Switch Mode Power Supply / Battery Charger Repair KT12SM
87K views · Dec 3, 2022 · Howto & Style
Comments · 199
@MrEwool · 3 years ago
Loved the Disclaimer. Great video and I like the way you guide us through the process from start to finish, keep up the good work and looking forward to seeing more
9
@SlartiMarvinbartfast · 3 years ago
Small tip - when testing fuses always check it by way of the contacts of the holder that the fuse is fitted into - I say this as sometimes the fuse may not be making good contact with the holder at one or even both ends, usually because of some corrosion that can't be seen.
50
@Woodyjims-shack · 3 years ago
Wish I knew more about how to diagnose and repair these boards. Thanks for sharing👍
11
@iblesbosuok · 9 hours ago
There is a current transfomer in this SMPS.
@roymeynell9198 · 2 years ago
Good fault finding very logical
2
@brucekempf4648 · 1 year ago
Wow! Great video. I would never have thought the controller chip was the problem. I also would have thought those FETs were bad without that component tester. Thanks! I'm troubleshooting one now.
3
@jasongreene303 · 3 years ago
The best fine print that I have read in it's entirety! Of course it's the only one for good reason
1
@gadgetmind · 2 years ago
I got a very fancy Pioneer XM-72 receiver at a Repair Cafe and the switching chip (with built in MOSFET) had blown its top off. Nothing we could do there, but I later found a schematic, contacted the owner and he bought a couple of the ICE3BR0665J on eBay. When he brought it to the next cafe, I swapped that chip, and also two small (3216) SMD current sense resistors, and two diodes in the bridge rectifier, and finally the fuse, and it powered up first time.
7
@mariusmac2005 · 2 years ago
😂😂😂 best disclaimer off all time 👍👌👏
1
@FixthisCD · 3 years ago
cool description of SMPS.
2
@ewanbaxter9199 · 2 years ago
After watching this it encouraged me to have a go at fixing my 12 volt to 240 volt inverter that had been lying around in my cupboard. When I connected the battery after I had finished it exploded spectacularly, like a firework, but at least I learnt a few things. Enjoy all you videos
12
@gary2300 · 1 year ago
Well done, Captain!
1
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