LED lcd cable output voltages?

HAz · 26 Oct 2012 at 19:58

Anyone have a clue what the output voltage off each pin in a lcd cable are?

Just change a dc jack on a samsung r510 and the back light on the lcd isnt coming on now?

Not sure if it was working before but assume so. so annoyed!

HAz · 26 Oct 2012 at 20:37

Thanks will check all voltages tomorrow, all I did was solder in a new jack plug, damn things.

HAz · 27 Oct 2012 at 11:34

yea i think its an inverter, just took screen out and its not LED its the old style cathod thing.

tested the cable voltages.

the inverter connector has 2 19v lines (constant) 1 3v (when on, 0v when laptop off) 1 0v (prob neg) and then 2 black 0v lines also prob negs.

and the inverter is giving out 0v's.

it did have a fuse on it which is ok but im pretty sure its dead.

HAz · 27 Oct 2012 at 11:38

when i keep the power lead in but turn the laptop off all vlotages stay the same apart from the 3v which goes to 0v which i assume is a switch live.