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hi..i have a macbook pro a1278 ...820-3115b..taking 0.300 milli amps...when i check the board there is =PPVTT_S0_DDR_LDO missing this voltage ..then i check the enable signal... =DDRVTT_EN this enable also missing

How I check the connection from j8500 to D8410..........because there is many connection pins in j8500.. If there is connection OK with led strip...how much volt come in C8473

hi.........i have macbook pro a1707,,,,part no 820-00928-A...BEFORE THIS LAPTOP CAME WITH BACKLIGHT ISUUE....also display brocken... then i trace the board..found C8473 is short...then i replace the capacitor...backlight is ok....but after 1 weak this mac came return with same backlight...

I trying to load internet recovery and also boot menu.... But no progress.....what next??

no i cant access

hi sir.... i have a macbook pro a1502...part no is 820-4924-a...the problem is keyboard and touchpad not working voltages in keyboard connector pin no4:- 3.42v no30:-3.3 v what next....?

Yes ..get 3.42 v on SMC_ONOFF_L R5170 Also get 3.42v(value also showing 10k) i try without keyboard also..still same....what next

in keyboard pin no 5 get 3.42 v also i trying to short R5116 PAD..same condition....when the system make shutdown then not turn

hi... i have a macbook pro a1502..the part no is 820-4924-a....the problm is not turn with power btn but iam sure the pwr btn is working...because when the system is turn automatically...also loading mac os...that time all keys in keyboards are working i also trying to long press pwr btn ..that...

HI....the problem is solved.....before i told you there is corrotion on R5072 & R5083...when i check the board there is 3.42 v missing on one side of R5072..i make a direct jumper from 3.42 line ...now the board is ok(may be track cut )...thanks for your support

another intresting thing is ...when first time turn on the device(autiomatic on)...during that time if i press the pwr btn long time...the system will be of...then again i trying to switch on the device with pwrbtn..its not turn on

SMC_ONOFF_L showing 3.4 v also try to short R5015/16....still same

when i check the MB i found corottion on R5072 & R 5082(these resistors are missing from board)....i replace the resistors and clear the area... but again same problm.....

Hi...i have another macbook pro a1286...part no is 820-3330-B The problem is ..not turn on with power btn...when i remove the battery ..its turn on automaticaly...everything working fine..also keyboard too working but once i turn of the mac its not powering on with power btn....i check another...

this one ready sir.....this is lvds connector problm.....inside burn...( i think when i remove the lvds cable without unplug the power..thats why damage the connector...thank u for your support...

What next.....

LCD_BKLT_EN :- 0V PWM :- 0V

both pins showing 0.500 -0.400 ohms

pin 2&3 :-3.3v pin 4 :-3.3v pin 6 :-3.3v pin 7 :-3.3v pin 38-40 :-0 v

hi..i have a macbiik pro a1286 ..part no is 820-3330-b...before it was working everything is ok...but accidently i remove the lcd cable(on working condition)......after that there is no display on screen...but iam sure external display is ok...already i check another same display...still...