i came across an LG tv with a busted screen so i took everything apart down to the led strips. im thinking i should be able to use this to plug into other tv's that have the question: "is this LED driver problem, or LED strip problem?"
which is hard to answer it seems...without opening the panel which is a big deal.
upon closer inspection i realized that the strips are split in the L and R but each L and R are combined to make one long strip
the 4 pins coming from the power supplys LED driver are 2 pairs of + and - for the led's
each +- pair drives 3 of the strips in series
i guess i just want to use this as a tool for learning and diagnosing other TV's but im still foggy on a few things. or uh...a lot of things.
if i unplug one of the strips, the circuit is not completed and the rest of the strips only just flash for a moment and turns off..as to be expected...
but if there are 2 pairs of the +- and they are each driving 3 strips on a separate circuit, why do all the strips go out instead of just the 3 that were on that circuit?
something in the driver notices all the strips arent on, so shuts it all down, i guess?
if i just took a wire and bridged the circuit where i removed one of the LED strips, what would happen? would they all come on, but they would use more power than they were supposed to and then burn out?
like if it was meant to run 6 strips but i bridged all but one of them, that one led strip would receive all the power meant for 6 strips and then blow up?
and ultimately...how can i actually use this device to test other TV's LED strips? specifically this one for the sony bravia 55 inch:
https://www.badcaps.net/forum/showth...t=39670&page=4
but on that one i have 4 sets of +- pairs .... how would i go about rigging that up?
had this tv for a while now and i know the client is getting impatient but i REALLY want to avoid opening that big of a panel if i can. i almost did it the other day but i decided i should really try EVERYTHING else i can think of first
are LED strips basically all similar? or would mixing and matching led strips lead to trouble?
which is hard to answer it seems...without opening the panel which is a big deal.
upon closer inspection i realized that the strips are split in the L and R but each L and R are combined to make one long strip
the 4 pins coming from the power supplys LED driver are 2 pairs of + and - for the led's
each +- pair drives 3 of the strips in series
i guess i just want to use this as a tool for learning and diagnosing other TV's but im still foggy on a few things. or uh...a lot of things.
if i unplug one of the strips, the circuit is not completed and the rest of the strips only just flash for a moment and turns off..as to be expected...
but if there are 2 pairs of the +- and they are each driving 3 strips on a separate circuit, why do all the strips go out instead of just the 3 that were on that circuit?
something in the driver notices all the strips arent on, so shuts it all down, i guess?
if i just took a wire and bridged the circuit where i removed one of the LED strips, what would happen? would they all come on, but they would use more power than they were supposed to and then burn out?
like if it was meant to run 6 strips but i bridged all but one of them, that one led strip would receive all the power meant for 6 strips and then blow up?
and ultimately...how can i actually use this device to test other TV's LED strips? specifically this one for the sony bravia 55 inch:
https://www.badcaps.net/forum/showth...t=39670&page=4
but on that one i have 4 sets of +- pairs .... how would i go about rigging that up?
had this tv for a while now and i know the client is getting impatient but i REALLY want to avoid opening that big of a panel if i can. i almost did it the other day but i decided i should really try EVERYTHING else i can think of first
are LED strips basically all similar? or would mixing and matching led strips lead to trouble?
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