15 ms·
As others has mentioned, an ESR is the way go for capacitor diagnosis. Usually you can find the capacitor by determining the symptoms. For instance, if the pow
by syntaxing 8y ago
As others has mentioned, an ESR is the way go for capacitor diagnosis. Usually you can find the capacitor by determining the symptoms. For instance, if the power indicator turns on then off, it's probably near the power supply and filter circuit. That being said, it can get super dangerous repairing old vintage machines since there can be a huge ass capacitor upstream you do not notice. Always discharge your capacitors before you work on them!!
- kevin42 8y agoThe ESR meter is like magic! I have fixed a ton of discarded electronics by replacing bad capacitors I found with my ESR meter. Several years back I bought a whole lot of broken test equipment dirt cheap and fixed about 75% of it and resold for a nice profit. Almost everything was fixed with new capacitors. A few years back my oven died suddenly. I popped open the cover and went through all the electrolytics with my ESR meter and found a bad one. I had exactly that value in my parts bin, replaced it and the oven worked like new. The total cost of the repair was less than $1.
- Scoundreller 8y agoAny recommended ESR meters?
- syntaxing 8y agoThe blue ESR meter is pretty famous [1]. [1] https://anatekinstruments.com/products/fully-assembled-anatek-blue-esr-meter-besr https://anatekinstruments.com/products/fully-assembled-anate...
- blattimwind 8y agoRarely ESR stays in the acceptable range while the actual capacity is widely out of spec.