street lamp repair

gabyh

Newly Enlightened
Joined
May 30, 2010
Messages
9
hi
i have a LG-F016L like this http://by-knitgoods.en.alibaba.com/product/1411879126-220124227/ultra_bright_led_solar_garden_light_fixture_18W_AC85_265V_CHINA_factory_price.html and it's defective by water effect, like this
http://i422.photobucket.com/albums/pp303/costel_72/20150228_223359_zpstqqhk86s.jpg
http://i422.photobucket.com/albums/pp303/costel_72/20150228_223458_zpsdcwqnq4d.jpg
http://i422.photobucket.com/albums/pp303/costel_72/20150228_223507_zps14h1hxcy.jpg
I need a help for repair him and i need a foto of good pcb o a schematic of output.
I try to repair him by changing 2 pieces, a eletrolitic capacitor and rectifier diode but nothing happening. i'ts possible a missing circuit brocken after water contact with cooper pcb.
If someone have some model please post a foto of top/botom of pcb
thanks
 

gabyh

Newly Enlightened
Joined
May 30, 2010
Messages
9
i try to find a schematic of a led driver with 64v/300ma anybody can help ?
 

CoveAxe

Enlightened
Joined
Jun 10, 2014
Messages
245
I think you're wasting your time. The PCB is clearly severely damaged. At best, you will need to saw off that part of the PCB and rewire it with components. That's not going to safe, just to name one problem with doing that. That's assuming it's going to work after all the effort. This is also looks like some cheap chinese brand that I've never heard of, so quality to begin with is questionable.

Just get a new one. Don't bother with this.
 

gabyh

Newly Enlightened
Joined
May 30, 2010
Messages
9
it's true the pcb is damaged but all component are good. only Ic AFB3HL possible wrong. it's not problem i can make a new pcb 1:1 with the original but where can i find a IC or a equivalent. I have some schematics of led driver but not for 64v/300ma. I'm not interesting in a isolated circuit because the heatsink it's nort in contact with pcb or led terminals.
 

lazyace

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Joined
Jan 13, 2015
Messages
4
it's true the pcb is damaged but all component are good. only Ic AFB3HL possible wrong. it's not problem i can make a new pcb 1:1 with the original but where can i find a IC or a equivalent. I have some schematics of led driver but not for 64v/300ma. I'm not interesting in a isolated circuit because the heatsink it's nort in contact with pcb or led terminals.

If you are dead set on fixing this, you should be able to clean the PCB with isopropyl alcohol (or everclear) enough to see where the damaged traces went and temporarily patch them with suitable wire. From there, you will need to break out the multimeter and try to isolate the circuit and start troubleshooting. Without seeing the assembly in person, I would first suspect that TO-220 package MOSFET and the transformers. The transformers may have melted the insulation on the windings.
 
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