How To Repair A Switch Mode Power Supply Without Blowing It Up!

Video Description

Sometimes you can replace the faulty components in a switch mode PSU only to plug it in and watch your shiny new parts self destruct. I recently have this problem with a power supply that blew up even though it was connected to a current limiter (light bulb). Find out why this happens and how to successfully repair this type of fault 👉Click the link https://s.click.aliexpress.com/e/_EGDhRKk or enter the search code [AY4RYX] on the AliExpress homepage to find the latest money saving coupon codes or simply enjoy extra savings with the exclusive discount codes below, just for fans like you! 🌟 Remember, these codes can be used on almost all items in selected countries on AliExpress. IMPORTANT CHANGE: 📱 Previous phone categories were NOT available, but NOW phone categories ARE AVAILABLE in this new campaign! Codes valid until 4th December 2025 $3 off on orders over $29:【IFPOOKAP】 $6 off on orders over $59:【IFPHZLEC】 $9 off on orders over $89:【IFP1J3FV】 $16 off on orders over $149:【IFPG2Y76】 $23 off on orders over $199:【IFPLHKXC】 $30 off on orders over $269:【IFP1IPLR】 $40 off on orders over $369:【IFPZALA5】 $50 off on orders over $469:【IFPYSX48】 $60 off on orders over $599:【IFPQMQKT】 $70 off on orders over $699:【IFPQBIB1】 For All Your PCB needs: free $5 discount coupon https://www.pcbway.com/setinvite.aspx?inviteid=561767 Equipment used in my videos. These are affiliate links, you pay the normal price and I make a small commission. DM40C https://s.click.aliexpress.com/e/_c4q1dFy7 Aneng AN870 (Same as Zoyi ZT219) https://s.click.aliexpress.com/e/_oEInroF Zoyi ZT-DQ02 https://s.click.aliexpress.com/e/_oB2u3sT WinAPEX 268B Clamp Meter https://s.click.aliexpress.com/e/_opJTjEP VC480C+ MILLIOHM METER https://s.click.aliexpress.com/e/_onE0FaJ MESR-100 ESR METER https://s.click.aliexpress.com/e/_oombcej XC6013L CAPACITOR METER https://s.click.aliexpress.com/e/_omnOxub FNB58 USB ANALYZER https://s.click.aliexpress.com/e/_oneOfzl 4KV Breakdown Tester https://s.click.aliexpress.com/e/_omKXmND LED Backlight Tester https://s.click.aliexpress.com/e/_oCRPzdl NI-210SC Curve Tracer https://s.click.aliexpress.com/e/_o2e0Par NI210SJ (cheaper option but watch my review) https://s.click.aliexpress.com/e/_oD60O0D PCI POST ANALYZER https://s.click.aliexpress.com/e/_oBATbCF FNIRSI 1014D SCOPE https://s.click.aliexpress.com/e/_okTKV4x NPS3010W 30V 10A PSU https://s.click.aliexpress.com/e/_oDuHLdl Nice-Power Dual 120V 3A PSU https://s.click.aliexpress.com/e/_okGvYQ7 HR1520 Pro Short Killer https://s.click.aliexpress.com/e/_c2RE3ToB KSGER T12 Soldering Station https://s.click.aliexpress.com/e/_omqBjWR AIFEN-A9 PRO Soldering Station C115/C210/C245/C470 https://s.click.aliexpress.com/e/_ongFBEJ C470 Soldering Iron & Tips https://s.click.aliexpress.com/e/_opm1OND https://s.click.aliexpress.com/e/_oDVNACf QUICK 861DW https://s.click.aliexpress.com/e/_ooW7QGR PROS'KIT SS-331H https://s.click.aliexpress.com/e/_omxB5H5 Sequre HT140 Hot Tweezers https://s.click.aliexpress.com/e/_opH6KS3 KADA 853B Preheater https://s.click.aliexpress.com/e/_opPOUgX FNIRSI SWM-10 Spot Welder https://s.click.aliexpress.com/e/_ooZey3t INFIRAY P2 PRO IR CAMERA + MACRO LENS https://s.click.aliexpress.com/e/_ootcxPv TOOLTOP ET13S THERMAL CAMERA METER https://s.click.aliexpress.com/e/_oprvuP9 ET13S MACRO LENS https://s.click.aliexpress.com/e/_ol9d8hh Trinocular Microscope https://s.click.aliexpress.com/e/_okJictD TOMLOV TM4K AF FLEX https://s.click.aliexpress.com/e/_oBirts7 TL866 II+ PROGRAMMER https://s.click.aliexpress.com/e/_ooTmryb NC-559-ASM FLUX https://s.click.aliexpress.com/e/_onMlHRD DESOLDER BRAID (I use size 8045) https://s.click.aliexpress.com/e/_onhlLkx HX-T100 SOLDER https://s.click.aliexpress.com/e/_o2DHwJH ESD-11 TWEEZERS https://s.click.aliexpress.com/e/_om2F4w3 Learn Electronics Repair Discord https://discord.gg/vam6YC8vwU If you would like to support this channel You can send donations https://www.paypal.com/paypalme/youtubeLER You can subscribe to Patreon https://www.patreon.com/learnelectronicsrepair Or you can click JOIN to become a channel member Thank you Richard