electronic_component_testing_cheatsheet
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electronic_component_testing_cheatsheet [2022/03/02 22:15] sausage Remove gas tubes for now. |
electronic_component_testing_cheatsheet [2022/03/02 22:38] (current) sausage [Conclusion] |
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| For capacitance tests, always best to test off the PCB if possible, though you can be lucky on the board. Use the capacitor test on your multimeter if you have one, and if you get the expected reading in nano-farads or micro-farads, then all well and good. | For capacitance tests, always best to test off the PCB if possible, though you can be lucky on the board. Use the capacitor test on your multimeter if you have one, and if you get the expected reading in nano-farads or micro-farads, then all well and good. | ||
| - | For ceramic caps on the board, sometimes I like to test these using a continuity test. Placing the probes at either end, there will be a short beep at the cap charges, and will stop when it reaches capacity. Swap the leads around and it will beep again until it reaches capacity. | + | For ceramic caps on the board, sometimes I like to test these using a continuity test. Placing the probes at either end, there will be a short beep as the cap charges, and will stop when it reaches capacity. Swap the leads around and it will beep again until it reaches capacity. |
| If you get an unexpected readings for any cap, remove from the board and try again after discharging it. | If you get an unexpected readings for any cap, remove from the board and try again after discharging it. | ||
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| ===== Transformers ===== | ===== Transformers ===== | ||
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| + | <WRAP center round alert 90%> | ||
| + | Transformer voltages can be very dangerous. This section assumes there is no power and the transformer is removed from the circuit. | ||
| + | </WRAP> | ||
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| Transformers are a whole can of worms (actually a can of iron and copper), so I won't go into great detail here. I'll just outline the regular steps you can take for sanity testing a transformer. | Transformers are a whole can of worms (actually a can of iron and copper), so I won't go into great detail here. I'll just outline the regular steps you can take for sanity testing a transformer. | ||
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| A massive thanks to Wayne@WaynesWorld, Andrew V and Keystone for proofing this article. Really appreciate it. | A massive thanks to Wayne@WaynesWorld, Andrew V and Keystone for proofing this article. Really appreciate it. | ||
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| + | ===== Coming Next ===== | ||
| + | PNP transistors :: Gas Discharge Tubes | ||
electronic_component_testing_cheatsheet.1646259324.txt.gz ยท Last modified: 2022/03/02 22:15 by sausage
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