I recently got this old working GE clock/radio but I found something odd. I had to take it apart (it really needed cleaning) and I found a blueish green substance on the board, it looks like it came from the film capacitors shown below. After taking them out I was able to easily clean up the mess (no corrosion happened), but I'm wondering if I should replace the green caps.
Is this a problem that should be addressed? Or should I just reinstall the capacitors and forget about it?...
x32
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Last Activity: 06-10-2016, 11:18 AM
Joined: 07-06-2011
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Bad film capacitors?
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Re: Finding out "Ripple Current" rating
DAMN! I should have asked this question much earlier...
I finished converting the ripple rates, I'm now going to go ahead and order the caps. Thanks a lot PCBONEZ for your help. -
Re: Finding out "Ripple Current" rating
All the Chang power supply caps are KM series, I now have the ripple rating's but I could not find the ESR in the chart. Do I just match the tangent instead?
[i]Sorry for posting this question so late, I got sidetracked by something else...[/i]Re: Finding out "Ripple Current" rating
All the Chang power supply caps are KM series, I now have the ripple rating's but I could not find the ESR in the chart. Do I just match the tangent instead?
[i]SorryLeave a comment:
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Re: Finding out "Ripple Current" rating
Nope, no series indication on any of the Chang caps....Leave a comment:
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Re: Finding out "Ripple Current" rating
Thanks for the links, I'll go ahead and bookmark them.
I re-checked the caps for a series number but oddly there isn't one. Only the caps on the logic board has a number but those are made by a different brand.
Since all the Chang caps are in the power supply, should I aim for replacements with the lowest ESR?Last edited by x32; 08-22-2011, 05:41 PM.Leave a comment:
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Re: Finding out "Ripple Current" rating
I'm asking because I noticed when looking for caps on Digikey, that they have a ripple current rating in the specifications, and I don't know if I should be worried about what rating I'm getting.
The caps I'm replacing are the aluminum electrolytic type's.Last edited by x32; 08-21-2011, 09:29 PM.Leave a comment:
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Finding out "Ripple Current" rating
Hello,
I have CM-7000 converter box that I want to re-cap.
I've read FAQ's so I do have a good idea what I need to do. But one thing I'm not sure about is what "Ripple Current" rating I need to get.
For example, four of the cap on the board are labeled: Chang / 470uf / 10v / 105c / -40+
From that info, how do I find out the ripple current rating?
Thanks,
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