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- Thread starter damontoy
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Switch them off, open it up and clean it off using cleaning solution (radio shack) you need to get the salt out of there. Then it's really up to letting it dry off. You could put the board into rice to try speeding up the drying process.
Google at this point will likely be your fastest guide
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Google at this point will likely be your fastest guide
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+1 to above. If his solution doesn't work, chances are you shorted one of you leads between the leds to ground or to open in thag string. I would suspect your driver is still good since only half of them are affected, but if there are two blue drivers, then that may be the problem. Troubleshoot these things to determine the source of the problem.
1. While the unit is plugged in and on, connect your voltmeter between V+ and V- of the driver that is running the string that still works and record the value. Use this as a baseline for the second driver if there are two for blues. Check the voltage between V+ and V- of the other driver. If this is a similar voltage, your driver is more than likely fine.
2. Perform a visual inspection of the entire circuit board and wires. Look for anything that looks black or melted. Post up pics of anything black, has a brown residue, or melted and I can help you track down a replacement that is equivalent and/or a fix for it.
3. Set your multimeter to the diode setting and check your leds in the string that isnt working one at a time between the V+ connection and the V- connection. Look at the manual to see what means what in your multimeter. For cheapo meters, it will ring when there is an issue, but better meters will tell you a voltage drop to forward bias it. If you have the better meter, you should read between 0.6V and 0.8V. If any leds have fused or burnt up, you will need to solder in equivalent color, wattage, and forward bias voltage leds. The manufacturer can probably sell you a replacement or al least give you a model number.
The joy of engineering is to find a straight line on a double logarithmic graph.
1. While the unit is plugged in and on, connect your voltmeter between V+ and V- of the driver that is running the string that still works and record the value. Use this as a baseline for the second driver if there are two for blues. Check the voltage between V+ and V- of the other driver. If this is a similar voltage, your driver is more than likely fine.
2. Perform a visual inspection of the entire circuit board and wires. Look for anything that looks black or melted. Post up pics of anything black, has a brown residue, or melted and I can help you track down a replacement that is equivalent and/or a fix for it.
3. Set your multimeter to the diode setting and check your leds in the string that isnt working one at a time between the V+ connection and the V- connection. Look at the manual to see what means what in your multimeter. For cheapo meters, it will ring when there is an issue, but better meters will tell you a voltage drop to forward bias it. If you have the better meter, you should read between 0.6V and 0.8V. If any leds have fused or burnt up, you will need to solder in equivalent color, wattage, and forward bias voltage leds. The manufacturer can probably sell you a replacement or al least give you a model number.
The joy of engineering is to find a straight line on a double logarithmic graph.
Depends on if it is fixed properly and where it is mounted. If its in an enclosed canopy and it is not thouroughly cleaned, tested and repaired, then it is a major fire hazard. If its hanging from the ceiling with metal hangers, not so much.
Optimists say the glass is half full. Pessimists say the glass is half empty. Engineers say the glass is twice the size that it needs to be.
Optimists say the glass is half full. Pessimists say the glass is half empty. Engineers say the glass is twice the size that it needs to be.
