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HI,
I have a A1708 mac...part no is 820-00840--A
in my c type reader its take 0.465 ma
all coil voltages are active...but
PPVCCGT_S0G_PH3
missing (there is no voltages on L7410,L7420,L7430)
ALL_SYS_PWRGD
Get 3.2 v
PM_PCH_SYS_PWROK
get 0v
PM_PCH_PWROK
get 3.12v
Then i...
there is no sign of liquid damage....it will take 19.9 v 0.039a on my regulator
active voltages
PPBUS_G3H
12.63 v
PP3V3_G3H
3.3v
PP3V0_G3H
3 v
PP5V_S5
5 v
also i found small symbol of buring near c7961...so i remove the component...still same
w3hat next......plz...
IN DIODE mode value
PPVOUT_S0_LCDBKLT_F
showing 0.020(with lcd and without lcd also same)
there is no sign of water damage ..
in voltage mode
PPVOUT_S0_LCDBKLT_F
0 v
PPVIN_S0SW_LCDBKLT_F
have 12.6 v(with lcd)
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
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...
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....?
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...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...
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...
hi..
ihave a macbook pro a1278..part no is 820-3115-b
when i recieve the board..there is no greenlight...found isl6259 is faulty..i change it...green light is ok..but ppbusg3hot is not correct...check sensing resistors..
also change resisters...now board is turn on....but ppbus volt is varrying...