I know I've been a little scarce lately (like the last 2-3 years), but I'm still here and still doing my thing with fixing PSUs.

For today's considerations, I have a Seasonic B12 BC-550 [A551bcafh] 550 Watt ATX power supply for you (click on links for full size images).

https://www.badcaps.net/filedata/fetch?id=3591771


https://www.badcaps.net/filedata/fetch?id=3591772

It's a modern ATX unit with fixed (non-modular) cables and an 80-plus bronze certificate. Here's the label:

https://www.badcaps.net/filedata/fetch?id=359177...

Hi:

I am trying to repair this ATX SMPS and I realised once I've replaced the 5V IC that also the coil is gone.

Where (and how) do you look for these parts? same piece or similar that I could try to use it? is it worth it? :-)

Regards,
Francesc....

Hi to all forum members,

Got this faulty 350 watt atx psu dirt cheap from a local online seller as i am keen to use it as a learning tool to repair faulty power supply.
The faulty part is quite obvious from the burn area near the 16pin KA7500 BD pwm. The fuse is still intact with good continuity.

Upon power on ac, there is 5vdc standby power on cathode of diode D14 and about 10vdc on cathode of diode D13.(This should be the aux power to generate the 12v and 5v rail.)
Initially i replace the two burned resistors near my marked red arrow to 200 ohm resistor...

I have old game console which have connected to 220v outlet by previous owner and It is not able to turn on.

I checked continuity of fuse in PSU unit with a multimeter which is shown in the below picture with a orange circle around it, and It seems that fuse became open circuit.

I also found that as well as bulging capacitor, there is unidentified coil which has residue all over its surface

unidentified coil which has residue all over its surface


I want to replace this round black fuse and unidentified coil if it got broken.
...

Hi all, I picked up a liquid damaged Asus TUF Gaming F15, does not power on, model FX506HM-HN004T.

Ive gone as far as removing the case and doing a visual check, there is no visible corrision, upon plugging in the power brick a single led light shows that power is plugged in, but no display or fans, the PCH chipset gets warm/hot to the touch, could this mean its not fixable or do I proceed and remove the motherboard completely and check further for shorts etc, failing that should I just take it to a service centre and go from there

what would you do? my skillset is...