Hi I have four spotlight only one is ok? that flashes can you help determine which lamp should I replace look at the pictures so you understand better thank you
Led spotlight 220-240W-50Hz max30W
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Re: Led spotlight 220-240W-50Hz max30W
is there no one who wants or is interested to help for this thread? don't know how they work probably they are divided in three blocks of 16 joints at a time. i have tested with ledtester which gives 23v for the whole board which has 54 joints. i don't manage to light a single one to get the value please if someone who knows i am very grateful -
Re: Led spotlight 220-240W-50Hz max30W
Take a better picture of the transformer data plate so I can read the entire thing the picture that you posted is not very clear to read everything
Also take a picture of the back of the circuit board so I can what it looks likeComment
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Re: Led spotlight 220-240W-50Hz max30W
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Re: Led spotlight 220-240W-50Hz max30W
here är det,so you see it's a bit dark around the big diode it's been really hot don't know if it burned because when I cleaned it all went away but there is trace that it got really hot there you can see the difference in the next postLast edited by bohaboha; 10-04-2022, 06:40 PM.Comment
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Re: Led spotlight 220-240W-50Hz max30W
Here is two pages of the data that I could find of the ZC811C ic chip
This ic chip one of the pin when looking at with the print so you can read the print the pin on the most left pin look like it not a good connection to the board
You can find this ic chip on eBay
https://www.ebay.com/itm/33312542232...Bk9SR7KYyd_0YALast edited by sam_sam_sam; 10-04-2022, 08:29 PM.Comment
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Re: Led spotlight 220-240W-50Hz max30W
Here is two pages of the data that I could find of the ZC811C ic chip
This ic chip one of the pin when looking at with the print so you can read the print the pin on the most left pin look like it not a good connection to the board
You can find this ic chip on eBay
https://www.ebay.com/itm/33312542232...Bk9SR7KYyd_0YAComment
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Re: Led spotlight 220-240W-50Hz max30W
Here is two pages of the data that I could find of the ZC811C ic chip
This ic chip one of the pin when looking at with the print so you can read the print the pin on the most left pin look like it not a good connection to the board
You can find this ic chip on eBay
https://www.ebay.com/itm/33312542232...Bk9SR7KYyd_0YAComment
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Re: Led spotlight 220-240W-50Hz max30W
There 9 parallel strings 6 in series @ 2.5 volt LEDs = 15.5 volts power supply voltage
So if the LED driver ic chip is defective or there is an issue with the switching power supply or you have LED ic chips over current or do not light at all or very dim these are going to be most of your issues unless you have bad soldering jointsLast edited by sam_sam_sam; 10-08-2022, 08:27 AM.Comment
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Re: Led spotlight 220-240W-50Hz max30W
There 9 parallel strings 6 in series @ 2.5 volt LEDs = 15.5 volts power supply voltage
So if the LED driver ic chip is defective or there is an issue with the switching power supply or you have LED ic chips over current or do not light at all or very dim these are going to be most of your issues unless you have bad soldering jointsComment
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