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hi duke so the BIL works and now its charging while off and BIL connected. did this fix itself or is this a known design which bill has to be connected for it to charge? im confused.
update : spoke too soon is just randomly stops charging and Bil stopped working as well. it will work for a...
R6905 keep dying (burning up) i tried running it out of the circuit but it just keeps failing. Then i ran voltage to it to see if i find a short and d6905 blew up replaced but r6905 keeps going bad. The multimeter isnt beeping to indicate a short but i suspect maybe ppdcin_s5_3v42g3h is killing...
i realized the board is powering on but its brain dead? i get no cpuvcore current sensing. Could be why its not charging but if not then Lgate on isl is only getting .600v everything else checks out.
BIL connector was unplugged no noticable water damage around the area. Battery connector does have some white residue but nothing looks badly damaged and resistors have proper measurements. Using a fluke 15B+ to measure and the board works.
Ppbus_g3h keeps shorting. I get a green flickering light on charger then it will go away ppbus_g3h will short on r6905 short goes away when removed if i replace component same thing repeats. What could be wrong?
seems like the shorting has stopped but im only getting 1.5v on ppbus_g3h and...
Oh well ive been meaning to start reballing chips like smcs anyone know where i can buy a vram stencil also that metal holder louis uses to keep smc in while reballing?
Ok well i decided to swap the bios chip and its working so far. Installing osx el capitan see how it goes.
update:installed OS and all is working fine so far
R7717 seems to be shorted to ground its trace goes under all the damage not sure if thats why? I removed it and it actually looks a lot better without it. Will there be an issue down the road without it?
I replaced led driver again ran a small wire from a5 to PPHV_S0SW_LCDBKLT since the FB trace was pretty useless. I get 8.5v on that wire now but i still get no backlight is it because bkl_pwm remains at 1.4v and bklt_en is at 2.8v? Im stumped at this point.
Update: found the issue i ran a wire...
Yes there was no continuity to ball a5 from feedback trace test poiny. it also came straight off when trying to add solder to it. Ill have to run a wire from test point of FB to A5 ball. PWM signal is present but at 1.4v
ill have to wait for my LED drivers to come in before i continue.
is it...