF), which is not powering on, even not showing any signs of life (No amber / white LED).
I got a original 65W DELL PSU / Power brick (PA-12 / 074VT4) which hopefull should be the correct one. I could get another DELL PSU with the Partnumber 0G6J41 with the same 4.9mm DC Jack connector as the one I already have, but I dont think that would help (maybe...

Hey guys, I have an Asus gaming laptop. It arrived with a short circuit on the 20V rail due to a failed attempt to restore the backlight. I resolved the short circuit, but when I connected the charger, the laptop wouldn't turn on. I also noticed overheating on the 3V and 5V power supply. After a few hours of diagnostics, I identified the faulty component: the IT8308FN, it seems to be a GPIO expander for EC. This component got damaged and caused a short circuit on the 3V LDO rail, causing the power supply to overheat due to the overcurrent.

My question is: is this IC reprogrammable,...

Hi everyone,

I’m working on a Denon AVR-X4000 that goes into protection mode (fast red blinking LED) shortly after the second relay click.

According to the service manual, a fast red blinking LED indicates a DC detection (DC_DET) or ASO (abnormal current) fault, meaning the unit is detecting a potentially dangerous condition on the power amp or power supply side.

Here’s what I’ve done so far:

• Fully opened and cleaned the unit (a lot of dust inside)
• Removed and visually inspected the AMP board → nothing visibly damaged or burned
• Testing is done with

...

Hi,
I have a DA0BKXMB8D0 rev D motherboard.
There is a short circuit on the 1.8V line.
During the short-circuit test, absolutely nothing getting hot, board take 3A.
What can I do now?

I've a FXMC motherboard with a short on the DCBATOUT line.The moment the charger is plugged in to the board, it will block itself for protection. I have remove PR4402 for isolating the short, and making sure the short doesn't come from AD+_TO_SYS.
Schematic:
https://www.badcaps.net/forum/troubl...=112466&nojs=1...