Hi,
I'm a noob trying to fix my sub-woofer.
I have obtained some simple tools and the circuit diagram, but have seen some odd behavior with one/some of the capacitors.
The problem is I don't know enough, to know what terms I should be searching for (so I can understand what happened).
Issue:
I used a simple "multi-function Tested T7" to check some of the capacitors (in circuit). Specifically a "330uF 10V JWCO" electrolytic capacitor, with my tool stating it was:
"304uF ESR=0.39 VLoss=15%"
I know that measuring in circuit is not ideal, so I de-soldered it and tested it again. This time it measured with a "VLoss=1.6%"
I soldered the capacitor back into the circuit and tested it again. It measured with a vloss of 1.6%.
Does anyone know why (or what I should search for to explain), the measured vloss went from fifteen percent, down to one point six percent?
Or is it just a bad cap? i.e. should I just replace the capacitor with a new one?
Thanks in advance.
I'm a noob trying to fix my sub-woofer.
I have obtained some simple tools and the circuit diagram, but have seen some odd behavior with one/some of the capacitors.
The problem is I don't know enough, to know what terms I should be searching for (so I can understand what happened).
Issue:
I used a simple "multi-function Tested T7" to check some of the capacitors (in circuit). Specifically a "330uF 10V JWCO" electrolytic capacitor, with my tool stating it was:
"304uF ESR=0.39 VLoss=15%"
I know that measuring in circuit is not ideal, so I de-soldered it and tested it again. This time it measured with a "VLoss=1.6%"
I soldered the capacitor back into the circuit and tested it again. It measured with a vloss of 1.6%.
Does anyone know why (or what I should search for to explain), the measured vloss went from fifteen percent, down to one point six percent?
Or is it just a bad cap? i.e. should I just replace the capacitor with a new one?
Thanks in advance.
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