Recent content by imoree

will change mcp and post when done.

trackpad disconnected vcore present changed ddr, tried pram and smc reset. nothing changed.

but i have pp vcore, smc core , proper khz reading from RTC crystals? am i missing something here? i will replace this if you think that is what it is .

checked resistance to ground but didnt post results and there were within range . Also checked traces. I believe i will reflow the 8550 as i didnt see it dancing for certain. have backlight , but wont sleep when lid closed, do i need to change ir/sleep sensor? would water have damaged that as...

WOW>. put alcohol on some suspect chips, u7500 fried. Changed and now voltage present and no more fluctuations. Now starts but no screen. no backlight no chime...

open - 3.4 Volts Closed - 3.4 volts. where would i find reed switch? is that even doable?

diode mode on all led return lines check out ok √√√ reistors all 0.1 or 0.3Ω -- maybe replace the lvds cable? the l8550 i replaced was brand new from package not a donor board.

again, fluctuates here as well . 12.58 v down to .03 volts then back up again. on both sides of fuse **EDIT**;

did that and all checked out good.

Hello Again, this was my brand new 2012 model laptop after 13 months until my cat jumped up and spilled my water over laptop. immediately pulled apart and dried out with hot air station and removed battery. After a few days i tried to boot up but no backlight. Ended up replacing l8550 , but...

Hello, have an 820-2879 no liquid damage - does not chime and does not start . voltage @ q7085 fluctuates from 16.9 v down to 3.3volts and then back up again. as such, computer wont boot. power isnt stable @ u7200. Replaced ISL6295 but no change, Checked Current limiting circuit and resistors/...