For $29/mo, we provide access to advanced level technicians who will answer your questions on any Macbook board related matter to the best of their knowledge promptly & walk you through how to solve your problem so you can deliver a working board to your customer.
customer doenst want to fix a1990 ( L/B, screen, battery, too expensive) but want the data. i have the adapter for the a1706/8/7 but afaik there is no connector on these. is there a way to the data
TIA
820-00928 liquid damaged. getting 5v on usb c
getting 3.3_g3h
changed all c00 ics all 4, changed isl chip
u6903 pin 10 is 5v
d6902 pin 1 and 3 5v and pin 2 0.5v so lost on this one
if and when pretty has charge will turn on and right fan will spin real loud
thoughts TIA
Hi
8.5v on pin 3 and 4 j9000
200k r9731
100k r9715
changed led driver. jumped a5 to diode
bkl_en is 2.5v. put 3.3v from pwm just to check if it works still nothing.
pwm is 3.3v
help?
820-3023A Green Light Blinking on AC
It was liquid damaged. ultrasonic cleaned to get it to turn on. and every is fine
except... the green light blinks when its plugged in
changed i/o board and cable
same thing
if i plug it into another adapter. it works sometimes but greeen doesnt come...
Macbook Air 820-3208 11' Not turning by a/c
spilled milk
originally no power
i replaced G3H
Now
no green light on i/o board when no battery
when theres battery it turns on and charges battery. any idea?
tried new i/o cable and d/c in same thing.
TIA
Hi,
Potentially this can become a sticky
I was wondering what is the step by step process to diagnosing a macbook logic board.
What main rails are required in which order.
TIA
Liquid Damage Macbook retina 2015
green light no power
ultrasonic cleaned and made sure it was dry
plugged it in and while measuring smoke came out of the board
q7560 had a hole in it
replaced it with 2013 board (slightly different part number)
anyways same thing just the light...
liquid damage macbook air no power.
p5v_s4rs3_vfb1_r had a broken trace. jumped it and turns on now
but trackpad and mouse dont work
i can do smc reset but just option alone doesnt work
J4800
Pin 10: 3.32V
Pin 14: 5.10V
Pin 19: 3.40V
i dont have an extra trackpad and k/b to try. i doubt...
Liquid Damage Macbook Pro
Originally No green light no power... dead
U3210 was short. removed it and replaced it
U7090 had broken trace. replaced and jumped wire
U7100 had broken trace too. jumped wire and replaced
Now i get green light but doesnt turn on. plug in with battery and it turns...
Ok this one is a weird one
Customer brings in mbp 820-3115 states DVD got stuck into drive and thought it would be simple enough to take out drive and force stuck dvd out.
takes out DVD and now the computer doesnt recognize when ac adapter is plugged in and when you turn on via power button...
i have a clients board. something got stuck in headphone jack. and sound was not working either. when you toggle the volume up and down it would have the forbidden sign. replaced jack. and sound works fine. no more forbidden sign. laptop can see headphone jack when i plug it in when the computer...
i have a 820-3209 macbook air logic board. liquid damaged... no backlight. did ultrasonic cleaning and measured fuse. fuse is ok. damage was main on LED driver. i was wondering what would be the diagnostic steps to know where the issue might be .
thanks in advance