Why Optocoupler's are used on Switch Mode Power Supply boards. True Optocoupler testing.
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5:39
How to Test a BAD Capacitor with a Multimeter on your Power Supply
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16:42
21L Capacitance Meter Demo
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28:07
How To Repair A Switch Mode Power Supply Without Blowing It Up!
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15:00
352 Feedback SMPS Switch Mode Power Supply, Optocoupler & Programmable Voltage Reference
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6:36
Perform testing of transformer oil | NIMI | DIGITAL | ENGLISH |
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26:50
Bypassing the PFC circuit.
![](https://i.ytimg.com/vi/XcOBKDxQsj8/mqdefault.jpg)
1:06:10
Power-One Regulated DC Power Supply Repair And Test
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56:29