Fixing something not worth fixing (Peltier fridge power supply)

Repairing a Peltier fridge power supply with a lot of blown components. It might not be worth fixing, but I've fixed it anyway. Switching power supply components replacement and substitution. Soldering SMD components. Testing a SMPS using a test load and a lamp in series. Discontinuous Conduction Mode (DCM) flyback switching power supply waveforms explained on an oscilloscope.

The previous episode:
https://youtu.be/scGqvasefWo

The thermal camera:
https://eu.topdon.com/products/tc002c-duo?ref=xisrleau&utm_source=affiliate

The USB tester:
https://www.fnirsi.com/products/fnb58?sca_ref=9216013.ntkg5GeG0R&utm_source=af&utm_medium=ref&utm_campaign=9216013

The internal resistance tester:
https://www.fnirsi.com/products/hrm-10?sca_ref=9216013.ntkg5GeG0R&utm_source=af&utm_medium=ref&utm_campaign=9216013

The 2-channel 180MHz oscilloscope:
https://www.fnirsi.com/products/dpox180h?sca_ref=9216013.ntkg5GeG0R&utm_source=af&utm_medium=ref&utm_campaign=9216013

My DIY test load:
https://danyk.cz/zatez2_en.html

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https://www.patreon.com/DiodeGoneWild

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