EEVblog Electronics Community Forum
Electronics => Repair => Topic started by: Nick_Balog on May 18, 2015, 03:02:31 am
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Anyone ever troubleshoot a flickering jandy watercolors pool light?
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Ok.... For anyone looking at this, I think I made some progress. I ruled out the thermal shutdown and solved a grounding issue,however my LEDs are still dim. Can anyone point me to a good tutorial or explanation on how a 110 source gets stepped down to work with LEDs (I'm guessing it's being converted to 12vdc at some point but I'm lost without schematics)
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For safety,
pool lights are almost always 12v. It is illegal (in South Africa) to install one in a pool, if the Voltage it operates on is more than that.
Normally there is a transformer in the Pool DB or Box, that steps the voltage down from Mains to 12vAC. Then the 12v goes to the pool fitting, that (might have) a Bridge Rectifier or Diodes to convert from AC to DC...
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Well, I was poking around and decided that I would replace some caps in question and these two units, although I don't quite know how to identify them nor their function on the board. The Caps are 50v if that gives you an idea. One sorta looks like it has a slight bow so it could have gone bad but it's really too slight to say it's shot by observing. I touched the top of it and got a slight jolt. In all my years of doing arcade boards I never had that happen, but that's at the 5volt level.