Well done cracking the case open without damage. It's always frustrating when you can't identify an exact root cause, but at least you saved it from landfill. A big thumbs up for your method of powering it up safely.
I have this old IBM laptop power adapter I've been using with one of my battery chargers, but unfortunately it stopped working, so in this video I will attempt a repair.
i have this smps with my old thinkpad ,please if you can list the names of the transitors or mosfets used ,i have one that is broken ,it is located near the transformer
I only have the number for the switching controller IC, it's in the video, the large component near the transformer on the back is a diode, I'd think any 5A+ schottky diode will work. I'd recommend using the voltage injection method if you are testing. Cheers, Jake
Well done cracking the case open without damage. It's always frustrating when you can't identify an exact root cause, but at least you saved it from landfill. A big thumbs up for your method of powering it up safely.
Thanks, yeah I would've liked to find an obvious fault, but happy it's running again.
I have this old IBM laptop power adapter I've been using with one of my battery chargers, but unfortunately it stopped working, so in this video I will attempt a repair.
i have this smps with my old thinkpad ,please if you can list the names of the transitors or mosfets used ,i have one that is broken ,it is located near the transformer
I only have the number for the switching controller IC, it's in the video, the large component near the transformer on the back is a diode, I'd think any 5A+ schottky diode will work. I'd recommend using the voltage injection method if you are testing.
Cheers,
Jake