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good thing is no smoke this time! still no backlight UPDATE: lcdbklt_en_l 11.72v lcdbklt_en 0v lcdbklt_en_div 11.9v ppbus_s0_bklt_fused 12.4v ppbus_sw_lcdbklt_pwr 0v ppvout_s0_lcdbklt 56v bklt_plt_rst_l 3.3v pp5v_s0 5.1v pp3v3_s0 3.3v R9708 44k ???? 1%? R9709 43.5k ???? 1%?

yes i check once logged into osx. Actually no keyboard AND no trackpad i cant get into boot menu when i hold option? maybe coz keyboard also not working

ah man - bad bios. unbelievable.

usb activity i usually just plug in usb mouse see if laser turn on... but i also try with osx usb drive and flashing! i also try pram. i think u mean pin 3/4 because pin 2 no connect? anyways 3 25.35 4 25.36 14 2.6 15 3.2 16 3.2 18 3.3 19 3.3 in first few seconds no voltage. i will test...

Hey guys. This one has no chime no boot. doesn't seem to have any liquid. all the voltages I have measured look good as I was probing around I found r7630 is at 6.2v seems a bit crazy! I measured and from u7600 pin 15 there is 6.2v on p1v0s0_vbst & p1v05s0_boot_rc There is fan spin light on...

Hey guys. this one is fully working system but the trackpad fails - i tried a good working trackpad & keyboard it worked. After few restarts and sitting around for a bit NO trackpad again! It doesnt seem to have any corrosion oh water damage. im not sure what the best way to diagnose these...

Just want to know if anyone knows more about this... i have been seeing so many losing its serial. What causes it?

55.3k with no lcd connected. 54.6k with lcd connected i havent replaced fuse yet but i pulled off board. scared to put back! :cool:

informaticos.... how did you know? just as you said holes in r7021/22 thank you are genius but how? lol thats what my multi says...

will it be problem if not replaced?

im not confident to change cable on retina display. yes you advised correct. when you say check video cable you mean inspection? i have pin 1 now burnt i rebuilt with another pin and some uv curing.

res to ground .131v resistance 17/18 .0001v resistance 27/28 .706v i had some alot of flux on there so thats why i use UC. i run at @ 60c for 1-2 minutes each side. pp3v42_g3h is cycling - light is turning on and off.

Hey guys i got one of these boards in. few patches of water damage. good thing is it is very recent. It is still booting but wanted to make sure and clean b0ard - i fluxed the affected areas and reflowed components. the only thing is c6499 is badly corroded and missing one end. I dont have any...

I changed lcd connector. pluged in screen checked for short to ground nothing changed fuse - and POF! AGAIN! is 260ohm too low?

I ran board through ultrasonic and put back together only to find out i got 1.1v on ppbus - still got green light when i press power it light flashes off

changed ISL625 all good now. i have a question - i notice isl625 9ahrtz and 9hrtz. the orientation is different - but are they interchangeable?

hey i tested with chip removed - scl & sda both report .627

sda .548 scl .606

78k smbus_smc_5_g3_sda 3.4v 88k smbus_smc_5_g3_scl 3.35v No smc_pm_g3_en!

BWAHAHAHHAHAHHAHAH nice