Hey guys! Been a while since I posted, but thought I'd check here first since you guys are the pros..
I've got a bunch of LED modules taken from our vehicles at work. My boss said that certain sections of each one were 'burned out'.. (Seems they were going out in groups of 3 or 4.. sounded like maybe a bad solder joint to me)
Brought them home and started taking them apart, and was surprised to find (when I tested them) that the entire thing IS lighting up, but certain sections are very dim.. Seem to be getting only partial power. Keep in mind they were all working fine at first, this just started happening after they've been in service for a few months. The pictures kinda suck, so I'm not sure if you'll be able to see the circuit layout well enough to figure it out, but I've included pics of the front/back of the board. The section that's dim is colored in red.
If anybody could give me a tip or tell me what to do I'd appreciate it greatly!
EDIT: Oh and forgot to mention. I've got 4 of these modules here. 3 are identical like the one pictured, the 4th is a longer version.. (Instead of 4x5 LEDs, it's 4x11) Each one has a DIFFERENT group that has gone dim.
I've got a bunch of LED modules taken from our vehicles at work. My boss said that certain sections of each one were 'burned out'.. (Seems they were going out in groups of 3 or 4.. sounded like maybe a bad solder joint to me)
Brought them home and started taking them apart, and was surprised to find (when I tested them) that the entire thing IS lighting up, but certain sections are very dim.. Seem to be getting only partial power. Keep in mind they were all working fine at first, this just started happening after they've been in service for a few months. The pictures kinda suck, so I'm not sure if you'll be able to see the circuit layout well enough to figure it out, but I've included pics of the front/back of the board. The section that's dim is colored in red.
If anybody could give me a tip or tell me what to do I'd appreciate it greatly!
EDIT: Oh and forgot to mention. I've got 4 of these modules here. 3 are identical like the one pictured, the 4th is a longer version.. (Instead of 4x5 LEDs, it's 4x11) Each one has a DIFFERENT group that has gone dim.
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